An orthopaedic implant includes an acetabular bearing and an acetabular shell component. The bearing includes a convex outer surface having a hemispherical surface, a curved lead-in surface, a flat flange surface, a curved relief surface, and a flat tapered surface. The curved relief surface extends inward relative to the flat tapered surface, and the flat flange surface extends outward relative to the flat tapered surface. The shell component includes a concave inner surface having a tapered surface configured to engage the tapered surface of the bearing. An annular groove is defined in the concave inner wall of the shell component and is configured to receive the flat flange surface. Methods for assembling and using the prosthetic implant are also disclosed.
A system and method for detecting movement of a first navigation array relative to a bone during computer-assisted surgery, including: monitoring a location of a landmark on the bone using the first navigation array, wherein the landmark is at a first end of the bone and the first navigation array is adjacent to a second end of the bone; determining that the location of the landmark has moved a distance greater than a threshold value; and indicating suspicious activity when the distance is greater than the threshold value.
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
3.
IMPACTION INSTRUMENT FOR IMPLANTING AN ORTHOPAEDIC KNEE PROSTHESIS AND ASSOCIATED METHOD OF USING THE SAME
An orthopaedic surgical instrument for use during a surgical procedure to implant a tibial tray into a surgically-prepared proximal end of a tibia and a femoral component into a surgically-prepared distal end of a femur is disclosed. The surgical instrument includes a metallic impaction handle and a removable polymeric impaction insert.
A tool and an associated method for removing a prosthetic implant includes a lateral tool, a first impact tool secured to the lateral tool, a medial tool, and a second impact tool. Although the tool can be used to remove a variety of different prosthetic implants, it finds particular application in the removal of femoral implants. Both lateral and medial tools are utilized. The lateral tool includes a generally arcuate shape with upstanding sidewalls that define an arcuate interior. The lateral tool is thus dimensioned to follow the contour of the lateral side of a femoral implant. The medial tool includes opposing side walls that define an interior opening. The opening is sized to receive the neck of the femoral implant, thereby allowing the tool to closely follow the medial bone/implant interface.
A surgical instrument for positioning and orienting instruments for use in an orthopaedic surgical knee procedure is disclosed. A surgical instrument system and method of performing an orthopaedic surgical knee procedure are also disclosed.
A tracking array tracking system includes a tracking sensor, a position determination logic block coupled to the tracking sensor, and a robotic device controller coupled to the position determination logic block, a tracking array including a plurality of light sources, and a power module coupled to the tracking array, the power module including one or more variable current sources, and the robotic device controller is communicatively coupled to the power module. Together, the tracking sensor, position determination logic block, and robotic device controller, determine changes in distance of the light sources from the tracking sensor and command the power module to increase or decrease the drive current to a light source if the light source has moved away from, or closer to, the tracking sensor, respectively.
A method of manufacturing an orthopaedic prosthetic component can include identifying a porous three-dimensional Voronoi structure shaped to be implanted in a patient's body. The porous three-dimensional Voronoi structure can include a plurality of struts, a number of pores, a first surface, and a second surface. The plurality of struts can define randomized interconnected organicized cells. Respective groups of struts intersect so as to define a respective plurality of nodes. The method can include the step of modifying modifying at least one of the struts or at least one of the nodes such that the porous three-dimensional structure comprises a lattice structure other than a Voronoi pattern. Instructions can then be generated to fabricate the porous three-dimensional structure.
Implants, device, systems and methods for replacing an articulation surface in a joint, for example, a reverse glenoid implant with a baseplate, a central screw, a peripheral screw, a modular taper, and a post. Methods for implanting the glenoid implant are also disclosed.
An orthopaedic surgical instrument includes a 4-in-1 cutting block and a removable alignment guide. The alignment guide is configured to contact the posterior femoral condyles of a patient's femur so as to kinematically align the 4-in-1 cutting block. A number of shims are selectively installed on the alignment guide to account for any cartilage loss present on the patient's femur. A method of surgically preparing a patient's femur utilizing kinematic alignment is also disclosed.
An orthopaedic surgical instrument includes a 4-in-1 cutting block and a removable alignment guide. The alignment guide is configured to contact the posterior femoral condyles of a patient's femur so as to kinematically align the 4-in-1 cutting block. A number of shims are selectively installed on the alignment guide to account for any cartilage loss present on the patient's femur. A method of surgically preparing a patient's femur utilizing kinematic alignment is also disclosed.
Sensor-enabled surgical retractor devices, systems, and methods are disclosed herein that can be coupled to a surgical robot during a robotic or robot-assisted surgical procedure to maintain health of retracted anatomy and prolong the amount of time until a surgical procedure must be interrupted to adjust a retractor. In some embodiments, interruption of a surgical procedure can be avoided by providing for minor and, in some cases, automatically administered, adjustment of retractor devices to alleviate pressure on retracted tissue without requiring surgeon attention or intervention. Fine (e.g., minor) adjustments to the retractor can be made automatically over the course of a surgical procedure to prevent damage to retracted anatomy and increase the time until a major adjustment of the retractor is needed.
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 90/50 - Supports pour instruments chirurgicaux, p. ex. bras articulés
13.
ADJUSTABLE REAMER DRIVER AND IMPACTOR, AND METHODS OF PREPARING SAID DRIVER AND IMPACTOR
An instrument comprising a body comprising a distal end spaced apart from a proximal end relative to a longitudinal axis and a handle coupling located near the proximal end, the body defining a channel miming between the distal end to the proximal end; a drive comprising a first connector located adjacent the distal end and adapted to be connected to a driven instrument, a second connector located adjacent the proximal end and adapted to be connected to a driving instrument, and a drive shaft arranged in the channel, the drive shaft coupling the second connector to the first connector; and an adjustable handle located near the distal end, the adjustable handle comprising a grip spacing apart a leading end from a trailing end along a handle axis, the leading end coupling the handle to the handle coupling, the trailing end shaped to define an impaction plate; wherein the adjustable handle is arrangeable relative to the body in a first and a second position, in the first position the leading end is arranged relative to the handle coupling such that the handle axis is offset relative to the longitudinal axis, and in the second position the leading end is arranged relative to the handle coupling such that the handle axis is parallel to the longitudinal axis.
Implants, device, systems and methods for replacing an articulation surface in a joint, for example, a glenoid implant with an articular surface and an opposing bone contacting surface having a ring and post extending therefrom that respectively mechanically connect with cortical bone and cancellous bone of a glenoid. Methods for implanting the glenoid implant are also disclosed.
