Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Schwartz, Yitzhack
Shmayahu, Yizhaq
Dichterman, Eli
Abrégé
Devices and methods for tissue lesion assessment and/or creation based on dielectric properties are disclosed. In some embodiments, one or more probing frequencies are delivered via electrodes including an electrode in proximity to a tissue (for example, myocardial tissue). Measured dielectric properties (such as impedance properties), optionally together with other known and/or estimated tissue characteristics, are used to determine the lesion state of the tissue. In some embodiments, a developing lesion state is monitored during treatment formation of a lesion (for example, ablation of heart tissue to alter electrical transmission characteristics).
A61B 5/0538 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps invasive, p. ex. en utilisant un cathéter
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
G16H 10/60 - TIC spécialement adaptées au maniement ou au traitement des données médicales ou de soins de santé relatives aux patients pour des données spécifiques de patients, p. ex. pour des dossiers électroniques de patients
G16H 30/20 - TIC spécialement adaptées au maniement ou au traitement d’images médicales pour le maniement d’images médicales, p. ex. DICOM, HL7 ou PACS
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Adler, Andrew
Grychtol, Bartlomiej
Abrégé
Methods and apparatuses for imaging an intra-body object. An exemplary method includes: measuring electrical measurements using electrodes of a probe hovering inside a body lumen; identifying, based on said electrical measurements, a volume encompassing the electrodes used for the measurements as a volume free of any lumen wall; and inferring, from the identified volume free of any lumen wall, a wall in the vicinity of the probe, thereby imaging at least a portion of the object.
G01N 27/04 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant l'impédance en recherchant la résistance
G01R 27/16 - Mesure de l'impédance d'un élément ou d'un réseau dans lequel passe un courant provenant d'une autre source, p. ex. câble, ligne de transport de l'énergie
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Abrégé
Methods and devices using measurements of heart electrophysiological activity to guide structural heart disease interventions, and in some particular embodiments, implantation of heart valve annuloplasty devices. In some embodiments, measurements of heart electrophysiological activity are mapped into locations of a heart model defined by one or more additional measurement modalities. Locations to map electrophysiological data to, in some embodiments, are determined by non-electrophysiological measurements simultaneous with the electrophysiological data measurement which locate a probe—for example, measurements made by the probe itself, and/or measurements which themselves indicate positioning of the probe.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Abrégé
Systems and method for remote field measurement-based mapping of anatomical structures (e.g., using impedance image of electrical fields) are described. In some embodiments, an image of features within a target region is produced by analysis of a spatial pattern of field measurements made in a measurement region remote from the target region features; for example, but not exclusively, by treating the spatial arrangement of field measurements in some portion of the measurement region as indicating the spatial (e.g., angular and/or distance) arrangement of features (e.g., anatomical structure of topography and/or tissue type) in the target region.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Madar, Eyal Henri
Abrégé
A conformational state of a medical device operated within a body lumen is determined by measuring, using the medical device as an electrode, an electrical parameter which varies in a correspondence with a conformational state (e.g., deployment state) of the portion of the medical device used as the electrode. The conformational state of the medical device is determined, based on the electrical parameter; and an image is presented indicating the determined conformational state. In some embodiments, the electrical parameter is a self-impedance of the portion of the medical device used as the electrode. In some embodiments, current positioning of the medical device is used as part of calibrating a parametric relationship between the electrical parameter and conformational states of the medical device.
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 17/12 - Instruments, dispositifs ou procédés chirurgicaux pour ligaturer ou comprimer par un autre moyen les parties tubulaires du corps, p. ex. les vaisseaux sanguins ou le cordon ombilical
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 5/287 - Supports pour électrodes multiples, p. ex. cathéters à électrode pour des études électrophysiologiques [EEP]
A61B 5/367 - Études électrophysiologiques [EEP], p. ex. cartographie de l’activation électrique ou cartographie électroanatomique
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Dichterman, Eli
Abrégé
Electrical field-guided positioning of a second device within a body cavity, using electrical field mapping information generated from electrical field measurements by electrodes of a first device. The first device, in some embodiments, is a catheter electrode probe, and the second device is an internally implantable and/or operated medical device. An exposed, electrically conductive portion of the second device is optionally configured to be used as an electrical field measuring electrode. A rule is applied to measurements made by this electrode to estimate its position within a body cavity. The rule is generated, in some embodiments, using measurements made by the first device. In some embodiments, electrical measurements are used to guide implantation verification. In some embodiments, electrical measurements are used to guide navigation at and through a septal wall between body cavities.
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 17/12 - Instruments, dispositifs ou procédés chirurgicaux pour ligaturer ou comprimer par un autre moyen les parties tubulaires du corps, p. ex. les vaisseaux sanguins ou le cordon ombilical
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Abrégé
Degree of occlusion is monitored for an occlusive device configured to occlude passage of fluid between two compartments in a lumenal space of a body of a patient. In some embodiments, changes in an electrical signal measured from the body of the patient are induced by perturbing the fluid; for example, by “tagging” a portion of fluid with a perturbation of temperature and/or composition. The degree of occlusion is estimated based on the measured changes. The electrical signal changes may be indicative of fluid movements redistributing the perturbed fluid among the two compartments; for example, by diffusion, mixing, and/or jetting of fluid.
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
A61B 17/12 - Instruments, dispositifs ou procédés chirurgicaux pour ligaturer ou comprimer par un autre moyen les parties tubulaires du corps, p. ex. les vaisseaux sanguins ou le cordon ombilical
10.
IMPEDANCE-BASED CHARACTERIZATION OF INTRACARDIAC STRUCTURE
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Adler, Andrew
Stowe, Symon
Abrégé
Methods and devices using measurements of heart electrophysiological activity to guide structural heart disease interventions. In some embodiments, measurements of heart electrophysiological activity are mapped into locations of a heart model defined by one or more additional measurement modalities. In some embodiments, the additional measurement modalities comprise impedance measurements. Locations to map electrophysiological data to, in some embodiments, are determined by non-electrophysiological measurements simultaneous with the electrophysiological data measurement which locate a probe—for example, measurements made by the probe itself, and/or measurements which themselves indicate positioning of the probe.
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 5/0538 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps invasive, p. ex. en utilisant un cathéter
A61B 5/287 - Supports pour électrodes multiples, p. ex. cathéters à électrode pour des études électrophysiologiques [EEP]
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Abrégé
Heart tissue electrical activity mapping used to guide the placement of devices to intervene in (treat) structural heart disease. In some embodiments, the intervention comprises placement of an implantable device, and/or positioning of a therapeutic device used to remove and/or remodel tissue. In some embodiments, electrical activity mapping is performed along with spatial mapping of a body cavity. In some embodiments, the intervention device position is compared to the measured positions of anatomical structures critical to heart electrical function to assess and/or prevent complications due to the device damaging heart electrical function.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Dichterman, Eli
Abrégé
Electrical field-guided positioning of a second device within a body cavity, using electrical field mapping information generated from electrical field measurements by electrodes of a first device. The first device, in some embodiments, is a catheter electrode probe, and the second device is an internally implantable and/or operated medical device. An exposed, electrically conductive portion of the second device is optionally configured to be used as an electrical field measuring electrode. A rule is applied to measurements made by this electrode to estimate its position within a body cavity. The rule is generated, in some embodiments, using measurements made by the first device.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Gerbat, Oran
Landau, Yehuda
Abrégé
A method of computing a dielectric map is disclosed comprising exciting at least one pair of electrodes according to an excitation scheme, the at least one pair of electrodes comprising at least one pair of in-body electrodes (also referred herein below intra-body electrode) located inside of the examined living body, measuring and recording voltages developing on the in-body electrodes during the excitation according to the excitation scheme, solving an inverse problem to derive a 3D dielectric map from the recorded voltages and optionally providing a 3D image of the body tissues based on the 3D dielectric map. Methods are also disclosed that combine intrabody electrodes and surface electrodes secured to the body or use only surface electrodes. Embodiments encompass the use of constraints in deriving the 3D dielectric map and combining measurements made at different locations inside the body with moving intrabody electrodes. Disclosed methods are not limited to methods including exciting and measuring on the body but also extend to methods of processing data previously obtained to derive the 3D map.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Dichterman, Eli
Abrégé
A method of generating a combined image of a body part from a sequence of partially overlapping source images of the body part, each of the partially overlapping source images showing the body part at one of a plurality of different times, the source images being ordered in the sequence according to the different times, the method including defining a temporally coherent sequence of transformations, for registering the partially overlapping source images in the sequence with each other, registering the source images to each other using the defined temporally coherent sequence of transformations, to obtain co-registered images, and combining at least some of the co-registered images into a combined image. Related apparatus and methods are also described.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Schwartz, Yitzhack
Ibragimov, Zalman
Ben David, Yehonatan
Shmayahu, Yizhaq
Dichterman, Eli
Ben-Haim, Shlomo
Abrégé
A method of estimating a spatial relationship between at least a part of a patient esophagus and a heart chamber, including: measuring at least one electric parameter at one or more positions within the heart chamber to obtain measured values; and estimating the spatial relationship based on the measured values.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Dichterman, Eli
Schwartz, Yitzhack
Shmayahu, Yizhaq
Ben-Haim, Shlomo
Abrégé
In some embodiments, a body cavity shape of a subject is reconstructed based on intrabody measurements of voltages by an intrabody probe (for example, a catheter probe) moving within a plurality of differently-oriented electromagnetic fields crossing the body cavity. In some embodiments, the method uses distances between electrodes as a spatially calibrated ruler. Positions of measurements made with the intrabody probe in different positions are optionally related by using spatial coherence of the measured electromagnetic fields as a constraint. Optionally, reconstruction is performed without using a detailed reference (image or simulation) describing the body cavity shape. Optionally, reconstruction uses further information to refine and/or constrain the reconstruction; for example: images, simulations, additional electromagnetic fields, and/or measurements characteristic of body cavity landmarks. Optionally, reconstruction accounts for time-dependent cavity shape changes, for example, phasic changes (e.g., heartbeat and/or respiration), and/or changes in states such as subject hydration, edema, and/or heart rate.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Madar, Eyal Henri
Gordon, Urit
Adler, Andrew
Abrégé
Methods and systems are provided for estimating velocity of blood, flowing along a blood vessel at a blood flow direction, based on measurements made using a medical implement that resided in a portion of the blood vessel and comprised a first electrode and a second electrode. One of the disclosed methods include:
accessing voltage measurements measured at the first and second electrodes when a bolus of a fluid went through the portion of the blood vessel at the blood flow direction; wherein the voltage measurements were made at the first and the second electrodes; estimating a time that took the bolus to go from the first electrode to the second electrode based on the accessed voltage measurements; and estimating the velocity of the blood based on the estimated time and a distance known to exist along the medical implement between the first and second electrodes.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Schwartz, Yitzhack
Dichterman, Eli
Shmayahu, Yizhaq
Abrégé
There is provided a method of displaying a pre-acquired three dimensional (3D) image of at least a portion of an organ of a patient, the method comprising: receiving a plurality of electrical readings, each from a different electrode mounted on a catheter inside the portion of the organ of the patient, wherein the electrodes are mounted on the catheter at known distances from each other, transforming the plurality of electrical readings to a corresponding plurality of image points using a mapping transformation that transforms each electrical reading of the catheter from inside the portion of the organ of the patient to an anatomically corresponding image point in the 3D image based on the known distances, and displaying the 3D image with a marking of at least one of the plurality of image points.
