Patents Assigned to Zimmer
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Patent number: 10905408Abstract: Technology disclosed herein relates to retractors and methods of use for surgical procedures, and in particular, spinal surgical procedures. In one embodiment, a surgical retractor includes a pair of pivotable armatures and a translatable armature. A body for supporting the armatures is provided, with a handle connected thereto. The handle includes a first rotary actuator, wherein a rotation of the first rotary actuator moves the pair of pivotable armatures in opposite arcuate directions, and a second rotary actuator, wherein a rotation of the second rotary actuator translates the translatable armature in a linear direction.Type: GrantFiled: March 18, 2019Date of Patent: February 2, 2021Assignee: Zimmer Biomet Spine, Inc.Inventors: Randall G. Mast, Alan Burkholder, Andrew Schifle, Adam Kanter, David O. Okonkwo
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Patent number: 10905445Abstract: 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: GrantFiled: April 23, 2018Date of Patent: February 2, 2021Assignee: ZIMMER GMBHInventors: Daniel Greuter, Lukas Riedi
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Patent number: 10905560Abstract: 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: GrantFiled: February 23, 2018Date of Patent: February 2, 2021Assignee: Zimmer, Inc.Inventors: Brian D. Earl, Alexander P. Wolfe
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Patent number: 10905485Abstract: An apparatus for mixing bone cement can comprise a receiving chamber, a mixing chamber, a cannula, a base, and a piston located within the mixing chamber. The receiving chamber defining a conduit. The mixing chamber in fluid communication with the receiving chamber. The mixing chamber configured to house a first component of the bone cement. The cannula located in the receiving chamber and in fluid communication with the conduit. The base including a bladder arranged to be punctured by the cannula, the bladder configured to house a second component of the bone cement. Upon puncturing of the bladder by the cannula the second component of the bone cement passes through the conduit and the cannula into the mixing chamber. The piston configured to seal the mixing chamber upon movement of the piston from a first position relative to the conduit to a second position relative to the conduit.Type: GrantFiled: July 26, 2017Date of Patent: February 2, 2021Assignee: Zimmer Biomet France SASInventors: Lenaic Giffard, Alexis Dupuy, Sebastien Chaligne, Julie Mottet
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Patent number: 10905557Abstract: Disclosed is a wedge for use during a reverse shoulder arthroplasty. The wedge can comprise a body having a proximal surface and a distal surface. The proximal surface and the distal surface can each extend from a distal end of the body to a proximal end of the body. The distal end can have a distal length and the proximal end can have a proximal length. The distal length can be shorter than the proximal length. The proximal surface can have a proximal curvature and the distal surface can have a distal curvature. The proximal curvature or the distal curvature can approximate a curvature of a deltoid muscle.Type: GrantFiled: May 25, 2018Date of Patent: February 2, 2021Assignee: Zimmer, Inc.Inventor: Andrew Rolfe Hopkins
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Patent number: 10905469Abstract: External fixation systems, and methods for immobilizing joints or fractured bones. An external fixation system may include one or more clamp assemblies connected to one or more rod assemblies at polyaxial joints. Each rod assembly may be length adjustable, and may include a one-way locking mechanism to provisionally lock the length of the rod assembly, and additional locking mechanisms to permanently lock the length of the rod assembly. The system may be deployed pre-assembled as a unit to immobilize a joint or fracture. Another external fixation system further includes a spanning member extending transverse to the rod assemblies. Two or more external fixation systems may be deployed in a stacked configuration on one set of bone pins to immobilize two joints and/or fractures. The systems may be provided in kits including guiding instrumentation, bone pins and pin clamping assemblies for connecting the bone pins to the external fixation systems.Type: GrantFiled: December 12, 2017Date of Patent: February 2, 2021Assignee: Zimmer, Inc.Inventors: Daniel J. Triplett, Nathan Erickson
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Patent number: 10898337Abstract: An orthopaedic knee prosthesis includes a tibial bearing component with articular features which operate to protect adjacent soft tissues of the natural knee, promote and/or accommodate desired articulation with an abutting femoral component, and facilitate expedient and effective implantation by a surgeon.Type: GrantFiled: September 29, 2017Date of Patent: January 26, 2021Assignee: Zimmer, Inc.Inventors: Raymond C. Parisi, Abraham P Habegger, Jeff Blaylock
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Patent number: 10893954Abstract: The present teachings provide one or more surgical implements for repairing damaged tissue, such as in the case of a spinal fixation procedure. A cross connector system for use during a spinal fixation procedure is provided. The system includes at least one bridge defining a coupling bore and having a pair of downwardly extending arms for coupling to a first fastener. The system includes a contoured bar having a first end offset from a second end, and a bore having a central axis. The system includes an expansion ring received within the bore, and a locking device received through the expansion ring and the coupling bore. The locking device is operable in a first state in which the contoured bar is movable about the central axis of the bore and in a second state in which the contoured bar fixed relative to the central axis of the bore.Type: GrantFiled: July 19, 2018Date of Patent: January 19, 2021Assignee: Zimmer Biomet Spine, Inc.Inventors: Daniel C. Taylor, Anthony C. DeFalco
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Patent number: 10893947Abstract: A femoral augment, or set of augments, for use with a knee joint prosthesis, where the femoral augment includes a main body portion, an aperture formed within the main body portion and extending in a generally distal/proximal direction, and a pair of legs extending outwardly from said main body portion in a generally posterior direction. In the preferred embodiment, the aperture is configured to receive a stem extension implant, and to allow it to pass through. Additionally, the legs of the femoral augment are preferably configured to be seated proximal of a proximal side of a pair of condylar portions of a femoral component of a knee joint prosthesis. The present invention is intended for situations in which the distal portion of the femur is defective, and it provides a method and devices that allow for preservation of healthy peripheral bone, while still providing the necessary augmentation to the distal portion of the femur.Type: GrantFiled: September 5, 2018Date of Patent: January 19, 2021Assignee: Zimmer, Inc.Inventors: Jeff Blaylock, Michael Cook, Ron Donkers, Scott Dykema, Maleata Hall, John E. Meyers, Arlen D. Hanssen, David Lewallen
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Patent number: 10888436Abstract: 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: GrantFiled: January 26, 2018Date of Patent: January 12, 2021Assignee: Zimmer, Inc.Inventors: Scott Dykema, Brian Edward Roach
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Patent number: 10888636Abstract: Various embodiments disclosed relate to curable calcium phosphate compositions for use with porous structures and methods of using the same. In various embodiments, the present invention provides a curable calcium phosphate composition or a cured product thereof, with the curable calcium phosphate composition including calcium phosphate and a perfusion modifier. In various embodiments, the present invention provides an apparatus comprising a porous structure at least partially in contact with the curable calcium phosphate composition or a cured product thereof. The porous structure can include a porous substrate including a plurality of ligaments that define pores of the porous substrate, and a biocompatible metal coating on the plurality of ligaments of the porous substrate.Type: GrantFiled: October 7, 2016Date of Patent: January 12, 2021Assignee: ZIMMER KNEE CREATIONS, INC.Inventors: Siddhesh Angle, Michael Strunk, Tak Lung Chang, Bradford J. Coale, Greg Stebbins, Imants Liepins
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Patent number: 10881516Abstract: Methods for the prevention, or delayed onset or progression of, bone marrow edema or bone marrow lesion, and subchondral treatment to prevent the progression of osteoarthritis of a joint are disclosed. The methods involve treating the subchondral bone, while preserving, as much as possible, the joint's articular and cartilage surface. The methods could be performed before, during, or after an initial arthroscopic surgery to repair the joint. Associated devices and instruments for treatment of the subchondral bone are also disclosed.Type: GrantFiled: June 26, 2019Date of Patent: January 5, 2021Assignee: ZIMMER KNEE CREATIONS, INC.Inventors: Peter F. Sharkey, Charles F. Leinberry
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Patent number: 10881417Abstract: A patient-specific pin guide for performing a total ankle arthroplasty can comprise a tibia pin guide, a talus pin guide and an interlocking component. A patient-specific cutting guide system for performing a total ankle arthroplasty can comprise a talus cutting guide and a tibia cutting guide. A method of performing a total ankle arthroplasty can comprise: coupling a patient-specific talus pin guide to a talus; coupling a patient-specific tibia pin guide to a tibia; positioning an interlocking device between the patient-specific tibia pin guide and the patient-specific talus pin guide; inserting guide pins into the patient-specific tibia and talus pin guides; removing the patient-specific talus and tibia pin guides from the guide pins; and coupling patient-specific talus and tibia cutting guides to the talus and tibia using at least some of the guide pins to alternatively perform resections on the tibia and talus.Type: GrantFiled: June 9, 2016Date of Patent: January 5, 2021Assignee: Zimmer, Inc.Inventor: Mohamed Mahfouz
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Patent number: 10881416Abstract: The patient specific instrument (PSI) assembly for guiding a surgical tool on a tibia during a knee replacement surgery includes an extra-medullary portion at a distal end, an elongated rod connected at a distal end to the extra-medullary portion and extending in a direction along a mechanical axis of the tibia, and an upper mounting portion at a proximal end. The extra-medullary portion has a pair of spaced apart malleoli clamping elements with a size and/or relative position that is patient-specific for engaging respective ones of the lateral and medial malleoli. The upper mounting portion including a base body connected to a proximal end of the elongated rod and a surgical guide having guide openings extending therethrough and anchor element(s) on the upper mounting portion in locations adapted to overlay a peripheral contour of the tibia. The peripheral contour of the tibia including an anterior surface of the proximal tibia.Type: GrantFiled: March 15, 2019Date of Patent: January 5, 2021Assignee: ZIMMER INC.Inventors: Pierre Couture, Trong Tin Nguyen, Anselm Jakob Neurohr, Jean-Sébastien Merette
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Patent number: 10881462Abstract: A computer assisted surgery (CAS) system and method for preparing an anatomical structure to receive an orthopaedic implant. The method generally involves the steps of determining a contour of the anatomical structure by using the CAS system to acquire a plurality of points on the anatomical structure and provide a best fit approximation of the anatomical structure based on the plurality of points, selecting an implant to replicate the anatomical structure, and preparing the anatomical structure to receive the implant.Type: GrantFiled: November 3, 2015Date of Patent: January 5, 2021Assignee: Zimmer, Inc.Inventors: Jackson R. Heavener, Justin J. May
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Patent number: 10878965Abstract: A patient-specific cutting assembly comprises a model file including geometrical data of a bone of the patient, of an intramedullary canal of the bone, and a planned orientation of a cutting block. A fixing rod is adapted to be longitudinally inserted in and extending partially from the intramedullary canal. A patient-specific cutting block is connectable to the fixing rod. The patient-specific cutting block includes a structure having a patient specific geometry corresponding to the model file of the patient, the structure configured to be connected to a portion of the fixing rod projecting from the bone in a unique coupling orientation. A cutting guide is connected to the structure, the cutting guide being in the planned orientation when the structure is connected to the portion of the fixing rod projecting from the bone.Type: GrantFiled: January 15, 2019Date of Patent: December 29, 2020Assignee: ZIMMER, INC.Inventors: Pierre Couture, Vincent Masse, Anselm Jakob Neurohr
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Patent number: 10874408Abstract: A system for creating a patient-specific jig model for patellar resurfacing surgery comprises a patellar implant positioning module for obtaining a planned position of a patellar implant on a model of the patella, the model being anatomically patient-specific. A patella resurfacing calculator module calculates a position and/or orientation of a resurfacing plane and attachment bore in the patella as a function of the planned position of the patellar implant.Type: GrantFiled: September 30, 2016Date of Patent: December 29, 2020Assignee: ZIMMER, INCInventor: Pierre Couture
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Patent number: 10874407Abstract: An instrument can comprise an instrument body, a cross-pin, and a ring. The instrument body can be configured to be partially inserted into an intramedullary canal of a bone having a bone resection. The cross-pin can extend through the instrument body, and the ring can be movably coupled to the cross-pin and positionable on the bone resection. The ring can be configured to pivot about a longitudinal axis of the cross-pin such that an angle of the ring relative to the instrument body approximates a surface angle of the bone resection relative to the instrument body. Additional apparatus, methods, and systems are disclosed.Type: GrantFiled: May 19, 2016Date of Patent: December 29, 2020Assignee: Zimmer, Inc.Inventor: Andrew Hopkins
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Patent number: 10857009Abstract: A stem for fixating a prosthesis to a bone can include a first stem portion and a second stem portion. The first stern portion can extend substantially along a longitudinal axis. The first stem portion can include a distal portion. The second stem portion can extend substantially distally from the distal portion of the first stem portion along the longitudinal axis. The second stem portion can be securable to the bone, and the second stem portion can include a distal portion couplable to a compress assembly.Type: GrantFiled: June 25, 2018Date of Patent: December 8, 2020Assignee: Zimmer, Inc.Inventor: Ronald Raymond Hugate, Jr.
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Patent number: 10857002Abstract: A surgeon can secure an acetabular component to an acetabular bone. The surgeon can insert a pair of anchors through a corresponding pair of holes in the acetabular component into a corresponding pair of pilot holes drilled into the acetabular bone. Each anchor is attached to a length of suture before insertion. The surgeon can tie the sutures from the anchors together, to secure the acetabular component against the acetabular bone. The surgeon can position the tied lengths of suture in a suture channel formed in the acetabular component. The suture channel can prevent the suture from interfering with a liner that contacts the acetabular component. The surgeon can repeat as needed, using multiple pairs of anchors, multiple holes and suture channels in the acetabular component, and multiple pilot holes in the acetabular bone. The surgeon can use soft anchors or screw anchors.Type: GrantFiled: October 9, 2018Date of Patent: December 8, 2020Assignee: Zimmer, Inc.Inventor: Cristina Piecuch