A surgical component mounting system is provided that can include a surgical instrument (5) and an intermediate component (20). The surgical instrument can have a proximal end and a distal end (7) that can provide a first part (9) of a mounting. The intermediate component can have a proximal end that can provide a second part (22) of the mounting and a distal end (35) that can be provided with a first part (36, 38a, 38b) of a second mounting such that the first part of the mounting and the second part of the mounting are detachable.
A method for an orthopaedic surgical procedure includes capturing, using a surgical navigation system, a plurality of measurements of a knee joint of a patient including measurements on an operative side of a femur of the patient relative to a femur coordinate space, measurements on an operative side of a tibia of the patient relative to a tibia coordinate space, and a spatial relationship between the femur coordinate space and the tibia coordinate space at each of a plurality of different poses of the knee joint. The method also includes developing, using the surgical navigation system, a surgical plan for the orthopaedic surgical procedure based on the plurality of measurements. The surgical plan includes a position of a tibial prosthesis in the tibia coordinate space, and a position of a femoral prosthesis in the femur coordinate space. A surgical navigation system is also disclosed.
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
A61F 2/46 - Outils particuliers pour l'implantation des articulations artificielles
A tool for removal of a tibial implant a proximal end, and a distal end having an elongated cutting portion, wherein the elongated cutting portion has an edge sharpened for cutting extending a predetermined distance on a first side of the tool, around the distal end, and extending the predetermined distance on a second side of the tool. The tool is configured to release an implanted prosthesis by closely following the bone/implant interface. For example, the tools are used to cut around, dislodge, and remove a tibial component of a prosthetic knee. The edge is situated to be able to cut in many directions while inserted in the knee.
An orthopaedic knee prosthesis includes a tibial insert and a femoral component configured to articulate on the tibial insert. The tibial insert includes a lateral articular surface and medial articular surface that is asymmetrically shaped relative to the lateral articular surface. The medial articular surface is shaped to reduce anterior translation of a medial condyle of the femoral component, while the lateral articular surface is shaped to allow a lateral condyle of the femoral component to pivot, relative to the medial articular surface, along an arcuate articular path. Additionally, one or both condyles of the femoral component may include a femoral articular surface having a curved femoral surface section defined by a continuously decreasing radius of curvature.
A method for an orthopaedic surgical procedure includes capturing, using a surgical navigation system, a plurality of measurements of a knee joint of a patient including measurements on an operative side of a femur of the patient relative to a femur coordinate space, measurements on an operative side of a tibia of the patient relative to a tibia coordinate space, and a spatial relationship between the femur coordinate space and the tibia coordinate space at each of a plurality of different poses of the knee joint. The method also includes developing, using the surgical navigation system, a surgical plan for the orthopaedic surgical procedure based on the plurality of measurements. The surgical plan includes a position of a tibial prosthesis in the tibia coordinate space, and a position of a femoral prosthesis in the femur coordinate space. A surgical navigation system is also disclosed.
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61F 2/38 - Articulations pour les coudes ou les genoux
A61F 2/46 - Outils particuliers pour l'implantation des articulations artificielles
A connection member for connecting a surgical tool to a plurality of different kinds of corresponding connector. A surgical tool including the connection member. A surgical kit including the surgical tool. The connection member includes an elongate shaft having a longitudinal axis, a proximal end and a distal end. The connection member also includes a plurality of connection features located at the proximal end of the shaft. The plurality of connection features includes at least one connection feature for mating with a first kind of corresponding connector. The plurality of connection features also includes at least one connection feature for mating with a second, different kind of corresponding connector. The connection member may be a male connection member and the corresponding connectors may be female. A method including providing the surgical tool and connecting the connection member to a corresponding connector.
Method(s) and device(s) are described herein for mixed-reality (MR) headset-based navigation during a surgical procedure. For example, a surgeon or other medical professional may use a pointer during a surgical procedure to acquire a location of a patient's anatomical landmark. A virtual button may be overlaid on an array of the pointer, and may follow the motion of the pointer if the pointer is moved. An eye gaze and/or a head gaze may be used to launch acquisition of the location of the anatomical landmark. The location of the anatomical landmark may be confirmed by the surgeon.
G06F 3/04817 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] fondées sur des propriétés spécifiques de l’objet d’interaction affiché ou sur un environnement basé sur les métaphores, p. ex. interaction avec des éléments du bureau telles les fenêtres ou les icônes, ou avec l’aide d’un curseur changeant de comportement ou d’aspect utilisant des icônes
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
G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
G06T 7/73 - Détermination de la position ou de l'orientation des objets ou des caméras utilisant des procédés basés sur les caractéristiques
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 90/50 - Supports pour instruments chirurgicaux, p. ex. bras articulés
A61B 90/53 - Supports pour instruments chirurgicaux, p. ex. bras articulés reliés au corps du chirurgien, p. ex. par une ceinture
22.
TRIGGERING AN ACQUISITION DURING MIXED-REALITY HEADSET-BASED NAVIGATION
Systems, methods, and apparatus are described herein for mixed-reality (MR) headset-based navigation during a surgical procedure. For example, a surgeon or other medical professional may use a pointer during a surgical procedure to acquire a location of a patient's anatomical landmark. A virtual button may be overlaid on an array of the pointer, and may follow the motion of the pointer if the pointer is moved. An eye gaze and/or a head gaze may be used to launch acquisition of the location of the anatomical landmark. The location of the anatomical landmark may be confirmed by the surgeon.
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 34/00 - Chirurgie assistée par ordinateurManipulateurs ou robots spécialement adaptés à l’utilisation en chirurgie
A61B 90/50 - Supports pour instruments chirurgicaux, p. ex. bras articulés
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
23.
METHODS, SURGICAL INSTRUMENTS, AND ASSOCIATED SYSTEMS FOR PERFORMING A SURGICAL PROCEDURE TO BALANCE A PATIENT'S KNEE
An inclination guide for use with an implant insertion tool during a surgical procedure includes a unitary body having a clip configured to be coupled to a mounting surface of the implant insertion tool, an elongated riser extending from the clip, and an elongated indicator extending from the elongated riser to a distal end. Such a design allows for an inexpensive and lightweight inclination guide that may be easily and quickly adjusted after assembly.
A geofencing system for a surgical handpiece with a cutting surface, including: a motion tracking system configured to track a location of the surgical handpiece; and an event detector configured to: receive a current measurement signal indicating a current usage of the surgical handpiece; receive motion information regarding the surgical handpiece from the motion tracking system; determine if the cutting surface has exited a second surface of a bone opposite a first surface where the cutting surface entered the bone based upon the current measurement signal and the motion information; and stop the surgical handpiece when it is determined that the cutting surface has exited the second surface of the bone.