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
A61B 5/0538 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps invasive, p. ex. en utilisant un cathéter
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Gluhovsky, Leonid
Schwartz, Yitzhack
Dichterman, Eli
Yarden, Yaara
Abrégé
Methods for creation and use (e.g., for navigation) of displays of flattened (e.g., curvature-straightened) 3-D reconstructions of tissue surfaces, optionally including reconstructions of the interior surfaces of hollow organs. In some embodiments, data comprising a 3-D representation of a tissue surface (for example an interior heart chamber surface) are subject to a geometrical transformation allowing the tissue surface to be presented substantially within a single view of a flattened reconstruction. In some embodiments, a catheter probe in use near the tissue surface is shown in positions that correspond to positions in 3-D space sufficiently to permit navigation; e.g., the probe is shown in flattened reconstruction views nearby view regions corresponding to regions it actually approaches. In some embodiments, automatic and/or easily triggered manual view switching between flattened reconstruction and source reconstruction views is implemented.
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Madar, Eyal Henri
Gerbat, Oran
Abrégé
A method of computing a dielectric map is disclosed comprising exciting at least one pair of electrodes according to an excitation scheme, the at least one pair of electrodes comprising at least one pair of in-body electrodes (also referred herein below intra-body electrode) located inside of the examined living body, measuring and recording voltages developing on the in-body electrodes during the excitation according to the excitation scheme, solving an inverse problem to derive a 3D dielectric map from the recorded voltages and optionally providing a 3D image of the body tissues based on the 3D dielectric map. Methods are also disclosed that combine intrabody electrodes and surface electrodes secured to the body or use only surface electrodes. Embodiments encompass the use of constraints in deriving the 3D dielectric map and combining measurements made at different locations inside the body with moving intrabody electrodes. Disclosed methods are not limited to methods including exciting and measuring on the body but also extend to methods of processing data previously obtained to derive the 3D map.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Abrégé
A method of performing dielectric-based imaging is disclosed comprising exciting at least one pair of electrodes according to an excitation scheme, the at least one pair of electrodes comprising at least one pair of in-body electrodes (also referred herein below intra-body electrode) located inside of the examined living body, measuring and recording voltages developing on the in-body electrodes during the excitation according to the excitation scheme, solving an inverse problem to achieve a 3D dielectric map from the recorded voltages and optionally providing a 3D image of the body tissues based on the 3D dielectric map.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Schwartz, Yitzhack
Ibragimov, Zalman
Ben David, Yehonatan
Dichterman, Eli
Abrégé
Systems and methods are described for planning of catheter ablation procedures, and in particular for planning of the placement of lesions and/or parameters used in ablation. In some embodiments, planning is based on thermal and/or dielectric simulation of lesions, individualized to the anatomy of the particular patient. Optionally, a plan comprises planning of a path along which an ablation lesion is to be formed, the ablation lesion optionally comprising one or more sub-lesions. The plan is optionally optimized for one or more criteria including, for example: minimization of path length, minimization of sub-lesion number, simplification of catheter maneuvering, avoidance of collateral damage to non-target tissue, access to the target dependent on anatomy shape and/or catheter mechanics, and/or features of the target anatomy such as tissue wall thickness and/or fiber direction.
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
G06F 30/20 - Optimisation, vérification ou simulation de l’objet conçu
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
G16H 10/60 - TIC spécialement adaptées au maniement ou au traitement des données médicales ou de soins de santé relatives aux patients pour des données spécifiques de patients, p. ex. pour des dossiers électroniques de patients
G16H 30/20 - TIC spécialement adaptées au maniement ou au traitement d’images médicales pour le maniement d’images médicales, p. ex. DICOM, HL7 ou PACS
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
H02K 7/18 - Association structurelle de génératrices électriques à des moteurs mécaniques d'entraînement, p. ex. à des turbines
G06F 17/18 - Opérations mathématiques complexes pour l'évaluation de données statistiques
G01H 17/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores non prévue dans les autres groupes de la présente sous-classe
A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
25.
IMPEDANCE-BASED CHARACTERIZATION OF INTRACARDIAC STRUCTURE
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Adler, Andrew
Stowe, Symon
Abrégé
Methods and devices using measurements of heart electrophysiological activity to guide structural heart disease interventions. In some embodiments, measurements of heart electrophysiological activity are mapped into locations of a heart model defined by one or more additional measurement modalities. In some embodiments, the additional measurement modalities comprise impedance measurements. Locations to map electrophysiological data to, in some embodiments, are determined by non-electrophysiological measurements simultaneous with the electrophysiological data measurement which locate a probe—for example, measurements made by the probe itself, and/or measurements which themselves indicate positioning of the probe.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Shmayahu, Yizhaq
Schwartz, Yitzhack
Abrégé
Disclosed herein is a method of graphically presenting an indicating marker over a 3-D model of a tissue surface during a catheterization procedure, comprising determining a region over the 3-D model, deforming the indicating marker to congruently match a shape defined by the 3-D model across the region at a plurality of positions; and rendering the 3-D model into an image including the deformed indicating marker by generating an image of the 3-D model covered by said deformed indicating marker.
G06T 19/20 - Édition d'images tridimensionnelles [3D], p. ex. modification de formes ou de couleurs, alignement d'objets ou positionnements de parties
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A61B 5/107 - Mesure de dimensions corporelles, p. ex. la taille du corps entier ou de parties de celui-ci
G06T 17/00 - Modélisation tridimensionnelle [3D] pour infographie
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Madar, Eyal Henri
Abrégé
A conformational state of a medical device operated within a body lumen is determined by measuring, using the medical device as an electrode, an electrical parameter which varies in a correspondence with a conformational state (e.g., deployment state) of the portion of the medical device used as the electrode. The conformational state of the medical device is determined, based on the electrical parameter; and an image is presented indicating the determined conformational state. In some embodiments, the electrical parameter is a self-impedance of the portion of the medical device used as the electrode. In some embodiments, current positioning of the medical device is used as part of calibrating a parametric relationship between the electrical parameter and conformational states of the medical device.
A61B 17/12 - Instruments, dispositifs ou procédés chirurgicaux pour ligaturer ou comprimer par un autre moyen les parties tubulaires du corps, p. ex. les vaisseaux sanguins ou le cordon ombilical
A61B 5/0538 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps invasive, p. ex. en utilisant un cathéter
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Abrégé
Degree of occlusion is monitored for an occlusive device configured to occlude passage of fluid between two compartments in a lumenal space of a body of a patient. In some embodiments, changes in an electrical signal measured from the body of the patient are induced by perturbing the fluid; for example, by "tagging" a portion of fluid with a perturbation of temperature and/or composition. The degree of occlusion is estimated based on the measured changes. The electrical signal changes may be indicative of fluid movements redistributing the perturbed fluid among the two compartments; for example, by diffusion, mixing, and/or jetting of fluid.
