Tibial Bone Patents (Class 623/20.32)
  • Patent number: 11304826
    Abstract: Embodiments of the invention include a knee arthroplasty trialing system and method with a femoral component and a tibial trial that has one or more spacers and one or more articular trials. Some embodiments include spacers and articular trials that may be moved in and out of the joint space without significantly distracting the femoral component away from the tibial trial. Some spacers and trials are configured to be inserted and removed from a joint space substantially along an anterior-posterior axis.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: April 19, 2022
    Assignees: Smith & Nephew, Inc., Smith & Nephew Orthopaedics AG, Smith & Nephew Asia Pacific Pte. Limited
    Inventors: Christopher Cyko, Jason S. Jordan
  • Patent number: 11197763
    Abstract: Systems for joint arthroplasty include prostheses which are secured to bone with sliding anchors. Examples include unicondylar and bicondylar knee prostheses for hemi-arthroplasty and total arthroplasty. Instruments guide the anchors into proper engagement with the prosthetic components. Methods of using the prostheses and instruments are disclosed.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: December 14, 2021
    Assignee: ENGAGE MEDICAL HOLDINGS, LLC
    Inventors: Hyun Bae, Edwin Su, Brady R. Shirley, Joshua A. Butters, Andrew R. Fauth, Daniel J. Triplett, Neil Etherington, Nicholas Slater, Dylan M. Hushka, Carlyle J. Creger, Ephraim Akyuz, Daniel Hayes
  • Patent number: 11135021
    Abstract: Systems and methods may be used to perform robot-aided surgery. A system may include a robotic controller to monitor a position and orientation of an end effector coupled to an end of a robotic arm. The robotic controller may apply a force to a bone using the end effector, such as via a soft tissue balancing component. The robotic controller may determine soft tissue balance using information from a tracking system, such as a position of a first tracker affixed to the bone. The soft tissue balance may be output, such as to a display device.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: October 5, 2021
    Assignee: Zimmer, Inc.
    Inventors: Pierre Couture, Alain Richard, Olivier Boisvert, Emily Gogarty, Louis-Philippe Amiot, Sebastien Parratte, Di Li, Dugal James
  • Patent number: 11129719
    Abstract: A trial orthopedic implant having a plurality of bearing component augments of differing heights, where each augment releasably, slidably connected to the trial implant.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: September 28, 2021
    Assignee: Synthes GmbH
    Inventors: Brian C. Hodorek, Matt J. Purdy, J. Michael Wiater, Anand M. Murthi, Matthew J. Smith, Derek J. Cuff, Andrew Jawa
  • Patent number: 11090164
    Abstract: A knee joint implant is capable of resolving issues of conventional cementless or uncemented implants. The knee joint implant improves fixing force of the implant in a vertical direction and provides improved initial fixation for the implant.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: August 17, 2021
    Assignee: Corentec Co. Ltd.
    Inventors: Peter F. Sharkey, Javad Parvizi
  • Patent number: 11033397
    Abstract: An artificial knee joint includes a tibial component implanted into the proximal end of a tibia, and a bearing component coupled to the tibial component, in which the tibial component includes an interference prevention portion capable of preventing interference with the bearing component when the bearing component is inserted diagonally and the bearing component includes a protrusion coupled to the interference prevention portion.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: June 15, 2021
    Assignee: Corentec Co. Ltd.
