Produits et services

Medical device, namely, a cardiac ablation generator for the delivery of pulsed field ablation through compatible catheters.

Produits et services

Medical device, namely, a cardiac ablation generator for the delivery of pulsed field ablation through compatible catheters.

Produits et services

(1) Medical device, namely, a cardiac ablation generator for the delivery of pulsed field ablation through compatible catheters.

Abrégé

A system and method for assessing contact between a medical device and tissue may comprise an electronic control unit (ECU) configured to be coupled to a medical device, the medical device comprising a first electrode and a second electrode. The ECU may be further configured to select the first electrode as an electrical source and the second electrode as an electrical sink, to cause an electrical signal to be driven between the source and sink, to detect respective electric potentials on the first electrode and the second electrode while the electrical signal is driven, and to determine an impedance respective of one of the first electrode and the second electrode according to both of the respective electric potentials.

Classes IPC  ?

• A61B 5/24 - Détection, mesure ou enregistrement de signaux bioélectriques ou biomagnétiques du corps ou de parties de celui-ci
• 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 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 18/14 - Sondes ou électrodes à cet effet
• 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

Abrégé

Cardiac ablation devices and systems are disclosed. A system in accordance with the present disclosure comprises an ablation generator, an electronic control unit (ECU), a control system, and a catheter. The catheter comprises at least one ablation electrode, a catheter shaft including a fluid lumen, and a plurality of thermal sensors. The ECU is configured to receive temperature measurement data from the plurality of thermal sensors, determine a power rate delivery value based on the temperature measurement data, and output the power rate delivery value. The control system is configured to receive the power rate delivery value and control energy delivery of the ablation generator based at least in part on the power rate delivery value.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes 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 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 18/06 - 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 18/08 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci par chauffage à l'aide de sondes chauffées électriquement
• 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
• 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
• A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre

Abrégé

Catheter systems include direction-sensitive, multi-polar tip electrode assemblies for electroporation-mediated therapy, electroporation-induced primary necrosis therapy and electric field-induced apoptosis therapy, including configurations for producing narrow, linear lesions as well as distributed, wide area lesions. A monitoring system for electroporation therapy includes a mechanism for delivering electrochromic dyes to a tissue site as well as a fiber optic arrangement to optically monitor the progress of the therapy as well as to confirm success post-therapy. A fiber optic temperature sensing electrode catheter includes a tip electrode having a cavity whose inner surface is impregnated or coated with thermochromic/thermotropic material that changes color with changes in temperature. An optic fiber/detector arrangement monitors the thermochromic or thermotropic materials, acquiring a light signal and generating an output signal indicative of the spectrum of the light signal. An analyzer determines an electrode temperature based on the detector output and predetermined spectrum versus temperature calibration data.

Classes IPC  ?

• A61N 1/32 - Application de courants électriques par électrodes de contact courants alternatifs ou intermittents
• 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 18/14 - Sondes ou électrodes à cet effet

Abrégé

Catheter systems include direction-sensitive, multi-polar tip electrode assemblies for electroporation-mediated therapy, electroporation-induced primary necrosis therapy and electric field-induced apoptosis therapy, including configurations for producing narrow, linear lesions as well as distributed, wide area lesions. A monitoring system for electroporation therapy includes a mechanism for delivering electrochromic dyes to a tissue site as well as a fiber optic arrangement to optically monitor the progress of the therapy as well as to confirm success post-therapy. A fiber optic temperature sensing electrode catheter includes a tip electrode having a cavity whose inner surface is impregnated or coated with thermochromic/thermotropic material that changes color with changes in temperature. An optic fiber/detector arrangement monitors the thermochromic or thermotropic materials, acquiring a light signal and generating an output signal indicative of the spectrum of the light signal. An analyzer determines an electrode temperature based on the detector output and predetermined spectrum versus temperature calibration data.

Classes IPC  ?

• A61N 1/32 - Application de courants électriques par électrodes de contact courants alternatifs ou intermittents
• 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 18/14 - Sondes ou électrodes à cet effet

Abrégé

A catheter and patch electrode system is provided for use with an ablation generator, having a 4-wire interface for improved impedance measurement. The 4-wire interface includes a pair of source connectors across which an excitation signal is produced and a pair of sense connector wires across which the impedance is measured. The system further includes a cable that connects the generator to a catheter that includes a shaft with an ablation tip electrode disposed at a distal end. The impedance sensor circuit produces an excitation signal across the source connectors, which is then carried to the catheter by the cable, then to the tip electrode, travels through the complex load (tissue volume), and returns to the generator via a patch electrode. The impedance is measured by observing the voltage drop across the sense connectors caused by the excitation signal.

Classes IPC  ?

• 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 18/14 - Sondes ou électrodes à cet effet
• A61B 18/16 - Électrodes neutres ou passives pour mise à la terre

Abrégé

The invention relates to ablation catheter electrodes that solve in part the problem of tissue charring during radiofrequency ablation. The electrode assemblies of the invention include passageways that lead from the inner lumen of the assemblies to the surface of the assemblies, wherein the passageways have a smooth conjunction with the outer surface. These smooth conjunctions comprise rounded edges or are chamfered. In the case of rounded edges, the rounded edges can have fixed radii of about 0.002″ to about 0.008″.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes 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

Produits et services

Medical devices, namely, catheters and catheter interface modules.

Produits et services

(1) Medical devices, namely, catheters and catheter interface modules.

Produits et services

Medical devices, namely, catheters with embedded operating system software.

Abrégé

A system and method for assessing contact between a medical device and tissue may comprise an electronic control unit (ECU) configured to be coupled to a medical device, the medical device comprising a first electrode and a second electrode. The ECU may be further configured to select the first electrode as an electrical source and the second electrode as an electrical sink, to cause an electrical signal to be driven between the source and sink, to detect respective electric potentials on the first electrode and the second electrode while the electrical signal is driven, and to determine an impedance respective of one of the first electrode and the second electrode according to both of the respective electric potentials.

Classes IPC  ?

• 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 5/0538 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps invasive, p. ex. en utilisant un cathéter
• A61B 5/24 - Détection, mesure ou enregistrement de signaux bioélectriques ou biomagnétiques du corps ou de parties de celui-ci
• A61B 18/14 - Sondes ou électrodes à cet effet
• 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

Abrégé

Ablation electrode assemblies include an inner core member and an outer shell surrounding the inner core member. The inner core member and the outer shell define a space or separation region therebetween. The inner core member is constructed from a thermally insulative material having a reduced thermal conductivity. In an embodiment, the space is a sealed or evacuated region. In other embodiments, irrigation fluid flows within the space. The ablation electrode assembly further includes at least one thermal sensor in some embodiments. Methods for providing irrigation fluid during cardiac ablation of targeted tissue are disclosed that include calculating the energy delivered to irrigation fluid as it flows within the ablation electrode assembly through temperature measurement of the irrigation fluid. Pulsatile flow of irrigation fluid can be utilized in some embodiments of the disclosure.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes à cet effet

Abrégé

A medical device is provided comprising a shaft comprising a first segment and a second segment. The first segment is configured to buckle upon application of a first critical force. The second segment includes an outer surface and an inner surface and is configured to buckle upon application of a second critical force. The second critical force is lower than the first critical force. The medical device further comprises a coil disposed radially inwardly of the inner surface of the second segment.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes à cet effet
• A61M 25/00 - CathétersSondes creuses
• A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
• A61M 25/09 - Fils de guidage

Abrégé

A system and method for assessing effective delivery of ablation therapy to a tissue in a body is provided. A three-dimensional anatomical map of the tissue is generated and displayed with the map defining a corresponding volume. An index is generated corresponding to a location within the volume with the index indicative of a state of ablation therapy at the location. The index may be derived from one or more factors such as the duration an ablation electrode is present at the location, the amount of energy provided, the degree of electrical coupling between an ablation electrode and the tissue at the location and temperature. A visual characteristic (e.g., color intensity) of a portion of the anatomical map corresponding to the location is then altered responsive to the index.

