Patents Assigned to Zimmer, Inc.
  • Patent number: 12213889
    Abstract: An orthopaedic knee prosthesis includes a femoral component which exhibits enhanced articular features, minimizes removal of healthy bone stock from the distal femur, and minimizes the impact of the prosthesis on adjacent soft tissues of the knee.
    Type: Grant
    Filed: January 10, 2022
    Date of Patent: February 4, 2025
    Assignee: Zimmer, Inc.
    Inventors: Raymond C. Parisi, Nick Drury, Charles A. Baldridge
  • Patent number: 12171533
    Abstract: A system and method for automatic determination of type of pneumatic cuff is disclosed. A system can include a pneumatic cuff with an integrated valve, and a console connectable to the pneumatic cuff. The console can be a pneumatic control system that can include a processor and memory including instructions, which when executed by the processor causes the processor to: inflate the pneumatic cuff through the integrated valve past a threshold pressure such that the integrated valve opens, receive sensor data indicative of a pressure curve during inflation of the pneumatic cuff, compare the pressure curve to stored pressure curves, determine a recommendation, based on the comparison, including information verifying the type of pneumatic cuff attached, and output the recommendation to a user.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: December 24, 2024
    Assignee: Zimmer, Inc.
    Inventors: Paresh M. Vasandani, Douglas C Barker
  • Patent number: 12161346
    Abstract: Devices and methods for performing total knee arthroplasty procedures with kinematic alignment are described herein. A method of performing a total knee arthroplasty can comprise positioning a femoral cut guide adjacent a distal end of a femur, positioning a tibial cut guide proximate a proximal end of a tibia adjacent an anterior surface of the tibia, adjusting a position of the femoral cut guide and the tibial cut guide relative to each other using a tibial positioning device, fixing the position of the femoral cut guide relative to the tibial cut guide using the tibial positioning device, and resecting the femur and tibia with parallel resections using the femoral and tibial cut guides.
    Type: Grant
    Filed: November 20, 2023
    Date of Patent: December 10, 2024
    Assignee: Zimmer, Inc.
    Inventors: Mark D. Erickson, Edward R. Yager, Justin J. Kaler, Ryan Girst
  • Patent number: 12150657
    Abstract: Systems and methods may use a tensor device in various aspects of a knee revision. For example, the tensor device may include a femoral arm configured to couple with an end portion of a femoral intramedullary canal reamer and a tibial arm moveably connected to the femoral arm, the tibial arm configured to couple with an end portion of a tibial intramedullary canal reamer. The tensor device may include a component or be used to identify a knee gap or a component size for an implant.
    Type: Grant
    Filed: December 2, 2021
    Date of Patent: November 26, 2024
    Assignee: Zimmer, Inc.
    Inventor: Eric Greber
  • Patent number: 12127942
    Abstract: An augment for supporting an acetabular shell at an acetabulum of a hip bone. In some examples, the augment can include a body having a first surface and a second surface opposite the first surface. The body can extend from a first end portion that is adapted to be fixed to an acetabular shell, to a second end portion. The body can include a first hole and a second hole, each of the first and second holes extending through the body from the first surface to the second surface. The body can be formed of a porous material that promotes boney ingrowth and can further include a trim marker located in between the first hole and the second hole.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: October 29, 2024
    Assignee: Zimmer, Inc.
    Inventors: Edward J. McPherson, Jacob Macke
  • Patent number: 12102366
    Abstract: This disclosure includes apparatus and methods to attach an orthopedic device to a bone. The method can comprise locating a baseplate on a glenoid of a patient, the base plate including at least a first fastener bore, creating a first post hole in the glenoid for locating a first fixation post, the first fixation post including a quasi-spherical head and a porous metal sleeve, and driving the first fixation post through the first fastener bore and into the first post hole. The porous metal sleeve can engage the first post hole and the quasi-spherical head can contact at least the first wall of the first fastener bore to removeably lock the quasi-spherical head to the baseplate. Driving the first fixation post can create an initial compression between the baseplate and the glenoid. The porous metal sleeve can receive bone ingrowth to maintain the initial compression.
    Type: Grant
    Filed: September 7, 2022
    Date of Patent: October 1, 2024
    Assignee: Zimmer, Inc.
