Knee Or Knee Joint Patents (Class 606/88)
  • 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: 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
  • 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: 10933253
    Abstract: A wearable for providing light therapy to a wearer includes at least one fabric panel having an inner surface that when the wearable is worn is configured to face a wearer's skin and an outer surface opposite the inner surface and at least one side-emitting optical fiber affixed to at least one of the inner surface and the outer surface. The side-emitting optical fiber is optically connectable with an optical fiber light source and configured to project light having a therapeutic wavelength toward a wearer of the wearable. The wearable can include at least one non-optical fiber light source affixed to the fabric panel so as to project light toward a wearer of the wearable. The non-optical fiber light source can have a respective side-emitting optical fiber of the at least one side-emitting optical fiber on opposite sides of the at respective non-optical fiber light source.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: March 2, 2021
    Assignee: BIOTHREAD LLC
    Inventors: Daniel Bish, Lawrence A. Blaustein, Jaleh Factor, Boris Kontorovich, Daniel Shuter, Jay Tapper
  • Patent number: 10932837
    Abstract: A tracking device for a surgical navigational system. A tracking head includes tracking elements configured to communicate tracking information to the surgical navigation system. An extension arm is configured to be coupled to the tracking head, and a bone plate is configured to be coupled to the extension arm. The bone plate is further configured to be coupled to anatomic structure and includes openings each configured to receive a fastener. A central opening may be provided to receive an additional fastener for coupling the extension arm to the bone plate. A recess within the top surface may receive the base plate of the extension arm. Spikes of the bone plate are configured to penetrate the anatomic structure and, in conjunction with the fasteners, prevent movement of the tracking device. The bottom surface is concave between the spikes to define a space configured to accommodate portions of the anatomic structure.
    Type: Grant
    Filed: May 12, 2018
    Date of Patent: March 2, 2021
    Assignee: MAKO Surgical Corp.
    Inventors: Jose Luis Moctezuma De la Barrera, Timothy Wade Perez, Donald W. Malackowski
  • Patent number: 10912658
    Abstract: A femoral trial component (16) for attachment to a prepared distal surface of a femur, the femoral trial component comprising a first fastening point (20) for coupling the femoral trial component to a tibial cutting jig. The femoral trial component may further comprise a second fastening point (21) for coupling the trial component to a tibial cutting jig (25), the first and second fastening points being at a predetermined angle (e.g. substantially 90 degrees) to one another. Advantageously the trial component may also have a cut-out region (17) for accommodating an anterior cruciate ligament.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: February 9, 2021
    Inventors: William Jackson, Andrew Price
  • Patent number: 10905412
    Abstract: Sutures with pre-tied knots for use in percutaneous surgical procedures and devices for easily and quickly tying complex suture knots are disclosed.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: February 2, 2021
    Assignee: Ceterix Orthopaedics, Inc.
    Inventors: Mark Y. Hirotsuka, Michael Murillo, Yoav Ben-Haim, Justin D. Saliman, Christopher P. Bender, Michael J. Hendricksen, Victoria C. Quitugua, Sarah-Marie Chan, Jennifer B. Fasman, Stephen J. Peter
  • Patent number: 10905560
    Abstract: A tibial spacer paddle comprises a spacer block comprising opposing bearing surfaces, an alignment slot extending into the spacer block; and a handle extending from the spacer block. The spacer block can include feet for passively engaging the femur or pegs for actively engaging a femoral component so that the spacer block is linked to the femur while the tibia rotates. A tibial spacer system comprises a provisional component having an alignment tab extending from a body and an alignment indicator located on the body, a femoral component and a pin extending from the femoral component. The pin can engage the alignment tab so that the provisional component is linked to the femur while the tibia rotates. In addition to or alternatively to the alignment tab and pin, the provisional component can include a tibial plate that can be rotationally connected to the provisional component.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: February 2, 2021
    Assignee: Zimmer, Inc.
    Inventors: Brian D. Earl, Alexander P. Wolfe
  • Patent number: 10893874
    Abstract: A method of resecting an end of bone comprising inserting a cutting guide having a guide surface into a void in an end of bone such that the guide surface is beneath an end surface of the bone, and resecting the bone along the guide surface while the cutting guide remains disposed within the void in the end of the bone.
    Type: Grant
    Filed: August 15, 2018
    Date of Patent: January 19, 2021
    Assignee: Howmedica Osteonics Corp.