A61B 17/12 - Instruments, dispositifs ou procédés chirurgicaux pour ligaturer ou comprimer par un autre moyen les parties tubulaires du corps, p. ex. les vaisseaux sanguins ou le cordon ombilical
A61B 5/028 - Mesure du débit sanguin utilisant des marqueurs, p. ex. dilution de colorant par thermodilution
A61B 5/0538 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps invasive, p. ex. en utilisant un cathéter
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
A61M 5/00 - Dispositifs pour faire pénétrer des agents dans le corps par introduction sous-cutanée, intravasculaire ou intramusculaireAccessoires à cet effet, p. ex. dispositifs de remplissage ou de nettoyage, appuis-bras
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Dichterman, Eli
Abrégé
Electrical field-guided positioning of a second device within a body cavity, using electrical field mapping information generated from electrical field measurements by electrodes of a first device. The first device, in some embodiments, is a catheter electrode probe, and the second device is an internally implantable and/or operated medical device. An exposed, electrically conductive portion of the second device is optionally configured to be used as an electrical field measuring electrode. A rule is applied to measurements made by this electrode to estimate its position within a body cavity. The rule is generated, in some embodiments, using measurements made by the first device. In some embodiments, electrical measurements are used to guide implantation verification. In some embodiments, electrical measurements are used to guide navigation at and through a septal wall between body cavities.
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 34/00 - Chirurgie assistée par ordinateurManipulateurs ou robots spécialement adaptés à l’utilisation en chirurgie
A61B 5/0538 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps invasive, p. ex. en utilisant un cathéter
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 17/12 - Instruments, dispositifs ou procédés chirurgicaux pour ligaturer ou comprimer par un autre moyen les parties tubulaires du corps, p. ex. les vaisseaux sanguins ou le cordon ombilical
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 6/12 - Agencements pour détecter ou localiser des corps étrangers
A61B 8/00 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A61M 5/168 - Moyens pour commander l'écoulement des agents vers le corps ou pour doser les agents à introduire dans le corps, p. ex. compteurs de goutte-à-goutte
30.
SYSTEM, METHOD AND ACCESORIES FOR DIELECTRIC-MAPPING
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Kuybeda, Oleg
Landau, Yehuda
Madar, Eyal Henri,
Adler, Andrew
Yogev, Itzhak
Ben-Haim, Shlomo
Abrégé
A method of determining a spatial distribution of one or more dielectric properties in a region of a human or animal body is disclosed. The method comprises accessing a model defined by one or more model parameters representing structural and dielectric properties of a structure, determining a first set of values of parameters of the model and determining a second set of values of parameters of the model. The first set of values is based on measurements from a first set of field sensing electrodes disposed on a tool and at positioned at a respective first set of positions in the region. The second set of values is based on measurements from a second set of field sensing electrodes disposed on the tool and positioned at a respective second set of positions in the region. The method further comprises determining a first distribution of one or more dielectric properties in a first portion of the region based on the first set of values and the model, and determining a second distribution of one or more dielectric properties in a second portion of the region based on the second set of values and the model. An indication of displacement between the first and second set of positions is determined and the first and second spatial distributions are combined using the indication of the displacement.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Madar, Eyal Henri
Ben-Haim, Shlomo
Landau, Yehuda
Adler, Andrew
Kuybeda, Oleg
Abrégé
Methods and systems of computing parameter values of one or more model parameters are described. The model models structural and dielectric properties of a structure in a human or an animal body. An exemplary method includes: accessing voltage measurements made at different places in the vicinity of the structure by one or more in-body field sensing electrodes in response to currents applied to one or more field supplying electrodes; and computing the parameter values by adjusting the parameter values to fit predicted voltage values to the accessed voltage measurements, wherein the predicted voltage values are predicted from the model for the currents applied to the field supplying in-body electrodes.
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 5/053 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A61B 5/02 - Détection, mesure ou enregistrement en vue de l'évaluation du système cardio-vasculaire, p. ex. mesure du pouls, du rythme cardiaque, de la pression sanguine ou du débit sanguin
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
G06F 3/14 - Sortie numérique vers un dispositif de visualisation
A61B 5/0522 - Tomographie par induction magnétique
32.
Systems and methods for reconstruction of medical images
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Rodriguez, Haim
Abrégé
There is provided a computer implemented method of reconstructing an image of a body cavity shape of a subject based on a plurality of location indications, indicating locations of at least one sensor disposed on an intrabody probe within the body cavity, the method comprising: receiving data indicative of the plurality of location indications, identifying based on the data at least a first group and a second group of location indications, and reconstructing the body cavity from the data, using a first reconstruction method for the first group of location indications, and a second reconstruction method for the second group of location indications.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Schwartz, Yitzhack
Dichterman, Eli
Rabinovich, Adi
Abrégé
Devices and methods for assessing tissue contact based on dielectric properties and/or impedance sensing are disclosed. In some embodiments, one or more probing frequencies are delivered via electrodes including an electrode in proximity to a tissue (for example, myocardial tissue). In some embodiments, dielectric parameter values, optionally together with other known and/or estimated tissue characteristics, are measured to determine a contact quality with the tissue. In some embodiments, dielectric contact quality is used, for example, in guiding the formation of a lesion (for example, RF ablation of heart tissue to alter electrical transmission characteristics).
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 5/0538 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps invasive, p. ex. en utilisant un cathéter
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
G06F 30/00 - Conception assistée par ordinateur [CAO]
G06F 30/20 - Optimisation, vérification ou simulation de l’objet conçu
G16H 10/60 - TIC spécialement adaptées au maniement ou au traitement des données médicales ou de soins de santé relatives aux patients pour des données spécifiques de patients, p. ex. pour des dossiers électroniques de patients
G16H 30/20 - TIC spécialement adaptées au maniement ou au traitement d’images médicales pour le maniement d’images médicales, p. ex. DICOM, HL7 ou PACS
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
G01H 17/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores non prévue dans les autres groupes de la présente sous-classe
G06F 17/18 - Opérations mathématiques complexes pour l'évaluation de données statistiques
H02K 7/18 - Association structurelle de génératrices électriques à des moteurs mécaniques d'entraînement, p. ex. à des turbines
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Schwartz, Yitzhack
Shmayahu, Yizhaq
Dichterman, Eli
Abrégé
Devices and methods for tissue lesion assessment and/or creation based on dielectric properties are disclosed. In some embodiments, one or more probing frequencies are delivered via electrodes including an electrode in proximity to a tissue (for example, myocardial tissue). Measured dielectric properties (such as impedance properties), optionally together with other known and/or estimated tissue characteristics, are used to determine the lesion state of the tissue. In some embodiments, a developing lesion state is monitored during treatment formation of a lesion (for example, ablation of heart tissue to alter electrical transmission characteristics).
A61B 5/0538 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps invasive, p. ex. en utilisant un cathéter
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
G16H 10/60 - TIC spécialement adaptées au maniement ou au traitement des données médicales ou de soins de santé relatives aux patients pour des données spécifiques de patients, p. ex. pour des dossiers électroniques de patients
G16H 30/20 - TIC spécialement adaptées au maniement ou au traitement d’images médicales pour le maniement d’images médicales, p. ex. DICOM, HL7 ou PACS
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
35.
MEASURING ELECTRICAL IMPEDANCE, CONTACT FORCE, AND TISSUE PROPERTIES
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Gerbat, Oran
Abrégé
A method of evaluating electrical impedance across a gap between a first catheter electrode and a second catheter electrode, both carried on a same catheter is provided. The method includes: receiving measurements of electrical voltages; and evaluating the electrical impedance across the gap based on the measurements of the electrical voltages. In some embodiments, the electrical voltages include: a first electrical voltage, which is a voltage measured between a reference electrode and the first catheter electrode measured under a first alternating electrical current having a first frequency and flowing through a conductor from an electrical source to the first catheter electrode, and a second electrical voltage, which is a voltage measured between the reference electrode and the second catheter electrode under the first alternating electrical current.
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Wilk, Michael
Ibragimov, Zalman
Abrégé
A method of performing conductivity-based imaging is disclosed comprising exciting at least one pair of electrodes according to an excitation scheme. The at least one pair of electrodes comprising a surface electrode located on the surface of an examined body and at least one in-body electrode located inside of the examined living body. Voltages developing on the surface electrodes and on the in-body electrodes during the excitation according to the excitation scheme arc measured, an inverse problem is solved to achieve a 3D conductivity map from the measured voltages, and a 3D image of the body tissues based on the 3D conductivity map is provided.
A61B 5/0536 - Imagerie par impédance, p. ex. par tomographie
A61B 5/0538 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps invasive, p. ex. en utilisant un cathéter
G16H 30/40 - TIC spécialement adaptées au maniement ou au traitement d’images médicales pour le traitement d’images médicales, p. ex. l’édition
G16H 50/20 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour le diagnostic assisté par ordinateur, p. ex. basé sur des systèmes experts médicaux
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Abrégé
Systems and method for remote field measurement-based mapping of anatomical structures (e.g., using impedance image of electrical fields) are described. In some embodiments, an image of features within a target region is produced by analysis of a spatial pattern of field measurements made in a measurement region remote from the target region features; for example, but not exclusively, by treating the spatial arrangement of field measurements in some portion of the measurement region as indicating the spatial (e.g., angular and/or distance) arrangement of features (e.g., anatomical structure of topography and/or tissue type) in the target region.
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Abrégé
Methods and devices using measurements of heart electrophysiological activity to guide structural heart disease interventions, and in some particular embodiments, implantation of heart valve annuloplasty devices. In some embodiments, measurements of heart electrophysiological activity are mapped into locations of a heart model defined by one or more additional measurement modalities. Locations to map electrophysiological data to, in some embodiments, are determined by non-electrophysiological measurements simultaneous with the electrophysiological data measurement which locate a probe—for example, measurements made by the probe itself, and/or measurements which themselves indicate positioning of the probe.
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Abrégé
Heart tissue electrical activity mapping used to guide the placement of devices to intervene in (treat) structural heart disease. In some embodiments, the intervention comprises placement of an implantable device, and/or positioning of a therapeutic device used to remove and/or remodel tissue. In some embodiments, electrical activity mapping is performed along with spatial mapping of a body cavity. In some embodiments, the intervention device position is compared to the measured positions of anatomical structures critical to heart electrical function to assess and/or prevent complications due to the device damaging heart electrical function.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Dichterman, Eli
Abrégé
A method of generating a combined image of a body part from a sequence of partially overlapping source images of the body part, each of the partially overlapping source images showing the body part at one of a plurality of different times, the source images being ordered in the sequence according to the different times, the method including defining a temporally coherent sequence of transformations, for registering the partially overlapping source images in the sequence with each other, registering the source images to each other using the defined temporally coherent sequence of transformations, to obtain co-registered images, and combining at least some of the co-registered images into a combined image. Related apparatus and methods are also described.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
G06T 3/40 - Changement d'échelle d’images complètes ou de parties d’image, p. ex. agrandissement ou rétrécissement
G06T 7/55 - Récupération de la profondeur ou de la forme à partir de plusieurs images
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Dichterman, Eli
Abrégé
Electrical field-guided positioning of a second device within a body cavity, using electrical field mapping information generated from electrical field measurements by electrodes of a first device. The first device, in some embodiments, is a catheter electrode probe, and the second device is an internally implantable and/or operated medical device. An exposed, electrically conductive portion of the second device is optionally configured to be used as an electrical field measuring electrode. A rule is applied to measurements made by this electrode to estimate its position within a body cavity. The rule is generated, in some embodiments, using measurements made by the first device.
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 5/053 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 17/12 - Instruments, dispositifs ou procédés chirurgicaux pour ligaturer ou comprimer par un autre moyen les parties tubulaires du corps, p. ex. les vaisseaux sanguins ou le cordon ombilical
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Abrégé
Electrical field imaging is performed using optionally any of a range of medical implements having a designated medical use (e.g., having a working portion for manipulating tissue); and furthermore supplied with at least one electrode that is used to transmit and/or receive an electrical field which interacts with the dielectric properties of tissue. In some embodiments, the at least one electrode is supplied as an add-on assembly, optionally as part of a kit including the medical implement.
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 5/053 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps
A61B 17/3211 - Scalpels chirurgicaux ou bistourisLeurs accessoires
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Madar, Eyal Henri
Gordon, Urit
Adler, Andrew
Abrégé
Methods and systems are provided for estimating velocity of blood, flowing along a blood vessel at a blood flow direction, based on measurements made using a medical implement that resided in a portion of the blood vessel and comprised a first electrode and a second electrode. One of the disclosed methods include: - accessing voltage measurements measured at the first and second electrodes when a bolus of a fluid went through the portion of the blood vessel at the blood flow direction; wherein the voltage measurements were made at the first and the second electrodes; estimating a time that took the bolus to go from the first electrode to the second electrode based on the accessed voltage measurements; and estimating the velocity of the blood based on the estimated time and a distance known to exist along the medical implement between the first and second electrodes.
A61B 5/053 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps
A61M 5/00 - Dispositifs pour faire pénétrer des agents dans le corps par introduction sous-cutanée, intravasculaire ou intramusculaireAccessoires à cet effet, p. ex. dispositifs de remplissage ou de nettoyage, appuis-bras
A61M 5/142 - Perfusion sous pression, p. ex. utilisant des pompes
47.
SYSTEM, METHOD AND ACCESORIES FOR DIELECTRIC-MAPPING
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Gerbat, Oran
Landau, Yehuda
Ben-Haim, Shlomo
Dichterman, Eli
Madar, Eyal, Henri
Kuybeda, Oleg
Abrégé
A method of computing a dielectric map is disclosed comprising exciting at least one pair of electrodes according to an excitation scheme, the at least one pair of electrodes comprising at least one pair of in-body electrodes (also referred herein below intra-body electrode) located inside of the examined living body, measuring and recording voltages developing on the in-body electrodes during the excitation according to the excitation scheme, solving an inverse problem to derive a 3D dielectric map from the recorded voltages and optionally providing a 3D image of the body tissues based on the 3D dielectric map. Methods are also disclosed that combine intrabody electrodes and surface electrodes secured to the body or use only surface electrodes. Embodiments encompass the use of constraints in deriving the 3D dielectric map and combining measurements made at different locations inside the body with moving intrabody electrodes. Disclosed methods are not limited to methods including exciting and measuring on the body but also extend to methods of processing data previously obtained to derive the 3D map.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Shmayahu, Yizhaq
Schwartz, Yitzhack
Abrégé
In some embodiments, data sensed and/or operational parameters used during a catheterization procedure are used in the motion frame-rate updating and visual rendering of a simulated organ geometry. The organ geometry is rendered as a virtual material using a software environment (preferably a graphical game engine) which applies simulated optical laws to material appearance parameters affecting the virtual material's visual appearance, as part of simulating a scene comprising the simulated organ geometry, and optionally also comprising simulated views of a catheter probe used for sensing and/or treatment. Optionally, measurements of and/or effects on tissue by sensing and/or commanded probe-tissue interactions are converted into material appearance changes, allowing dynamic visual simulation of intra-body states and/or events based on optionally non-visual input data. In some embodiments, physiology, motion physics, and/or other physical processes are simulated based on live inputs as part of associating material appearance properties to the simulated tissue's geometry.
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A61B 18/06 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci par chauffage produit par des réactions chimiques
A61B 18/24 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci par application de radiations électromagnétiques, p. ex. de micro-ondes en utilisant des lasers le faisceau étant dirigé le long, ou à l'intérieur d'un conduit flexible, p. ex. d'une fibre optiquePièces à main à cet effet avec un cathéter
A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 18/02 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci par refroidissement, p. ex. techniques cryogéniques
A61B 18/18 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci par application de radiations électromagnétiques, p. ex. de micro-ondes
49.
Reconstruction of an anatomical structure from intrabody measurements
A61B 5/107 - Mesure de dimensions corporelles, p. ex. la taille du corps entier ou de parties de celui-ci
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 5/02 - Détection, mesure ou enregistrement en vue de l'évaluation du système cardio-vasculaire, p. ex. mesure du pouls, du rythme cardiaque, de la pression sanguine ou du débit sanguin
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
G16H 40/63 - TIC spécialement adaptées à la gestion ou à l’administration de ressources ou d’établissements de santéTIC spécialement adaptées à la gestion ou au fonctionnement d’équipement ou de dispositifs médicaux pour le fonctionnement d’équipement ou de dispositifs médicaux pour le fonctionnement local
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Gluhovsky, Leonid
Schwartz, Yitzhack
Dichterman, Eli
Yarden, Yaara
Abrégé
Methods for creation and use (e.g., for navigation) of displays of flattened (e.g., curvature-straightened) 3-D reconstructions of tissue surfaces, optionally including reconstructions of the interior surfaces of hollow organs. In some embodiments, data comprising a 3-D representation of a tissue surface (for example an interior heart chamber surface) are subject to a geometrical transformation allowing the tissue surface to be presented substantially within a single view of a flattened reconstruction. In some embodiments, a catheter probe in use near the tissue surface is shown in positions that correspond to positions in 3-D space sufficiently to permit navigation; e.g., the probe is shown in flattened reconstruction views nearby view regions corresponding to regions it actually approaches. In some embodiments, automatic and/or easily triggered manual view switching between flattened reconstruction and source reconstruction views is implemented.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Schwartz, Yitzhack
Ibragimov, Zalman
Abrégé
Methods and systems for position determination of an intrabody probe, targets of an intrabody probe, and or actions to be performed using an intrabody probe are described. In some embodiments, an anatomy being navigated and/or mapped is described by a rule-based schema relating different anatomically identified structures to one another according to their ability to help identify and/or locate one another. Additionally, in some embodiments, data recorded from the intrabody probe is processed according to schema rules in order to provide anatomical identification of the anatomical region which the intrabody probe is sampling, optionally without performing detailed mapping, and/or prior to the availability of detailed mapping of anatomical geometry.
