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.
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.
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 2/00 - Filters implantable into blood vesselsProstheses, i.e. artificial substitutes or replacements for parts of the bodyAppliances for connecting them with the bodyDevices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. 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 - Special tools for implanting artificial joints
A61B 17/56 - Surgical instruments or methods for treatment of bones or jointsDevices specially adapted therefor
A61B 17/58 - Surgical instruments or methods for treatment of bones or jointsDevices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
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.
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 - Measuring for diagnostic purposes Identification of persons
A61B 5/053 - Measuring electrical impedance or conductance of a portion of the body
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A61F 2/46 - Special tools for implanting artificial joints
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, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A61B 34/20 - Surgical navigation systemsDevices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
24.
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, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A61B 17/00 - Surgical instruments, devices or methods
A61B 34/20 - Surgical navigation systemsDevices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
27.
PLAY-FREE FAST LOCKING NAVIGATION TRACKER CONNECTION
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.
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.
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.
G16H 20/40 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
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.
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.
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).
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 - Surgical navigation systemsDevices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
A61B 34/10 - Computer-aided planning, simulation or modelling of surgical operations
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
45.
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.
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.
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, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
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, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
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.
B25J 13/06 - Control stands, e.g. consoles, switchboards
G06F 3/0481 - Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
G06T 7/70 - Determining position or orientation of objects or cameras
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 for performing osteoclasisDrills or chisels for bonesTrepans
A61B 17/00 - Surgical instruments, devices or methods
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
B23B 31/117 - Retention by friction only, e.g. using springs, resilient sleeves, tapers
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.
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.
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.
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.
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.
A surgical instrument bolt for use with an orthopaedic prosthesis inserter includes a bolt head and a bolt shaft that extends away from the bolt head. The bolt shaft includes a threaded end and a shank located between the threaded end and the bolt head. The bolt shaft also includes an inner surface that defines an axial passageway that extends through at least a portion of the bolt shaft. In some embodiments, the axial passageway may extend completely through the bolt shaft and bolt head or may be embodied as a blind passageway in other embodiments.
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.
Systems, methods, and devices are described for high accuracy molded navigation arrays. In a first embodiment, a navigation array is formed by molding, as a single component, an array having a plurality of marker regions. The marker regions include a reflective layer disposed thereon. In other embodiments, a navigation array is formed by molding over a frame having a plurality of marker elements. In still other embodiments, a navigation array is formed by molding over individual marker elements. In certain embodiments, a navigation array is formed by molding a frame with a plurality of voids and subsequently molding marker elements into each void where the marker elements include a reflective layer disposed thereon. In some embodiments, a navigation array is formed by molding a plurality of marker elements on a frame and disposing a reflective layer on the marker elements.
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.
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 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
80.
Systems and methods for planning and assisting orthopaedic surgical procedures
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.
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.
A61B 34/10 - Computer-aided planning, simulation or modelling of surgical operations
A61B 34/00 - Computer-aided surgeryManipulators or robots specially adapted for use in surgery
A61B 34/20 - Surgical navigation systemsDevices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
82.
SYSTEMS AND METHODS FOR PLANNING AND ASSISTING ORTHOPAEDIC SURGICAL PROCEDURES
Systems and methods for planning and assisting orthopaedic surgical procedures include a computer system and a robotic surgical device. The computer system receives a set of target joint space values including a target extension space value and a target flexion space value. The computer system initializes a surgical plan including planned resection heights and determines a set of current joint space values based on the surgical plan. The computer system adjusts one or more planned resection heights of the surgical plan until the set of current joint space values matches the set of target joint space values. The computer system may control the robotic surgical device according to the surgical plan.
Systems and methods for planning and assisting orthopaedic surgical procedures include a computer system and a robotic surgical device. The computer system receives a set of target joint space values including a target extension space value and a target flexion space value. The computer system initializes a surgical plan including planned resection heights and determines a set of current joint space values based on the surgical plan. The computer system adjusts one or more planned resection heights of the surgical plan until the set of current joint space values matches the set of target joint space values. The computer system may control the robotic surgical device according to the surgical plan.
ORTHOPAEDIC SURGICAL INSTRUMENT, SYSTEM, AND METHOD FOR INSTALLING A CEMENTED 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 an insertion instrument having a depth stop with a rotatable guide arm to install a cemented femoral stem component at a desired depth. A method of installing a cemented femoral stem component during performance of a direct anterior approach orthopaedic surgical hip replacement procedure is also disclosed.
ORTHOPAEDIC SURGICAL INSTRUMENT, SYSTEM, AND METHOD FOR INSTALLING A CEMENTED 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 an insertion instrument having a depth stop with a rotatable guide arm to install a cemented femoral stem component at a desired depth. A method of installing a cemented femoral stem component during performance of a direct anterior approach orthopaedic surgical hip replacement procedure is also disclosed.
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.
An orthopaedic surgical system for use in a direct anterior approach orthopaedic surgical hip replacement procedure on a patient's femur includes a proximal guide instrument for guiding a flexible insertion instrument to install a cement restrictor component. A method of installing a cement restrictor component during performance of a direct anterior approach orthopaedic surgical hip replacement procedure is also disclosed.
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.
An orthopaedic surgical instrument (10) 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 (12) and a removable polymeric impaction insert (14).
An orthopaedic surgical system for use in a direct anterior approach orthopaedic surgical hip replacement procedure on a patient's femur includes a proximal guide instrument (14) for guiding a flexible insertion instrument (12) to install a cement restrictor component (16, 18). A method of installing a cement restrictor component during performance of a direct anterior approach orthopaedic surgical hip replacement procedure is also disclosed.
A tracking array tracking system, including: at least one processor; and at least one memory storing instructions, that when executed by the at least one processor, cause the tracking array system at least to: determine that one marker of a plurality of markers on a tracking array is obstructed to a camera system; identify marker lines on the tracking array; determine a location of the marker lines of the tracking array; and determine a location and orientation of the tracking array based upon the location of the marker lines
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.
Orthopaedic load generating instruments, such as head to liner presses, kits including such instruments and methods of using such instruments are provided. The surgical instrument comprising: a handle element (42); a driven element mounting section (44) connected to the handle element; one or more driven elements (48, 58), the one or more driven elements including a driven element providing a proximal driver attachment location (46), the one or more driven elements including a driven element providing a proximal implant component contactor (60); and an instrument support section (22), the instrument support section including a first abutment surface (30) and at least a second abutment surface (38); wherein the instrument has a driven axis (O-O), the driven axis corresponding to a driven element axis extending distally to proximally through one or more of the driven elements; wherein a first intersection defined between the driven axis and the first abutment surface forms a first angle and a second intersection defined between the driven axis and the second abutment surface forms a second angle, the second angle being different to the first angle. In this way, the instrument has a first state in which the driven axis has a first angular orientation relative to the vertical and the instrument has a second state in which the driven axis has a second, different, angular orientation relative to the vertical.
Implants, device, systems and methods for replacing an articulation surface in a joint, for example, shoulder prostheses with stemless humeral components or stemmed humeral components. Methods for using the shoulder prostheses with stemless humeral components or stemmed humeral components are also disclosed.
An implant removal tool used to remove a femoral implant from a femur bone by providing a substantially U-shaped body having a substantially rectangular-shaped opening located thereon that allows the substantially U-shaped body to be placed over a neck of a femoral implant so a sharpened front edge of the substantially U-shaped body makes direct contact with an inner surface of the stem of the femoral implant. The U-shaped body may have front side edges that extend beyond a front edge to allow the front side edges to cut anterior and posterior surface of the implant.
In some implementations, a connection interface assembly may include a handle, a connection interface, a locking mechanism, and an implant removal tool. The handle may include a proximal end, a distal end, and a cavity including an interior surface. The distal end may define a distal end opening that is in communication with the cavity. The locking mechanism may be disposed within the cavity of the handle and may be movable between a projected position and a retracted position. The implant removal tool may include a first end and a second end. The second end may form a locking interface element. The implant removal tool may be selectively engageable with the connection interface via an engagement and disengagement between the locking mechanism and the locking interface element.