    Inventors: Matthew Demers, Fabiano Pace, Charles Jacob Shotmeyer, Elena Steffan
  • Patent number: 10888436
    Abstract: An impactor tool can include a handle, an impactor, a lock, an actuator, and a pin. The impactor can be coupled to the handle. The lock can be extendable from the impactor to engage an implant and retractable into the impactor to secure the lock and the impactor to the implant. The actuator can protrude from the impactor and can be coupled to the lock. The actuator can include a cam defined by a channel extending through the actuator. The pin can be coupled to the lock and disposed within the cam channel, where the actuator can be operable along a path defined by the cam and the pin to extend and retract the lock.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: January 12, 2021
    Assignee: Zimmer, Inc.
    Inventors: Scott Dykema, Brian Edward Roach
  • Patent number: 10849663
    Abstract: A bone cutting guide may include a support that contains a shaft movable relative to the support. The shaft may carry a guide member having one or more cut guides through which a clinician inserts a cutting member to cut bone positioned under the guide cut guides. In operation, a clinician may fixate the support of the bone cutting guide to a bone and translate the guide member until the one or more cut guides are positioned at a desired cut location. The clinician may then perform a cut through the cut guide.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: December 1, 2020
    Assignee: Treace Medical Concepts, Inc.
    Inventors: Paul Dayton, Joe William Ferguson, F. Barry Bays, John T. Treace, W. Bret Smith
  • Patent number: 10849636
    Abstract: This invention is a device and a method for preparing a knee joint for a prosthesis in a patient undergoing TKA surgery for any knee implant (prosthesis). The device and the method are used in a universal and an open platform fashion for any currently available knee implant, all patient specific implants and any knee implants that could be produced in future. The device is a patient specific instrument, which is based on a method comprising of image based (CT, MRI or computed X-ray) 3-D preoperative planning to design the templates (PSI) that are used to perform the knee surgery for any knee implant in a universal and open platform fashion.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: December 1, 2020
    Inventor: Mahmoud Alm El Din Hafez
  • Patent number: 10842505
    Abstract: The present invention provides a surgery device for osteotomy comprises a first body component, a second body component. The first body component has a side guide edge and an upper guide edge for forming a cutting track. The second body component has a lower guide edge disposed below the upper guide edge. A guide groove is formed between the upper guide edge and the lower guide edge for guiding the saw blade to cut. The upper guide edge has a first correcting perforation. The lower guide edge has a second correcting perforation. There is a regulative angle between a first hole axis of the first correcting perforation and a second hole axis of the second correcting perforation. Compared to the prior art, the present invention can improve the efficiency and accuracy of the surgery.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: November 24, 2020
    Assignee: A PLUS BIOTECHNOLOGY COMPANY LIMITED
    Inventors: Kai-Hsing Wu, Hsiang Wei Lo, Chu An Luo, Chun-Ming Chen, Ping Sheng Yu
  • Patent number: 10842510
    Abstract: A patient-specific guide tool for guiding an object toward a glenoid face of a scapula of a patient for implantation of a shoulder prosthetic device is disclosed. The guide tool includes a guide portion that includes a guide surface. The guide surface is configured to guide movement of the object toward the glenoid face. Furthermore, the guide tool includes a patient-specific portion that is operably coupled to the glenoid portion. The patient-specific portion includes at least one patient-specific surface that is three-dimensionally contoured and that is configured to nest and closely conform to a corresponding surface of the scapula to thereby position the guide surface at a predetermined position relative to the glenoid face.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: November 24, 2020
    Assignee: Biomet Manufacturing, LLC
    Inventors: Benjamin P. Heilman, Nathan A. Winslow, John M. McDaniel, Gregory J. Denham
  • Patent number: 10813574
    Abstract: A data processing method for determining a range of motion of an artificial knee joint which connects a femur and a tibia via a medial ligament and a lateral ligament, wherein at least the femur comprises an implant which forms a medial condyle and a lateral condyle, the method comprising the steps of: acquiring the maximum lengths of the lateral ligament and the medial ligament for a particular flexion angle of the knee joint; calculating a first virtual position between the femur and the tibia in which the lateral condyle of the femoral implant touches the tibia and the medial ligament is stretched to its maximum length; calculating a maximum valgus angle of the range of motion from the first virtual position; calculating a second virtual position between the femur and the tibia in which the medial condyle of the femoral implant touches the tibia and the lateral ligament is stretched to its maximum length; and calculating a maximum varus angle of the range of motion from the second virtual position.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: October 27, 2020
    Assignees: Smith & Nephew, Inc., Smith & Nephew Asia Pacific Pte. Limited, Smith & Nephew Orthopaedics AG
    Inventors: Oliver Fleig, Christian Brack, Zohar Leder, Martin Bauer
  • Patent number: 10792049
    Abstract: The invention relates to an orthopaedic surgical instrument (1) for positioning a tibial cutting guide (2) including: at least a medial or a lateral cutting guide (3) and a vertical cutting guide (4) formed in a guide body (10); an arm or beam (11) supporting said guide body (10); a supporting rod (8) having a proximal end (18) coupled to said guide body (10) through said arm or beam (11). The arm (11) has a structure that is supported in a rotably and cantilever manner at the proximal end (18) of said rod (8); a locking mechanism (20) is provided in the proximity of said proximal end (18) for locking the arm (11) in a desired position; and a bistable mechanical switch (9) is active in said locking mechanism (20) for manually activating the locking position.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: October 6, 2020
    Assignee: LIMACORPORATE S.P.A.
    Inventors: Christoph Fiedler, Alessandra Bordon
  • Patent number: 10786313
    Abstract: Devices and methods for temporarily affixing a surgical apparatus to a bony structure. The temporary mount includes a base member having a top face configured to be impacted by an insertion device and a plurality of elongated prongs extending downwardly from the base member and configured to engage a bony structure. The prongs are separated a distance from one another, and the prongs are configured to move inwardly toward one another when driven downward into the bony structure.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: September 29, 2020
    Assignee: Globus Medical, Inc.
    Inventors: Michael Bartelme, Neil R. Crawford, Mitchell A. Foster, Chris Major, Nicholas Theodore
  • Patent number: 10772641
    Abstract: A surgical apparatus is configured to support at least one bone cut for installation of a prosthetic component. The installed prosthetic component will have reduced alignment error. The surgical apparatus is configured to distract a first compartment to a first predetermined load value while allowing a moving support structure to pivot freely. A distraction lock mechanism is then engaged to prevent movement of a distraction mechanism that raises or lowers the moving support structure relative to a fixed support structure. The moving support structure has M-L tilt angle that is measured. A M-L tilt mechanism is engaged to forcibly equalize the first and second compartments. Engaging the M-L tilt mechanism prevents the moving support structure from freely pivoting. The at least one bone cut relates to the first and second compartments equalized and the M-L tilt angle.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: September 15, 2020
    Assignee: Orthosensor Inc.
    Inventors: Masei Trabish, Martin Roche, Ivan Delevic, Gordon Goodchild, Byung Jai Lee
  • Patent number: 10744005
    Abstract: A method for preparing a femur for receiving a prosthesis. The method includes the following: fixing a femoral trial component to the femur; coupling a reamer bushing relative to the femoral trial component; reaming a cavity into the femur using the reamer bushing as a guide; coupling at least one of a modular femoral box trial and a stem adapter relative to the femoral trial component; trialing the femoral trial component with the articulating surface of the femoral trial component; and performing the coupling of the reamer bushing, the reaming of the cavity, the coupling of the at least one of the modular femoral box trial and stem adapter, and the trialing of the femoral trial component all while the femoral trial component remains fixed to the distal femur.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: August 18, 2020
    Assignee: Biomet Manufacturing, LLC
    Inventors: Nathan Emick Belcher, Bradley T. Durcholz
  • Patent number: 10743889
    Abstract: Methods and apparatus for performing knee arthroplasty, including, but not limited to, bicruciate retaining knee arthroplasty, ore described herein. Methods and apparatus for preparing a distal femur for a femoral implant as well as methods and apparatus for preparing a proximal tibia for a tibial implant are described. These methods and apparatus, 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: June 8, 2018
    Date of Patent: August 18, 2020
    Assignee: Smith & Nephew, Inc.
    Inventors: Zachary Christopher Wilkinson, Brian William McKinnon, Jeffrey Andrew Sharp, Katherine S. Anderson, Christopher F. Scifert, Mark Ellsworth Nadzadi, Scott Kennedy Laster
  • Patent number: 10722385
    Abstract: A method and system for measuring tension, pressure, and distance of knee tissue, the system comprising a prosthetic inlay device comprising at least two platform structures, wherein each of the platforms are supported on a scissor arm structure and a coil spring, a force sensing sensor configured beneath each coil spring, and a connector cable coupled to the force sensing sensors.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: July 28, 2020
    Inventor: Thomas Paszicsnyek
  • Patent number: 10653412
    Abstract: Sutures with pre-tied knots for use in percutaneous surgical procedures and devices for easily and quickly tying complex suture knots are disclosed.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: May 19, 2020
    Assignee: Ceterix Orthopaedics, Inc.
    Inventors: Mark Y. Hirotsuka, Michael Murillo, Yoav Ben-Haim, Justin D. Saliman, Christopher P. Bender, Michael J. Hendricksen, Stephen J. Peter, Victoria C. Quitugua, Sarah-Marie Chan, Jennifer B. Fasman
  • Patent number: 10624654
    Abstract: A patient specific trial repositioning block is disclosed which extends the know operating technique using patient-specific cutting blocks by virtue of the fact that the soft-tissue situation or ligament tension conditions can be checked and corrected intraoperatively. The trial repositioning block can be dimensioned according to the tibia structure and femur structure. During use of the trial positioning block in an operation, the block can bring the femur to lie in a planned corrected end position on the tibia. Trial repositioning can be performed after the sectioning of the tibia, and the operator, after sectioning of the tibia, can already have an accurate picture of the end result of the operation.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: April 21, 2020
    Inventor: Christoph Weber
  • Patent number: 10582918
    Abstract: An assembly (10) for use in knee replacement surgery comprising a tibial base plate (14) which, in use, engages a tibia (200), and a tensioning element (33), (34) operable, in use, to engage between the tibial base plate (14) and a femur (300) to set the gap between the tibial base plate (14) and the femur (300) when the femur (300) and tibia (200) are in extension.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: March 10, 2020
    Inventor: Kirti Moholkar
  • Patent number: 10575956
    Abstract: Methods are disclosed for designing a tibial implant to minimize cortical impingement of a keel or other fixation structure when the tibial implant is implanted in the tibia bone. The design of the keel or other fixation structure on the tibial baseplate can be based on determining a common area between defined cancellous regions of at least two tibia bones. Methods are disclosed for designing a femoral component having a stem extension such that the stem can be sufficiently placed in the diaphysis of the femur when the femoral component is implanted. The method includes determining a canal axis in a femur that creates adequate engagement between a reamer and the diaphysis of the femur.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: March 3, 2020
    Assignee: Zimmer, Inc.
    Inventors: Yifei Dai, Christine Schaerer, Dwight T Todd, Jeffrey E. Bischoff, Adam D. Henderson
  • Patent number: 10548621
    Abstract: The present disclosure relates to a system and method of knee ligament balancing for knee replacement procedures. The disclosure provides a system of components to implant to achieve ligament balancing. In addition, instruments and methods are provided to achieve the desired balance of the ligaments before final fixation.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: February 4, 2020
    Inventor: J. Dean Cole
  • Patent number: 10543001
    Abstract: A method and instruments to assemble a femoral orthopaedic prosthesis is disclosed. The system may also include prosthetic trial components, which may be used to size and select the components of the orthopaedic prosthesis. The system may include components of the orthopaedic prosthesis such as, for example, a prosthetic femoral component, a prosthetic tibial component, a prosthetic stem component, and a prosthetic sleeve component.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: January 28, 2020
    Assignee: DePuy Ireland Unlimited Company
    Inventors: Megan Wallace, Carl F. Livorsi, Jeremy Oden, Gregory S. Meadows, Francisco A. Amaral, Michael J. Brock, Anthony J. Webb, Craig S. Tsukayama, Karen N. Moeller, Richard C. Ditto
  • Patent number: 10537446
    Abstract: A method and instruments to assemble an orthopaedic prosthesis is disclosed. The system may also include prosthetic trial components, which may be used to size and select the components of the orthopaedic prosthesis. The system may include components of the orthopaedic prosthesis such as, for example, a prosthetic femoral component, a prosthetic tibial component, a prosthetic stem component, and a prosthetic sleeve component.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: January 21, 2020
    Assignee: DePuy Ireland Unlimited Company
    Inventors: Megan Wallace, Carl F. Livorsi, Jeremy Oden, Gregory S. Meadows, Francisco A. Amaral, Michael J. Brock, Anthony J. Webb, Craig S. Tsukayama, Karen N. Moeller, Richard C. Ditto
  • Patent number: 10517614
    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: June 16, 2016
    Date of Patent: December 31, 2019
    Assignee: Zimmer, Inc.
    Inventors: Nolan C. Jones, Lindsey R. Rolston, Jeffery A. VanDiepenbos, Brian D. Earl, Anthony Romano, Andrew Freiberg
  • Patent number: 10499933
    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: October 18, 2013
    Date of Patent: December 10, 2019
    Assignee: Smith & Nephew, Inc.
    Inventor: Zachary Christopher Wilkinson
  • Patent number: 10485554
    Abstract: A system is provided for positioning a cutting guide on a femur of a knee to make a cut along a distal end of the femur during knee surgery. The system may generally include an adjustable femoral attachment member configured to attach to a cut distal end of the femur, a cutting guide removably attachable to the femoral attachment member and configured to guide a surgical saw to make an additional cut on the distal end of the femur, and a force sensor for positioning between the femoral attachment member and a proximal end of a tibia of the knee. The force sensor may include a medial portion for sensing a medial force in the knee and a lateral portion for sensing a lateral force in the knee.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: November 26, 2019
    Assignee: Synvasive Technology, Inc.
    Inventors: Barjinder S. Chana, Michael G. Fisher, Michael Haight, Leo Beckers, Kenneth D. Johannaber