Classes IPC  ?

• 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 5/00 - Mesure servant à établir un diagnostic Identification des individus
• A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
• A61B 18/14 - Sondes ou électrodes à cet effet
• 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 5/01 - Mesure de la température de parties du corps
• 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 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 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
• A61N 7/02 - Hyperthermie localisée par ultrasons

Produits et services

Remote training services in the operation and use of electrophysiology equipment; clinical support services in the nature of instruction, namely, remote commentary and guidance on the use of electrophysiology equipment. Technical support services, namely, remote delivery of software updates and remote real-time troubleshooting support for electrophysiology equipment.

Produits et services

(1) Remote training services in the operation and use of electrophysiology equipment; clinical support services in the nature of instruction, namely, remote commentary and guidance on the use of electrophysiology equipment. (2) Technical support services, namely, remote delivery of software updates and remote real-time troubleshooting support for electrophysiology equipment.

Produits et services

Technical support services, namely, remote delivery of software updates and remote real-time troubleshooting support for electrophysiology equipment

Produits et services

Remote training services in the operation and use of electrophysiology equipment; clinical support services in the nature of instruction, namely, remote commentary and guidance on the use of electrophysiology equipment

Produits et services

(1) Providing information via an Internet website portal for use by healthcare personnel in the field of electrophysiology medicine, namely, case images, videos, and compiled analytics from external capital equipment, electronic medical records, and patient health records available via a cloud-based repository

Produits et services

Providing an Internet website portal for use by healthcare personnel in the field of electrophysiology medicine, namely, case images, videos, and compiled analytics from external capital equipment, electronic medical records, and patient health records available via a cloud-based repository.

Produits et services

Providing an Internet website portal featuring information for use by healthcare personnel in the field of electrophysiology medicine, namely, case images, videos, and compiled analytics from external capital equipment, electronic medical records, and patient health records available via a cloud-based repository

Produits et services

Computer hardware and software, namely algorithms for use in the field of electrophysiology for the treatment of cardiac arrhythmia.

Produits et services

Computer hardware and downloadable software featuring algorithms for the treatment of cardiac arrhythmia using pulsed field ablation (PFA) catheters and pulse generators, all in the field of electrophysiology

Abrégé

A method of constructing a bounding box comprises: acquiring a set of sensed data points; adding, for each sensed data point, at least one calculated data point; and defining a bounding box containing the sensed and calculated data points. A method of identifying voxels in a voxel grid corresponding to a plurality of data points comprises: calculating, for each data point, a distance between it and each voxel; creating a subset of voxels comprising voxels having a distance from one data point that is less than a predetermined distance; creating another subset comprising those voxels that neighbor a voxel in the first subset; computing, for each voxel in the second subset, a distance between it and each voxel in the first subset; and identifying each voxel in the first subset that is a distance away from each voxel in the second subset that exceeds a predetermined distance.

Classes IPC  ?

• G06T 17/10 - Description de volumes, p. ex. de cylindres, de cubes ou utilisant la GSC [géométrie solide constructive]
• G06T 17/00 - Modélisation tridimensionnelle [3D] pour infographie
• G06T 11/60 - Édition de figures et de texteCombinaison de figures ou de texte
• G06T 15/08 - Rendu de volume

Abrégé

In various embodiments, a catheter comprising an expandable electrode assembly or basket is provided. In specific embodiments, the basket is particularly useful for mapping electrical activity at one or more locations within the heart. The basket can comprise a plurality of bendable or deflectable arms. At least one of the arms may have varied flexibility over its length in the form of one or more discontinuities of stiffness or flexibility at an elbow region or other variances in flexibility over the arm's length. Such variance in flexibility may allow the arm to assume a different bent configuration or respond to external factors more positively than possible with an arm having a static or near static flexibility or stiffness over its length.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes à cet effet
• A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
• A61B 5/287 - Supports pour électrodes multiples, p. ex. cathéters à électrode pour des études électrophysiologiques [EEP]

Abrégé

Catheter curve shape struts for steerable medical devices such as catheters are disclosed. These struts may not only help shape a steerable portion of a medical device (e.g., a distal portion of a catheter), but also may help to return a steered or deflected portion of the medical device to an uncurved configuration when it is no longer desirable or necessary to steer or deflect the medical device. These struts may include first and second pluralities of complementary, staggered cutout regions. When used in a catheter that is deployed via an introducer, at least some configurations of the catheter curve shape strut can enable the catheter to be rotated about its longitudinal axis, even when the distal deflectable section is in a curved configuration and inside of the introducer.

Classes IPC  ?

• A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters

Abrégé

The invention relates to ablation catheter electrodes that solve in part the problem of tissue charring during radiofrequency ablation. The electrode assemblies of the invention include passageways that lead from the inner lumen of the assemblies to the surface of the assemblies, wherein the passageways have a smooth conjunction with the outer surface. These smooth conjunctions comprise rounded edges or are chamfered. In the case of rounded edges, the rounded edges can have fixed radii of about 0.002″ to about 0.008″.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes 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

Abrégé

A family of catheter electrode assemblies includes a flexible circuit having a plurality of electrical traces and a substrate; a ring electrode surrounding the flexible circuit and electrically coupled with at least one of the plurality of electrical traces; and an outer covering extending over at least a portion of the electrode. A non-contact electrode mapping catheter includes an outer tubing having a longitudinal axis, a deployment member, and a plurality of splines, at least one of the plurality of splines comprising a flexible circuit including a plurality of electrical traces and a substrate, a ring electrode surrounding the flexible circuit and electrically coupled with at least one of the plurality of electrical traces; and an outer covering extending over at least a portion of the ring electrode. A method of constructing the family of catheter electrode assemblies is also provided.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes à cet effet
• A61B 5/287 - Supports pour électrodes multiples, p. ex. cathéters à électrode pour des études électrophysiologiques [EEP]

Abrégé

An irrigated ablation electrode assembly comprises a distal member, a first manifold, and a second manifold. The distal member includes an outer surface; an inner surface; and at least one radially extending passageway that extends from the inner surface of the distal member to the outer surface of the distal member. The first manifold includes an outer surface, an inner cavity, and at least one radially extending passageway that extends from the inner cavity to the outer surface of the first manifold. The second manifold includes an outer surface, an inner surface, and at least one radially extending passageway that extends from the inner surface of the second manifold to the outer surface of the second manifold. Other irrigated ablation electrode assemblies are also presented.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes 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 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

Abrégé

Catheter systems include direction-sensitive, multi-polar tip electrode assemblies for electroporation-mediated therapy, electroporation-induced primary necrosis therapy and electric field-induced apoptosis therapy, including configurations for producing narrow, linear lesions as well as distributed, wide area lesions. A monitoring system for electroporation therapy includes a mechanism for delivering electrochromic dyes to a tissue site as well as a fiber optic arrangement to optically monitor the progress of the therapy as well as to confirm success post-therapy. A fiber optic temperature sensing electrode catheter includes a tip electrode having a cavity whose inner surface is impregnated or coated with thermochromic/thermotropic material that changes color with changes in temperature. An optic fiber/detector arrangement monitors the thermochromic or thermotropic materials, acquiring a light signal and generating an output signal indicative of the spectrum of the light signal. An analyzer determines an electrode temperature based on the detector output and predetermined spectrum versus temperature calibration data.