    Inventors: Young-Woong Jang, Chan-Eol Kim, Jae-Hun Ro, Ah-Reum Han, Myung-Chul Lee, Yong In, Seung-Beon Han
  • Patent number: 11002697
    Abstract: A system and method for nondestructive inspection of a unitized composite structures is provided. The system includes an infrared thermographic camera and a carriage that can be mounted on, for example, adjacent frames of the unitized composite structure. The carriage can move along the length of the frames while the infrared thermographic camera collects and analyzes thermographic images of the frame, skin, and stiffeners. The carriage can be moved to other frames and the inspection continued until the entire unitized composite structure has be inspected.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: May 11, 2021
    Assignee: THE BOEING COMPANY
    Inventors: Roger W. Engelbart, Jeffrey G. Thompson
  • Patent number: 10948357
    Abstract: A smart part comprising: a body, manufactured by a three dimensional (3D) additive manufacturing (AM) process, having high-stress and low-stress sections, wherein when the smart part is in operational use the high-stress section is subjected to higher stress than the low-stress section; a resistive strain gauge embedded within the body during the AM process at the high-stress section, wherein the strain gauge is configured to produce a variable output; and a temperature sensor embedded within the body during the AM process at the low-stress section, wherein the temperature sensor is configured to produce a variable output based on temperature.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: March 16, 2021
    Assignee: United States of America as Represented by the Secretary of the Navy
    Inventor: Stephen Charles Cox
  • Patent number: 10932916
    Abstract: A semi-synthetic hybrid material having a pH from 7 to 7.4 includes an inorganic fraction and a cross-linked organic fraction. The method for producing this material, and osteosynthesis devices or implants made of semi-synthetic hybrid material are also described.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: March 2, 2021
    Assignee: MBP (MAURITIUS) LTD
    Inventors: Georges Camprasse, Serge Camprasse
  • Patent number: 10925537
    Abstract: The present disclosure provides alert implants that comprise a medical device and an implantable reporting processor (IRP), where one example of such a medical device includes a component for a total knee arthroplasty (TKA) such as a tibial extension, a femoral component for hip replacements, a breast implant, a distal rod for arm or leg breakage repair, a scoliosis rod, a dynamic hip screw, a spinal interbody spacer, and tooling and methods that may be used to form the alert implant, and uses of such alert implants in the health maintenance of patients who receive the implant.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: February 23, 2021
    Assignee: Canary Medical Inc.
    Inventors: Stephen M. Bailey, Douglas Bensch, Douglas Brajer, Fred Cushner, Aimee L. Desaki, Jeffrey M. Gross, Winslow T. Harte, Nicholas H. Helseth, David A Herrin, William L. Hunter, Dermot Keenan, George A. Morales, Shane Murphy, Stephen Raitt, Thomas Snopek, Curtis Troupe
  • Patent number: 10918491
    Abstract: The invention relates to a femoral component (1) of a knee replacement assembly. The knee replacement assembly is arranged to articulate about an articulation axis (X). The femoral component comprises an outer surface (100), wherein the outer surface is arranged to define a replacement condyle; and an inner surface (200), opposed to the outer surface, wherein the inner surface is adapted for attachment to a prepared distal femur. The inner surface comprises portions (210, 220, 230, 240) provided with mutually-parallel ridges (201) and grooves (202). The ridges and grooves are arranged to provide an increased or reduced stiffness of the femoral component when cantilevered about the articulation axis compared with a stiffness of the femoral component when cantilevered about a transverse axis.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: February 16, 2021
    Assignee: INVIBIO KNEES LIMITED
    Inventors: Stephen Bonham, Adam Briscoe, Ian Revie, Irene Sinz, Reto Lerf, Daniel Delfosse
  • Patent number: 10687948
    Abstract: Disclosed herein are methods of designing and fabricating prosthetic implants having a sagittal wall in which at least a portion thereof traverses a non-linear path. A method of fabricating such a prosthetic implant may include generating a virtual bone model based on image information obtained from at least one bone, determining a proposed height of the prosthetic implant at a first location on the virtual bone model, determining a proposed resection depth into the at least one bone at the first location based at least in part on the proposed height of the prosthetic implant, and determining a curved resection path across a portion of the virtual bone model. The curved resection path may intersect the first location and the prosthetic implant may have a curved sagittal wall corresponding to the curved resection path.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: June 23, 2020
    Assignee: Mako Surgical Corp.
    Inventors: Robert Davignon, Michael C. Ferko, Stuart L. Axelson, Jr.
  • Patent number: 10675151
    Abstract: Disclosed herein are an implant with a suture passage and a method of attaching sutures to the same. The implant may include a suture pocket having a first pocket, a second pocket, and a suture hole disposed therebetween. The first pocket may have a first wall segment, the second pocket may have a second wall segment, and the suture hole may have a first sidewall segment extending from a first opening to a second opening. The first wall segment, the second wall segment, and the first sidewall segment may form a contiguous wall. A method of attaching a suture to the implant may include placing a tip of a suture needle on the first wall segment, sliding the suture needle into the first opening and pushing the suture needle through the suture hole.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: June 9, 2020
    Assignee: Howmedica Osteonics Corp.
    Inventors: Rajan Yadav, David Viscardi, Koustubh Rao, Nicholas Olson, Roy Philip Splieth
  • Patent number: 10631991
    Abstract: Methods, systems and apparatuses are disclosed including apparatuses that can be used in a total knee replacement procedure. According to one example, a tibial implant is disclosed. The tibial implant can be configured for attachment to a tibia in a knee arthroplasty and can include a baseplate having a lateral portion and a medial portion oriented relative to an anteroposterior axis and a fixation member. Each of the lateral portion and the medial portion can have a distal surface configured to interface with a resected proximal surface of a tibia. The fixation member can be coupled to and extend both distally and medially from the baseplate such that the fixation member is oriented at an acute angle relative to the distal surface of the medial portion.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: April 28, 2020
    Assignee: Zimmer, Inc.
    Inventor: Edward R. Yager
  • Patent number: 10610378
    Abstract: Methods and systems for providing feedback to guide selection of an artificial bone flap. A user interface for planning a neurosurgical procedure is provided, the neurosurgical procedure including closing of an opening in a portion of a patient's skull using an artificial bone flap. 3D dimensions of the opening are determined using at least pre-operative three-dimensional (3D) imaging data. One or more parameters for selecting an artificial bone flap are determined, where the one or more parameters are based on at least the 3D dimensions of the opening. Output indicating one or more recommended available artificial bone flaps suitable for closing the opening is provided, the recommendation being based on the determined one or more parameters.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: April 7, 2020
    Assignee: SYNAPTIVE MEDICAL (BARBADOS) INC.
    Inventors: Cameron Piron, Murugathas Yuwaraj, Joshua Lee Richmond, Gal Sela
  • Patent number: 10603005
    Abstract: In some embodiments, a method for determining a deformity in a bone surface comprises performing a scan of a healthy bone and a diseased bone; creating 3-dimensional (3D) representations of a current surface of the diseased bone; constructing an estimated healthy surface in 3D for the diseased bone based on the surface of the healthy bone; and identifying a deformity in the diseased bone by comparing the estimated healthy surface to the current surface of the diseased bone. In some embodiments, the scan is performed using high resolution peripheral quantitative computed tomography (HR-pQCT).
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: March 31, 2020
    Assignee: Worcester Polytechnic Institute
    Inventors: Travis F. Henchie, Karen L. Troy
  • Patent number: 10575875
    Abstract: A method for planning an arthroplasty procedure on a patient bone. The method may include accessing generic bone data stored in a memory of a computer, using the computer to generate modified bone data by modifying the generic bone data according to medical imaging data of the patient bone, using the computer to derive a location of non-bone tissue data relative to the modified bone data, and superimposing implant data and the modified bone data in defining a resection of an arthroplasty target region of the patient bone.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: March 3, 2020
    Assignee: Howmedica Osteonics Corporation
    Inventors: Elena Pavlovskaia, Oleg Mishin, Boris E. Shpungin, Ilwhan Park, Venkata Surya Sarva, Irene Min Choi
  • Patent number: 10531959
    Abstract: A knee replacement, a kit for a knee replacement, and a method for performing a knee replacement are provided. A tibial fixed component of the knee replacement is configured to be permanently inserted into a resected tibia of a patient. A tibial modular component of the knee replacement is removably attachable to the tibial fixed component and has an upper surface to interface with a femoral component. The tibial modular component is removable from the tibial fixed component so that in the event that the fit of the knee replacement is not correct, the tibial modular component may be replaced with a differently sized tibial modular component without removing the tibial fixed component from the bone.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: January 14, 2020
    Inventors: Russell Nevins, David Backstein
  • Patent number: 10485668
    Abstract: A femoral component (101) for a knee prosthesis, the femoral component (101) comprising: a body portion (103) having: a lateral portion (109) and a medial portion (111) when in an implanted configuration, wherein a parasagittal plane is located at the intersection between the lateral portion (109) and the medial portion (111); and a patella track (105) extending anterior-posteriorly around the body portion (103), wherein the patella track (105) comprises a first patella track portion (105a) that is directed laterally away from the parasagittal plane as it extends towards a posterior end of the patella track (105).
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: November 26, 2019
    Inventors: David Wycliffe Murray, Paul Monk
  • Patent number: 10383638
    Abstract: A computer assisted surgical system for guiding bone cutting operations of an arthroplasty surgery is provided. The computer assisted surgical system includes a cutting guide having a guiding surface for mounting to a bone and a computer. The computer is in communication with the cutting guide and configured to generate a bone model of the first bone without the use of pre-operative bone images, determine a position of an implant model having a bone interface surface on the bone model, determine a position of the cutting guide on the first bone based on the determined position of the implant model on the bone model, and position the guiding surface of the cutting guide to one of a plurality of predetermined cut configurations relative to the bone interface surface.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: August 20, 2019
    Assignee: OMNIlife science, Inc.
    Inventors: Edward J Cheal, George Cipolletti, David L Lasalle, Carl Knobloch, Christopher Plaskos
  • Patent number: 10282488
    Abstract: A patient-specific osteotomy guide according to the present disclosure includes a three-dimensional bone-engaging inner surface configured to closely mate and conform to a corresponding portion of a specific patient's tibia. A resection slot at a patient-specific position and orientation to guide a cutting tool to perform an osteotomy according to a preoperative plan for the patient. An axial guide at a patient-specific position and orientation to guide a tool to perform an ACL/PCL reconstructive procedure according to a preoperative plan for the patient.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: May 7, 2019
    Assignee: Biomet Manufacturing, LLC
    Inventor: Christopher Eash
  • Patent number: 10278827
    Abstract: According to one example, a tibial bearing component for articulation with a medial condyle and a lateral condyle of a femoral component in a knee replacement procedure is disclosed. The tibial bearing component can include a distal surface and an articular surface opposing the distal surface. The articular surface can include a medial compartment and a lateral compartment configured for articulation with the medial condyle and the lateral condyle of the femoral component, respectively. The lateral compartment can have a lateral articular track with a lateral anterior-posterior extent. The lateral articular track can comprise a plurality of distal-most points along a proximal surface of the lateral compartment that are contacted by the lateral condyle during rollback of the femoral component. The medial compartment can differ in configuration from the lateral compartment and can have an anterior lip height of between about 9 mm and about 13 mm.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: May 7, 2019
    Assignee: Zimmer, Inc.
    Inventors: Nick Drury, Jeff Blaylock, Stephen E. White, Calie B. Grey
  • Patent number: 10271954
    Abstract: Methods, techniques and apparatuses are disclosed including exemplary methods of performing a knee arthroplasty of the tibia. One exemplary method can include determining at least a depth of a distal fixation feature of a tibial implant, and forming a metaphyseal recess in a proximal portion of the tibia. The recess can be configured to receive the distal fixation feature therein and can be sized to exceed at least the depth of the distal fixation feature such that when a distal surface of the tibial implant contacts a proximal surface of the proximal portion of the tibia and the distal fixation feature is received in the metaphyseal recess, a gap remains between the distal fixation feature and one or more surfaces that form a portion of the metaphyseal recess.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: April 30, 2019
    Assignee: Zimmer, Inc.
    Inventors: Brian Edward Roach, Fred A. Wentorf, Amanda Szalkowski, Vanessa Croll, Tyler Bell
  • Patent number: 10271955
    Abstract: Surgical methods and tibial implants for accommodating the anterior cruciate ligament during unicompartmental or bi-unicompartmental knee arthroplasty procedures.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: April 30, 2019
    Assignee: Zimmer, Inc.
    Inventors: Robert Hodorek, Herve Windisch, Marc Bandi, Thomas Trachsler
  • Patent number: 10098748
    Abstract: Knee prosthesis includes a femoral component adapted to fit on a distal end of the femur and a tibial insert component. The femoral component includes a measured anterior/posterior dimension defined by the posterior condyle surface and the interior surface of the anterior flange and a distal peg provided on a distal bone facing surface of each of the lateral and medial condylar structures, wherein the distal pegs are positioned at a midpoint of the measured anterior/posterior dimension. The implant system provides two distinct sizing segments and the tibial insert has a medial tibial aspect ratio of 0.74 and a lateral tibial aspect ratio of 0.65 to 0.68 for all sizes.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: October 16, 2018
    Assignee: MicroPort Orthopedic Holdings Inc.
    Inventors: William J. Maloney, J. David Blaha, C. Lowry Barnes, John M. Green, David R. Tuttle
  • Patent number: 10034756
    Abstract: There is provided a tibial component comprising: a tibial tray with an inferior side; and a support member connected to the inferior side of the tibial tray, the support member having a stem portion, the support member further comprising at least one opening. In one embodiment, the at least one opening is constructed and arranged to receive a sawblade or an osteotome. In another embodiment, the at least one opening is comprised of solid material but is radio-lucent. In yet another embodiment, the at least one opening is comprised of solid material and is frangible.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: July 31, 2018
    Assignee: Smith & Nephew, Inc.
    Inventor: Ryan Lloyd Landon
  • Patent number: 9949837
    Abstract: A method for removing a stem portion of an orthopedic implant from a bone comprises exposing an implanted orthopedic implant having a body portion, a stem portion interconnected to the body and a porous metal section forming an interconnection between the body and the stem portion. A cutting tool is mounted on a holder connected to an exposed surface of the orthopedic implant. The porous section is aligned with the cutting tool mounted on the holder. The entire porous section is cut by moving the cutting tool therethrough in a direction transverse to the stem portion axis. The implant body portion is then removed and then the stem portion is removed from the bone. The cutting tool may be a saw or chisel which may be mounted on a guide fixed to the body portion.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: April 24, 2018
    Assignee: Howmedica Osteonics Corp.
    Inventors: Aiguo Wang, Matthew P. Poggie, Nicholas Nai Guang Dong
  • Patent number: 9907655
    Abstract: A component of an artificial joint according to an exemplary aspect of the present disclosure includes, inter alia, a hollow tube including bone ingrowth material. Further, the hollow tube is selectively expandable. The bone ingrowth material allows the component to become biologically fixed to adjacent bone. Further, expansion of the hollow tube increases friction between the hollow tube and the adjacent bone, which increases stability.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: March 6, 2018
    Assignee: ARTHREX, INC.
    Inventors: Zachary Ingwer, Scott Sherman, Joel Zubizarreta
  • Patent number: 9861489
    Abstract: The invention relates to a knee prosthesis with a tibial part (1) that has concave or plane condylar bearing surfaces (2, 3). According to the invention, the lateral condylar bearing surface (2) merges into a preferably convex end portion (4) that falls away in the dorsal direction.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: January 9, 2018
    Inventor: Thomas Siebel
  • Patent number: 9839520
    Abstract: Provided is an artificial knee joint implant with which the balance between ligaments can be properly adjusted. An artificial knee joint implant includes a plurality of types of tibial plates-having tibia-side sliding faces that slide against femoral components and respectively having at least either the tibia-side sliding faces at different positions with respect to a tibia in a state where the tibial plates are fixed to a tibial tray attached to a tibia, or the tibia-side sliding faces in different shapes.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: December 12, 2017
    Assignee: KYOCERA CORPORATION
    Inventor: Tomoyuki Mizuguchi
  • Patent number: 9827106
    Abstract: A method of manufacturing a joint implant for a joint of a specific patient includes obtaining a three-dimensional image of a bone of the joint of the specific patient from medical imaging scans of the bone of the patient and determining on the three-dimensional image a resection plane for contacting a corresponding planar surface of the joint implant for the specific patient. The method includes determining a three-dimensional image of a porous structure of a bone layer along the resection plane from the medical imaging scans of the patient. The joint implant is manufactured with a layer of a patient-specific porous construct attached to the planar surface of the joint implant. The layer of the patient-specific porous construct substantially replicates the porous structure of the bone layer of the specific patient.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: November 28, 2017
    Assignee: Biomet Manufacturing, LLC
    Inventors: Erin L. Hensley, Duke A. Fox, Gautam Gupta
  • Patent number: 9801727
    Abstract: A tibial base plate for attaching to a resected surface at a proximal end of a tibia is provided. The tibial base plate includes a bridge, a pair of compartments and a stem. The bridge has a first contact surface sitting on the resected surface. The compartments are disposed at opposite sides of the bridge and extend in an anterior-posterior direction to form a notch to accommodate a tibial eminence. Each of the compartments has a second contact surface sitting on the resected surface. The stem is connected to the bridge and the compartments and inset into the proximal end of the tibia. The stem has an outer surface. The outer surface is canted towards the notch as insetting into the proximal end of the tibia. The stem is engaged with a cutting slot on the resected surface into the proximal end of the tibia.