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A geofencing system for a surgical handpiece with a cutting surface, including: a motion tracking system configured to track a location of the surgical handpiece; and an event detector configured to: receive a current measurement signal indicating a current usage of the surgical handpiece; receive motion information regarding the surgical handpiece from the motion tracking system; determine if the cutting surface has exited a second surface of a bone opposite a first surface where the cutting surface entered the bone based upon the current measurement signal and the motion information; and stop the surgical handpiece when it is determined that the cutting surface has exited the second surface of the bone.
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
Systems and methods for planning and assisting orthopaedic surgical procedures include a computer system and a robotic surgical device. The computer system receives multiple surgeon preferences, including target values and boundary values for surgical parameters of the orthopaedic surgical procedure. A surgeon uses the computer system to perform bony registration and leg-alignment registration for anatomy of a patient. The computer system determines a surgical plan for the orthopaedic surgical procedure based on the surgeon preferences, the bony registration, and the leg-alignment registration. The surgical plan includes planned values associated with the surgical parameters that are within the boundary values of the surgeon preferences. Determining the surgical plan may include automatically adjusting tibial coronal alignment, femoral coronal alignment, femoral flexion, femoral rotation, distal femoral resection height, proximal tibial resection height, and/or distal femoral resection height. The computer system may control the robotic surgical device according to the surgical plan.
A surgical device for extraction of a prosthetic component from a patient during surgery. The surgical device comprises a first component having a female coupling portion at a first end, and a second end configured to be connected to one of a prosthetic component or a surgical extraction instrument. The first component further includes a retainer. The second component has a first end defining a male coupling portion, a stem extending from the male coupling portion, and a second end configured to be connected to the other of the prosthetic component or the surgical extraction instrument. The male coupling portion of the second component is configured to be disposed within the female coupling portion of the first component and retained within the female coupling portion by the retainer, with the stem of the second component extending away from the female coupling portion of the first component. The male coupling portion of the second component and the retainer of the first component are configured such that the male coupling portion is held in the female coupling portion while allowing articulation of the first component relative to the second component. The first and second components form an articulating joint allowing a user to connect the surgical extraction instrument to the prosthetic component in a patient, articulate a portion of the surgical extraction instrument which resides external from the operating site, and transfer extraction forces to enable removal of the prosthetic component from the patient.
A neck trial is disclosed. The neck trial has a body and a neck. The body has an exterior surface. The neck extends away from the body along a neck axis. At least one first line is provided on the exterior surface, which extends in a first direction parallel to an inferior-superior axis of a patient when in use. At least one second line is provided on the exterior surface, which extends in a second direction parallel to a medial-lateral axis of the patient in use. The number of first lines, or the position of the first line or lines relative to the second line or lines, is indicative of an amount of offset in the medial-lateral direction caused by the neck trial. The number of second lines, or the position of the second line or lines relative to the first line or lines, is indicative of an amount of leg-length in the inferior-superior direction caused by the neck trial. A kit of parts, a trial assembly and a method of trialling a joint of a patient are also disclosed.
There invention relates to a handle for coupling to orthopaedic surgical instruments used in joint arthroplasty. The handle is universal. The handle comprises a body having a proximal end, a distal end, and an open-ended channel extending between the distal end and the proximal end. The channel is configured for receiving a shaft of a first orthopaedic instrument such that the shaft extends completely through the handle, and the handle is in a sliding relationship with the shaft. The channel is also configured for separately and independently receiving a handle-attachment portion located at a proximal end of a second orthopaedic surgical instrument such that the handle and the second orthopaedic surgical instrument are held in a fixed relationship.
A surgical instrument system includes a commonly-sized orthopaedic surgical instrument assembly for use in implanting a femoral component, along with a number of orthopaedic surgical instrument assemblies having varying sizes of instruments of use in implanting a tibial tray component and a patella component.
A61F 2/46 - Outils particuliers pour l'implantation des articulations artificielles
A61B 17/17 - Dispositifs de guidage pour les forets
A61F 2/00 - Filtres implantables dans les vaisseaux sanguinsProthèses, c.-à-d. éléments de substitution ou de remplacement pour des parties du corpsAppareils pour les assujettir au corpsDispositifs maintenant le passage ou évitant l'affaissement de structures corporelles tubulaires, p. ex. stents
An apparatus and method for aligning an acetabular cup. The apparatus may include an acetabular cup and/or a protractor and/or a depth gauge tool and may be provided in the form of a surgical kit. Components of the apparatus may allow an angle of rotation of an acetabular cup about an axis of the cup relative to an anatomical feature of a patient to be determined when the acetabular cup implant is placed in the acetabulum of the patient. Components of the apparatus may allow an amount of overhang between a rim of an acetabular cup and an edge of the acetabulum to be determined. The acetabular cup may be an acetabular trial cup or and acetabular cup implant. Embodiments of the invention may allow both the angle of rotation about the cup axis and the amount of overhang between the rim and the acetabulum edge to be determined.
A61F 2/46 - Outils particuliers pour l'implantation des articulations artificielles
A61B 17/56 - Instruments ou procédés chirurgicaux pour le traitement des os ou des articulationsDispositifs spécialement adaptés à cet effet
A61B 17/58 - Instruments ou procédés chirurgicaux pour le traitement des os ou des articulationsDispositifs spécialement adaptés à cet effet pour ostéosynthèse, p. ex. plaques, vis ou matériels de fixation
A61F 2/42 - Articulations pour les poignets ou les chevillesArticulations pour les mains, p. ex. pour les doigtsArticulations pour les pieds, p. ex. pour les orteils
Kits and methods for use in intraoperative trialling of hip prostheses to determine an appropriate length for the femoral neck component of a prosthetic hip joint, are described. A kit for use in selecting a femoral neck component of an orthopaedic joint prosthesis kit comprises a first and a second broach. Each of the first and second broaches has a neck connection element comprising a projection extending from a proximal surface of the broach, each projection having a length. The projection on the first broach has a different length than the projection on the second broach. The kit also includes a trial femoral neck component having a neck connection element in the form of a recess in a distal surface. The recess is configured to mate with the projection on each of the first or second broaches such that mating of the trial femoral neck component with the first broach provides an assembly with a first neck length, and the mating of the trial femoral neck component with the second broach provides an assembly with a second neck length.