Classes IPC  ?

• A61N 1/32 - Application de courants électriques par électrodes de contact courants alternatifs ou intermittents
• A61B 18/14 - Sondes ou électrodes à cet effet

Produits et services

(1) Medical catheters, pulse generators, irrigation pumps and surface electrode patches, all in the field of electrophysiology.

Produits et services

Medical catheters, generators, pumps, cables, and surface electrode patches, all in the field of electrophysiology.

Produits et services

(1) Medical catheters, pulse generators, irrigation pumps, and surface electrode patches, all in the field of electrophysiology.

Produits et services

Medical catheters, generators, pumps, cables, and surface electrode patches, all in the field of electrophysiology.

Produits et services

Medical apparatus and instruments in the nature of catheters, pulse generators, irrigation pumps, and surface electrode patches, all in the field of electrophysiology

Produits et services

Medical apparatus and instruments in the nature of catheters, pulse generators, irrigation pumps, and surface electrode patches, all in the field of electrophysiology

Abrégé

A method of manufacturing a catheter shaft includes the steps of forming an inner layer of a first polymeric material, forming a plait matrix layer including a second polymeric material about the inner layer, and forming an outer layer of a third polymeric material about the plait matrix layer. The plait matrix layer includes a braided wire mesh partially or fully embedded within the second polymeric material, which is different from at least one of the first polymeric material forming the inner layer and the third polymeric material forming the outer layer. The second polymeric material has a higher yield strain and/or a lower hardness than at least the first polymeric material, and preferably both the first and the third polymeric materials. The first polymeric material and the third polymeric material may be different or the same. The catheter shaft may be formed by stepwise extrusion, co-extrusion, and/or reflow processes.

Classes IPC  ?

• A61M 25/00 - CathétersSondes creuses
• B29C 48/151 - Revêtement d’objets creux
• B29C 61/00 - Façonnage par libération de contraintes internesFabrication de préformes ayant des contraintes internesAppareils à cet effet
• B29D 23/00 - Fabrication d'objets tubulaires
• A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
• B29C 63/00 - Garnissage ou gainage, c.-à-d. application de couches ou de gainages préformés en matière plastiqueAppareils à cet effet
• B29L 31/00 - Autres objets particuliers
• B29K 27/18 - PTFE, c.-à-d. polytétrafluoro-éthylène
• B29K 105/16 - Charges

Abrégé

Systems for detecting when catheter electrodes enter into and exit from an introducer are disclosed. In one form, a system detects a relative position of a catheter (comprising a marker band and an electrode) and an introducer (comprising a proximity sensor adapted to sense the marker band), while the catheter and introducer are in a human body. The system may comprise an electronic control unit to analyze signals from the catheter and/or the introducer, to determine whether the catheter electrode is within the introducer; and to disregard data collected from the electrode when that electrode is in the introducer. The sensor may be on the catheter and the sensed element may be on the introducer. The sensed element may comprise one or several marker bands. A marker band may be applied during the manufacture of a medical device or during its use and is any element capable of electromagnetic detection.

Classes IPC  ?

• 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
• A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
• A61B 18/14 - Sondes ou électrodes à cet effet
• 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 25/00 - CathétersSondes creuses

Abrégé

A system for providing irrigation fluid during ablation of tissue includes a catheter, an electrode assembly, at least one thermal sensor adapted to be connected to the catheter, and a control system. The electrode assembly is adapted to be connected to an ablation generator. The thermal sensor is adapted to be operatively connected to an electronic control unit (ECU). The ECU receives as an input temperature measurement data from the thermal sensor; determines a power delivery rate value for the ablation generator responsive to the temperature measurement data; and outputs the power delivery rate value. The control system also delivers irrigation fluid to the irrigated catheter at a first flow rate in a first time period and at a second flow rate in a second time period that is temporally after the first time period. The second flow rate is at least half of the first flow rate.

Classes IPC  ?

• 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 18/14 - Sondes ou électrodes 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 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 18/06 - 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 18/08 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci par chauffage à l'aide de sondes chauffées électriquement
• 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
• 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
• A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre

Produits et services

(1) Administering medical service programs, namely, negotiating contracts with providers of medical services, to enable participant members to obtain medical products and services related to electrophysiology

Produits et services

Administering medical service programs, namely, negotiating contracts with providers of medical services, to enable participant members to obtain medical products and services related to electrophysiology.

Produits et services

Administering medical service programs, namely, negotiating contracts with providers of medical services, to enable participant members to obtain medical products and services related to electrophysiology

Abrégé

An irrigated ablation catheter includes a shaft and an electrode assembly affixed to a distal end of the shaft. The distal electrode assembly includes a manifold and an ablation electrode affixed together and extending along a center axis. The electrode has a distal irrigation passageway extending therethrough to an opening at a distal tip of the electrode. The opening of the irrigation passageway is offset in distance from the center axis, and allows a thermal sensor such as a thermocouple to be located in a sensor cavity in the electrode on or near the center axis. One variation involves providing a pair of distal irrigation passageways through the electrode where both of the openings of the passageways are offset from the center axis. The thermal sensor in this variation is located in the sensor cavity substantially on the center axis.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes à cet effet
• A61M 25/00 - CathétersSondes creuses
• 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

Abrégé

A method of tracking a position of a catheter within a patient includes securing a navigational reference at a reference location within the patient, defining the reference location as the origin of a coordinate system, determining a location of an electrode moving within the patient relative to that coordinate system, monitoring for a dislodgement of the navigational reference from the initial reference location, for example by measuring the navigational reference relative to a far field reference outside the patient's body, and generating a signal indicating that the navigational reference has dislodged from the reference location. Upon dislodgement, a user may be provided with guidance to help reposition and secure the navigational reference to the initial reference location, or the navigational reference may be automatically repositioned and secured to the initial reference location. Alternatively, a reference adjustment may be calculated to compensate for the changed reference point/origin.

Classes IPC  ?

• A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
• A61B 5/283 - Électrodes bioélectriques à cet effet spécialement adaptées à des utilisations particulières pour l’électrocardiographie [ECG] invasives
• 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

Abrégé

Catheter systems include direction-sensitive, multi-polar tip electrode assemblies for electroporation-mediated therapy, electroporation-induced primary necrosis therapy and electric field-induced apoptosis therapy, including configurations for producing narrow, linear lesions as well as distributed, wide area lesions. A monitoring system for electroporation therapy includes a mechanism for delivering electrochromic dyes to a tissue site as well as a fiber optic arrangement to optically monitor the progress of the therapy as well as to confirm success post-therapy. A fiber optic temperature sensing electrode catheter includes a tip electrode having a cavity whose inner surface is impregnated or coated with thermochromic/thermotropic material that changes color with changes in temperature. An optic fiber/detector arrangement monitors the thermochromic or thermotropic materials, acquiring a light signal and generating an output signal indicative of the spectrum of the light signal. An analyzer determines an electrode temperature based on the detector output and predetermined spectrum versus temperature calibration data.

Classes IPC  ?

• A61B 18/10 - Sources d'énergie pour ces sondes
• A61N 1/32 - Application de courants électriques par électrodes de contact courants alternatifs ou intermittents
• A61B 18/14 - Sondes ou électrodes 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

Produits et services

Electrophysiology systems sold with software for electroanatomical vizualisation as an integral component.