    Type: Grant
    Filed: November 2, 2014
    Date of Patent: October 31, 2017
    Assignee: AOD Holdings, LLC
    Inventors: Thomas D. Ferro, Donald Lee, John Parks, Austin T. Ferro
  • Patent number: 9775711
    Abstract: An orthopedic prosthesis and a method for rapidly manufacturing the same are provided. The orthopedic prosthesis includes a solid bearing layer, a porous bone-ingrowth layer, and an interdigitating layer therebetween. A laser sintering technique is performed to manufacture the orthopedic prosthesis.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: October 3, 2017
    Assignee: Zimmer, Inc.
    Inventors: Jia Li, Adam M. Griner
  • Patent number: 9757242
    Abstract: A tibial implant system has an ultra-high molecular weight polyethylene tibial insert which can engage with either one of two tibial trays through differing means of engagement. The tibial insert includes a locking wire and locking tab disposed along an anterior surface and a locking recess disposed along a posterior surface. A first polymeric tibial tray includes a bead along an anterior wall and an undercut area along a posterior wall. A second metallic tibial tray includes a plurality of barbs along an anterior wall and an undercut area along a posterior wall.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: September 12, 2017
    Assignee: Howmedica Osteonics Corp.
    Inventors: Nicholas Nai Guang Dong, Matthew P. Poggie, Walter Schmidt
  • Patent number: 9655731
    Abstract: A cemented tibial prosthesis having a bone-contacting surface with a porous outer rim. With the bone-contacting surface seated against a resected proximal tibia, bone cement or another suitable adhesive will travel into the pores of the porous outer rim to enhance the connection between the tibial prosthesis and the tibia.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: May 23, 2017
    Assignee: Zimmer GmbH
    Inventors: Andrew J. Jukes, Rosemary E. Thompson, Jörg Zimmermann
  • Patent number: 9615887
    Abstract: A knee bone cut system and method is disclosed. The knee bone cut system supports cutting an anterior portion of a distal end of a femur. The system comprises a sensored insert, a femoral rotation guide, and a remote system to receive and display sensor data. The sensored insert provide data related to load magnitude, position of load, and leg position. The femoral rotation guide has moveable condyles to adjust condyle position in a rapid manner. A pinch mechanism and lock mechanism respectively move the condyles into contact with the sensored insert. Moreover, the femoral rotation guide can be loaded similar to a final installed insert over a range of motion. For example, the patella can be placed on the femoral rotation guide allowing the patella to load the sensored insert. The femoral insert guide includes guide holes that are used in conjunction with a bone cutting jig.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: April 11, 2017
    Assignee: ORTHOSENSOR INC.
    Inventors: Marc Stein, Martin Roche
  • Patent number: 9585615
    Abstract: A knee balancing system for measuring performance parameters associated with an orthopedic articular joint comprises a force sensing module and one or more inertial measurement units. The force sensing module comprises a housing that includes an articular surface having a medial portion and a lateral portion, each of which is substantially mechanically isolated from the other. The force sensing module also includes first and second sets of sensors disposed within the housing. The first set of sensors is mechanically coupled to the medial portion of the articular surface and configured to detect information indicative of a first force incident upon the medial portion of the articular surface. The second set of sensors is mechanically coupled to the lateral portion of the articular surface and configured to detect information indicative of a second force incident upon a lateral portion of the articular surface.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: March 7, 2017
    Assignee: MiRus LLC
    Inventors: Angad Singh, Philip Matthew Fitzsimons
  • Patent number: 9504576
    Abstract: An implantable device includes at least one solid structure having an external surface and a volume beneath the surface. One or more of a first conductor or set of conductors is disposed externally and/or internally on or within the structure and an array of elongate electrically conductive elements are disposed radially outwardly within the volume. A breach is detected when a conductive fluid intrudes into the volume through the surface.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: November 29, 2016
    Assignee: Sensurtec, Inc.
    Inventor: Richard D. Y. Chen
  • Patent number: 9408702
    Abstract: A tibial component for implantation at a resected tibia. The tibial component includes a medial tray, a lateral tray, and a connection member between the medial tray and the lateral tray. A first fastener extends from the medial tray to the connection member along a first pivot axle to pivotably couple the medial tray to the connection member. A second fastener is spaced apart from the first fastener and extends from the lateral tray to the connection member along a second pivot axle to pivotably couple the lateral tray to the connection member. The medial tray and the lateral tray are configured to pivot independently of one another with respect to the connection member.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: August 9, 2016
    Assignee: Biomet Manufacturing, LLC
    Inventor: Robert Metzger
  • Patent number: 9387085
    Abstract: Disclosed herein are tibial baseplates having a medial portion and a lateral portion, each of the medial and lateral portions having a proximal surface and a distal surface opposite the proximal surface. An intermediate portion joins the medial and lateral portions, wherein the intermediate portion has a proximal surface angled to the proximal surfaces of the medial and lateral portions about a longitudinal axis of the tibial baseplate. The proximal surface of the medial portion is stepped from the proximal surface of the lateral portion about the longitudinal axis. The proximal surfaces of the medial and lateral portions are configured to receive corresponding medial and lateral inserts.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: July 12, 2016
    Assignee: Stryker Corporation
    Inventors: Robert Davignon, Michael C. Ferko, Stuart L. Axelson, Jr.
  • Patent number: 9314343
    Abstract: An orthopaedic tibial prosthesis includes a tibial baseplate sized and shaped to cover substantially all of a resected proximal tibial surface, and a tibial bearing component sized to leave a posteromedial portion of the tibial baseplate exposed when the tibial bearing component is mounted to the baseplate. The exposed posteromedial portion of the tibial baseplate includes a chamfered profile which cooperates with a correspondingly chamfered profile at a posteromedial edge of the tibial bearing component to create a substantially continuous chamfer extending from the resected tibial surface to the medial articular surface of the tibial bearing component. Advantageously, this chamfer leaves an absence of material (i.e., a relief or void) at the posteromedial edge of the tibial prosthesis, thereby enabling deep flexion of the prosthesis without impingement between the tibial prosthesis and adjacent anatomic tissues or prosthetic structures.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: April 19, 2016
    Assignee: Zimmer, Inc.
    Inventors: Raymond C. Parisi, Katherine M. Rettig, Jeff Blaylock
  • Patent number: 9271840
    Abstract: A tibial component for use in conjunction with a knee replacement surgery. An inferior surface of the tibial component may be concave to thereby improve bonding between the tibial component and a tibia. The tibial component may produce low stress in the cement mantle during in-vivo loading. A stem extending from the inferior surface of the tibial component may include an anterior curvature to facilitate the use of minimally evasive surgical techniques. The stem may further include medial-lateral wing portions with a posterior curvature to provide improved support.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: March 1, 2016
    Inventors: John Keggi, Louis Keppler, Timothy McTighe, Declan Brazil, Carl Knobloch
  • Patent number: 9265613
    Abstract: A cementless orthopedic implant is disclosed. More specifically, but not necessarily entirely, a cementless tibial implant used as a component of a knee joint is disclosed. The tibial component may comprise a tibial tray and stem. The tibial component may be a monoblock design used for both primary and revision surgeries. The stem of the tibial component may comprise a plurality of protruding steps that assist in providing primary fixation and stability without the use of screws or cement. The stem of the tibial component may further comprise a first and second stepped wing portions.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: February 23, 2016
    Inventor: Russell Nevins
  • Patent number: 9149206
    Abstract: Tibial prosthesis systems for implantation or use in a knee joint are disclosed. A tibial prosthesis system can include a bearing component, a base component, a shim component, and optionally a spacer component. The shim or spacer component can be inserted between an inferior surface of the bearing component and a superior surface of the base component. The insertion of the shim or spacer component can provide spacing adjustment between the bearing and base components. The shim component can include one or both of a medial edge having a different height than a lateral edge or an anterior edge having a different height than a posterior edge. The differing edge height of the shim component can provide a surgeon with knee joint kinematic insight regarding an angled bone cut before the cut is made, and can allow for sizing of an appropriately permanent prosthesis system using a reduced number of provisional components.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 6, 2015
    Assignee: Zimmer, Inc.
    Inventors: Jody Claypool, Wayne Paprosky, David Lewallen, Steven Stump, Stephen E. White
  • Patent number: 9119733
    Abstract: A prosthetic component suitable for trialing or long-term implantation is provided. The prosthetic component includes at least one sensor for measuring a parameter of the muscular-skeletal system or a biological parameter is disclosed. The prosthetic component comprises a conductive material. Electronic circuitry and sensors are housed within the prosthetic component. Data from the prosthetic component can be transmitted to a remote system. The prosthetic component can comprise steel, titanium, cobalt, an alloy, or other conductive material. At least a portion of the conductive material comprising the prosthetic component is coupled to ground to shield the sensor from parasitic coupling that can affect measurement accuracy. The prosthetic component can have an opening in the shield to allow sensing or transmission of data.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: September 1, 2015
    Assignee: ORTHOSENSOR INC.
    Inventors: Marc Stein, Andrew Chase
  • Patent number: 9113920
    Abstract: A method and apparatus for performing an open wedge osteotomy utilizing a keyed, wedge-shaped implant for disposition in a keyed, wedge-shaped opening created in a bone. The keys may be disposed in vertical or horizontal arrangements. In addition, a shear rib key hole may be formed adjacent the wedge-shaped opening in the bone.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: August 25, 2015
    Assignee: Arthrex, Inc.
    Inventors: Kelly Ammann, Vincent P. Novak, Robert Schneider, Ralph E. Burns, Annunziato Amendola
  • Patent number: 9101478
    Abstract: Systems and methods for providing deeper knee flexion capabilities, more physiologic load bearing and improved patellar tracking for knee prosthesis patients. In some instances, such systems and methods include a tibial component for replacing at least a portion of a proximal portion of a tibia. While the tibial component can include a variety of characteristics, in some cases, it includes a tibial articular surface, an undersurface, and a stem that extends from the undersurface. In some cases, this stem is configured to contact an inner surface of an anterior cortex of the tibia when the stem is inserted into the tibia and the undersurface of the tibial component is in contact with a cut surface of the tibia. Other implementations are also described.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: August 11, 2015
    Inventors: Kent M. Samuelson, Connor E. Samuelson
  • Patent number: 9095453
    Abstract: A trial system for an implantable joint replacement includes a guide assembly having a baseplate and a guide plate, the guide plate rotatable relative to the base plate about a rotation axis extending through the guide plate and the baseplate while directly connected to the baseplate. An adjustment mechanism is actuable to selectively control the rotational juxtaposition of the guide plate relative to the baseplate. The rotation axis may be medially offset from the center of the guide assembly. A single instrument may be used to rotate the guide plate relative to the base plate and lock the plates in the selected juxtaposition. The guide plate provides in situ positionable cutting guidance for implantation of prosthetic joint components. The system may further include an articulating insert trial mounted on the guide assembly to determine preferred joint alignment and/or optimal positioning of the guide plate.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: August 4, 2015
    Inventors: Michael D. Ries, Mark J Mooradian
  • Publication number: 20150142123
    Abstract: A knee prosthesis including a knee component and an indexing boss. The knee component includes a first engagement portion. The indexing boss includes a first terminal end surface, a second terminal end surface, and a second engagement portion at the second terminal end surface. The first terminal end surface and the second terminal end surface are arranged along non-parallel planes. The first and the second engagement portions are configured to selectively couple together at a plurality of rotational orientations to attain a corresponding plurality of angular orientations of the indexing boss relative to the knee component due to the first and the second terminal end surfaces being arranged along non-parallel planes.
    Type: Application
    Filed: January 21, 2015
    Publication date: May 21, 2015
    Inventor: Curt Collard
  • Publication number: 20150134069
    Abstract: The invention concerns a tibial prosthetic component comprising a plate (100) for forming a tibial plateau of a tibia (16), wherein a peripheral region of the plate (100) has a thickness of less than 3 mm. The invention also concerns a tibial prosthetic component having a keel of depth less than 9 mm. The invention also concerns a method of selecting a tibial prosthetic component comprising receiving measurements of at least one physical attribute of an individual into whom the tibial prosthetic component is to be implanted, selecting a thickness of a plate (100) and depth of keel of the tibial prosthetic component based on the measurements and providing a tibial prosthetic component comprising a plate (100) having the selected thickness and a keel having the selected depth.
    Type: Application
    Filed: November 7, 2014
    Publication date: May 14, 2015
    Inventors: John Goodfellow, John O'Connor, Chris Dodd, David Murray