Apparatus, systems, and methods for determining a position of a hip prosthesis in a bone of a patient are disclosed. One method for planning an orthopaedic surgical procedure may comprise determining a first set of target orientations for an acetabular cup of the hip prosthesis when the femoral prosthesis of the hip prosthesis is oriented at a first version, determining a second set of target orientations for the acetabular cup when the femoral prosthesis is oriented at a second version different from the first version, displaying a first graphical user interface (GUI) that comprises a first graphic representing the first set of target orientations for the acetabular cup, receiving a user input, and, in response to the input, displaying a second GUI that comprises a second graphic representing the second set of target orientations for the acetabular cup.
A61F 2/46 - Outils particuliers pour l'implantation des articulations artificielles
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
37.
APPARATUS, SYSTEM, AND METHOD FOR DETERMINING A POSITION OF A HIP PROSTHESIS IN A BONE OF A PATIENT
Apparatus, systems, and methods for determining a position of a hip prosthesis in a bone of a patient are disclosed. One method for planning an orthopaedic surgical procedure may comprise determining a first set of target orientations for an acetabular cup of the hip prosthesis when the femoral prosthesis of the hip prosthesis is oriented at a first version, determining a second set of target orientations for the acetabular cup when the femoral prosthesis is oriented at a second version different from the first version, displaying a first graphical user interface (GUI) that comprises a first graphic representing the first set of target orientations for the acetabular cup, receiving a user input, and, in response to the input, displaying a second GUI that comprises a second graphic representing the second set of target orientations for the acetabular cup.
A method, apparatus, and system for balancing a patient's knee joint during an orthopaedic surgical procedure includes measuring a conductance of a medial collateral ligament and a lateral collateral ligament of the patient's knee joint and balancing the tension of the medial and lateral collateral ligaments based on the measured conductance. The tension of the medial and lateral collateral ligaments may be balanced by reducing a difference between the measured conductance.
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 5/053 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps
A61B 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
A61F 2/46 - Outils particuliers pour l'implantation des articulations artificielles
A surgical rotational tool driver and method. The driver includes a driveline extending within a hollow shaft and a head part including connection features for connecting to a connection member of a surgical rotational tool. The connection features of the head part include a housing and a pair of jaw member each including jaws for receiving the connection member. Each jaw member is pivotally mounted for rotation between: a first position for receipt of the connection member and a second position for retaining the connection member. The connection features of the head part further include a locking mechanism including a pair of catches for engaging with a respective catch of each jaw member to lock the jaw members in the second position. The locking mechanism also includes a release member slideably moveable within the housing to release the catches of the locking mechanism from the catches of the jaw members.
A method for designing a uni-compartmental orthopaedic prosthesis includes generating a three-dimensional statistical model of a knee joint, determining a curvature of a section of a bone of the knee joint represented by the three-dimensional statistical model, and designing a section of the uni-compartmental orthopaedic prosthesis corresponding to the section of the bone of the knee joint to have a curvature that matches the curvature of the section of the bone of the knee j oint. Additionally, a tibial (104) and femoral (102) uni compartmental orthopaedic prosthesis are also disclosed, each of which includes a section having a curvature that matches a corresponding section of a corresponding bone of the knee joint represented by the three-dimensional statistical model.
A method for designing a uni-compartmental orthopaedic prosthesis includes generating a three-dimensional statistical model of a knee joint, determining a curvature of a section of a bone of the knee joint represented by the three-dimensional statistical model, and designing a section of the uni-compartmental orthopaedic prosthesis corresponding to the section of the bone of the knee joint to have a curvature that matches the curvature of the section of the bone of the knee joint. Additionally, a tibial and femoral uni-compartmental orthopaedic prosthesis are also disclosed, each of which includes a section having a curvature that matches a corresponding section of a corresponding bone of the knee joint represented by the three-dimensional statistical model.
A femur-first orthopaedic surgical procedure may include using a surgical navigation system to perform one or more initial measurements on a femur of a patient, a tibia of the patient, or both and to develop a surgical plan for the orthopaedic surgical procedure based on the one or more initial measurements, performing a first resection of the femur, using the surgical navigation system to perform one or more later measurements of the tibia that were inaccessible prior to the first resection of the femur and to confirm the surgical plan based on the one or more later measurements of the tibia, performing a tibial resection of the tibia based on a planned tibial resection plane of the surgical plan after confirming the surgical plan, and performing additional resections of the femur based on planned femoral resection planes of the surgical plan after confirming the surgical plan.
Provisional alignment tools and associated methods for computer-assisted orthopaedic surgical procedures are disclosed. One such method comprises pinning a bone tracking assembly to a patient's bone, attaching a provisional alignment tool to the bone tracking assembly such that the provisional alignment tool maintains a cutting guide attached to the provisional alignment tool in an initial position, receiving feedback from a surgical navigation system regarding a difference between the initial position and a planned position for the cutting guide in a surgical plan for the orthopaedic surgical procedure, adjusting one or more components of the provisional alignment tool to move the cutting guide into the planned position, pinning the cutting guide to the patient's bone while the provisional alignment tool maintains the cutting guide in the planned position, and cutting the patient's bone while the bone tracking assembly remains pinned to the patient's bone.
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
48.
PROVISIONAL ALIGNMENT TOOLS AND METHODS FOR COMPUTER-ASSISTED ORTHOPAEDIC SURGICAL PROCEDURES
Provisional alignment tools and associated methods for computer-assisted orthopaedic surgical procedures are disclosed. One such method comprises pinning a bone tracking assembly to a patient's bone, attaching a provisional alignment tool to the bone tracking assembly such that the provisional alignment tool maintains a cutting guide attached to the provisional alignment tool in an initial position, receiving feedback from a surgical navigation system regarding a difference between the initial position and a planned position for the cutting guide in a surgical plan for the orthopaedic surgical procedure, adjusting one or more components of the provisional alignment tool to move the cutting guide into the planned position, pinning the cutting guide to the patient's bone while the provisional alignment tool maintains the cutting guide in the planned position, and cutting the patient's bone while the bone tracking assembly remains pinned to the patient's bone.
An orthopaedic joint replacement system is shown and described. The system includes a number of prosthetic components configured to be implanted into a patient's knee. The system also includes a number of surgical instruments configured for use in preparing the bones of the patient's knee to receive the implants. A number of methods for using the surgical instruments to prepare the bones is also disclosed.
A navigation tracker connection interface system, including: a first interface including: a first interface surface; an extension member having a first extension ramp surface facing the first side; and an interface hole on the side of the first interface; and a second interface including: a housing including: a second interface surface; an interface pin; a housing opening; and a channel; a locking member configured to slide in the channel including: a locking member opening; and a first locking member ramp surface; and a biasing member configured to bias the locking member, wherein interface hole is configured to receive the interface pin, wherein the first interface surfaces are configured to engage the second interface surfaces, and wherein the first locking member ramp surface is configured to engage the first extension ramp surface when the biasing member biases the locking member.