Abrégé

A catheter and patch electrode system is provided for use with an apparatus, such as an ablation generator, having a 4-wire interface for improved impedance measurement. The 4-wire interface includes a pair of source connectors across which an excitation signal is produced and a pair of sense connector wires across which the impedance is measured. The RF ablation generator may also produce an ablation signal across a source wire and an indifferent return patch electrode. The system further includes a cable that connects the generator to a catheter. The catheter includes a shaft having a proximal end and a distal end, with an ablation tip electrode disposed at the distal end. A source lead is electrically coupled to the tip electrode and extends through the shaft to the proximal end where it is terminated. An optional sense lead is also electrically coupled to the tip electrode and extends through the shaft to the proximal end. The system further includes a source return (e.g., skin patch) and a sense return (e.g., skin patch), either or none of which may be combined with the indifferent return, and if used may be placed on opposite sides of the patient for improved performance. The impedance sensor circuit produces an excitation signal across the source connectors, which is then carried to the catheter by the cable, then to the tip electrode, travels through the complex load (tissue volume), and returns to the generator via a patch electrode. The impedance is measured by observing the voltage drop across the sense connectors caused by the excitation signal.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes à cet effet
• 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 18/16 - Électrodes neutres ou passives pour mise à la terre

Abrégé

A lumen extension member is provided for a catheter having a catheter body and an elongate electrode coupled to the catheter body. The elongate electrode defines an electrode lumen extending therethrough. The lumen extension member is positioned within the electrode lumen and is coupled to the catheter body. The lumen extension member includes a tubular member including a sidewall and at least one opening that extends through the sidewall.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes à cet effet
• A61M 25/00 - CathétersSondes creuses
• 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 25/10 - Cathéters à ballon
• A61B 5/24 - Détection, mesure ou enregistrement de signaux bioélectriques ou biomagnétiques du corps ou de parties de celui-ci

Abrégé

A method and system for assessing lesion formation in tissue is provided. The system includes an electronic control unit (ECU). The ECU is configured to acquire values for first and second components of a complex impedance between the electrode and the tissue, and to calculate an index responsive to the first and second values. The ECU is further configured to process the ECI to assess lesion formation in the tissue.

Classes IPC  ?

• 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 18/14 - Sondes ou électrodes 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 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

Abrégé

An electrophysiological laboratory system comprises a subsystem configured to perform diagnostic and/or therapeutic functions, a medical device, and an interface module disposed therebetween. The medical device comprises a shaft having proximal and distal portions, high- and low-impedance electrical pathways disposed within the shaft, and an electrode disposed at the distal portion of the shaft and electrically coupled to one or both of the high- and low-impedance electrical pathways. The electrode is configured to perform diagnostic and/or therapy delivery functions. The interface module comprises a high-impedance channel configured to couple the high-impedance pathway of the medical device to the subsystem, and to attenuate magnetic resonance RF and gradient field pulses generated by the MRI system. The interface module further comprises a low-impedance channel configured to couple the low-impedance pathway of the medical device to the subsystem.

Classes IPC  ?

• A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
• A61B 18/14 - Sondes ou électrodes à cet effet
• A61B 5/042 - Electrodes spécialement adaptées à cet effet pour l'introduction dans le corps
• 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 5/00 - Mesure servant à établir un diagnostic Identification des individus
• A61B 5/0205 - Évaluation simultanée de l'état cardio-vasculaire et de l'état d'autres parties du corps, p. ex. de l'état cardiaque et respiratoire
• A61N 1/05 - Électrodes à implanter ou à introduire dans le corps, p. ex. électrode cardiaque
• A61N 1/36 - Application de courants électriques par électrodes de contact courants alternatifs ou intermittents pour stimuler, p. ex. stimulateurs cardiaques
• G01R 33/28 - Détails des appareils prévus dans les groupes

Abrégé

A method of manufacturing a catheter assembly generally includes providing a catheter shaft having an outer layer and an inner reinforcing layer; removing at least a portion of the outer layer from a length of the distal end of the catheter shaft in order to expose a distal segment thereof; providing an inner jacket segment; axially engaging the inner jacket segment with an interior surface of the distal segment of the catheter shaft; providing an outer jacket segment around at least the exposed exterior region of the distal segment of the catheter shaft; and bonding the distal segment of the catheter shaft to the inner jacket segment and the outer jacket segment.

Classes IPC  ?

• A61M 25/00 - CathétersSondes creuses
• F16L 11/08 - Manches, c.-à-d. tuyaux flexibles en caoutchouc ou en matériaux plastiques flexibles avec armature noyée dans la paroi

Abrégé

The present invention pertains to multiple piece irrigated ablation electrode assemblies wherein the irrigation channels are insulated or separated from at least one temperature sensing mechanism within the distal portion of the electrode assembly. The present invention further pertains to methods for improved assembly and accurate measurement and control of the electrode temperatures while effectively irrigating the device and target areas.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes 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 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci

Abrégé

A fluid delivery catheter configured to allow optimal fluid distribution through each electrode by varying the diameter of a catheter lumen is disclosed. Uniform or different fluid flow rates through longitudinally spaced apart elution holes may be achieved. Exemplary fluids for use with the catheter include a cooling fluid, a therapeutic fluid, and a medication.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes à cet effet
• A61M 25/00 - CathétersSondes creuses
• A61M 25/10 - Cathéters à ballon
• 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

Abrégé

An obstruction detection system for a robotic catheter system including a robotic catheter manipulator assembly including one or more catheter manipulation bases and one or more sheath manipulation bases. Each manipulation base may be generally linearly movable on one or more tracks relative to the robotic catheter manipulator assembly. The obstruction detection system may include one or more obstruction detection sensors disposed on the track or on the manipulation bases to detect an obstruction along a path of motion of one or more manipulation bases. A software system may be provided for monitoring movement of the catheter and sheath manipulation bases, and/or a status of the obstruction detection sensors.

Classes IPC  ?

• A61B 34/30 - Robots chirurgicaux
• A61B 34/37 - Robots meneurs-suiveurs
• A61B 34/00 - Chirurgie assistée par ordinateurManipulateurs ou robots spécialement adaptés à l’utilisation en chirurgie
• 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
• 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 18/14 - Sondes ou électrodes à cet effet
• A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux

Abrégé

A system and method for assessing contact between a medical device and tissue may comprise an electronic control unit (ECU) configured to be coupled to a medical device, the medical device comprising a first electrode and a second electrode. The ECU may be further configured to select the first electrode as an electrical source and the second electrode as an electrical sink, to cause an electrical signal to be driven between the source and sink, to detect respective electric potentials on the first electrode and the second electrode while the electrical signal is driven, and to determine an impedance respective of one of the first electrode and the second electrode according to both of the respective electric potentials.

Classes IPC  ?

• A61B 5/24 - Détection, mesure ou enregistrement de signaux bioélectriques ou biomagnétiques du corps 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 18/14 - Sondes ou électrodes à cet effet
• 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 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci

Abrégé

The instant invention relates generally to introducer catheters used to help deliver catheters or other medical devices to locations within the human body. In particular, the instant invention relates to large diameter introducer catheters (introducer catheters with lumens greater than about 6 French) having increased strength, flexibility, and kink resistance. Introducer catheters according to the teachings herein may also include curved distal ends and flared (that is, funnel-like) transition sections within their lumens.

Classes IPC  ?

• A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
• A61M 25/00 - CathétersSondes creuses
• A61M 25/06 - Aiguilles avec un guide pour piquer le corps ou analogues
• B29C 41/20 - Façonnage par revêtement d'un moule, noyau ou autre support, c.-à-d. par dépôt de la matière à mouler et démoulage de l'objet forméAppareils à cet effet pour la fabrication d'objets de longueur définie, c.-à-d. d'objets séparés en incorporant des parties ou des couches préformées, p. ex. moulage autour d'inserts ou sur des objets à recouvrir
• B29L 31/00 - Autres objets particuliers

Abrégé

In various embodiments, a catheter comprising an expandable electrode assembly or basket is provided. In specific embodiments, the basket is particularly useful for mapping electrical activity at one or more locations within the heart. The basket can comprise a plurality of bendable or deflectable arms. At least one of the arms may have varied flexibility over its length in the form of one or more discontinuities of stiffness or flexibility at an elbow region or other variances in flexibility over the arm's length. Such variance in flexibility may allow the arm to assume a different bent configuration or respond to external factors more positively than possible with an arm having a static or near static flexibility or stiffness over its length.

