Invention Grant
- Patent Title: Anatomical motion hinged prosthesis
- Patent Title (中): 解剖运动铰链假体
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Application No.: US12307102Application Date: 2007-06-30
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Publication No.: US08523950B2Publication Date: 2013-09-03
- Inventor: Roger Ryan Dees , Paul Charles Crabtree, Jr. , Jonathan Kirk Nielsen
- Applicant: Roger Ryan Dees , Paul Charles Crabtree, Jr. , Jonathan Kirk Nielsen
- Applicant Address: US TN Memphis
- Assignee: Smith & Nephew, Inc.
- Current Assignee: Smith & Nephew, Inc.
- Current Assignee Address: US TN Memphis
- Agency: Fish & Richardson P.C.
- International Application: PCT/US2007/072611 WO 20070630
- International Announcement: WO2008/005905 WO 20080110
- Main IPC: A61F2/38
- IPC: A61F2/38
Abstract:
A hinged knee prosthesis (10) comprises a tibial component (16) and a femoral component (14). The tibial component (16) is configured to attach to a tibia. The tibial component has a bearing surface (128). The femoral component (14) is configured to hingedly attach to the tibial component (16) and rotate relative to the tibial component (16). The femoral component (14) comprises a medial condyle (30) and a lateral condyle (32). The medial and lateral condyles (30 and 32) have an eccentric sagittal curvature surface (50) configured to rotate and translate on the bearing surface (128) of the tibial component (16). A method of rotating a hinged knee (10) through a range of flexion is provided. The method fixedly attaches a femoral component (14) to a tibial component (16). Axial rotation of the femoral component (14) is induced relative to the tibial component (16) when the hinged knee (10) is flexed.
Public/Granted literature
- US20100131070A1 ANATOMICAL MOTION HINGED PROSTHESIS Public/Granted day:2010-05-27
Information query
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