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 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A total knee implant prosthesis is disclosed. The total knee implant prosthesis includes a tibial component including a pair of bearing surfaces and a post positioned between the bearing surfaces, and a femoral component configured to rotate relative to the tibial component. The femoral component includes a pair of condyles sized and shaped to articulate on the bearing surfaces and a cam positioned between the pair of condyles. The cam engages the post at a first contact point when the femoral component is at 0 degrees of flexion and engages the post at a second contact point located lateral of the first contact point when the femoral component is at a first degree of flexion greater than 0 degrees. The cam is disengaged from the post when the femoral component is at a second degree of flexion greater than the first degree of flexion.
A navigation tracker connection interface system, including: a first interface including: a first interface surface; an extension member having a first extension ramp surface facing the first side; and an interface hole on the side of the first interface; and a second interface including: a housing including: a second interface surface; an interface pin; a housing opening; and a channel; a locking member configured to slide in the channel including: a locking member opening; and a first locking member ramp surface; and a biasing member configured to bias the locking member, wherein interface hole is configured to receive the interface pin, wherein the first interface surfaces are configured to engage the second interface surfaces, and wherein the first locking member ramp surface is configured to engage the first extension ramp surface when the biasing member biases the locking member.
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
53.
APPARATUS AND METHOD FOR INSTALLING AN ACETABULAR LINER ON AN ACETABULAR CUP
An acetabular prosthesis assembly includes an acetabular shell component and an acetabular bearing component. The shell component includes a concave inner wall having a tapered surface with multiple anti-rotation slots defined therein. The bearing component includes a convex outer wall as well as an annular flange and multiple anti-rotation keys extending radially outward from the outer wall. When the anti-rotation keys are positioned in rotational alignment with the anti-rotation slots, the flange of the bearing component is positioned in contact with the tapered surface of the shell component. When the anti-rotation keys are positioned out of rotational alignment with the anti-rotation slots, the flange is spaced apart from the tapered surface. Methods for assembling and using the acetabular prosthesis assembly are also disclosed.
A data processing method, data processing apparatus and method for assessing the posterior cruciate ligament length for a knee replacement procedure are described. The loaded displacement and unloaded displacement between a tibia and a femur in the anterior-posterior direction are measured at a plurality of knee angles. An estimate of the maximum length of the posterior cruciate ligament for the plurality of knee angles is made using the loaded displacement. A planned knee joint separation between the tibia and the femur is determined from planned tibial and femoral implant positions and said unloaded displacement. An estimate of the required length of the posterior cruciate ligament for the plurality of knee angles is determined from the planned knee joint separation. A comparison of the estimate of the required length of the posterior cruciate ligament and an estimate of the maximum length of the posterior cruciate ligament is output as a function of knee angle.
A61F 2/46 - Outils particuliers pour l'implantation des articulations artificielles
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
G16H 20/40 - TIC spécialement adaptées aux thérapies ou aux plans d’amélioration de la santé, p. ex. pour manier les prescriptions, orienter la thérapie ou surveiller l’observance par les patients concernant des thérapies mécaniques, la radiothérapie ou des thérapies invasives, p. ex. la chirurgie, la thérapie laser, la dialyse ou l’acuponcture
An apparatus, system, and method for compensating for bone loss of a patient's knee joint during the performance of an orthopaedic surgical procedure includes determining an estimated amount of bone loss of a bone of a patient's knee joint, determining an anatomical distance between a femoral anatomical feature of a patient's femur and a tibial anatomical feature of a patient's tibia, and adjusting the determined anatomical distance based on the estimated amount of bone loss. The determined anatomical distance is indicative of a ligament length of a collateral ligament of the patient's knee joint. The bone loss may be estimated based on, for example, a surface curve fitting algorithm applied to a three-dimensional model of the bone, a defined bone loss amount provided by a user, or a comparison of the three-dimensional model of the bone to a statistical shape model that approximates the bone in a healthy state.
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
A61B 17/56 - Instruments ou procédés chirurgicaux pour le traitement des os ou des articulationsDispositifs spécialement adaptés à cet effet
A61F 2/46 - Outils particuliers pour l'implantation des articulations artificielles
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
59.
HINGED ORTHOPAEDIC PROSTHESIS SYSTEM HAVING CONTROLLED CURVATURE
A hinged orthopaedic prosthesis system (400) includes a hinged femoral component (402), a housing assembly (408), and a tibial component (490). The hinged femoral component is configured to be coupled to the housing assembly such that the hinged femoral component is capable of rotation about a flexion-extension axis of rotation (470). The tibial component is configured to be coupled includes a tibial articular surface (444) on which a femoral articular surface (410) of the hinged femoral component articulates when rotated about the flexion-extension axis of rotation. Additionally, the femoral articular surface includes a curved surface section (802) having a constant radius of curvature (R1) through a defined range of flexion of the hinged femoral component.
An orthopaedic knee prosthesis includes a tibial insert (104) including a post (150). The post of the tibial insert includes features that facilitate the medial pivoting of a femoral component through a range of flexion.
An orthopaedic knee prosthesis includes a femoral component and a tibial insert including a post. The femoral component is configured to articular on the tibial insert. The post of the tibial insert includes features that facilitate the medial pivoting of the femoral component through a range of flexion.
A hinged orthopaedic prosthesis system includes a hinged femoral component, a housing assembly, and a tibial component. The hinged femoral component is configured to be coupled to the housing assembly such that the hinged femoral component is capable of rotation about a flexion-extension axis of rotation. The tibial component is configured to be coupled includes a tibial articular surface on which a femoral articular surface of the hinged femoral component articulates when rotated about the flexion-extension axis of rotation. Additionally, the femoral articular surface includes a curved surface section having a constant radius of curvature through a defined range of flexion of the hinged femoral component.
An apparatus, system, and method for compensating for bone loss of a patient's knee joint during the performance of an orthopaedic surgical procedure includes determining an estimated amount of bone loss of a bone of a patient's knee joint, determining an anatomical distance between a femoral anatomical feature of a patient's femur and a tibial anatomical feature of a patient's tibia, and adjusting the determined anatomical distance based on the estimated amount of bone loss. The determined anatomical distance is indicative of a ligament length of a collateral ligament of the patient's knee joint. The bone loss may be estimated based on, for example, a surface curve fitting algorithm applied to a three-dimensional model of the bone, a defined bone loss amount provided by a user, or a comparison of the three-dimensional model of the bone to a statistical shape model that approximates the bone in a healthy state.