    Inventor: Andrew Rolfe Hopkins
  • Patent number: 12070256
    Abstract: Disclosed herein are bi-spring surgical impact tools and methods of use thereof. The bi-spring surgical impact tools can include a housing, a shuttle, a pinion, and first and second springs. The housing can define a cavity having a first end and a second end. The shuttle can be located within the cavity and define a plurality of indentations. The pinion can be located proximate the shuttle and have a plurality of protrusions sized to mesh with the plurality of indentations during rotation of the pinion. The first and second springs can be mechanically coupled to the housing and the shuttle. Rotation of the pinion in a first direction can translate the shuttle in a first direction towards the first end of the housing and rotation of the pinion in a second direction can translate the shuttle in a second direction towards the second end of the housing.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: August 27, 2024
    Assignee: Zimmer, Inc.
    Inventors: Alexander Slocum, Nicholas Oblas, Tom O'Donnell
  • Patent number: 12064158
    Abstract: Disclosed herein are orthopedic impact tools and methods of use thereof. The orthopedic impact tools can include a housing, a tube assembly, a reverse impact plate, an anvil and an impact mechanism. The housing can include a hand grip portion and an impact mechanism housing portion. The tube assembly can include a first tube portion and a second tube portion. The reverse impact plate can be disposed in between the first tube portion and the second tube portion. The anvil can include a forward impact surface. The impact mechanism can include a motor, a piston, a ram, and a rotary to linear conversion mechanism drivingly connecting the motor to the piston. The piston can be disposed within the first tube portion and the ram can be disposed in the second tube portion and movable into contact between the reverse impact plate and the forward impact surface.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: August 20, 2024
    Assignee: Zimmer, Inc.
    Inventor: Dragomir Marinkovich
  • Patent number: 12048626
    Abstract: The disclosure includes methods and systems for making orthopedic connections where there is unique adjustability to the connection. Illustratively, one embodiment provides a connecting assembly for connecting a plurality of orthopedic components. Such connecting assemblies can include a first orthopedic component that provides a female bore. Additionally, the assembly can include a second orthopedic component that can be or include a male-type connecting member that is positionable in the bore of the first orthopedic component. In one preferred form, the male-type connecting member will be a quasi-spherical member. The quasi-spherical member can include a textured outer surface, e.g., for contacting one or more walls or surfaces in the bore in a fashion that removably locks or helps to removably lock or fix the quasi-spherical member in the bore.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: July 30, 2024
    Assignee: Zimmer, Inc.
    Inventors: Nathan A. Winslow, Andrew Rolfe Hopkins
  • Patent number: 12048630
    Abstract: An orthopaedic knee prosthesis includes a femoral component which exhibits enhanced articular features, minimizes removal of healthy bone stock from the distal femur, and minimizes the impact of the prosthesis on adjacent soft tissues of the knee.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: July 30, 2024
    Assignee: Zimmer, Inc.
    Inventors: Raymond C. Parisi, Nick Drury, Charles A. Baldridge
  • Patent number: 12042229
    Abstract: A method of implanting a prosthetic component using bone density information comprises positioning a bone density reference proximate a patient, obtaining two-dimensional x-ray images of a bone of the patient including the bone density reference, determining a density of the bone from the bone density reference in the two-dimensional x-ray images, superimposing the density of the bone into a three-dimensional mean bone model to generate a patient-specific mean bone model, determining an interface between the bone and the prosthetic component based on bone density information of the patient-specific mean bone model, and implanting the prosthetic component in the bone at the interface. Determining the interface comprises evaluating bone density at the interface to place the prosthetic component, determining bone load threshold at the interface to avoid damaging the bone, and determining hardness for the prosthetic implant at the interface to avoid damaging the bone.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: July 23, 2024
    Assignee: Zimmer, Inc.
    Inventor: Kirk J. Bailey
  • Patent number: 12016576
    Abstract: Disclosed herein are rasp adapters, rasp systems, and method of use thereof. The rasp adapter can include a body and a retention element. The body can define a body cavity, a handle opening, and a trunnion bore. The retention element can be located within the body cavity and can include a knuckle and a heal. The knuckle can be located proximate to and movable into and out of the trunnion bore. The heal can be located proximate the handle opening. Movement of the retention element due to a force applied to the heal can cause movement of the retention element and movement of the knuckle into the trunnion bore.
    Type: Grant
    Filed: February 6, 2023
    Date of Patent: June 25, 2024
    Assignee: Zimmer, Inc.
    Inventors: Joshua Clements, James S. Collins, Christopher A Gray
  • Patent number: 12004793
    Abstract: Disclosed herein are bi-spring surgical hammer impact tools and methods of use thereof. The bi-spring surgical hammer impact tools can include an elongated drive rod disposed in the housing and including an impact flange in a mid-region thereof. A tool implement can be mounted to a first end of the elongated drive rod. An impact shuttle can be mounted on the elongated drive rod and can include first and second impact surfaces opposing opposite faces of the impact flange. A plurality of annular teeth can be defined by an exterior surface of the impact shuttle. First and second springs can be disposed against opposite ends of the impact shuttle. A partial tooth pinion attached to a drive shaft and movable for engagement with the plurality of annular teeth of the impact shuttle can be included.
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: June 11, 2024
    Assignee: Zimmer, Inc.
    Inventor: David Levy
  • Patent number: 11986394
    Abstract: The present disclosure provides knee prostheses that replicate at least a portion of the function of an individual patient's anterior cruciate ligament (ACL). An exemplary knee prosthesis includes a femoral component configured to be implanted on the distal end of the patient's femur and a tibial component configured to be implanted on the proximal end of the patient's tibia. In extension, the femoral component and the tibial component may cooperate to limit anterior movement of the tibial component relative to the femoral component. In flexion, the femoral component may be free to rotate relative to the tibial component.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: May 21, 2024
    Assignee: Zimmer, Inc.
    Inventors: Adam H. Sanford, Vincent A. Webster, Dwight T. Todd, Anthony Romano, Christopher M. Byrd, Jody L. Claypool, Raymond C. Parisi
  • Patent number: 11986258
    Abstract: A robotically controlled depth limiter for a reamer, the depth limiter including a cylindrical housing configured to encompass a portion of a driveshaft of a reamer. The cylindrical housing can define a bore extending therethrough. The depth limiter can include a depth stop engaging the cylindrical housing within the bore, and define an opening configured to receive the driveshaft of the reamer. The depth stop can be configured to receive a signal via processing circuitry of a robotic arm to operate the depth stop to limit distal translation of the driveshaft relative to the cylindrical housing to control a cutting depth of the reamer.
    Type: Grant
    Filed: October 1, 2021
    Date of Patent: May 21, 2024
    Assignee: Zimmer, Inc.
    Inventor: Charles M. Lawrie
  • Patent number: 11969353
    Abstract: The present disclosure relates to prosthesis systems having trays and liners having an asymmetrical locking mechanism to bias the strength of the liner to resist loading forces and associated methods. The tray has a lateral groove disposed in an inner surface of a lateral circumferential portion of the tray and a medial groove disposed in an inner surface of a medial circumferential portion of the tray. The liner has an upper segment and a lower segment. The liner has a locking portion for lockingly engaging the tray that includes the lower segment. The locking portion has a lateral toe positioned generally diametrically opposite a plurality of resiliently deformable medial fingers defined therein. The liner and the tray are engageable in a lateral-to-medial direction so that the plurality of medial fingers can resiliently deform to engage the medial groove subsequent to engagement of the lateral toe within the lateral groove.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: April 30, 2024
    Assignee: Zimmer, Inc.
    Inventors: Steven Humphrey, James D. Wernle, Joanna Surma, Stephen H. Hoag, Donald W. Dye, Kenton A. Walz, Terry W. Wagner, Kathleen Macke, Duane Gillard, Brian D. Byrd, Ken Yamaguchi
  • Patent number: 11931082
    Abstract: An orthopedic instrument for insertion of an orthopedic device into an intramedullary canal of a bone is disclosed. The orthopedic instrument can include an elongate post and a stud. The post can have a longitudinal axis and can extend along the longitudinal axis between a first end portion and a second end portion. The stud can be connected to the post along a portion of a longitudinal length thereof comprising a first end part, A second part of the stud can be free to elastically deflect laterally with respect to the longitudinal axis when subjected to a bending load and return to a first position when unloaded.
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: March 19, 2024
    Assignee: Zimmer, Inc.
    Inventor: William J. Ivan
  • Patent number: 11925359
    Abstract: Disclosed herein are rotary electric surgical hammer impact tools and methods of use thereof. The rotary electric surgical hammer impact tools can include a too body, a motor located within the tool body, a shaft operatively couple to the motor, a disk hammer element, and a tool holder element. The disk hammer element can be connected to the shaft and include a radial impact projection. The tool holder element can include a shaft configured to support an implement at one end and a C-shaped structure straddling the disk hammer element. Axial movement within the tool body can cause the radial impact projection to impart impacts to the tool holder element.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: March 12, 2024
    Assignee: Zimmer, Inc.
    Inventors: Alexander Slocum, Nitin Goyal
  • Patent number: 11918491
    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: May 14, 2021
    Date of Patent: March 5, 2024
    Assignee: Zimmer, Inc.
    Inventors: Kenneth D. Johannaber, Rida Hariri, Derek Dalbey, John Minck, Jr.
  • Patent number: D1033648
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: July 2, 2024
    Assignee: Zimmer, Inc.
    Inventor: Adam Finley