Patents by Inventor Brian W. McKinnon
Brian W. McKinnon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8998911Abstract: Methods and apparatus for performing knee arthroplasty, including, but not limited to, bicruciate retaining knee arthroplasty, are 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: GrantFiled: May 28, 2010Date of Patent: April 7, 2015Assignee: Smith & Nephew, Inc.Inventors: Zachary Christopher Wilkinson, Brian W. McKinnon, David A. Drucker, Michael D. Ries
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Publication number: 20150018835Abstract: Systems, devices and methods that improve the placement of orthopedic components and/or instrumentation during surgery. In one particular embodiment, the systems, devices and methods provide drill guides that remove the need for three-handed placement of implant components and reduce complications of implant and fixation member placement. Also disclosed is a sheath with a rounded tip that engages a spherical recess of a patient matched cutting block to reduce the ability of the first fixation pin to communicate unintentional moment/torque to the patient matched instrument through a new articulation between the pin and the guide. Once the first fixation pin has been placed to secure the patient matched instrument to the bone, the effect of subsequent pins is greatly diminished. Subsequent pins may or may not also be decoupled rotationally.Type: ApplicationFiled: January 24, 2013Publication date: January 15, 2015Inventors: Jeffrey J Shea, Brian W. McKinnon, Zachary C. Wilkinson, Michael S Bennett, Richard D. Lambert
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Patent number: 8900316Abstract: Certain embodiments generally provide an improved tibial base member comprising keel portions that allow one or both cruciate ligaments to be preserved. Other embodiments provide improved lateral and/or medial inserts having a mesial lip that helps relieve and/or prevent impingement between the femoral component and the tibial eminence. Other embodiments provide improved femoral components having various chamfers to provide additional clearance with respect to the tibial eminence and posterior cruciate ligament without decreasing bone coverage.Type: GrantFiled: January 28, 2011Date of Patent: December 2, 2014Assignee: Smith & Nephew, Inc.Inventors: Nathaniel M. Lenz, Richard Michael Smith, Zachary Christopher Wilkinson, Brian W. McKinnon, Abraham B. Salehi, Jonathan Kirk Nielsen, Michael D. Ries, Gerald J. Jerry
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Publication number: 20140324179Abstract: Systems, devices, and methods are described for providing orthopedic knee inserts. The orthopedic knee inserts include a surface portion having a lip configured to couple with a mating member of a tibial component, where the lip has recesses that define non-continuous contact regions between the lip and the mating member of the tibial component. Alternatively, or additionally, in certain embodiments the mating member includes a shelf for mating with an insert, the mating member having a plurality of splines disposed along the shelf that form non-continuous contact regions between the mating member and the insert.Type: ApplicationFiled: December 19, 2012Publication date: October 30, 2014Inventors: Abraham B. Salehi, Brian W. McKinnon
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Patent number: 8845645Abstract: Methods and apparatus for performing knee arthroplasty, including, but not limited to, bicruciate retaining knee arthroplasty, are 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: GrantFiled: May 28, 2010Date of Patent: September 30, 2014Assignee: Smith & Nephew, Inc.Inventors: Zachary Christopher Wilkinson, Brian W. McKinnon, Jeffrey A. Sharp, Katherine S. Anderson, Christopher F. Scifert, Mark Ellsworth Nadzadi, Scott Kennedy Laster
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Publication number: 20140244220Abstract: A system and method for pre-operatively optimizing a fit of an orthopaedic implant relative to a particular individuals anatomy is provided.Type: ApplicationFiled: July 20, 2012Publication date: August 28, 2014Applicant: SMITH & NEPHEW, INC.Inventors: Brian W. McKinnon, Ruxandra C. Marinescu Tanasoca, Randy C. Winebarger, William L. Bowers, Jr., James B. Wiebe, III, Nathaniel M. Lenz, Zachary C. Wilkinson, Sean M. Haddock, Ryan L. Landon
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Patent number: 8728086Abstract: Methods and apparatus for performing knee arthroplasty, including, but not limited to, bicruciate retaining knee arthroplasty, are 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: GrantFiled: May 28, 2010Date of Patent: May 20, 2014Assignee: Smith & Nephew, Inc.Inventors: Richard Michael Smith, Zachary Christopher Wilkinson, Nathaniel Milton Lenz, Brian W. McKinnon, David A. Drucker
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Patent number: 8702712Abstract: A method positions a profile of a prosthetic component on the three-dimensional model of a limb. Patient-specific anatomical data of the limb is gathered. First and second anatomical landmarks are identified to determine a first spatial relationship. A third anatomical landmark is identified to determine a second spatial relationship with respect to the first spatial relationship. The profile of the prosthetic component is positioned in all but one degree of freedom. A fourth anatomical landmark is identified to position the profile of the prosthetic component in the one remaining degree of freedom.Type: GrantFiled: December 8, 2008Date of Patent: April 22, 2014Assignee: Smith & Nephew, Inc.Inventors: Jason Sean Jordan, Michael Dean Hughes, Mark Ellsworth Nadzadi, Brian W. McKinnon, Paul Charles Crabtree, David Timothy Mehl
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Publication number: 20140066720Abstract: A patient-matched cutting block including a surface or point contact features adapted to at least partially conform to or reference a patient specific anatomy. The cutting block having guide slots configured for guiding the movement of cutting tools relative to the patient specific anatomy or features configured to mate to and guide standard cutting guides relative to patient specific anatomy in order to form plateau and eminence resections of the patient specific anatomy.Type: ApplicationFiled: October 14, 2011Publication date: March 6, 2014Applicant: Smith & Nephew, Inc.Inventors: Zachary Christopher Wilkinson, Brian W. McKinnon, David Timothy Mehl, Luke Andrew Gibson, Scott Kennedy Laster
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Publication number: 20140066937Abstract: Instrument that is made to match the perimeter shape of a Patient Specific Knee Implant (PSKI) with features for locating holes in the distal femur such that the posts or lugs in the femoral implant locate the femoral implant centered medial-laterally within an acceptable degree of precision to prevent overhang of either the medial or lateral side of the femoral implant over the perimeter of the distal femur bone resections. Patient specific implant technology, in which a three-dimensional model of at least a portion of a bone is accessed and a three-dimensional solution volume is defined based on resection cuts used in fitting an implant on the portion of the bone. An outline representation of at least a portion of an outer surface of a periphery of the resultant bone volume is determined and the outline representation is used in one or more operations related to instrument matching.Type: ApplicationFiled: September 3, 2013Publication date: March 6, 2014Applicant: SMITH & NEPHEW, INC.Inventors: James B. Wiebe, III, Thomas W. Lux, Randy C. Winebarger, Ruxandra C. Marinescu Tanasoca, Brian W. McKinnon, Roger R. Dees, JR., William L. Bowers, JR., Ryan L. Landon
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Publication number: 20140018813Abstract: A patient matched instrument for a patient's femur is disclosed. The instrument includes a body having a cutting slot and a patient matched surface that mates with the patient's trochlear groove, a first leg portion extending from the body, a second leg portion extending from the body; and each leg portion has a contacting pad for tangential contact with the patient's femoral medial and lateral condyles.Type: ApplicationFiled: July 15, 2013Publication date: January 16, 2014Applicant: Smith & Nephew, Inc.Inventors: Brian W. MCKINNON, Eric S. KENNEDY, Michael J. JACKSON, Randy C. WINEBARGER, Zachary C. WILKINSON
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Publication number: 20140019110Abstract: A method for preoperatively characterizing an individual patient's biomechanic function in preparation of implanting a prosthesis is provided. The method includes subjecting a patient to various activities, recording relative positions of anatomy during said various activities, measuring force environments responsive to said patient's anatomy and affected area during said various activities, characterizing the patient's biomechanic function from said relative positions and corresponding force environments, inputting the measured force environments, relative positions of knee anatomy, and patient's biomechanic function characterization into one or more computer simulation models, inputting a computer model of the prosthesis into said one or more computer simulation models, and manipulating the placement of the prosthesis in the computer simulation using said patient's biomechanic function characterization and said computer model of the prosthesis to approximate a preferred biomechanical fit of the prosthesis.Type: ApplicationFiled: July 25, 2013Publication date: January 16, 2014Applicant: SMITH & NEPHEW, INC.Inventors: Jason K. Otto, Brian W. MCKINNON, Mark Ellsworth NADZADI
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Publication number: 20130336553Abstract: A method includes accessing image data representing tissue and identifying one or more features of the tissue indicated by the image data. A model is selected for the tissue based on the one or more identified features. The image data is segmented and, using the model, one or more anatomical landmarks of the tissue indicated by the segmented image data are identified.Type: ApplicationFiled: August 12, 2011Publication date: December 19, 2013Applicant: SMITH & NEPHEW, INC.Inventors: Mark Joseph Buisseret, Mark Ellsworth Nadzadi, Megan Patrice Rumery, Aashiish Nmi Agnihotri, Brian W. Mckinnon
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Publication number: 20130226190Abstract: Systems and methods for optimizing parameters of an orthopaedic procedure for a particular patient, including parameters relating to the anatomic and biomechanic fit of an implant or implant system implanted into the patient's joint. These systems and methods may utilize patient-specific information gathered pre-operatively in conjunction with optimization algorithms to determine an optimal implant design and an optimal position and orientation for implantation of the implant into the particular patient's joint.Type: ApplicationFiled: August 15, 2011Publication date: August 29, 2013Applicant: SMITH & NEPHEW, INC.Inventors: Brian W. Mckinnon, Ruxandra Cristiana Marinescu Tanasoca, Randy C. Winebarger, William L. Bowers, JR., James Bennett Wiebe, III, Nathaniel Milton Lenz, Zachary Christopher Wilkinson, Sean M. Haddock, Ryan Lloyd Landon