Classes IPC  ?

• A61B 5/04 - Mesure de signaux bioélectriques du corps ou de parties de celui-ci
• A61B 18/14 - Sondes ou électrodes à cet effet
• A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
• A61B 5/287 - Supports pour électrodes multiples, p. ex. cathéters à électrode pour des études électrophysiologiques [EEP]
• 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

Produits et services

Medical devices, namely, electrophysiology systems comprised of electrophysiology catheters, sensors, electrodes, amplifiers, computer hardware, operating software, displays, monitors and computer accessories therefor, namely, workstations, carts, cables, power cords, keyboards, mouses, bedrail mounting bars, and isolation transformers, all for use in diagnostic procedures

Abrégé

A catheter apparatus includes an elongated body having a distal portion including a distal end, a plurality of flexible segments, and at least one intermediate segment that is less flexible than the flexible segments. Adjacent flexible segments are spaced from each other longitudinally by the at least one intermediate segment. Each of the flexible segments include a sidewall having at least one elongated gap extending at least partially therethrough and forming interlocking members. The at least one intermediate segment is shorter than the flexible segments.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes à cet effet
• A61M 25/00 - CathétersSondes creuses
• 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

Abrégé

A method of manufacturing a catheter shaft includes extruding an inner polymeric layer having a main lumen and two or more side lumens spaced about the main lumen; forming an outer polymeric layer about the inner polymeric layer; and inserting at least one elongate member, such as a wire, through each side lumen of the inner polymeric layer. The side lumens are less than about ⅕ the size of the main lumen. The method may further include the step of forming a braided layer between the inner polymeric layer and the outer polymeric layer. In an alternate embodiment, the method includes co-extruding an inner polymeric layer and a multi-lumen layer, the multi-lumen layer having two or more side lumens; forming an outer polymeric layer about the multi-lumen layer; and inserting at least one elongate member through each side lumen. Catheter assemblies made according to the described methods are also disclosed.

Classes IPC  ?

• A61M 25/00 - CathétersSondes creuses
• B29C 48/10 - Objets dont la section transversale comporte des cavités partiellement ou entièrement fermées, p. ex. tuyaux ou canaux flexibles, p. ex. pellicules flexibles soufflées
• B29C 48/21 - Articles comprenant au moins deux composants, p. ex. couches coextrudées les composants étant des couches les couches étant jointes à leurs surfaces
• B29C 48/00 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet
• A61B 18/14 - Sondes ou électrodes à cet effet
• A61L 29/04 - Matériaux macromoléculaires
• A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
• F16L 11/22 - Manches à canaux multiples
• B29D 23/00 - Fabrication d'objets tubulaires
• 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
• B29C 49/04 - Moulage par extrusion-soufflage
• B29K 27/18 - PTFE, c.-à-d. polytétrafluoro-éthylène
• B29L 31/00 - Autres objets particuliers
• 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

Abrégé

An electrode support structure assembly is provided comprising an electrode support structure including a plurality of splines. Each of the plurality of splines can have a proximal end portion and a distal end portion. The assembly further comprises a first element defining an axis and comprising an outer surface. The outer surface comprises a plurality of slots configured to receive the distal end portion of each of the plurality of splines. The first element is configured such that the distal end portion of each of the plurality of splines may move with respect to each slot. In accordance with some embodiments, the distal end portion of each of the plurality of splines comprises a section configured for engagement with the first element, wherein the section comprises a shoulder.

Classes IPC  ?

• A61B 5/042 - Electrodes spécialement adaptées à cet effet pour l'introduction dans le corps
• A61B 18/14 - Sondes ou électrodes à cet effet
• A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
• A61B 5/287 - Supports pour électrodes multiples, p. ex. cathéters à électrode pour des études électrophysiologiques [EEP]
• 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

Abrégé

The invention relates to ablation catheter electrodes that solve in part the problem of tissue charring during radiofrequency ablation. The electrode assemblies of the invention include passageways that lead from the inner lumen of the assemblies to the surface of the assemblies, wherein the passageways have a smooth conjunction with the outer surface. These smooth conjunctions comprise rounded edges or are chamfered. In the case of rounded edges, the rounded edges can have fixed radii of about 0.002″ to about 0.008″.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes 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

Abrégé

Ablation catheter comprising an elongate member with proximal and distal ends, wherein the distal end is arranged to apply a high energy electrical shock from a plurality of locations along the length of said distal end and wherein said distal end is curved. Preferably the distal end of the elongate member extends in a circle segment.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes à cet effet

Abrégé

A family of catheter electrode assemblies includes a flexible circuit having a plurality of electrical traces and a substrate; a ring electrode surrounding the flexible circuit and electrically coupled with at least one of the plurality of electrical traces; and an outer covering extending over at least a portion of the electrode. A non-contact electrode mapping catheter includes an outer tubing having a longitudinal axis, a deployment member, and a plurality of splines, at least one of the plurality of splines comprising a flexible circuit including a plurality of electrical traces and a substrate, a ring electrode surrounding the flexible circuit and electrically coupled with at least one of the plurality of electrical traces; and an outer covering extending over at least a portion of the ring electrode. A method of constructing the family of catheter electrode assemblies is also provided.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes à cet effet
• A61B 5/287 - Supports pour électrodes multiples, p. ex. cathéters à électrode pour des études électrophysiologiques [EEP]
• 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

Abrégé

A flexible tip electrode for an ablation catheter is disclosed. The catheter includes a catheter body and a hollow elongate tip electrode disposed at a distal end of the catheter body. The electrode includes a sidewall provided with one or more elongate gaps extending therethrough. The one or more elongate gaps providing flexibility in the sidewall for bending movement of the tip electrode relative to a longitudinal axis of the catheter body.

Classes IPC  ?

• 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 18/14 - Sondes ou électrodes à cet effet
• 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 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

Abrégé

An elongate medical device may comprise an elongate tubular body, an electrode, and a trace. The elongate tubular body may comprise a distal end portion and a proximal end portion, the body defining a longitudinal axis. The electrode may comprise electrically-conductive ink extending circumferentially about a portion of the distal end portion. The trace may comprise electrically-conductive ink, electrically coupled with the electrode, extending proximally from the electrode.

Classes IPC  ?

• A61B 5/042 - Electrodes spécialement adaptées à cet effet pour l'introduction dans le corps
• A61B 18/14 - Sondes ou électrodes à cet effet
• A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
• G01L 1/16 - Mesure des forces ou des contraintes, en général en utilisant les propriétés des dispositifs piézo-électriques
• G01L 1/00 - Mesure des forces ou des contraintes, en général
• G01L 5/00 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques
• A61N 1/05 - Électrodes à implanter ou à introduire dans le corps, p. ex. électrode cardiaque
• A61B 5/287 - Supports pour électrodes multiples, p. ex. cathéters à électrode pour des études électrophysiologiques [EEP]
• 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

Abrégé

An irrigated ablation catheter includes a shaft having a proximal end, a distal end, and an irrigation lumen therein. The catheter further includes an electrode assembly coupled to the distal end of the shaft. The electrode assembly includes an ablation electrode and a manifold. The manifold is coupled to each of the distal end of the shaft and the proximal end of the electrode. At least a portion of the manifold is constructed of a flexible material to allow the electrode assembly to deflect. The manifold includes a body, an inner cavity within the body configured for fluid communication with the irrigation lumen, and an irrigation port also within the body and configured for fluid communication with the inner cavity. The irrigation port extends from the inner cavity to the outer surface of the body, and is configured to allow for an irrigating fluid to be distributed from the manifold.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes 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

Abrégé

Magnetic guided ablation catheters and methods of manufacture are disclosed. In an exemplary embodiment, a catheter includes a unitary flexible tubing having a proximal end and a distal end. A plurality of magnets are positioned along an axis of the unitary flexible tubing, the plurality of magnets provided within the unitary flexible tubing. During operation, the plurality of magnets are responsive to an external magnetic field to selectively position and guide the catheter within a body of a patient.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes à cet effet
• A61M 25/00 - CathétersSondes creuses
• 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 17/00 - Instruments, dispositifs ou procédés chirurgicaux

Abrégé

A system and method for assessing effective delivery of ablation therapy to a tissue in a body is provided. A three-dimensional anatomical map of the tissue is generated and displayed with the map defining a corresponding volume. An index is generated corresponding to a location within the volume with the index indicative of a state of ablation therapy at the location. The index may be derived from one or more factors such as the duration an ablation electrode is present at the location, the amount of energy provided, the degree of electrical coupling between an ablation electrode and the tissue at the location and temperature. A visual characteristic (e.g., color intensity) of a portion of the anatomical map corresponding to the location is then altered responsive to the index.

Classes IPC  ?

• 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 18/14 - Sondes ou électrodes à cet effet
• A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
• 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 5/01 - Mesure de la température de parties du corps
• 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
• A61N 7/02 - Hyperthermie localisée par ultrasons
• 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 17/00 - Instruments, dispositifs ou procédés chirurgicaux

Produits et services

(1) Medical instrument, namely, steerable catheter.

Produits et services

Medical instrument, namely, steerable catheter.

Produits et services

Medical instrument, namely, steerable catheter

Abrégé

An irrigated ablation catheter includes a shaft and an electrode assembly affixed to a distal end of the shaft. The distal electrode assembly includes a manifold and an ablation electrode affixed together and extending along a center axis. The electrode has a distal irrigation passageway extending therethrough to an opening at a distal tip of the electrode. The opening of the irrigation passageway is offset in distance from the center axis, and allows a thermal sensor such as a thermocouple to be located in a sensor cavity in the electrode on or near the center axis. One variation involves providing a pair of distal irrigation passageways through the electrode where both of the openings of the passageways are offset from the center axis. The thermal sensor in this variation is located in the sensor cavity substantially on the center axis.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes à cet effet
• A61M 25/00 - CathétersSondes creuses
• 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

Abrégé

A catheter assembly includes an inner liner made of flexible material and an outer layer having a steering mechanism. The steering mechanism includes at least one flat wire and a corresponding lumen through which the flat wire may travel. The steering mechanism may also include at least one pull ring to which the flat wires are attached. A layer of heat shrink material may encompass the outer layer. A braided wire assembly may also be provided in the outer layer, and may be formed by braiding a plurality of flat wires into a wire mesh. The overall cross-section of the catheter assembly is preferably substantially circular. A catheter shaft may include a plurality of segments of differing hardness characteristics. The outer layer typically comprises a melt processing polymer such that the catheter assembly may be laminated using heat.

Classes IPC  ?

• A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
• A61M 25/00 - CathétersSondes creuses

Abrégé

A system for controlling delivery of ablation energy by an ablation catheter to tissue in a body is provided. The system includes an electronic control unit configured to determine, responsive to a measurement signal from the ablation catheter, a value for a characteristic associated with the delivery of ablation energy to the tissue. In one embodiment, the characteristic is the degree of contact between the ablation catheter and the tissue. The unit is further configured to generate a control signal, responsive to the determined value of the characteristic, to control an amount of energy delivered from an ablation delivery element on the ablation catheter to the tissue. The amount of energy varies in response to the determined value of the characteristic when the determined value of the characteristic meets a predetermined condition relative to a threshold value for the characteristic.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes 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 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

Abrégé

The invention provides a deflectable catheter capable of forming many variable radius spiral forms from a single, flexible, distal end section. In one aspect, the catheter employs a variable radius control wire to extend or deform a pre-formed loop structure into a three dimensional spiral-like form or geometry. The ability of a single catheter to create a multitude of shapes and sizes allows users to access to a number of anatomical areas without changing the catheter during a procedure or treatment. In another aspect, the invention encompasses methods of producing deflectable variable radius catheters, where two or more regions of the catheter having common control wires are fused or formed onto one another.

Classes IPC  ?

• A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
• A61M 25/00 - CathétersSondes creuses
• A61M 25/10 - Cathéters à ballon

Abrégé

An apparatus for imparting a tensile force to deflect a distal portion of a catheter while maintaining its exterior dimensions may include a handle grip including a cross-section of generally predetermined exterior dimensions, and a longitudinal axis. A flexible elongate member may include proximal and distal end portions, with the proximal end portion being coupled to the handle grip. An adjustment knob may include a cross-section of generally predetermined exterior dimensions, and is rotatably coupled to the handle grip around the longitudinal axis. An elongate deflection member may be operably coupled to the adjustment knob and to the distal end portion of the elongate member. Rotation of the adjustment knob may impart a tensile force to the deflection member thereby causing the distal end portion of the elongate member to deflect from a prior configuration while maintaining the generally predetermined exterior dimensions of the handle grip and the adjustment knob.

Classes IPC  ?

• A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
• A61B 5/042 - Electrodes spécialement adaptées à cet effet pour l'introduction dans le corps

Abrégé

A deflectable catheter shaft section is disclosed comprising an elongated body extending along a longitudinal axis and comprising a distal end and a proximal end; and a plurality of lumens extending along the longitudinal axis of the elongated body, wherein at least one of the lumens is abutting at least another one of the lumens. A catheter comprising the deflectable catheter shaft section and a method of manufacturing the deflectable catheter shaft section are also disclosed. A catheter incorporating a deflectable catheter shaft section can further comprise first and second compression coils disposed over pull wires located within the catheter, wherein the compression coils are unattached to the catheter or components thereof, but can be constrained by a shaft coupler at a distal end of each of the compression coils and by at least a portion of a handle assembly at a proximal end of each of the compression coils.

Classes IPC  ?

• A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
• A61B 18/14 - Sondes ou électrodes à cet effet
• A61M 25/00 - CathétersSondes creuses
• 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 5/00 - Mesure servant à établir un diagnostic Identification des individus
• A61B 5/01 - Mesure de la température de parties du corps
• A61B 5/283 - Électrodes bioélectriques à cet effet spécialement adaptées à des utilisations particulières pour l’électrocardiographie [ECG] invasives

Abrégé

An apparatus for detecting deformation of an elongate body may comprise a light source configured to sequentially provide light of multiple frequencies, an optical receiver configured to receive light from the light source, and a filter disposed between the light source and the optical detector. The filter may comprise multiple segments, each of the segments configured to filter light at one of the frequencies so as to alter the amount of light incident on said optical receiver. A total amount of light detected by the optical receiver may change during the sequence so as to be indicative of deformation of the elongate body.

Classes IPC  ?

• G01N 21/84 - Systèmes spécialement adaptés à des applications particulières
• 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
• G01B 11/16 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer la déformation dans un solide, p. ex. indicateur optique de déformation
• G01L 1/24 - Mesure des forces ou des contraintes, en général en mesurant les variations des propriétés optiques du matériau quand il est soumis à une contrainte, p. ex. par l'analyse des contraintes par photo-élasticité
• G01L 5/00 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques
• A61M 25/00 - CathétersSondes creuses

Abrégé

An electrophysiology catheter is provided. In one embodiment, the catheter includes an elongate, deformable shaft having a proximal end and a distal end and a basket electrode assembly coupled to the distal end of the shaft. The basket electrode assembly has a proximal end and a distal end and is configured to assume a compressed state and an expanded state. The electrode assembly further includes one or more tubular splines having a plurality of electrodes disposed thereon and a plurality of conductors. Each of the plurality of conductors extends through the tubular spline from a corresponding one of the plurality of electrodes to the proximal end of the basket electrode assembly. The tubular splines are configured to assume a non-planar (e.g., a twisted or helical) shape in the expanded state.

Classes IPC  ?

• A61B 5/042 - Electrodes spécialement adaptées à cet effet pour l'introduction dans le corps
• A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
• A61B 18/14 - Sondes ou électrodes à cet effet
• A61B 5/04 - Mesure de signaux bioélectriques du corps ou de parties de celui-ci
• 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

Abrégé

A medical device is provided comprising a shaft comprising a first segment and a second segment. The first segment is configured to buckle upon application of a first critical force. The second segment includes an outer surface and an inner surface and is configured to buckle upon application of a second critical force. The second critical force is lower than the first critical force. The medical device further comprises a coil disposed radially inwardly of the inner surface of the second segment.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes à cet effet
• A61M 25/00 - CathétersSondes creuses
• A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
• A61M 25/09 - Fils de guidage
• 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

Abrégé

A dual braided catheter shaft includes an inner helical braid and outer helical braid than encapsulate an axially extending steering wire there between. In one embodiment, the shaft includes an inner polymer jacket, an inner braid formed on the inner jacket, a steering wire disposed along an outside surface of the inner braid, an outer braid formed over the inner braid and steering wire assembly and an outer jacket formed on the outer braid. The braiding parameters of the inner and outer braids can be varied along the length of the catheter to provide varying mechanical properties.

Classes IPC  ?

• A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
• A61M 25/00 - CathétersSondes creuses

Abrégé

A monitoring, managing and protecting system is provided that includes a monitoring probe working in conjunction with an ablating device. The probe is configured to be positioned in close proximity to a region of non-targeted tissue proximate an ablation site of targeted tissue and to be operatively connected to an electrical response assessment system or component. The probe includes an elongate shaft having proximal and distal ends, with a handle disposed at the proximal end thereof and a tissue monitoring and protecting apparatus disposed at the distal end thereof. The ablating device includes an elongate shaft having proximal and distal ends, with a handle mounted at the proximal end thereof and an ablation element mounted at the distal end thereof. The monitoring probe measures electrical characteristics of the non-targeted tissue and/or of the tissue between the monitoring electrode and the ablation electrode. The electrical response assessment system determines whether the tissue is being damaged based on the electrical measurements. The monitoring, managing and protecting system can notify a practitioner based on the determination, or modify or stop the ablation procedure.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes à cet effet
• 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 34/30 - Robots chirurgicaux
• 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
• 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

Abrégé

A method of manufacturing a catheter shaft includes the steps of forming an inner layer of a first polymeric material, forming a plait matrix layer including a second polymeric material about the inner layer, and forming an outer layer of a third polymeric material about the plait matrix layer. The plait matrix layer includes a braided wire mesh partially or fully embedded within the second polymeric material, which is different from at least one of the first polymeric material forming the inner layer and the third polymeric material forming the outer layer. The second polymeric material has a higher yield strain and/or a lower hardness than at least the first polymeric material, and preferably both the first and the third polymeric materials. The first polymeric material and the third polymeric material may be different or the same. The catheter shaft may be formed by stepwise extrusion, co-extrusion, and/or reflow processes.

Classes IPC  ?

• A61M 25/00 - CathétersSondes creuses
• B29C 48/151 - Revêtement d’objets creux
• B29C 61/00 - Façonnage par libération de contraintes internesFabrication de préformes ayant des contraintes internesAppareils à cet effet
• B29D 23/00 - Fabrication d'objets tubulaires
• A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
• B29C 63/00 - Garnissage ou gainage, c.-à-d. application de couches ou de gainages préformés en matière plastiqueAppareils à cet effet
• B29L 31/00 - Autres objets particuliers
• B29K 27/18 - PTFE, c.-à-d. polytétrafluoro-éthylène
• B29K 105/16 - Charges

Abrégé

A method for projecting a 3D surface geometry onto a planar projection comprises: obtaining a 3D geometry of a chamber surface using an algorithm that generates angles and distances between points on the chamber surface that represent mapping information; applying a cutting curve to at least two points on the chamber surface; and at least partially unfolding at least a portion of the chamber surface along the cutting curve to form a planar projection that optimally preserves the angles and distances between points on the chamber surface.

Classes IPC  ?

• A61B 5/042 - Electrodes spécialement adaptées à cet effet pour l'introduction dans le corps
• G06T 11/00 - Génération d'images bidimensionnelles [2D]
• G06T 17/20 - Description filaire, p. ex. polygonalisation ou tessellation
• G06T 19/00 - Transformation de modèles ou d'images tridimensionnels [3D] pour infographie
• G06T 19/20 - Édition d'images tridimensionnelles [3D], p. ex. modification de formes ou de couleurs, alignement d'objets ou positionnements de parties
• A61B 5/0408 - Electrodes spécialement adaptées à cet effet

Produits et services

Computer hardware, software, and interfaces for use in the field of electrophysiology for collecting, mapping, visualizing, and analyzing electroanatomical data.

Produits et services

Computer hardware, software, and interfaces for use in the field of electrophysiology for collecting, mapping, visualizing, and analyzing electroanatomical data

Produits et services

(1) Computer hardware, software, and interfaces for use in the field of electrophysiology for collecting, mapping, visualizing, and analyzing electroanatomical data

Abrégé

A deflectable catheter shaft section is disclosed comprising an elongated body extending along a longitudinal axis and comprising a distal end and a proximal end; and a plurality of lumens extending along the longitudinal axis of the elongated body, wherein at least one of the lumens is abutting at least another one of the lumens. A catheter comprising the deflectable catheter shaft section and a method of manufacturing the deflectable catheter shaft section are also disclosed. A catheter incorporating a deflectable catheter shaft section can further comprise first and second compression coils disposed over pull wires located within the catheter, wherein the compression coils are unattached to the catheter or components thereof, but can be constrained by a shaft coupler at a distal end of each of the compression coils and by at least a portion of a handle assembly at a proximal end of each of the compression coils.

Classes IPC  ?

• A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
• A61B 18/14 - Sondes ou électrodes à cet effet
• A61M 25/00 - CathétersSondes creuses
• A61B 5/042 - Electrodes spécialement adaptées à cet effet pour l'introduction dans le corps
• 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 5/00 - Mesure servant à établir un diagnostic Identification des individus
• A61B 5/01 - Mesure de la température de parties du corps

Abrégé

An irrigated ablation electrode assembly comprises a distal member, a first manifold, and a second manifold. The distal member includes an outer surface; an inner surface; and at least one radially extending passageway that extends from the inner surface of the distal member to the outer surface of the distal member. The first manifold includes an outer surface, an inner cavity, and at least one radially extending passageway that extends from the inner cavity to the outer surface of the first manifold. The second manifold includes an outer surface, an inner surface, and at least one radially extending passageway that extends from the inner surface of the second manifold to the outer surface of the second manifold. Other irrigated ablation electrode assemblies are also presented.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes 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 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

Abrégé

An elongate medical device with independently-deflectable segments and a handle for manually deflecting those segments can include a shaft having a distal segment and proximal segment, at least one proximal segment deflection wire adapted to deflect the proximal segment, at least one distal segment deflection wire adapted to deflect the distal segment independent of the proximal segment, and a handle portion. The handle portion may comprise a first manual actuation mechanism coupled to the at least one distal segment deflection wire and a second manual actuation mechanism coupled to the at least one proximal segment deflection wire. Actuation of the first manual actuation mechanism may impart a tensile force on the distal segment deflection wire to cause the distal segment to deflect, and actuation of the second manual actuation mechanism may impart a tensile force on the proximal segment to cause the proximal segment to deflect.

Classes IPC  ?

• A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
• B29C 65/02 - Assemblage d'éléments préformésAppareils à cet effet par chauffage, avec ou sans pressage
• 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 18/14 - Sondes ou électrodes à cet effet
• 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 25/00 - CathétersSondes creuses

Abrégé

A system for providing irrigation fluid during ablation of tissue includes a catheter, an electrode assembly, at least one thermal sensor adapted to be connected to the catheter, and a control system. The electrode assembly is adapted to be connected to an ablation generator. The thermal sensor is adapted to be operatively connected to an electronic control unit (ECU). The ECU receives as an input temperature measurement data from the thermal sensor; determines a power delivery rate value for the ablation generator responsive to the temperature measurement data; and outputs the power delivery rate value. The control system also delivers irrigation fluid to the irrigated catheter at a first flow rate in a first time period and at a second flow rate in a second time period that is temporally after the first time period. The second flow rate is at least half of the first flow rate.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes 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 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 18/08 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci par chauffage à l'aide de sondes chauffées électriquement
• 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
• 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
• A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre

Abrégé

Embodiments of a guide and flexible sleeve for use with catheters for ablation or other medical procedures are disclosed. An exemplary catheter comprises a guide element having a proximal end and a distal end, the distal end configurable in a desired shape. A flexible sleeve is conformable to the guide element so that the flexible sleeve slides over the guide element, the flexible sleeve has a proximal end and a distal end. A controller couples to the flexible sleeve. The controller operates to move the flexible sleeve at least part way between the distal end of the guide element and the proximal end of the guide element. At least one ablation element disposed at the distal end of the flexible sleeve operates to form a substantially continuous ablative lesion when the flexible sleeve is in contact with a contiguous volume of target tissue.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes à cet effet
• A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
• A61B 17/22 - Instruments pour comprimer les ulcères ou similaires placés sur les organes internes du corpsInstruments pour curer les cavités des organes du corps, p. ex. des osInstruments, dispositifs ou procédés chirurgicaux pour l'élimination ou la destruction invasives des calculs utilisant des vibrations mécaniquesInstruments, dispositifs ou procédés chirurgicaux pour l'élimination non prévue ailleurs des obstructions dans les vaisseaux sanguins
• 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 5/283 - Électrodes bioélectriques à cet effet spécialement adaptées à des utilisations particulières pour l’électrocardiographie [ECG] invasives

Abrégé

A system and method are provided for determining electrophysiological data. The system comprises an electronic control unit that is configured to receive electrical signals from a set of electrodes, receive position and orientation data for the set of electrodes from a mapping system, compensate for position and orientation artifacts of the set of electrodes, compose cliques of a subset of neighboring electrodes in the set of electrodes, determine catheter orientation independent information of a target tissue, and output the orientation independent information to a display. The method comprising receiving electrogram data for a set of electrodes (80), compensating for artifacts in sensor positions in the mapping system (81), resolving the bipolar signals into a 3D vector electrogram in the mapping system coordinates (82), manipulating observed unipolar voltage signals and the tangent component of the e-field to estimate the conduction velocity vector (83), and outputting the catheter orientation independent information (84).

Classes IPC  ?

• A61B 5/04 - Mesure de signaux bioélectriques du corps ou de parties de celui-ci
• A61B 5/042 - Electrodes spécialement adaptées à cet effet pour l'introduction dans le corps
• A61B 5/0452 - Détection de paramètres spécifiques du cycle de l'électrocardiogramme
• A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
• A61B 18/14 - Sondes ou électrodes à cet effet
• 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 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

Abrégé

A catheter includes a braid assembly having a dual-laminate coating. The braid assembly includes a plurality of braid members interwoven to provide for interstices between the braid members, each braid member having an electrically conductive element, a flexible non-electrically-conductive polymer coating that insulates the electrically conductive element and a thermoplastic bonding adhesive coating. The braid assembly is formed between an inner polymer layer and an outer polymer layer. One or more of the braid members may be coupled to an energy delivery element.

Classes IPC  ?

• A61B 18/14 - Sondes ou électrodes à cet effet
• A61M 25/00 - CathétersSondes creuses
• A61N 1/05 - Électrodes à implanter ou à introduire dans le corps, p. ex. électrode cardiaque
• B32B 37/12 - Procédés ou dispositifs pour la stratification, p. ex. par polymérisation ou par liaison à l'aide d'ultrasons caractérisés par l'usage d'adhésifs
• B32B 38/00 - Opérations auxiliaires liées aux procédés de stratification
• B32B 38/08 - Imprégnation
• A61B 5/042 - Electrodes spécialement adaptées à cet effet pour l'introduction dans le corps
• A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
• 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
• 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
• A61N 7/00 - Thérapie par ultrasons

Abrégé

Systems and methods for aligning directionally operable medical devices with and upon target tissue. Systems and methods for aligning medical devices such as directional ablation catheters to and upon target tissue by monitoring irrigant backpressure. The current disclosure provides solutions to the problem of rotationally or angularly aligning a directional medical device toward tissue.

Classes IPC  ?

• A61B 17/32 - Instruments chirurgicaux coupants
• 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
• A61B 18/14 - Sondes ou électrodes à cet effet
• A61N 7/00 - Thérapie par ultrasons
• 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

Abrégé

Catheter shaft handles and deflection actuators are disclosed. The actuators include at least one pull wire guide wall and a means for anchoring the proximal portion of a pull wire or of a fiber attached to a pull wire. Each actuator is pivotable relative to the catheter handle housing, and may comprise at least one boss for pivoting the actuator relative to the catheter handle housing. The actuators transfer rotational motion based upon user input on a boss into longitudinal motion of a pull wire. The actuators may include a tensioning mechanism comprising a tension adjustment pin and a pin block, wherein the tension adjustment pin is rotatably attached to the pin block to enable adjustment of tension in a pull wire (e.g., during assembly of the catheter handle).

Classes IPC  ?

• A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters

Abrégé

A medical device can be localized by providing at least three non-colinear localization elements (e.g., electrodes) thereon. Once placed in a non-ionizing localization field, three adjacent localization elements, at least one of which will typically be a spot electrode, may be selected, and the non-ionizing localization field may be used to measure their locations. A cylinder is defined to fit the measured locations of the selected localization elements. The cylinder is rotationally oriented using the measured location of a spot electrode. Location and rotational attitude information may be used to construct a three-dimensional representation of the medical device within the localization field. The electrodes may be provided on the medical device or on a sheath into which the medical device is inserted. The invention also provides systems and methods for identifying and calibrating deflection planes where the medical device and/or sheath are deflectable.

Classes IPC  ?

• A61B 5/06 - Dispositifs autres que ceux à radiation, pour détecter ou localiser les corps étrangers
• A61M 25/00 - CathétersSondes creuses
• A61M 25/01 - Introduction, guidage, avance, mise en place ou maintien en position des cathéters
• 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 8/12 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores dans des cavités ou des conduits du corps, p. ex. en utilisant des cathéters
• A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux