Patents by Inventor Peter Stanley Walker
Peter Stanley Walker 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: 11071631Abstract: A total knee replacement prosthesis is presented whose bearing surfaces are derived from an anatomically representative femur and a modified baseline tibial surface. The contacting femoral and tibial bearing surfaces include the inter-condylar as well as condylar regions. A knee replacement implant includes a femoral component and a tibial component. The femoral component includes an outer femoral bearing surface shaped to match an outer bearing surface of an anatomic femur. The tibial component includes a proximal tibial bearing surface based on a proximal baseline tibial bearing surface that is shaped to conform to an envelope of a composite of sequence of positions and orientations of the femoral component throughout a full range of flexure angles and axial rotation angles of the femur relative to the tibia.Type: GrantFiled: March 1, 2018Date of Patent: July 27, 2021Assignee: New York UniversityInventor: Peter Stanley Walker
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Patent number: 10952873Abstract: The present invention relates to devices and methods for balancing joints, including knee joints. The devices convert unequal forces at a joint to a rotation or displacement of a pointer or gauge. The devices are able to display the relative difference in force between the lateral and medial sides of a joint from flexion to extension. In certain aspects, the devices are useful for balancing the knee during total knee surgery. The devices can be inserted between the trial femoral and tibial components of the knee and measures whether one condyle experiences more force than the other.Type: GrantFiled: July 24, 2020Date of Patent: March 23, 2021Assignee: NEW YORK UNIVERSITYInventors: Peter Stanley Walker, Thomas Alfred Einhorn
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Publication number: 20200352556Abstract: The present invention relates to devices and methods for balancing joints, including knee joints. The devices convert unequal forces at a joint to a rotation or displacement of a pointer or gauge. The devices are able to display the relative difference in force between the lateral and medial sides of a joint from flexion to extension. In certain aspects, the devices are useful for balancing the knee during total knee surgery. The devices can be inserted between the trial femoral and tibial components of the knee and measures whether one condyle experiences more force than the other.Type: ApplicationFiled: July 24, 2020Publication date: November 12, 2020Inventors: Peter Stanley Walker, Thomas Alfred Einhorn
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Patent number: 10758375Abstract: The present invention relates to devices and methods for balancing joints, including knee joints. The devices convert unequal forces at a joint to a rotation or displacement of a pointer or gauge. The devices are able to display the relative difference in force between the lateral and medial sides of a joint from flexion to extension. In certain aspects, the devices are useful for balancing the knee during total knee surgery. The devices can be inserted between the trial femoral and tibial components of the knee and measures whether one condyle experiences more force than the other.Type: GrantFiled: January 25, 2019Date of Patent: September 1, 2020Assignee: NEW YORK UNIVERSITYInventors: Peter Stanley Walker, Thomas Alfred Einhorn
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Publication number: 20200000598Abstract: A replacement knee implant has a femoral implant and a tibial implant, each of which are inset in a bone surface. The tibial implant is generally elongated with one end rounded and an opposite end conforming to the shape of the tibia, and is made of a metal alloy or a ceramic. The upper surface is dished while the lower surface is planar and can be parallel or sloped relative to the upper surface, and can have a keel for fixation. The femoral implant for implementation in a femoral condyle is rounded such that, when implemented, the femoral implant is flush at the anterior and posterior sides and protruding away from the femur between the anterior and posterior ends. The femoral implant can have an elongated keel for extending into the femur, and can be made from a highly cross-linked polyethylene.Type: ApplicationFiled: September 13, 2019Publication date: January 2, 2020Applicant: New York UniversityInventors: Peter Stanley Walker, Joseph A. Bosco
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Patent number: 10441428Abstract: A replacement knee implant has a femoral implant and a tibial implant, each of which are inset in a bone surface. The tibial implant is generally elongated with one end rounded and an opposite end conforming to the shape of the tibia, and is made of a metal alloy or a ceramic. The upper surface is dished while the lower surface is planar and can be parallel or sloped relative to the upper surface, and can have a keel for fixation. The femoral implant for implementation in a femoral condyle is rounded such that, when implemented, the femoral implant is flush at the anterior and posterior sides and protruding away from the femur between the anterior and posterior ends. The femoral implant can have an elongated keel for extending into the femur, and can be made from a highly cross-linked polyethylene.Type: GrantFiled: May 3, 2011Date of Patent: October 15, 2019Assignee: New York UniversityInventors: Peter Stanley Walker, Joseph A. Bosco
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Patent number: 10413414Abstract: A total knee replacement, comprising a femoral and a tibial component in articulating contact that can restore normal joint function. The articulation between the two components is controlled by four guide surfaces.Type: GrantFiled: July 8, 2016Date of Patent: September 17, 2019Assignee: NEW YORK UNIVERSITYInventor: Peter Stanley Walker
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Publication number: 20190224016Abstract: The present invention relates to devices and methods for balancing joints, including knee joints. The devices convert unequal forces at a joint to a rotation or displacement of a pointer or gauge. The devices are able to display the relative difference in force between the lateral and medial sides of a joint from flexion to extension. In certain aspects, the devices are useful for balancing the knee during total knee surgery. The devices can be inserted between the trial femoral and tibial components of the knee and measures whether one condyle experiences more force than the other.Type: ApplicationFiled: January 25, 2019Publication date: July 25, 2019Inventors: Peter Stanley Walker, Thomas Alfred Einhorn
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Publication number: 20180256345Abstract: A total knee replacement prosthesis is presented whose bearing surfaces are derived from an anatomically representative femur and a modified baseline tibial surface. The contacting femoral and tibial bearing surfaces include the inter-condylar as well as condylar regions.Type: ApplicationFiled: March 1, 2018Publication date: September 13, 2018Inventor: Peter Stanley Walker
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Patent number: 9931215Abstract: A total knee replacement prosthesis is presented whose bearing surfaces are derived from an anatomically representative femur and a modified baseline tibial surface. The contacting femoral and tibial bearing surfaces include the inter-condylar as well as condylar regions. The modified baseline tibial surface is generated by modifying a baseline tibial surface. For example, the baseline tibial surface can be flattened mathematically to generate the modified baseline tibial surface.Type: GrantFiled: October 11, 2011Date of Patent: April 3, 2018Assignee: New York UniversityInventor: Peter Stanley Walker
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Patent number: 9907662Abstract: A total knee replacement whose bearing surfaces are derived from an anatomically representative femur and a modified baseline tibial surface. The contacting femoral and tibial bearing surfaces include the inter-condylar as well as condylar regions. The modified baseline tibial surface is generated by modifying a baseline tibial surface. For example, the baseline tibial surface can be flattened mathematically to generate the modified baseline tibial surface.Type: GrantFiled: May 2, 2017Date of Patent: March 6, 2018Assignee: New York UniversityInventor: Peter Stanley Walker
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Publication number: 20170231772Abstract: A total knee replacement whose bearing surfaces are derived from an anatomically representative femur and a modified baseline tibial surface. The contacting femoral and tibial bearing surfaces comprise the inter-codylar as well as condylar regions.Type: ApplicationFiled: May 2, 2017Publication date: August 17, 2017Applicant: New York UniversityInventor: Peter Stanley Walker
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Publication number: 20170020674Abstract: A total knee replacement, comprising a femoral and a tibial component in articulating contact that can restore normal joint function. The articulation between the two components is controlled by four guide surfaces.Type: ApplicationFiled: July 8, 2016Publication date: January 26, 2017Applicant: New York UniversityInventor: Peter Stanley Walker
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Patent number: 9125747Abstract: A replacement knee implant has a femoral implant and a tibial implant, each of which are inset in a bone surface. The tibial implant is generally elongated with one end rounded and an opposite end conforming to the shape of the tibia, and is made of a metal alloy or a ceramic. The upper surface is dished while the lower surface is planar and can be parallel or sloped relative to the upper surface. The femoral implant for implementation in a femoral condyle is rounded such that, when implemented, the femoral implant is flush at the anterior and posterior sides and protruding away from the femur between the anterior and posterior ends. The femoral implant can have an elongated keel for extending into the femur, and can be made from a highly cross-linked polyethylene.Type: GrantFiled: November 7, 2013Date of Patent: September 8, 2015Assignee: NEW YORK UNIVERSITYInventors: Peter Stanley Walker, Joseph A. Bosco
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Patent number: 9023111Abstract: A total knee replacement prosthesis comprising condylar and intercondylar bearing surfaces configured to manage anterior/posterior displacement between the articulating femoral and tibial components.Type: GrantFiled: July 31, 2013Date of Patent: May 5, 2015Assignee: New York UniversityInventor: Peter Stanley Walker
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Publication number: 20150057759Abstract: A method and apparatus for correcting varus deformity comprises cutting a horizontal slot in the upper medial portion of the tibia. The slot is opened by the application of external force and a wedge is inserted to maintain the opening. The opening of the slot corrects the position and orientation of the deformed medial plateau.Type: ApplicationFiled: August 12, 2014Publication date: February 26, 2015Applicant: New York UniversityInventor: Peter Stanley Walker
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Publication number: 20140067079Abstract: A replacement knee implant has a femoral implant and a tibial implant, each of which are inset in a bone surface. The tibial implant is generally elongated with one end rounded and an opposite end conforming to the shape of the tibia, and is made of a metal alloy or a ceramic. The upper surface is dished while the lower surface is planar and can be parallel or sloped relative to the upper surface. The femoral implant for implementation in a femoral condyle is rounded such that, when implemented, the femoral implant is flush at the anterior and posterior sides and protruding away from the femur between the anterior and posterior ends. The femoral implant can have an elongated keel for extending into the femur, and can be made from a highly cross-linked polyethylene.Type: ApplicationFiled: November 7, 2013Publication date: March 6, 2014Applicant: NEW YORK UNIVERSITYInventors: Peter Stanley Walker, Joseph A. Bosco
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Publication number: 20140046452Abstract: A total knee replacement prosthesis comprising condylar and intercondylar bearing surfaces configured to manage anterior/posterior displacement between the articulating femoral and tibial components.Type: ApplicationFiled: July 31, 2013Publication date: February 13, 2014Applicant: New York UniversityInventor: Peter Stanley Walker
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Patent number: 8603179Abstract: A replacement knee implant has a femoral implant and a tibial implant, each of which are inset in a bone surface. The tibial implant is generally elongated with one end rounded and an opposite end conforming to the shape of the tibia, and is made of a metal alloy or a ceramic. The upper surface is dished while the lower surface is planar and can be parallel or sloped relative to the upper surface. The femoral implant for implementation in a femoral condyle is rounded such that, when implemented, the femoral implant is flush at the anterior and posterior sides and protruding away from the femur between the anterior and posterior ends. The femoral implant can have an elongated keel for extending into the femur, and can be made from a highly cross-linked polyethylene.Type: GrantFiled: March 13, 2012Date of Patent: December 10, 2013Assignee: New York UniversityInventors: Peter Stanley Walker, Joseph A. Bosco
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Publication number: 20130204382Abstract: A total knee replacement prosthesis is presented whose bearing surfaces are derived from an anatomically representative femur and a modified baseline tibial surface. The contacting femoral and tibial bearing surfaces comprise the inter-condylar as well as condylar regions.Type: ApplicationFiled: October 11, 2011Publication date: August 8, 2013Applicant: New York UniversityInventor: Peter Stanley Walker