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 34/00 - Chirurgie assistée par ordinateurManipulateurs ou robots spécialement adaptés à l’utilisation en chirurgie
A61B 5/0538 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps invasive, p. ex. en utilisant un cathéter
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 18/02 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci par refroidissement, p. ex. techniques cryogéniques
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
54.
SYSTEM, METHOD AND ACCESSORIES FOR DIELECTRIC-BASED IMAGING
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Abrégé
A method of performing dielectric-based imaging is disclosed comprising exciting at least one pair of electrodes according to an excitation scheme, the at least one pair of electrodes comprising at least one pair of in-body electrodes (also referred herein below intra-body electrode) located inside of the examined living body, measuring and recording voltages developing on the in-body electrodes during the excitation according to the excitation scheme, solving an inverse problem to achieve a 3D dielectric map from the recorded voltages and optionally providing a 3D image of the body tissues based on the 3D dielectric map.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Schwartz, Yitzhack
Ibragimov, Zalman
Ben David, Yehonatan
Shmayahu, Yizhaq
Dichterman, Eli
Ben-Haim, Shlomo
Abrégé
A method of estimating a spatial relationship between at least a part of a patient esophagus and a heart chamber, including: measuring at least one electric parameter at one or more positions within the heart chamber to obtain measured values; and estimating the spatial relationship based on the measured values.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Schwartz, Yitzhack
Dichterman, Eli
Shmayahu, Yizhaq
Abrégé
There is provided a method of displaying a pre-acquired three dimensional (3D) image of at least a portion of an organ of a patient, the method comprising: receiving a plurality of electrical readings, each from a different electrode mounted on a catheter inside the portion of the organ of the patient, wherein the electrodes are mounted on the catheter at known distances from each other, transforming the plurality of electrical readings to a corresponding plurality of image points using a mapping transformation that transforms each electrical reading of the catheter from inside the portion of the organ of the patient to an anatomically corresponding image point in the 3D image based on the known distances, and displaying the 3D image with a marking of at least one of the plurality of image points.
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
A61B 5/0538 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps invasive, p. ex. en utilisant un cathéter
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Shmayahu, Yizhaq
Schwartz, Yitzhack
Rodriguez, Haim
Dichterman, Eli
Ibragimov, Zalman
Yarden, Yaara
Abrégé
Methods for estimating of the effectiveness of catheter ablation procedures to form lesions. Lesion effectiveness parameters are received, and effectiveness of a corresponding ablation (optionally planned, current, and/or already performed) is estimated. The estimating is based on use by computer circuitry of an estimator constructed based on observed associations between previously analyzed lesion effectiveness parameters, and observed lesion effectiveness. The estimator is used by application to the received lesion effectiveness parameters.
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Rodriguez, Haim
Ben-Haim, Shlomo
Shmayahu, Yizhaq
Schwartz, Yitzhack
Dichterman, Eli
Ibragimov, Zalman
Abrégé
Methods for estimating of the effectiveness of catheter ablation procedures to form lesions, and particular lesions which together form an ablation segment of an ablation line. Lesion effectiveness parameters are received, and effectiveness, optionally the joint effectiveness, of corresponding ablations (optionally planned, current, and/or already performed) is estimated. In some embodiments, estimating is based on use by computer circuitry of an estimator constructed based on observed associations between previously analyzed lesion effectiveness parameters, and observed lesion effectiveness. Additionally or alternatively, estimators may be constructed based on analytic functions. The estimator is used by application to the received lesion effectiveness parameters.
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 5/0538 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps invasive, p. ex. en utilisant un cathéter
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 34/00 - Chirurgie assistée par ordinateurManipulateurs ou robots spécialement adaptés à l’utilisation en chirurgie
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Dichterman, Eli
Abrégé
A method of estimating a location of a catheter in a heart chamber with respect to a model is provided. The model is generated based on readings received from the catheter. The method, in some embodiments, includes receiving readings from the catheter when the catheter is in the location to be estimated; and estimating the location based on the location readings received together with a completeness indicator, indicative of a completeness of the model. Examples of completeness indicators include elapsed time and variance in the model data.
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Rodriguez, Haim
Abrégé
There is provided a computer implemented method of reconstructing an image of a body cavity shape of a subject based on a plurality of location indications, indicating locations of at least one sensor disposed on an intrabody probe within the body cavity, the method comprising: receiving data indicative of the plurality of location indications, identifying based on the data at least a first group and a second group of location indications, and reconstructing the body cavity from the data, using a first reconstruction method for the first group of location indications, and a second reconstruction method for the second group of location indications.
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Abrégé
A tissue imaging method of imaging a target tissue including: providing a plurality of hardware electrodes; sending and receiving electrical signals using the plurality of hardware electrodes to produce measurement data; selecting a virtual electrode model, where each the virtual electrode includes two or more hardware electrodes; processing the measurement data using the virtual electrode model to provide a processed data output; and reconstructing an image using the processed data output.
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ibragimov, Zalman
Wilk, Michael
Abrégé
A method of performing conductivity-based imaging is disclosed comprising exciting at least one pair of electrodes according to an excitation scheme. The at least one pair of electrodes comprising a surface electrode located on the surface of an examined body and at least one in-body electrode located inside of the examined living body. Voltages developing on the surface electrodes and on the in-body electrodes during the excitation according to the excitation scheme are measured, an inverse problem is solved to achieve a 3D conductivity map from the measured voltages, and a 3D image of the body tissues based on the 3D conductivity map is provided.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Ibragimov, Zalman
Ben David, Yehonatan
Abrégé
e-e measurement sets and positions in the intrabody coordinate system. Systems and methods for generating and selecting such mappings are also described.
In some embodiments, a body cavity shape of a subject is reconstructed based on intrabody measurements of at least one property of an electromagnetic field by an intrabody probe (for example, a catheter probe) moving within a plurality of electrical fields intersecting the body cavity. In some embodiments, the electrical fields are generated at least in part from electrodes positioned in close proximity, for example, within 1 cm, of the body cavity. In some embodiments, the body cavity is a chamber of a heart (for example, a left atrium or left ventricle), and the electrodes used to generate the electrical field are positioned in the coronary sinus, a large vein occupying the groove between the left atrium and left ventricle. In some embodiments, known distances between measuring electrodes are used in guiding reconstruction, potentially overcoming difficulties of reconstruction from measurements of non-linear electrical fields.
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Abrégé
Electrical field imaging is performed using optionally any of a range of medical implements having a designated medical use ( e.g., having a working portion for manipulating tissue); and furthermore supplied with at least one electrode that is used to transmit and/or receive an electrical field which interacts with the dielectric properties of tissue. In some embodiments, the at least one electrode is supplied as an add-on assembly, optionally as part of a kit including the medical implement.
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 17/3211 - Scalpels chirurgicaux ou bistourisLeurs accessoires
A61B 5/042 - Electrodes spécialement adaptées à cet effet pour l'introduction dans le corps
A61B 1/313 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p. ex. endoscopesDispositions pour l'éclairage dans ces instruments pour l'introduction dans des incisions chirurgicales, p. ex. laparoscopes
A61B 5/05 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio
A61B 5/053 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
68.
MEASURING ELECTRICAL IMPEDANCE, CONTACT FORCE, AND TISSUE PROPERTIES
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Gerbat, Oran
Abrégé
A method of evaluating electrical impedance across a gap between a first catheter electrode and a second catheter electrode, both carried on a same catheter is provided. The method includes: receiving measurements of electrical voltages; and evaluating the electrical impedance across the gap based on the measurements of the electrical voltages. In some embodiments, the electrical voltages include: a first electrical voltage, which is a voltage measured between a reference electrode and the first catheter electrode measured under a first alternating electrical current having a first frequency and flowing through a conductor from an electrical source to the first catheter electrode, and a second electrical voltage, which is a voltage measured between the reference electrode and the second catheter electrode under the first alternating electrical current.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Dichterman, Eli
Schwartz, Yitzhack
Shmayahu, Yizhaq
Ben-Haim, Shlomo
Abrégé
In some embodiments, a body cavity shape of a subject is reconstructed based on intrabody measurements of voltages by an intrabody probe (for example, a catheter probe) moving within a plurality of differently-oriented electromagnetic fields crossing the body cavity. In some embodiments, the method uses distances between electrodes as a spatially calibrated ruler. Positions of measurements made with the intrabody probe in different positions are optionally related by using spatial coherence of the measured electromagnetic fields as a constraint. Optionally, reconstruction is performed without using a detailed reference (image or simulation) describing the body cavity shape. Optionally, reconstruction uses further information to refine and/or constrain the reconstruction; for example: images, simulations, additional electromagnetic fields, and/or measurements characteristic of body cavity landmarks. Optionally, reconstruction accounts for time-dependent cavity shape changes, for example, phasic changes (e.g., heartbeat and/or respiration), and/or changes in states such as subject hydration, edema, and/or heart rate.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Gluhovsky, Leonid
Schwartz, Yitzhack
Dichterman, Eli
Ben-Haim, Shlomo
Yarden, Yaara
Abrégé
Methods for creation and use (e.g., for navigation) of displays of flattened (e.g., curvature-straightened) 3-D reconstructions of tissue surfaces, optionally including reconstructions of the interior surfaces of hollow organs. In some embodiments, data comprising a 3-D representation of a tissue surface (for example an interior heart chamber surface) are subject to a geometrical transformation allowing the tissue surface to be presented substantially within a single view of a flattened reconstruction. In some embodiments, a catheter probe in use near the tissue surface is shown in positions that correspond to positions in 3-D space sufficiently to permit navigation; e.g., the probe is shown in flattened reconstruction views nearby view regions corresponding to regions it actually approaches. In some embodiments, automatic and/or easily triggered manual view switching between flattened reconstruction and source reconstruction views is implemented.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Shmayahu, Yizhaq
Schwartz, Yitzhack
Abrégé
Disclosed herein is a method of graphically presenting an indicating marker over a 3-D model of a tissue surface during a catheterization procedure, comprising determining a region over the 3-D model, deforming the indicating marker to congruently match a shape defined by the 3-D model across the region at a plurality of positions; and rendering the 3-D model into an image including the deformed indicating marker by generating an image of the 3-D model covered by said deformed indicating marker.
G06T 19/20 - Édition d'images tridimensionnelles [3D], p. ex. modification de formes ou de couleurs, alignement d'objets ou positionnements de parties
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A61B 5/107 - Mesure de dimensions corporelles, p. ex. la taille du corps entier ou de parties de celui-ci
G06T 17/00 - Modélisation tridimensionnelle [3D] pour infographie
72.
Real-time display of treatment-related tissue changes using virtual material
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Shmayahu, Yizhaq
Schwartz, Yitzhack
Abrégé
In some embodiments, data sensed and/or operational parameters used during a catheterization procedure are used in the motion frame-rate updating and visual rendering of a simulated organ geometry. The organ geometry is rendered as a virtual material using a software environment (preferably a graphical game engine) which applies simulated optical laws to material appearance parameters affecting the virtual material's visual appearance, as part of simulating a scene comprising the simulated organ geometry, and optionally also comprising simulated views of a catheter probe used for sensing and/or treatment. Optionally, measurements of and/or effects on tissue by sensing and/or commanded probe-tissue interactions are converted into material appearance changes, allowing dynamic visual simulation of intra-body states and/or events based on optionally non-visual input data. In some embodiments, physiology, motion physics, and/or other physical processes are simulated based on live inputs as part of associating material appearance properties to the simulated tissue's geometry.
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A61B 18/06 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci par chauffage produit par des réactions chimiques
A61B 18/24 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci par application de radiations électromagnétiques, p. ex. de micro-ondes en utilisant des lasers le faisceau étant dirigé le long, ou à l'intérieur d'un conduit flexible, p. ex. d'une fibre optiquePièces à main à cet effet avec un cathéter
A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 18/02 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci par refroidissement, p. ex. techniques cryogéniques
A61B 18/18 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci par application de radiations électromagnétiques, p. ex. de micro-ondes
73.
Real-time display of tissue deformation by interactions with an intra-body probe
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Shmayahu, Yizhaq
Schwartz, Yitzhack
Abrégé
In some embodiments, data sensed and/or operational parameters used during a catheterization procedure are used in the motion frame-rate updating and visual rendering of a simulated organ geometry. In some embodiments, measurements of and/or effects on tissue by sensed and/or commanded probe-tissue interactions are converted into adjustments to the simulated organ geometry, allowing dynamic visual simulation of intra-body states and/or events based on optionally partial and/or non-visual input data. Adjustments to geometry are optionally to 3-D positions of simulated data and/or to simulated surface properties affecting geometrical appearances (e.g., normal mapping). Optionally, the organ geometry is rendered as a virtual material using a software environment (preferably a graphical game engine) which applies simulated optical laws to material appearance parameters affecting the virtual material's visual appearance. Optionally, physiology, motion physics, and/or other physical processes are simulated based on live inputs, as part of assigning geometrical adjustments to the simulated tissue.
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
74.
Display screen or portion thereof with graphical user interface
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Schwartz, Yitzhack
Dichterman, Eli
Ibragimov, Zalman
Ben David, Yehonatan
Abrégé
Registration of catheter-sensed intrabody voltage field measurements obtained along one or more tracks of catheter advance of withdrawal is made, in some embodiments, to reference voltage field measurements lying along predetermined tracks. Tracks optionally comprise the course of a blood vessel such as the superior or inferior vena cava, a path defined and/or limited by encounters with a wall of a heart chamber and/or apertures thereof, and/or another track of catheter motion. In some embodiments, transform parameters are propagated to regions away from the track, potentially allowing more rapid acquisition of targets.
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Dichterman, Eli
Abrégé
A method of generating a combined image of a body part from a sequence of partially overlapping source images of the body part, each of the partially overlapping source images showing the body part at one of a plurality of different times, the source images being ordered in the sequence according to the different times, the method including defining a temporally coherent sequence of transformations, for registering the partially overlapping source images in the sequence with each other, registering the source images to each other using the defined temporally coherent sequence of transformations, to obtain co-registered images, and combining at least some of the co-registered images into a combined image. Related apparatus and methods are also described.
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
G06T 17/20 - Description filaire, p. ex. polygonalisation ou tessellation
77.
Systems and methods for tracking an intrabody catheter
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Schwartz, Yitzhack
Ben-Haim, Shlomo
Dichterman, Eli
Abrégé
There is provided a computerized method of tracking a position of an intra-body catheter, comprising: physically tracking coordinates of the position of a distal portion of a physical catheter within the physical body portion of the patient according to physically applied plurality of electrical fields within the body portion and measurements of the plurality of electrical fields performed by a plurality of physical electrodes at a distal portion of the physical catheter; registering the physically tracked coordinates with simulated coordinates generated according to a simulation of a simulated catheter within a simulation of the body of the patient, to identify differences between physically tracked location coordinates and the simulation coordinates; correcting the physically tracked location coordinates according to the registered simulation coordinates; and providing the corrected physically tracked location coordinates for presentation.
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 5/0538 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps invasive, p. ex. en utilisant un cathéter
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
G16H 10/60 - TIC spécialement adaptées au maniement ou au traitement des données médicales ou de soins de santé relatives aux patients pour des données spécifiques de patients, p. ex. pour des dossiers électroniques de patients
G16H 30/20 - TIC spécialement adaptées au maniement ou au traitement d’images médicales pour le maniement d’images médicales, p. ex. DICOM, HL7 ou PACS
A61B 5/287 - Supports pour électrodes multiples, p. ex. cathéters à électrode pour des études électrophysiologiques [EEP]
A61B 5/339 - Affichages spécialement adaptés à cet effet
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
78.
SYSTEMS AND METHODS FOR AUTOMATED GUIDANCE OF TREATMENT OF AN ORGAN
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ibragimov, Zalman
Schwartz, Yitzhack
Shmayahu, Yizhaq
Abrégé
There is provided a computer implemented method of providing a client terminal with instructions for treatment of at least a portion of an organ of a patient, the method comprising: receiving electrical readings obtained by electrodes located within the portion of the organ, identifying by at least one classifier instructions for treatment of a region in the portion of the organ identified as an intervention target region, wherein the classifier identifies the instructions for treatment of the region based on electrical readings or a transformation thereof previously associated with treatment of intervention target regions in the portion of the organ of other patients, and marking on an image of the portion of the organ presented on a display, the instruction for treatment of the region identified by the classifier as an intervention target region.
G16H 50/20 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour le diagnostic assisté par ordinateur, p. ex. basé sur des systèmes experts médicaux
79.
ELECTROPHYSIOLOGY PROCEDURE WITHOUT IONIZING RADIATION IMAGING
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Schwartz, Yitzhack
Abrégé
Methods and systems for position determination of an intrabody probe, targets of an intrabody probe, and or actions to be performed using an intrabody probe are described. In some embodiments, an anatomy being navigated and/or mapped is described by a rule-based schema relating different anatomically identified structures to one another according to their ability to help identify and/or locate one another. Additionally, in some embodiments, data recorded from the intrabody probe is processed according to schema rules in order to provide anatomical identification of the anatomical region which the intrabody probe is measuring, optionally without performing detailed mapping, and/or prior to the availability of detailed mapping of anatomical geometry.
A61B 5/05 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio
A61B 5/048 - Détection de la répartition de fréquence dans les signaux
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Gluhovsky, Leonid
Schwartz, Yitzhack
Dichterman, Eli
Yarden, Yaara
Abrégé
Methods for creation and use (e.g., for navigation) of displays of flattened (e.g., curvature-straightened) 3-D reconstructions of tissue surfaces, optionally including reconstructions of the interior surfaces of hollow organs. In some embodiments, data comprising a 3-D representation of a tissue surface (for example an interior heart chamber surface) are subject to a geometrical transformation allowing the tissue surface to be presented substantially within a single view of a flattened reconstruction. In some embodiments, a catheter probe in use near the tissue surface is shown in positions that correspond to positions in 3-D space sufficiently to permit navigation; e.g., the probe is shown in flattened reconstruction views nearby view regions corresponding to regions it actually approaches. In some embodiments, automatic and/or easily triggered manual view switching between flattened reconstruction and source reconstruction views is implemented.
A61B 5/042 - Electrodes spécialement adaptées à cet effet pour l'introduction dans le corps
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 5/107 - Mesure de dimensions corporelles, p. ex. la taille du corps entier ou de parties de celui-ci
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 5/053 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps
A61B 1/273 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p. ex. endoscopesDispositions pour l'éclairage dans ces instruments pour l'appareil digestif supérieur, p. ex. œsophagoscopes, gastroscopes
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
84.
RECONSTRUCTION OF AN ANATOMICAL STRUCTURE FROM INTRABODY MEASUREMENTS
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Dichterman, Eli
Ben-Haim, Shlomo
Abrégé
A method of reconstructing a shape of a volume of a part of a subject based on intrabody measurements of a plurality of crossing electromagnetic fields established within the volume, the method including: receiving, by computer circuitry, measurements of the crossing electromagnetic fields carried out using at least one sensor carried on an intrabody probe, the measuring being carried out with the probe at multiple locations in the volume, to provide a set of measurement samples, each taken at a location; generating, by computer circuitry and based on said measurement samples, a transformation that transforms measurement samples to geometric positions; transforming, using said generated transformation fewer than half of the measurements in said set of measurement samples into a set of geometric positions; and reconstructing the shape of said volume from said set of geometric positions.
A61B 5/042 - Electrodes spécialement adaptées à cet effet pour l'introduction dans le corps
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 5/107 - Mesure de dimensions corporelles, p. ex. la taille du corps entier ou de parties de celui-ci
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 5/053 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps
A61B 1/273 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p. ex. endoscopesDispositions pour l'éclairage dans ces instruments pour l'appareil digestif supérieur, p. ex. œsophagoscopes, gastroscopes
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
85.
PROPERTY- AND POSITION-BASED CATHETER PROBE TARGET IDENTIFICATION
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Schwartz, Yitzhack
Ibragimov, Zalman
Abrégé
Methods and systems for position determination of an intrabody probe, targets of an intrabody probe, and or actions to be performed using an intrabody probe are described. In some embodiments, an anatomy being navigated and/or mapped is described by a rule-based schema relating different anatomically identified structures to one another according to their ability to help identify and/or locate one another. Additionally, in some embodiments, data recorded from the intrabody probe is processed according to schema rules in order to provide anatomical identification of the anatomical region which the intrabody probe is sampling, optionally without performing detailed mapping, and/or prior to the availability of detailed mapping of anatomical geometry.
A61B 5/053 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 18/02 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci par refroidissement, p. ex. techniques cryogéniques
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Schwartz, Yitzhack
Ibragimov, Zalman
Ben David, Yehonatan
Dichterman, Eli
Abrégé
Systems and methods are described for planning of catheter ablation procedures, and in particular for planning of the placement of lesions and/or parameters used in ablation. In some embodiments, planning is based on thermal and/or dielectric simulation of lesions, individualized to the anatomy of the particular patient. Optionally, a plan comprises planning of a path along which an ablation lesion is to be formed, the ablation lesion optionally comprising one or more sub-lesions. The plan is optionally optimized for one or more criteria including, for example: minimization of path length, minimization of sub-lesion number, simplification of catheter maneuvering, avoidance of collateral damage to non-target tissue, access to the target dependent on anatomy shape and/or catheter mechanics, and/or features of the target anatomy such as tissue wall thickness and/or fiber direction.
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
G06F 30/00 - Conception assistée par ordinateur [CAO]
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
G16H 10/60 - TIC spécialement adaptées au maniement ou au traitement des données médicales ou de soins de santé relatives aux patients pour des données spécifiques de patients, p. ex. pour des dossiers électroniques de patients
G16H 30/20 - TIC spécialement adaptées au maniement ou au traitement d’images médicales pour le maniement d’images médicales, p. ex. DICOM, HL7 ou PACS
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
H02K 7/18 - Association structurelle de génératrices électriques à des moteurs mécaniques d'entraînement, p. ex. à des turbines
G06F 17/18 - Opérations mathématiques complexes pour l'évaluation de données statistiques
G01H 17/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores non prévue dans les autres groupes de la présente sous-classe
A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
87.
Fiducial marking for image-electromagnetic field registration
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Schwartz, Yitzhack
Ibragimov, Zalman
Ben David, Yehonatan
Abrégé
Methods and systems for placement of and/or placement planning for body surface electrodes are described. In some embodiments, body surface electrodes are used to generate intra-body electromagnetic fields sensed by intra-body probes for applications such as electrical field-guided catheter navigation and/or dielectric property-based tissue lesion assessment. Sizes and/or positions of body surface electrodes are optionally selected based on the results of electromagnetic simulations. Criteria for selection include, for example, potential gradient uniformity and/or intensity. In some embodiments, body surface electrode placement is performed under automated optical guidance. For example, images are obtained and used to indicate and/or assess body surface electrode placement. Optionally, indication is with respect to fiducial marks placed on the body, to which an electromagnetic simulation is spatially registered.
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
G16H 10/60 - TIC spécialement adaptées au maniement ou au traitement des données médicales ou de soins de santé relatives aux patients pour des données spécifiques de patients, p. ex. pour des dossiers électroniques de patients
G16H 30/20 - TIC spécialement adaptées au maniement ou au traitement d’images médicales pour le maniement d’images médicales, p. ex. DICOM, HL7 ou PACS
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
88.
INTRABODY PROBE NAVIGATION BY ELECTRICAL SELF-SENSING
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Ibragimov, Zalman
Ben David, Yehonatan
Abrégé
Methods and systems for position determination are described for using an intrabody probe having a plurality of electrodes to generate a plurality of different electrical fields, and to also measure, using the plurality of electrodes, a measurement set (a Ve-e measurement set) comprising a plurality of measurements of the plurality of different electrical fields while the probe remains in one position. From the Ve-e measurement set, spatial position coordinates for the intrabody probe are estimated within an intrabody coordinate system, using an established mapping between previously observed Ve-e measurement sets and positions in the intrabody coordinate system. Systems and methods for generating and selecting such mappings are also described.
A61B 5/042 - Electrodes spécialement adaptées à cet effet pour l'introduction dans le corps
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 5/107 - Mesure de dimensions corporelles, p. ex. la taille du corps entier ou de parties de celui-ci
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 5/053 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps
A61B 1/273 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p. ex. endoscopesDispositions pour l'éclairage dans ces instruments pour l'appareil digestif supérieur, p. ex. œsophagoscopes, gastroscopes
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Shmayahu, Yizhaq
Schwartz, Yitzhack
Dichterman, Eli
Ibragimov, Zalman
Ben-Haim, Shlomo
Ben David, Yehonatan
Abrégé
In some embodiments, a body cavity shape of a subject is reconstructed based on intrabody measurements of at least one property of an electromagnetic field by an intrabody probe (for example, a catheter probe) moving within a plurality of electrical fields intersecting the body cavity. In some embodiments, the electrical fields are generated at least in part from electrodes positioned in close proximity, for example, within 1 cm, of the body cavity. In some embodiments, the body cavity is a chamber of a heart (for example, a left atrium or left ventricle), and the electrodes used to generate the electrical field are positioned in the coronary sinus, a large vein occupying the groove between the left atrium and left ventricle. In some embodiments, known distances between measuring electrodes are used in guiding reconstruction, potentially overcoming difficulties of reconstruction from measurements of non-linear electrical fields.
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 5/042 - Electrodes spécialement adaptées à cet effet pour l'introduction dans le corps
90.
SYSTEMS AND METHODS FOR RECONSTRUCTION OF INTRA-BODY ELECTRICAL READINGS TO ANATOMICAL STRUCTURE
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Dichterman, Eli
Schwartz, Yitzhack
Shmayahu, Yizhaq
Ben-Haim, Shlomo
Abrégé
In some embodiments, a body cavity shape of a subject is reconstructed based on intrabody measurements of voltages by an intrabody probe (for example, a catheter probe) moving within a plurality of differently-oriented electromagnetic fields crossing the body cavity. In some embodiments, the method uses distances between electrodes as a spatially calibrated ruler. Positions of measurements made with the intrabody probe in different positions are optionally related by using spatial coherence of the measured electromagnetic fields as a constraint. Optionally, reconstruction is performed without using a detailed reference (image or simulation) describing the body cavity shape. Optionally, reconstruction uses further information to refine and/or constrain the reconstruction; for example: images, simulations, additional electromagnetic fields, and/or measurements characteristic of body cavity landmarks. Optionally, reconstruction accounts for time-dependent cavity shape changes, for example, phasic changes (e.g., heartbeat and/or respiration), and/or changes in states such as subject hydration, edema, and/or heart rate.
A61B 5/042 - Electrodes spécialement adaptées à cet effet pour l'introduction dans le corps
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 5/107 - Mesure de dimensions corporelles, p. ex. la taille du corps entier ou de parties de celui-ci
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 5/053 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps
A61B 1/273 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p. ex. endoscopesDispositions pour l'éclairage dans ces instruments pour l'appareil digestif supérieur, p. ex. œsophagoscopes, gastroscopes
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Rodriguez, Haim
Ben-Haim, Shlomo
Shmayahu, Yizhaq
Schwartz, Yitzhack
Dichterman, Eli
Ibragimov, Zalman
Abrégé
Methods for estimating of the effectiveness of catheter ablation procedures to form lesions, and particular lesions which together form an ablation segment of an ablation line. Lesion effectiveness parameters are received, and effectiveness, optionally the joint effectiveness, of corresponding ablations (optionally planned, current, and/or already performed) is estimated. In some embodiments, estimating is based on use by computer circuitry of an estimator constructed based on observed associations between previously analyzed lesion effectiveness parameters, and observed lesion effectiveness. Additionally or alternatively, estimators may be constructed based on analytic functions. The estimator is used by application to the received lesion effectiveness parameters.
A61B 18/12 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci par chauffage en faisant passer des courants à travers les tissus à chauffer, p. ex. des courants à haute fréquence
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Gluhovsky, Leonid
Schwartz, Yitzhack
Dichterman, Eli
Ben-Haim, Shlomo
Yarden, Yaara
Abrégé
Methods for creation and use (e.g., for navigation) of displays of flattened (e.g., curvature-straightened) 3-D reconstructions of tissue surfaces, optionally including reconstructions of the interior surfaces of hollow organs. In some embodiments, data comprising a 3-D representation of a tissue surface (for example an interior heart chamber surface) are subject to a geometrical transformation allowing the tissue surface to be presented substantially within a single view of a flattened reconstruction. In some embodiments, a catheter probe in use near the tissue surface is shown in positions that correspond to positions in 3-D space sufficiently to permit navigation; e.g., the probe is shown in flattened reconstruction views nearby view regions corresponding to regions it actually approaches. In some embodiments, automatic and/or easily triggered manual view switching between flattened reconstruction and source reconstruction views is implemented.
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Schwartz, Yitzhack
Ben-Haim, Shlomo
Dichterman, Eli
Abrégé
There is provided a computerized method of tracking a position of an intra-body catheter, comprising: physically tracking coordinates of the position of a distal portion of a physical catheter within the physical body portion of the patient according to physically applied plurality of electrical fields within the body portion and measurements of the plurality of electrical fields performed by a plurality of physical electrodes at a distal portion of the physical catheter; registering the physically tracked coordinates with simulated coordinates generated according to a simulation of a simulated catheter within a simulation of the body of the patient, to identify differences between physically tracked location coordinates and the simulation coordinates; correcting the physically tracked location coordinates according to the registered simulation coordinates; and providing the corrected physically tracked location coordinates for presentation.
A61B 5/044 - Dispositifs de visualisation spécialement adaptés à cet effet
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 5/042 - Electrodes spécialement adaptées à cet effet pour l'introduction dans le corps
A61B 5/053 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
94.
Display screen portion with icon for an atrial orientation marker
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Shmayahu, Yizhaq
Schwartz, Yitzhack
Abrégé
Disclosed herein is a method of graphically presenting an indicating marker over a 3-D model of a tissue surface during a catheterization procedure, comprising determining a region over the 3-D model, deforming the indicating marker to congruently match a shape defined by the 3-D model across the region at a plurality of positions; and rendering the 3-D model into an image including the deformed indicating marker by generating an image of the 3-D model covered by said deformed indicating marker.
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 34/00 - Chirurgie assistée par ordinateurManipulateurs ou robots spécialement adaptés à l’utilisation en chirurgie
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
96.
ESOPHAGUS POSITION DETECTION BY ELECTRICAL MAPPING
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Schwartz, Yitzhack
Ibragimov, Zalman
Ben David, Yehonatan
Shmayahu, Yizhaq
Dichterman, Eli
Ben-Haim, Shlomo
Abrégé
A method of estimating a spatial relationship between at least a part of a patient esophagus and a heart chamber, including :measuring at least one electric parameter at one or more positions within the heart chamber to obtain measured values; and estimating the spatial relationship based on the measured values.
A61B 5/042 - Electrodes spécialement adaptées à cet effet pour l'introduction dans le corps
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 5/107 - Mesure de dimensions corporelles, p. ex. la taille du corps entier ou de parties de celui-ci
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 1/273 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p. ex. endoscopesDispositions pour l'éclairage dans ces instruments pour l'appareil digestif supérieur, p. ex. œsophagoscopes, gastroscopes
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Ben-Haim, Shlomo
Shmayahu, Yizhaq
Schwartz, Yitzhack
Rodriguez, Haim
Dichterman, Eli
Ibragimov, Zalman
Yarden, Yaara
Abrégé
Methods for estimating of the effectiveness of catheter ablation procedures to form lesions. Lesion effectiveness parameters are received, and effectiveness of a corresponding ablation (optionally planned, current, and/or already performed) is estimated. The estimating is based on use by computer circuitry of an estimator constructed based on observed associations between previously analyzed lesion effectiveness parameters, and observed lesion effectiveness. The estimator is used by application to the received lesion effectiveness parameters.
A61B 18/12 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci par chauffage en faisant passer des courants à travers les tissus à chauffer, p. ex. des courants à haute fréquence
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
98.
REAL-TIME DISPLAY OF TISSUE DEFORMATION BY INTERACTIONS WITH AN INTRA-BODY PROBE
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Shmayahu, Yizhaq
Schwartz, Yitzhack
Abrégé
In some embodiments, data sensed and/or operational parameters used during a catheterization procedure are used in the motion frame-rate updating and visual rendering of a simulated organ geometry. In some embodiments, measurements of and/or effects on tissue by sensed and/or commanded probe-tissue interactions are converted into adjustments to the simulated organ geometry, allowing dynamic visual simulation of intra-body states and/or events based on optionally partial and/or non- visual input data. Adjustments to geometry are optionally to 3-D positions of simulated data and/or to simulated surface properties affecting geometrical appearances (e.g., normal mapping). Optionally, the organ geometry is rendered as a virtual material using a software environment (preferably a graphical game engine) which applies simulated optical laws to material appearance parameters affecting the virtual material's visual appearance. Optionally, physiology, motion physics, and/or other physical processes are simulated based on live inputs, as part of assigning geometrical adjustments to the simulated tissue.
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 34/00 - Chirurgie assistée par ordinateurManipulateurs ou robots spécialement adaptés à l’utilisation en chirurgie
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
99.
REAL-TIME DISPLAY OF TREATMENT-RELATED TISSUE CHANGES USING VIRTUAL MATERIAL
NAVIX INTERNATIONAL LIMITED (Îles Vierges (britanniques))
Inventeur(s)
Shmayahu, Yizhaq
Schwartz, Yitzhack
Abrégé
In some embodiments, data sensed and/or operational parameters used during a catheterization procedure are used in the motion frame-rate updating and visual rendering of a simulated organ geometry. The organ geometry is rendered as a virtual material using a software environment (preferably a graphical game engine) which applies simulated optical laws to material appearance parameters affecting the virtual material's visual appearance, as part of simulating a scene comprising the simulated organ geometry, and optionally also comprising simulated views of a catheter probe used for sensing and/or treatment. Optionally, measurements of and/or effects on tissue by sensing and/or commanded probe-tissue interactions are converted into material appearance changes, allowing dynamic visual simulation of intra-body states and/or events based on optionally non- visual input data. In some embodiments, physiology, motion physics, and/or other physical processes are simulated based on live inputs as part of associating material appearance properties to the simulated tissue's geometry.
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 34/00 - Chirurgie assistée par ordinateurManipulateurs ou robots spécialement adaptés à l’utilisation en chirurgie
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
Navix International Limited (Îles Vierges (britanniques))
Inventeur(s)
Schwartz, Yitzhack
Shmayahu, Yizhaq
Dichterman, Eli
Abrégé
Devices and methods for tissue lesion assessment and/or creation based on dielectric properties are disclosed. In some embodiments, one or more probing frequencies are delivered via electrodes including an electrode in proximity to a tissue (for example, myocardial tissue). Measured dielectric properties (such as impedance properties), optionally together with other known and/or estimated tissue characteristics, are used to determine the lesion state of the tissue. In some embodiments, a developing lesion state is monitored during treatment formation of a lesion (for example, ablation of heart tissue to alter electrical transmission characteristics).
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
G16H 10/60 - TIC spécialement adaptées au maniement ou au traitement des données médicales ou de soins de santé relatives aux patients pour des données spécifiques de patients, p. ex. pour des dossiers électroniques de patients
G16H 30/20 - TIC spécialement adaptées au maniement ou au traitement d’images médicales pour le maniement d’images médicales, p. ex. DICOM, HL7 ou PACS
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux