Knee Or Knee Joint Patents (Class 606/88)
  • Patent number: 11497509
    Abstract: A fixing clamp for an aligning device, and an aligning device that includes the fixing clamp, for clamping to a bodily extremity. The clamp includes a first clamp arm, a second clamp arm and a frame device having an attaching section for attaching to an adjustment rod. The first clamp arm is rotatably attached to a first rotary joint about a first axis of rotation, and the second clamp arm is rotatably connected to a second rotary joint about a second axis of rotation. A locking mechanism locks the first clamp arm and/or the second clamp arm relative to the frame device in at least one position, and blocks movement of the first or second clamp arm about the respective rotary joint in an open rotational direction.
    Type: Grant
    Filed: November 28, 2019
    Date of Patent: November 15, 2022
    Assignee: Aesculap AG
    Inventors: Martin Hirt, Anil Varsani, Thomas Hermle
  • Patent number: 11490900
    Abstract: An osteotomy assistance kit includes a bone treatment assistance device and an attaching position confirmation device. The attaching position confirmation device includes a feature point indication rod to be applied via a tip portion to a feature point of the bone, a rod support unit that removably supports the feature point indication rod such that the tip portion is indicating the feature point of the bone, and a second support member that movably supports the rod support unit and indicates one of scales on the rod support unit. The bone treatment assistance device includes cutting slits, and first guide holes that guides first rods set to a predetermined positional relation. The second support member of the attaching position confirmation device is attached to the protrusion of the bone treatment assistance device.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: November 8, 2022
    Inventors: Makoto Goto, Tsuyoshi Murase
  • Patent number: 11491016
    Abstract: An optimized press-fit between a resected bone and an articular implant may, for instance, reduce undesirable qualities, including excess micromotion, stress transmission, and/or strain. By taking into account heterogeneous bone properties, the parameters of a bone resection can be determined as to optimize the press-fit between a resected bone and an articular implant. An optimized press-fit is obtained by determining ideal engagement characteristics corresponding to the fit between the fixation features of an articular implant and a bone. Then, taking into account a bone's heterogeneous properties, the parameters of a bone resection that would substantially achieve the determined ideal engagement characteristics are determined.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: November 8, 2022
    Assignee: Stryker Corporation
    Inventor: Michael C. Ferko
  • Patent number: 11490936
    Abstract: A resection guide includes a first body portion and a second body portion. The first body portion has a first bone engagement structure and defines a first plurality of holes. The second body portion has a second bone engagement structure and defines a second plurality of holes. The first body portion and the second body portion are operable to separate a first anatomical structure of a patient and a second anatomical structure of the patient. A cutting guide defines at least one guide aperture that is operable for guiding a cutting tool for use in resecting a portion of the second anatomical structure of the patient. The cutting guide is positionable relative to the first body portion.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: November 8, 2022
    Assignee: WRIGHT MEDICAL TECHNOLOGY, INC.
    Inventors: Dean J. Nachtrab, David G. Reynolds, Paul M. Stemniski, Julia C. Alspaugh
  • Patent number: 11484326
    Abstract: According to one example, an adjustable cut guide for resecting a bone can include a base, a cam, an actuator, and an insert. The base can include a channel extending between a first end and a second end and a slot intersecting the channel. The cam can extend into the slot, and the cam can be coupled to the base within the slot to rotate between a first position and a second position. The actuator can be disposed in the slot, where the actuator can be translatable by rotation of the cam between an extended position when the cam is in the first position and a retracted position when the cam is in the second position. The insert can be disposed within the channel of the base and the insert can be secured relative to the base by the actuator when the actuator is in the extended position.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: November 1, 2022
    Assignee: ZIMMER GMBH
    Inventors: Daniel Greuter, Lukas Riedi
  • Patent number: 11471202
    Abstract: A system includes a first spacer sized and configured to be received within a resected bone space of a first bone and a second spacer sized and configured to be coupled to a second bone. The first spacer and the second spacer each include a body extending between a bone contacting surface and a coupling surface. At least one shim is positioned between the first and second spacers. The shim includes a body extending between a first coupling surface and a second coupling surface. The first spacer, the second spacer, and the at least one shim position the first and second bones in a predetermined alignment. An adjustable guide including a guide adapter and a guide body is configured to couple to the first spacer and is adjustable on a first axis.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: October 18, 2022
    Assignee: Wright Medical Technology, Inc.
    Inventors: Dean J. Nachtrab, David G. Reynolds, Paul M. Stemniski, Julia C. Alspaugh
  • Patent number: 11458010
    Abstract: A medical holding system and method are disclosed herein. The medical holding system, in an embodiment, includes a holder and a support device. The holder includes a grasper configured to be coupled to an end of an implantable element. The holder also includes a coupler having a coupler portion. The support device includes a release interface. The holder and the support device are configured to keep the implantable element suspended above a support surface throughout engagement and disengagement conditions of the coupler portion.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: October 4, 2022
    Assignee: United Health Services Hospitals, Inc.
    Inventor: Micah E. Lissy
  • Patent number: 11452622
    Abstract: A workstation having a pair of posts on either side of a clamping plate where a donor bone may be placed on sequentially cut in three separate cutting paths. Cutting gates are attached to the posts and used to provide cutting paths that can be precisely oriented with respect to the meniscus of the donor bone part using visual alignment without any manual measurements. The graft is affixed to a machining clamp and shaved to appropriately shape the sides and form a radius on the bottom of the graft. A tibia is then prepared by using a drill guide to form a pilot hole and then to drill out a large hole for the graft. The drilled hole is expanded and shaped using a rod guide and chisel and then a rasp. The shaped graft may then be implanted into the shaped hole and sutured in place.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: September 27, 2022
    Assignee: Conmed Corporation
    Inventors: Adrian E. Bosworth, Peter C. Miller
  • Patent number: 11439409
    Abstract: The invention relates to a cutting block for use in preparing a bone during orthopaedic surgery. The cutting block comprises a bone attachment face, and a front face opposing the bone attachment face. The cutting block further comprises at least a first group of bone pin holes, each hole being configured for removable receipt of a bone pin. The first group of pin holes includes at least two bone pin holes that extend between the bone attachment face and the front face. The at least two bone pin holes extend parallel to each other in an anterior-posterior direction. The at least two bone pin holes are offset from each other in at least one of a superior-inferior direction or a medial-lateral direction. The at least two bone pin holes are interconnected.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: September 13, 2022
    Assignee: DEPUY IRELAND UNLIMITED COMPANY
    Inventors: Michael Reeve, James Barnett
  • Patent number: 11432811
    Abstract: A joint distraction device includes a lever body, a foot extending from a bottom surface of the lever body, wherein the foot is coupled to the lever body via a hinge such that the lever body is rotatable relative to the foot, a first plate and a second plate extending from a distal portion of the lever body, wherein the first plate and the second plate are separated by a gap and wherein each of the first plate and the second plate comprise a stopper extending upwards from a top surface of the first plate and the second plate, and a force measurement device coupled to the bottom surface of the lever body and configured to measure a distraction force applied by the lever body at the foot during a joint distraction procedure in which a torque is applied at a proximal portion of the lever body.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: September 6, 2022
    Assignee: MAKO Surgical Corp.
    Inventor: Peter Ebbitt
  • Patent number: 11432826
    Abstract: A guidance system comprises a first guide configured to be detachably mounted to a first portion of a bone. The first guide has a first axis for alignment with a longitudinal axis of the first portion of the bone. A second guide is mountable on the first guide. The second guide is slidably translatable in a transverse direction relative to the first axis. A third guide is mountable on the second guide. The third guide is selectively positionable along a curved path extending at least part way around the longitudinal axis.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: September 6, 2022
    Assignee: WRIGHT MEDICAL TECHNOLOGY, INC.
    Inventors: Joseph Ryan Woodard, Brian Robert Thoren
  • Patent number: 11419684
    Abstract: A system for accessing extra articular lesions or abnormalities or intra osseous lesions or abnormalities or bone marrow lesions using intra articular localization has a guide, an arm, a pair of attachment assemblies and a tubular sleeve. The guide component has a first portion and a second portion. The first portion has a first slotted opening extending a length from a first end. The second portion has an arcuate curvature extending from the first portion to a second end of the guide component with an elongated second arcuate slot in the second portion. The first attachment assembly is configured to be movably adjustable within the length of the first slotted opening. The second attachment assembly is configured to be movably adjustable along the elongated second arcuate slot.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: August 23, 2022
    Inventor: Rajiv D. Pandya
  • Patent number: 11406400
    Abstract: Methods and apparatuses including apparatuses that can be used in a unicompartmental knee replacement procedure, a bicompartmental knee replacement procedure comprised of two unicompartmental knee replacements, a knee replacement procedure that utilizes a single femoral component and two unicompartmental tibial components, and other types of knee replacement procedures are disclosed. According to one example, an apparatus for guiding a tibial bone cut during knee replacement surgery is disclosed. The apparatus can comprise a mounting portion and a cutting portion. The mounting portion can be configured to couple with an alignment mechanism. The cutting portion can be connected to the mounting portion and can define a capture for a proximal cut. The cutting portion can have an aperture disposed adjacent a first end of the capture.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: August 9, 2022
    Assignee: Zimmer, Inc.
    Inventors: Nolan C. Jones, Lindsey R. Rolston, Jeffery A. VanDiepenbos, Brian D. Earl, Anthony Romano, Andrew Freiberg
  • Patent number: 11399850
    Abstract: A surgical device includes a body having a first side with a first surface that is complementary to a surface of a foreign object disposed within a patient based on preoperative imaging of the patient. The body defines at least one hole positioned relative to the body to facilitate insertion of an elongate device at a predetermined location relative to the foreign object.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: August 2, 2022
    Assignee: WRIGHT MEDICAL TECHNOLOGY, INC.
    Inventors: Paul M. Stemniski, David G. Reynolds
  • Patent number: 11376018
    Abstract: An adjustable revision guide for femoral resections comprising a translating stem adaptor, a distal end of the translating stem adaptor configured to selectively attach to a femoral trial/resection guide. The translating stem adaptor configured to selectively translate the femoral trial/resection guide proximally-distally. A proximal end of the translating stem adaptor configured to selectively attach to an offset adaptor of an intramedullary rod. The translating stem adaptor configured to allow for selective locking of rotation of the offset adapter on the translating stem adaptor to thereby lock-in a selected offset. A femoral trial/resection guide selectively attached to the distal end of the translating stem adaptor for use in resecting said distal femur. An intramedullary rod attached to the proximal end of the translating stem adaptor via an offset adaptor on a distal end.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: July 5, 2022
    Assignee: MicroPort Orthopedics Holdings Inc.
    Inventor: Daniel Lee
  • Patent number: 11344420
    Abstract: The present invention relates to a modular knee prosthesis assembly kit for replacement of resected articular surfaces of a distal femur of a first patient side. The kit comprises at least one bi-condylar component sized and shaped to substantially replace resected posterior and distal condylar bone portions; and at least a first trochlear groove component and a second trochlear groove component, each sized and shaped to replace a resected trochlear groove bone portion. The first trochlear groove component comprises a first patella articulation path defining a first trochlear groove direction angle. The second trochlear groove component comprises a second patella articulation path defining a second trochlear groove direction angle. An assembly of the bi-condylar component and one of the first and second trochlear groove components forms a substantially complete femoral knee prosthesis. The second trochlear groove direction angle is different from the first trochlear groove direction angle.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: May 31, 2022
    Inventor: Stefan Eggli
  • Patent number: 11344352
    Abstract: A method of operating a surgical instrument for use in a knee replacement surgical procedure includes assembling a ligament balancer instrument assembly by selecting from a number of differently sized tibial paddles and femoral paddles and thereafter securing the assembled ligament balancer instrument assembly to a distraction instrument.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: May 31, 2022
    Assignee: DEPUY IRELAND UNLIMITED COMPANY
    Inventors: Steven Kitch, Jeremy Oden, Graeme John Dutton, Takayuki Nakamura, Kevin Cooney
  • Patent number: 11324607
    Abstract: This surgical ankle repair method comprises the steps of providing an instrumentation assembly for positioning an ankle prosthesis, the instrumentation assembly including a talar alignment instrument and a cutting block, the talar alignment instrument comprising a front portion and two fins extending from the ends of the front portion, said fins being adapted to be positioned in gutters extending below a tibia of a patient and around a trochlea of a talus of the patient, each fin including a reference marker, the cutting block comprising a tibial alignment structure and a recess which engages a protrusion provided on the talar alignment instrument, positioning the talar alignment instrument such that the fins are disposed in the gutters extending below the tibia and around the trochlea of the talus; aligning the talar alignment instrument so that the fins are parallel to the rotational plane of the talus, perpendicular to the rotational axis of the talus, and so that the reference markers are aligned with a l
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: May 10, 2022
    Assignee: HOWMEDICA OSTEONICS CORP.
    Inventors: Richard Garret Mauldin, Yann Brunnarius, Delphine Henry
  • Patent number: 11317930
    Abstract: Methods and devices for performing knee arthroplasty including but not limited to bicruciate retaining knee arthroplasty are provided. Methods and devices for preparing a proximal tibia for a tibial implant are also provided. These methods and devices, in at least some embodiments and uses, facilitate decreasing the complexity of knee arthroplasty procedures such as bicruciate retaining procedures while maintaining, if not improving on, the safety, accuracy and/or effectiveness of such procedures.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: May 3, 2022
    Assignee: Smith & Nephew, Inc.
    Inventor: Zachary Christopher Wilkinson
  • Patent number: 11304823
    Abstract: Instruments, devices, systems and methods for maintaining, correcting and/or fusing joint deformities are disclosed. The system includes a first translation mechanism, a second translation mechanism coupled to the first translation mechanism, and a third translation mechanism coupled to the second translation mechanism. Methods of assembling and using the alignment guides for maintaining, correcting and/or fusing joint deformities are also disclosed.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: April 19, 2022
    Assignee: Paragon 28, Inc.
    Inventor: Daniel J. Lee
  • Patent number: 11253270
    Abstract: Disclosed is an osteotomy device, comprising an osteotomy plate (10), a fixing plate (20) and an adjusting structure (30), wherein the osteotomy plate (10) is mounted on a femur (B) via the fixing plate (20), two ends of the adjusting structure (30) are respectively connected to the fixing plate (20) and the osteotomy plate (10), and the osteotomy plate (10) slides left and right relative to the fixing plate (20) via the adjusting structure (30); and the osteotomy plate (10) has a femoral osteotomy groove (11) for performing an osteotomy from four sides and a femoral trochlear osteotomy groove (12) for performing femoral trochlear osteotomy.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: February 22, 2022
    Inventors: Yandong Sun, Fangqiu Hu, Kaiyu Zhao, You Wu
  • Patent number: 11246603
    Abstract: An instrument for setting a position of a resection of a distal femur or a proximal tibia in a total knee arthroplasty, the instrument comprising: a stable portion, the stable portion configured for orientation in a set position relative to said distal femur or said proximal tibia; a resection guide portion, the resection guide portion configured to guide a resection path for said resection; a resection guide body, the resection guide body associated with the resection guide portion in a fixed orientation; the resection guide body pivotally connected to the stable portion, whereby pivoting adjustment of the resection guide body on the stable portion sets a resection orientation of the resection guide portion; and the resection guide body having a lock for selectively locking the resection guide body to the stable portion at a plurality of selectable resection orientations.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: February 15, 2022
    Inventors: Robert N. Steensen, Brian R. Harris, Jeff R. Justis
  • Patent number: 11229962
    Abstract: A system for trimming fins on a downhole tool is disclosed. The system includes a jig that mounts to the shaft of the tool. A linear aperture is formed in the jig and has a closed end, an open end, and is sized to axially receive a single fin of the tool. A channel is located on an underside of the jig beneath the aperture. The channel has an inner radius of curvature. The inner radius of curvature is substantially similar to an outer radius of curvature of the shaft. The channel can form a friction lock on the exterior of the shaft and be removably attached to the shaft without fasteners. The channel is arcuate and has a selected arcuate span.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: January 25, 2022
    Assignees: Black Diamond Oilfield Rentals, LLC, Erdos Miller, Inc.
    Inventor: John MacMurrough
  • Patent number: 11224444
    Abstract: This invention relates to a surgical device for preparing the knee joint of a patient undergoing to partial knee replacement. The device is patient specific and has information about implant size, alignment and bone cut. This device consists of two parts, one is related to femoral template and the other one is related to tibial template. The femoral template positioned to a predefined location on the femur bone based on virtual planning of the surgery on specific software using 3D imaging. The femoral template allows to perform the posterior distal cut, drill and detect the location of the two holes relevant to the distal cut and implant pegs, while the tibial template allows the surgeon to make the tibial horizontal and vertical cuts; beside that, it has double slots which allows the surgeon to make extra bone removal if needed or when deciding to use larger size of polyethylene insert.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: January 18, 2022
    Inventors: Mahmoud Alm El Din Hafez, Ahmed Abdel Moghny Salem
  • Patent number: 11207085
    Abstract: A method of surgically preparing a proximal end of a tibia includes inserting an intramedullary orthopaedic surgical instrument into a medullary canal of the tibia, securing an attachment device to the intramedullary orthopaedic surgical instrument, attaching a cutting block to the attachment device, resecting the proximal end of the tibia using the cutting block to form a surgically-prepared surface, positioning a tibial base trial on the surgically-prepared surface, and inserting a keel punch through a slot defined in the tibial base trial and into the surgically-prepared surface of the tibia.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: December 28, 2021
    Assignee: DEPUY IRELAND UNLIMITED COMPANY
    Inventors: Kyle B. Thomas, Todd A. Kilpela, Steven P. Gowers, Ryan C. Keefer, William R. Macumber, Jonathan C. Lee, Lisa M. Robertson
  • Patent number: 11197679
    Abstract: A system, method, and device for drilling holes (420, 422) in a target bone (414) are described. For example, the system includes a cutting tool (330), a navigation system (310) configured to track a position of the cutting tool, and a computer-assisted surgical (CAS) system (340) operably connected to the cutting tool and the navigation system. The CAS system can be configured to determine an implant component (100) to be implanted on the target bone (414), determine a cutting block position for preparing the target bone to receive the implant component, determine a plurality of pin locations (420, 422) for securing the cutting block (416) based upon the determined cutting block position, and selectively provide instructions to the cutting tool to cut a hole when the cutting tool is in a position adjacent to at least one of the determined plurality of pin locations.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: December 14, 2021
    Assignee: Smith & Nephew, Inc.
    Inventors: Branislav Jaramaz, Constantinos Nikou
  • Patent number: 11191651
    Abstract: An implant removal tool (1) used to remove a femoral implant (17) from a femur bone (18) by providing a substantially U-shaped body (2) having a substantially rectangular-shaped opening (9) located thereon that allows the substantially U-shaped body to be placed over a neck (21) of a femoral implant so a sharpened front edge (5) of the substantially U-shaped body makes direct contact with an inner surface of the stein of the femoral implant. The U-shaped body may have front side edges (26, 27) that extend beyond a front edge (5) to allow the front side edges to cut anterior and posterior surface of the implant.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: December 7, 2021
    Assignee: Rivera Surgical LLC
    Inventor: Jose S. Rivera, Jr.
  • Patent number: 11191549
    Abstract: A bone preparation guide including a first patient-specific portion based on image data of a specific patient's bone and configured to match the patient's specific bone surface. A second patient-specific portion is based on image data of the specific patient's bone and configured to match the patient's specific bone surface. A patient-generic portion is configured to be a bone-facing portion supported by the first and the second patient-specific bone contacting members at a portion of the patient's bone surface not imaged during preparation of a preoperative plan.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: December 7, 2021
    Assignee: Biomet Manufacturing, LLC
    Inventors: Ryan John Schoenefeld, Troy W. Hershberger, Thomas J. Mauch
  • Patent number: 11173049
    Abstract: A joint balancing insert with an actuated mechanism is for balancing a joint during a joint surgery is disclosed. The joint balancing insert includes a first plate, a second plate and an actuator there between. The second plate includes an integrated mounting portion for mounting a cutting block used to guide surgical cuts of the joint during the joint surgery. Various configurations of the integrated mounting portion may be implemented in the insert to provide for mounting various types of cutting blocks, such as cutting blocks for tibial cuts, femoral cuts, and distal femoral cuts.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: November 16, 2021
    Assignee: XpandOrtho, Inc.
    Inventors: Darryl D. D'Lima, Clifford W. Colwell
  • Patent number: 11166732
    Abstract: A guide for drilling a tunnel in a knee joint having intercondylar roof and tibial eminence. The guide can comprise a guide assembly having a positioning member including an inferior end, and a guide arm extending from the positioning member including a trochlear tip; and a drill sleeve having a body attached to the inferior end, an aperture extending along a drilling axis, and a distal end having a patient-specific surface configured to engage an anterior surface of the tibia. A method of producing a tibial tunnel can comprise inserting a trochlear tip of a guide arm between the tibial eminence and the intercondylar roof, adjusting a position of a positioning member connected to the guide arm, engaging a patient-specific tip of a drill sleeve connected to the positioning member with a surface of a tibia, and inserting a drill bit through the drill sleeve to drill a tibial tunnel.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: November 9, 2021
    Assignee: Biomet Manufacturing, LLC
    Inventors: William Maxson, Kevin T. Stone, Jason D. Meridew, Nathan M. Sautter
  • Patent number: 11154305
    Abstract: A resection guide locator includes a bone engagement portion with surfaces that are complementary to the surface topographies of a bone to be resected during surgery. A housing includes a socket defined by a resilient annular wall that is sized and arranged so to accept a resection guide by press-fit to thereby position and hold the resection guide within he socket. The resection guide is maintained in a predetermined, preferred position while the surfaces are releasably locked in position on the bone. A method is disclosed for forming and using the resection guide locator.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: October 26, 2021
    Assignee: MICROPORT ORTHOPEDICS HOLDINGS INC.
    Inventors: Michael Carroll, Richard Obert, Paul Stemniski
  • Patent number: 11134960
    Abstract: A surgical system including a machining tool aimed at being manually displaced by an operator, a lockable unit including at least two linked and manually displaceable elements aimed at being manually arranged according to a least one calculated locked configuration, a sensor unit including at least one sensor aimed at following, in real time, a real time configuration of the lockable unit within an anatomical reference system, —where the at least two elements of the lockable unit cooperate with lockable element, the lockable element being configured to be activated by a control unit when the real time configuration of the lockable unit corresponds to the at least one locked configuration recorded inside the control unit.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: October 5, 2021
    Assignee: GANYMED ROBOTICS
    Inventors: Blaise Bleunven, Cyril Moulin, Sophie Cahen, Nicolas Loy Rodas, Michel Bonnin, Tarik Ait Si Selmi, Marion Decrouez
  • Patent number: 11129732
    Abstract: A system for preparing a femur to receive an implant includes a saw blade, positionable in a saw blade slot of a distal cutting block and operable to form an axial cut surface on the patient's femur. The saw blade carries nominal sizing indicia that increments negatively from an anterior top of concavity of the medial condyle to a posterior top of concavity of the medial condyle, when the saw blade is positioned on the axial cut surface of the patient's femur. An A/P chamfer cutting block is positionable on an axial cut surface of a femur, the A/P chamfer cutting block carrying at least one rotational guide, the at least one rotational guide positionable on a posterior surface of at least one of the medial condyle or the lateral condyle of the patient's femur to thereby rotationally orient the chamfer cutting block relative to the patient's femur.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: September 28, 2021
    Assignee: X40, Inc.
    Inventor: Anna Andranik Kulidjian
  • Patent number: 11123084
    Abstract: In order to improve a surgical instrumentarium for preparing a femur and a tibia for the implantation of the knee joint endoprosthesis, which instrumentarium comprises a first sawing template with three guidance slots for guiding a saw blade, which three guidance slots define three intersecting cutting planes, in such a way that the number of necessary instruments of the instrumentarium may be reduced, it is proposed that the instrumentarium comprises a second sawing template, that the second sawing template has a fourth guidance slot for guiding a saw blade, and that the first sawing template and the second sawing template are coupled to each other in a force- and/or form-fitting manner in a coupling position and are separated from each other in a separating position.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: September 21, 2021
    Assignee: Aesculap AG
    Inventors: Josef-Benedikt Weiss, Michael Utz, Martin Nonnenmann
  • Patent number: 11096791
    Abstract: The present disclosure discloses an artificial femoral prosthesis (100) for knee arthroplasty, a tibial prosthesis (150), a medial femoral unicompartmental prosthesis (201), a lateral femoral unicompartmental prosthesis (301), and a femoral trochlear prosthesis (401). The femoral prosthesis (100) comprises: a medial condyle portion (51) and a medial trochlear portion (131), wherein an articular surface of the medial condyle portion appears in a sagittal section as an arc of a first ellipse (38), and an articular surface of the medial trochlear portion appears in the sagittal section as an arc of a second ellipse or circle (40); and lateral members (91, 141), comprising a lateral trochlear portion (141) and a lateral condyle portion (91), wherein an articular surface of the lateral trochlear portion appears in the sagittal section as an arc of a third ellipse or circle (80), and an articular surface of the lateral condyle portion appears in the sagittal section as an arc of a fourth ellipse (78).
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: August 24, 2021
    Inventor: Chen Yang
  • Patent number: 11090161
    Abstract: This surgical instrumentation assembly is for positioning a shoulder prosthesis, the shoulder prosthesis comprising a patient-specific shoulder implant adapted to fit onto a glenoid cavity of the scapula of a patient. The assembly comprises a patient-specific impacting device having an underside surface congruent with the glenoid cavity of the scapula of the patient, said underside surface being provided with protrusions adapted to perforate the cortical bone of the scapula upon impact of the impacting device against the scapula by a one-sided translation movement.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: August 17, 2021
    Assignee: HOWMEDICA OSTEONICS CORP.
    Inventor: Brian C. Hodorek
  • Patent number: 11076872
    Abstract: Embodiments of the invention include devices and methods for implanting arthroplasty devices. Some embodiments include designs that allow for use of x-ray images as the only images used to fully and accurately preoperatively and intraoperatively size and align arthroplasty device components and prepare all necessary tissue.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: August 3, 2021
    Assignee: Smith & Nephew, Inc.
    Inventor: Zachary Christopher Wilkinson
  • Patent number: 11051830
    Abstract: A system, method, and device for drilling holes (420, 422) in a target bone (414) are described. For example, the system includes a cutting tool (330), a navigation system (310) configured to track a position of the cutting tool, and a computer-assisted surgical (CAS) system (340) operably connected to the cutting tool and the navigation system. The CAS system can be configured to determine an implant component (100) to be implanted on the target bone (414), determine a cutting block position for preparing the target bone to receive the implant component, determine a plurality of pin locations (420, 422) for securing the cutting block (416) based upon the determined cutting block position, and selectively provide instructions to the cutting tool to cut a hole when the cutting tool is in a position adjacent to at least one of the determined plurality of pin locations.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: July 6, 2021
    Assignee: Smith & Nephew, Inc.
    Inventors: Branislav Jaramaz, Constantinos Nikou
  • Patent number: 11045213
    Abstract: Embodiments of the invention include devices and methods for implanting arthroplasty devices. Some embodiments include designs that allow for use of x-ray images as the only images used to fully and accurately preoperatively and intraoperatively size and align arthroplasty device components and prepare all necessary tissue.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: June 29, 2021
    Assignee: Smith & Nephew, Inc.
    Inventor: Zachary Christopher Wilkinson
  • Patent number: 11039844
    Abstract: Embodiments of the invention include devices and methods for implanting arthroplasty devices. Some embodiments include designs that allow for use of x-ray images as the only images used to fully and accurately preoperatively and intraoperatively size and align arthroplasty device components and prepare all necessary tissue.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: June 22, 2021
    Assignee: Smith & Nephew, Inc.
    Inventor: Zachary Christopher Wilkinson
  • Patent number: 11033334
    Abstract: A method of performing an arthroplasty procedure on a knee region of a femur of a patient where an implant is implanted on the knee region of the femur as part of the arthroplasty procedure is disclosed herein. The method may include generating a planned postoperative positional relationship of the implant relative to the femur. The method may also include, with the computerized representation of the implant in the planned postoperative positional relationship with the computerized representation of the knee region of the femur, generating a planned resection of the femur that will facilitate the implant being implanted on the knee region of the femur in the planned postoperative positional relationship. And the method may also include guiding an actual resection of the femur according to the planned resection of the femur.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: June 15, 2021
    Assignee: Howmedica Osteonics Corporation
    Inventors: Ilwhan Park, Venkata Surya Sarva, Irene Min Choi
  • Patent number: 11026700
    Abstract: The present jig for guiding placement of femoral component of the implant in a knee replacement surgery (J) is a pre-assembled Jig (J) that ensures precision fit femoral implant for knee replacement based on difference of cuts in millimeters instead of the usual angle measurement in degrees. It avoids intrusion of the intramedullary canal substantially decreasing the risks of embolism. It enables the surgeon to use precise values of depth of cuts obtained from a system for obtaining optimum fit implant as described in patent application number 3896/MUM2015. This enables the surgeon to control precisely the placement of the implant in terms of flexion or extension, varus or valgus, internal or external rotation. It also enables precise placement of the four-in-one cutting block simultaneously with the distal femur cut; ensuring precise placement of knee femoral component of the knee implant. This reduces efforts and time taken during surgery.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: June 8, 2021
    Inventor: Manish Shah
  • Patent number: 11020183
    Abstract: A method for designing a patient specific orthopaedic device intended for an osteoarticular structure of a patient, based on at least two two-dimensional radiographic images of the osteoarticular structure taken respectively in two offset image-taking directions, comprising the following steps: b) locating anatomical points on the radiographic images; c) determining at least one three-dimensional geometrical feature of the patient by matching the anatomical points b) located at step b); d) determining at least one three-dimensional size parameter of the orthopaedic device based on the geometrical feature of the patient determined at step c).
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: June 1, 2021
    Assignee: EOS IMAGING
    Inventor: Christophe Gomes
  • Patent number: 11020246
    Abstract: A force and rotation sensing device can be suitable for measuring a force within a knee joint. A force sensor can measure a force exerted between opposing surfaces of a housing. A force display positioned on the housing can visually represent a value of the measured force, such as with a dual-sided light-emitting diode display that is visible from opposing sides of the housing. A first rotation sensor can measure a flexion/extension position of the housing. A flexion/extension display can visually represent a value of the measured flexion/extension position. In some examples, a zero button can set a reference orientation of the housing, so that the first rotation sensor can measure the flexion/extension position as a relative rotation with respect to the reference orientation. In some examples, circuitry can wirelessly transmit data corresponding to the value of the measured flexion/extension position.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: June 1, 2021
    Assignee: Zimmer, Inc.
    Inventors: Kenneth D. Johannaber, Rida Hariri, Derek Dalbey, John Minck, Jr.
  • Patent number: 11007062
    Abstract: An arrangement for providing the proximal surface of the distal end of the femur and the posterior femoral condyle of the femur for a femoral component of a prosthetic knee joint, said arrangement including an alignment clamp mountable to the femur such that a vertical arm of the alignment clamp includes user-operable lateral adjustable extension tabs and a horizontal arm of the alignment clamp that includes user-operable height adjustable extension tabs wherein the lateral and height adjustable tabs engage with a front plate and a base plate which define out reference planes and/or an axis that can be used in establishing the alignment for the definitive resection cuts to the distal end of the femur and the posterior femoral condyle of the femur.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: May 18, 2021
    Inventor: Jonathan Peter Cabot
  • Patent number: 10959717
    Abstract: Apparatus and methods for replacing a knee joint with an implant prosthesis are described. The method includes distracting the knee, locating the pre-diseased joint line of the knee and referencing cuts to the femur and tibia in the coronal plane relative to the joint line. The method further comprises determining the posterior slope of a cut to the tibia in the sagittal plane such that the gaps between the tibia and femur in extension and flexion are substantially equal. Apparatus for use in the method is described, including a distractor for distracting the joint, a joint level finder for finding the pre-diseased joint line and a flexion gap optimisation device.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: March 30, 2021
    Assignee: IMPLANTCAST GMBH
    Inventor: Khosrow R. Sehat
  • Patent number: 10952744
    Abstract: A notch preparation guide for engagement with a femoral trial component according to some embodiments includes an anterior portion having an anterior slot arranged to receive a portion of a first cutting instrument therein, and a posterior portion having a posterior slot arranged to receive a portion of a second cutting instrument therein. The anterior slot and the posterior slot are arranged to capture a portion of a distal femur there between for removal by either the first cutting instrument or the second cutting instrument. In some embodiments, the first cutting instrument is a saw and the second cutting instrument is a chisel. In some embodiments, the notch preparation guide includes a lock adapted to move between an open position wherein the notch preparation guide is detachable from the femoral trial component and a closed position wherein the notch preparation guide is fixedly attached to the femoral trial component.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: March 23, 2021
    Assignee: Smith & Nephew, Inc.
    Inventors: Sean M. Haddock, Michael Jackson
  • Patent number: 10940022
    Abstract: A surgical instrument system includes a pair of side-specific orthopaedic surgical instrument assemblies. The right-limb side-specific instrument assembly is kitted so as to be devoid of left-limb side-specific instruments and vice versa.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: March 9, 2021
    Assignee: DePuy Ireland Unlimited Company
    Inventors: Dennis A. Stoller, Stephanie M. Wainscott, Jonathan C. Lee, Rebecca L. Chaney
  • Patent number: 10939922
    Abstract: A cutting guide includes a body and a rotatable device. The body includes a top portion, a bottom portion parallel to the top portion, and a side portion connecting the top and the bottom portions. The rotatable device is coupled to one end of the top portion of the body, and includes a pivotal element and a handle. The handle in the rotatable device has a first portion coupled to the pivotal element, and a second portion configured to be rotated around an axis of the pivotal element. Each of the top portion of the body, the side portion of the body, the bottom portion of the body, and the handle has one respective edge providing a respective guide surface for cutting a bone in a surgical procedure.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: March 9, 2021
    Assignee: WRIGHT MEDICAL TECHNOLOGY, INC.
    Inventor: Braham K. Dhillon
  • Patent number: 10939924
    Abstract: A bone resection instrument, comprising means of support and positioning (2) for the correct alignment of the tool (1) with respect to the bone to be cut, a cutting guide (7), connected to the means of support and positioning (2), comprising a support (8) attachable to a bone to be cut. The cutting guide (7) comprises a gauge block (9) having a cutting surface (90) and removably connected to said support (8). The instrument (1) is part of a bone resection kit comprising a plurality of gauge blocks (9), each differing in height (h) from one another.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: March 9, 2021
    Assignee: MEDACTA INTERNATIONAL SA
    Inventors: Francesco Siccardi, Massimiliano Bernardoni, Anna Sassi, Fabio Burgassi, Alessio Beccari