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
64.
ACETABULAR REAMER HANDLE AND METHOD OF REAMING AN ACETABULUM
An acetabular reamer handle including a shaft having a distal end, a neck part having a longitudinal axis, a driveline extending through the shaft and the neck part, and a locking mechanism. A distally located head part of the driveline is mounted for rotation about the longitudinal axis of the neck part and is connectable to a reamer. The distal end of the shaft and a proximal end of the neck part are pivotally attached to allow the shaft to be tilted relative to the longitudinal axis. The tilting can allow part of the acetabulum and/or reamer that is otherwise obscured to be viewed. The locking mechanism includes an engagement member having an engagement surface located at the distal end of the shaft. The engagement member is moveable distally to urge the engagement surface against the proximal end of the neck part.
A surgical instrument in particular a retractor configured to be manually operated by a user's thumb and fingers. In particular, a pair of handles may be grasped by the thumb and fingers and actuated relative to one another to exert force to first and second output elements to provide retraction of for example a surgical site.
An orthopaedic surgical instrument system includes a sterilization tray for storage of orthopaedic surgical instruments during sterilization and transport thereof. The sterilization tray has a masking layer disposed on the upper surface of its bottom wall.
The present disclosure relates to a system for guiding a surgical tool (1) comprising an operative axis with respect to an anatomical structure according to a planned trajectory defined by a target axis (T), comprising: —a robotic device (100) comprising: o an end effector (10) comprising the surgical tool or configured to be coupled to the surgical tool; o an actuation unit (11) comprising at least three motorized degrees of freedom; o a planar articulation (12) coupling the end effector (10) to the actuation unit (11), the planar articulation being configured to constrain movement of the operative axis (R) of the surgical tool inside a single plane; —a localization device (200) configured to determine in real time a position and orientation of the operative axis (R) with respect to a coordinate system of the anatomical structure; —a user interface (300); —a control unit (400) coupled to the localization device (200), the actuation unit (11) and the user interface (300); wherein the control unit (400) is configured to: —based on the planned trajectory and on localization data from the localization device, determine a position and orientation of the operative axis (R) relative to a plane containing the target axis (T); —control the actuation unit to constrain the operative axis (R) inside the plane containing the target axis (T) while a user moves the end effector (10) closer to the target axis (T); —generate by the user interface (300) at least one signal related to the position and orientation of the operative axis (R) relative to the target axis (T).
A61B 17/16 - Instruments pour réaliser une ostéoclasieForets ou ciseaux pour osTrépans
A61B 34/00 - Chirurgie assistée par ordinateurManipulateurs ou robots spécialement adaptés à l’utilisation en chirurgie
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
An orthopaedic surgical instrument system includes a sterilization tray for storage of orthopaedic surgical instruments during sterilization and transport thereof. The sterilization tray has a masking layer disposed on the upper surface of its bottom wall.
Systems and methods for bone surface geometry generation include a computing device. The computing device projects first geometry data indicative of a first bone-contacting surface of a first bone of a patient to a coordinate space of a second bone of the patient to generate projected geometry. The second bone includes a second bone-contacting surface that interfaces with the first bone-contacting surface. The computing device also maps the projected geometry to a plurality of poses in a range of motion of the first bone relative to the second bone using position data indicative of relative positions of the first bone and the second bone at the plurality of poses in the range of motion. The computing device further selects intersecting geometry from the mapped, projected geometry to generate second geometry data indicative of the second bone-contacting surface.
Systems and methods for bone surface geometry generation include a computing device. The computing device projects first geometry data indicative of a first bone-contacting surface of a first bone of a patient to a coordinate space of a second bone of the patient to generate projected geometry. The second bone includes a second bone-contacting surface that interfaces with the first bone-contacting surface. The computing device also maps the projected geometry to a plurality of poses in a range of motion of the first bone relative to the second bone using position data indicative of relative positions of the first bone and the second bone at the plurality of poses in the range of motion. The computing device further selects intersecting geometry from the mapped, projected geometry to generate second geometry data indicative of the second bone-contacting surface.
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
A61B 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
71.
ACETABULAR PROSTHESIS WITH ADJUSTABLE ACETABULAR CUP CAGES
An acetabular prosthesis for use in a hip arthroplasty surgical procedure includes an acetabular cup cage assembly including an outer cup cage and an inner cup cage. The outer cup cage includes a hemispherical cup and a mounting flange. Similarly, the inner cup cage also includes a hemispherical cup and a corresponding mounting flange. The hemispherical cup of the inner cup cage is sized to be received into the hemispherical cup of the outer cup cage, and the two cup cages are rotatable relative to each other to position the mounting flanges into a desired position on a hip bone of a patient.
A glenoid implant includes a baseplate, a pair of bone screws, and an augmentation member. The baseplate includes a plurality of screw holes with the pair of bone screws being positioned in two of the screw holes and the augmentation member being positioned in a third screw hole. The augmentation member includes a non-threaded post configured to abut the bottom of a bone defect. A method of installing a glenoid implant during an orthopaedic surgical procedure is also disclosed.
A glenoid implant of a shoulder prosthesis includes a baseplate having a shaft coupled to, and extending from a bottom surface, of its plate. The plate includes a peripheral ring extending downwardly away from, and circumferentially around, its bottom surface. The exterior surfaces of the peripheral ring have threads formed therein. A method of installing a glenoid implant during an orthopaedic surgical procedure is also disclosed.
A glenoid implant (100) includes a baseplate, a pair of bone screws (150), and an augmentation member (160). The baseplate includes a plurality of screw holes (210) with the pair of bone screws being positioned in two of the screw holes and the augmentation member being positioned in a third screw hole. The augmentation member includes a non-threaded post (168) configured to abut the bottom of a bone defect.
A glenoid implant of a shoulder prosthesis includes a baseplate (100) having a shaft (140) coupled to, and extending from a bottom surface (106), of its plate. The plate includes a peripheral ring (130) extending downwardly away from, and circumferentially around, its bottom surface. The exterior surfaces (134) of the peripheral ring have threads (136) formed therein.
The invention provides a surgical apparatus for performing a controlled resection of the neck of a femur during a hip replacement procedure, the surgical apparatus comprising: a body portion. The body portion comprises a frame that is mountable on a femoral head of the femur to position the body portion with respect to a centre of the femoral head. The body portion also includes a resection guide for indicating a position of a resection plane on the femoral neck, and an arm extending from the frame and including markings for reading off a femoral head offset. The apparatus also includes a connector for mounting the body portion on an intramedullary rod located in an intramedullary canal of the femur, and for slidably receiving the arm. The connector includes a pointer. The femoral head offset is indicated by reading the position of the pointer relative to the markings on the arm.
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
A unicondylar balancer (10) for knee surgery and a method of knee surgery. The balancer includes a first body portion (6) including a first jaw (2). The balancer also includes a second body portion (8) slideably attached to the first body portion, the second body portion comprising second jaw (4). The balancer further includes an adjustment mechanism selectively to distance the first jaw from the second jaw. The adjustment mechanism includes a threaded collar (20) captured in a slot (26) in the second body portion, and a threaded rod (30). The first body portion is coupled to the threaded rod via a biasing element (50), which biases the first jaw away from the second jaw. The balancer further includes a manually operable locking mechanism (140), to lock the first body portion with respect to the second body portion.
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
78.
Baseplate of a modular shoulder joint prosthesis and related methods for implanting the same
Shoulder joint implants are disclosed herein for use in shoulder reconstruction that are configured to facilitate the inclusion a central bone screw for augmented bone fixation. The implant can include a baseplate (or metaglene) configured to secure a glenosphere or other prosthetic component to the glenoid. To facilitate lateral or proximal insertion of a central bone screw through the implant, a throughbore defined along the central axis of the metaglene can be widened to accommodate the maximum diameter of the screw. To enable fixation of the glenosphere to the metaglene, a collet can be configured to engage the smaller diameter of a glenosphere coupling element and inserted into the central throughbore. The collet and the bone screw can be separate parts, thereby making insertion of the bone screw optional. Alternatively, the collet and bone screw can be integrated together to form a unitary construct.
Systems and methods for an orthopaedic surgical procedure include a surgical instrument adapter having an elongated body with a slot define in one end and a lug positioned on the other end. The slot is sized to receive the pointer end of a navigated pointer instrument such that the pointer end is held in a predetermined position relative to the surgical instrument adapter. A method for performing the orthopaedic surgical procedure includes inserting the pointer end of the navigated pointer instrument into the slot of the adapter, inserting the lug of the adapter into a hole defined in a surgical guide instrument, positioning the surgical guide instrument on a surgically prepared surface of a patient's bone, and determining a position of the navigated pointer instrument using a surgical navigation system. By way of example, the surgical guide instrument may be a femoral finishing block or a tibial template.
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
Reamer instruments and related methods are disclosed for use in preparing bone, such as a glenoid bone surface, to receive an implant requiring one of two or more possible surface geometries. Described reamer instruments can have a modular or multi-component design. A minimal number of components can be particular to a particular required geometry, which can allow assembly and use of reamer instruments of the present disclosure to be flexible, intuitive, and efficient. In some embodiments, a disposable reamer head assembly can be driven by a disposable drive tip through a pin-on-pin connection. The remaining components of the reamer instrument can be sterilized and re-used. To prepare bone for a half-wedge implant, a half-wedge housing can be coupled to a reamer instrument handle and a depth stop can be coupled to the housing to achieve the required geometry. Alternatively, a full-wedge housing can be coupled to the instrument handle.
A robotic surgical system comprising a robotic surgical apparatus and a graphical user interface (GUI) system may be used to assist a user in performing a surgical procedure. The GUI system may comprise a spatial-data acquisition device, a data acquisition device having a pointer with a tip, a display, and an operating console including a non-transitory storage medium and a processor. The robotic surgical apparatus, the spatial-data acquisition device, the display, and the non-transitory storage medium may be connected to the processor. The processor may be configured to receive as inputs spatial data from the spatial-data acquisition device and provide as outputs to the display a set of indications for positioning the robotic surgical apparatus at the anatomical target. The processor may also be configured to provide as outputs to the display a set of indications for confirming the reference surface location of the anatomical structure.
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
B25J 13/06 - Postes de commande, p. ex. pupitres, tableaux de contrôle
G06F 3/0481 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] fondées sur des propriétés spécifiques de l’objet d’interaction affiché ou sur un environnement basé sur les métaphores, p. ex. interaction avec des éléments du bureau telles les fenêtres ou les icônes, ou avec l’aide d’un curseur changeant de comportement ou d’aspect
G06T 7/70 - Détermination de la position ou de l'orientation des objets ou des caméras
H04N 23/20 - Caméras ou modules de caméras comprenant des capteurs d'images électroniquesLeur commande pour générer des signaux d'image uniquement à partir d'un rayonnement infrarouge
82.
IMPROVEMENTS IN AND RELATING TO JOINT PROSTHESES, KITS AND METHODS OF USE
An acetabular component of an orthopaedic joint prosthesis which has an outer shell for mounting on the acetabulum; a liner provided at least partially within the outer shell for providing a contact surface for a femoral component of the orthopaedic joint prosthesis; and an adapter provided at least partially within the outer shell, where the liner is at least partially within the adapter. The adapter allows a wider range of liners to be used with a given shell.
An orthopaedic knee prosthesis (10) includes a femoral component having a metal base (84) with a polymer articular layer molded thereto. A method for making a metal-reinforced femoral component of an orthopaedic knee prosthesis is also disclosed.
An orthopaedic knee prosthesis includes a femoral component having a metal base with a polymer articular layer molded thereto. A method for making a metal-reinforced femoral component of an orthopaedic knee prosthesis is also disclosed.
Mounting systems for connection to a surgical device, kits including those and the surgical devices and methods of use are disclosed. The mounting system comprising; an elongate body having a proximal end and a distal end; an outer sleeve being provided towards the distal end of the elongate body, the outer sleeve defining an internal bore; an inner element with a distal end facing the internal bore, the inner element providing one or more arms that extend from the distal end of the inner element into the bore, the one or more arms being spaced from the outer sleeve to define a gap between a side of one or more of the arms and the outer sleeve, the inner element at least partially defining a second bore; a locking element slidably provided in the second bore, the locking element having a first state where the locking element is provided in a first position adjacent to a distal portion of one or more of the arms and a second state where the locking element is retracted from the first position adjacent to a distal portion of one or more of the arms.
A61B 17/16 - Instruments pour réaliser une ostéoclasieForets ou ciseaux pour osTrépans
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
B23B 31/117 - Caractérisés par les dispositifs de maintien ou de serrage ou par leurs moyens d'action directe le maintien étant assurée uniquement par friction, p. ex. en utilisant des ressorts, des manchons élastiques, des cônes
A surgical implant aperture insert (20) for use in a surgical implant system; and a surgical implant system for use in joint arthroplasty is provided including an aperture (8) and a surgical implant aperture insert. The insert increases the surface area of surgical components available for bone regrowth and can provide adaption means to allow the use of different fixings within the aperture.
Systems and methods are disclosed for computer aided surgery (CAS), comprising an augmented reality (AR) system configured to display augmented reality information, a position tracking system configured to track positions of objects, an instrument coupled to a tracker detectable by the position tracking system, and a controller configured to: display augmented reality information comprising an indicator of a cut on the bone that would be produced by a current orientation of the instrument and an indicator of a predetermined target plane for the cut, determine, as the instrument is moved, when the current orientation of the instrument is aligned with the predetermined target plane, and based on the determined alignment, display augmented reality information comprising an indicator representing that the current orientation of the instrument is aligned with the predetermined target plane. In some embodiments, the controller is further configured to display augmented reality information comprising an indicator of the axis of the bone.
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
A61B 90/50 - Supports pour instruments chirurgicaux, p. ex. bras articulés
A surgical implant aperture insert for use in a surgical implant system; and a surgical implant system for use in joint arthroplasty is provided including an aperture and a surgical implant aperture insert. The insert increases the surface area of surgical components available for bone regrowth and can provide adaption means to allow the use of different fixings within the aperture.
Systems and methods are disclosed for computer aided surgery (CAS), comprising an augmented reality (AR) system configured to display augmented reality information, a position tracking system configured to track positions of objects, an instrument coupled to a tracker detectable by the position tracking system, and a controller configured to: display augmented reality information comprising an indicator of a cut on the bone that would be produced by a current orientation of the instrument and an indicator of a predetermined target plane for the cut, determine, as the instrument is moved, when the current orientation of the instrument is aligned with the predetermined target plane, and based on the determined alignment, display augmented reality information comprising an indicator representing that the current orientation of the instrument is aligned with the predetermined target plane. In some embodiments, the controller is further configured to display augmented reality information comprising an indicator of the axis of the bone.
G06T 19/00 - Transformation de modèles ou d'images tridimensionnels [3D] pour infographie
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
G06V 10/74 - Appariement de motifs d’image ou de vidéoMesures de proximité dans les espaces de caractéristiques
Instrumentation and a method for unicompartmental knee replacement procedure are described. The surgical instrumentation may include a unicondylar posterior femoral cutting guide, a unicondylar tibial cutting block assembly and a unicondylar femoral cutting guide. The method may include inserting the unicondylar posterior femoral cutting guide into a joint gap while the knee is in flexion, resecting the posterior femoral condyle of the femur while the knee is in flexion, the surface of the resected posterior femoral condyle defining a reference plane, and setting the position of a unicondylar tibial cutting block on the tibia relative to the reference plane by using the resected surface of the posterior femoral condyle. The unicondylar femoral cutting guide may then be used to make one or more femoral cuts.
ORTHOPAEDIC SURGICAL INSTRUMENT AND SYSTEM FOR INSTALLING A CEMENTLESS FEMORAL STEM COMPONENT IN A DIRECT ANTERIOR APPROACH HIP REPLACEMENT SURGICAL PROCEDURE
An orthopaedic surgical system for use in a direct anterior approach orthopaedic surgical hip replacement procedure on a patient's femur includes a stem insertion instrument (12) having an offset locking shaft (68) to install a cementless femoral stem (14) component into a surgically-prepared intramedullary canal of a patient.
A set of surgical instruments adapted for cutting bone and tissue material for the preparation of a surgical site to receive a prosthesis. The set includes a plurality of distal reamers including subsets with differing diameter and common axial lengths and corresponding sets of proximal reamers of differing diameters and common axial lengths. A fully modular instrument cutting assembly is provided to allow conversion intra- operatively between different implant types.
ORTHOPAEDIC SURGICAL INSTRUMENT, SYSTEM, AND METHOD FOR INSTALLING A CEMENTLESS FEMORAL STEM COMPONENT IN A DIRECT ANTERIOR APPROACH HIP REPLACEMENT SURGICAL PROCEDURE
An orthopaedic surgical system for use in a direct anterior approach orthopaedic surgical hip replacement procedure on a patient's femur includes a stem insertion instrument having an offset locking shaft to install a cementless femoral stem component into a surgically-prepared intramedullary canal of a patient. A method of installing a cementless femoral stem component during performance of a direct anterior approach orthopaedic surgical hip replacement procedure is also disclosed.
Systems and methods are disclosed comprising receiving positional information comprising a plurality of acquired data points associated with a surface of an anatomical feature of a patient, determining a point cloud based on the plurality of data points, extracting a point from the plurality of data points as indicating a landmark on the anatomical feature, determining a boundary associated with the plurality of data points, comparing a distance between the boundary and the landmark point to a predetermined threshold, wherein if the distance between the boundary and the landmark point is not within the predetermined threshold, generating an indication requiring confirmation of the landmark point or a suggestion to acquire additional data points.
Systems and methods are disclosed comprising receiving positional information comprising a plurality of acquired data points associated with a surface of an anatomical feature of a patient, determining a point cloud based on the plurality of data points, extracting a point from the plurality of data points as indicating a landmark on the anatomical feature, determining a boundary associated with the plurality of data points, comparing a distance between the boundary and the landmark point to a predetermined threshold, wherein if the distance between the boundary and the landmark point is not within the predetermined threshold, generating an indication requiring confirmation of the landmark point or a suggestion to acquire additional data points.
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
Systems and methods for planning and assisting orthopaedic surgical procedures include a computing device and a robotic surgical device. The computing device defines a surgical coordinate system relative to a bone of a patient and captures a plurality of point positions in the surgical coordinate system. The plurality of point positions includes a first point position representing a location on a soft tissue surface covering a portion of the patient's bone. The computing device identifies an estimated soft tissue thickness value for each of the plurality of point positions and registers a three-dimensional model of the patient's bone in the surgical coordinate system based on the plurality of point positions and the estimated soft tissue thickness values. The computer system may control the robotic surgical device according to the registered bone model.
A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales
A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
A tool for removal of a tibial implant a proximal end, and a distal end having an elongated cutting portion, wherein the elongated cutting portion has an edge sharpened for cutting extending a predetermined distance on a first side of the tool, around the distal end, and extending the predetermined distance on a second side of the tool. The tool is configured to release an implanted prosthesis by closely following the bone/implant interface. For example, the tools are used to cut around, dislodge, and remove a tibial component of a prosthetic knee. The edge is situated to be able to cut in many directions while inserted in the knee.