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Patent number: 8521492Abstract: A method for preoperatively characterizing an individual patient's biomechanic function in preparation of implanting a prosthesis is provided. The method includes subjecting a patient to various activities, recording relative positions of anatomy during said various activities, measuring force environments responsive to said patient's anatomy and affected area during said various activities, characterizing the patient's biomechanic function from said relative positions and corresponding force environments, inputting the measured force environments, relative positions of knee anatomy, and patient's biomechanic function characterization into one or more computer simulation models, inputting a computer model of the prosthesis into said one or more computer simulation models, and manipulating the placement of the prosthesis in the computer simulation using said patient's biomechanic function characterization and said computer model of the prosthesis to approximate a preferred biomechanical fit of the prosthesis.Type: GrantFiled: November 22, 2011Date of Patent: August 27, 2013Assignee: Smith & Nephew, Inc.Inventors: Jason K. Otto, Brian W. McKinnon, Mark Ellsworth Nadzadi
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Publication number: 20130203031Abstract: Systems and methods for optimizing parameters of an orthopaedic procedure for a particular patient, including parameters relating to the anatomic and biomechanic fit of an implant or implant system implanted into the patient's joint. These systems and methods may utilize patient-specific information gathered pre-operatively in conjunction with optimization algorithms to determine an optimal implant design and an optimal position and orientation for implantation of the implant into the particular patient's joint.Type: ApplicationFiled: August 15, 2011Publication date: August 8, 2013Applicant: SMITH & NEPHEW, INC.Inventors: Brian W. Mckinnon, Ruxandra Cristiana Marinescu Tanasoca, Randy C. Winebarger, William L. Bowers, JR., James Bennett Wiebe, III, Nathaniel Milton Lenz, Zachary Christopher Wilkinson, Sean M. Haddock, Ryan Lloyd Landon
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Publication number: 20120130687Abstract: A method for preoperatively characterizing an individual patient's biomechanic function in preparation of implanting a prosthesis is provided. The method includes subjecting a patient to various activities, recording relative positions of anatomy during said various activities, measuring force environments responsive to said patient's anatomy and affected area during said various activities, characterizing the patient's biomechanic function from said relative positions and corresponding force environments, inputting the measured force environments, relative positions of knee anatomy, and patient's biomechanic function characterization into one or more computer simulation models, inputting a computer model of the prosthesis into said one or more computer simulation models, and manipulating the placement of the prosthesis in the computer simulation using said patient's biomechanic function characterization and said computer model of the prosthesis to approximate a preferred biomechanical fit of the prosthesis.Type: ApplicationFiled: November 22, 2011Publication date: May 24, 2012Applicant: SMITH & NEPHEW, INC.Inventors: Jason Karl Otto, Brian W. McKinnon, Mark Ellsworth Nadzadi
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Patent number: 8142509Abstract: Embodiments of the present invention provide patellar component designs that are optimally shaped to help reduce shear force and accommodate slight implantation error. Further, they help lessen anterior knee pain, particularly during deep-flexion activities and help ease the transition during the range of knee movement in a controlled way.Type: GrantFiled: January 23, 2007Date of Patent: March 27, 2012Assignee: Smith & Nephew, Inc.Inventors: Brian W. McKinnon, Jason K. Otto
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Patent number: 8078440Abstract: A method for preoperatively characterizing an individual patient's biomechanic function in preparation of implanting a prosthesis is provided. The method includes subjecting a patient to various activities, recording relative positions of anatomy during the various activities, measuring force environments responsive to the patient's anatomy and affected area during the various activities, characterizing the patient's biomechanic function from the relative positions and corresponding force environments, inputting the measured force environments, relative positions of knee anatomy, and patient's biomechanic function characterization into the one or more computer simulation models, inputting a computer model of the prosthesis into the one or more computer simulation models, and manipulating the placement of the prosthesis in the computer simulation using the patient's biomechanic function characterization and the computer model of the prosthesis to approximate a preferred biomechanical fit of the prosthesis.Type: GrantFiled: September 19, 2008Date of Patent: December 13, 2011Assignee: Smith & Nephew, Inc.Inventors: Jason Karl Otto, Brian W. McKinnon, Mark Ellsworth Nadzadi
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Publication number: 20110190898Abstract: Certain embodiments generally provide an improved tibial base member comprising keel portions that allow one or both cruciate ligaments to be preserved. Other embodiments provide improved lateral and/or medial inserts having a mesial lip that helps relieve and/or prevent impingement between the femoral component and the tibial eminence. Other embodiments provide improved femoral components having various chamfers to provide additional clearance with respect to the tibial eminence and posterior cruciate ligament without decreasing bone coverage.Type: ApplicationFiled: January 28, 2011Publication date: August 4, 2011Inventors: NATHANIEL M. LENZ, RICHARD MICHAEL SMITH, ZACHARY CHRISTOPHER WILKINSON, BRIAN W. MCKINNON, ABRAHAM B. SALEHI, JONATHAN KIRK NIELSEN, MICHAEL D. RIES, GERALD J. JERRY