Thin Active/Fixed Prosthetic Knee System

A knee prosthesis and supporting component technology, applied in the field of orthopaedic prosthesis, can solve problems such as instability

Inactive Publication Date: 2018-03-30
DEPUY (IRELAND) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, rotation of the tibial insert relative to the tibial tray can create an unstable knee

Method used

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  • Thin Active/Fixed Prosthetic Knee System
  • Thin Active/Fixed Prosthetic Knee System
  • Thin Active/Fixed Prosthetic Knee System

Examples

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Embodiment Construction

[0032] While the inventive concept is susceptible to various modifications and alternative forms, specific exemplary embodiments of the invention have been shown by way of example in the drawings and will be described in detail herein. It should be understood, however, that there is no intent to limit the disclosure to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents and other modifications falling within the spirit and scope of the invention as defined by the appended claims. forms and alternative forms.

[0033] Terms indicating anatomical references, such as anterior, posterior, medial, lateral, proximal, distal, superior, inferior. These terms have well-known meanings both in the study of anatomy and in the fields of orthopedic surgery. Such anatomical reference terms used in the specification and claims are intended to be accorded their commonly understood meanings unless otherwise indicated.

[0034] see now...

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Abstract

The present invention provides a knee prosthesis system having a tibial component with a frame having a medial opening and a lateral opening to receive a medial bearing member and a lateral bearing member. The support member has a distal surface that is exposed when assembled with the frame and a peg extending distally from the distal surface. The system optionally includes a tibial base plate having an elongated curved receptacle to receive the pegs and allow the frame and bearing assembly to rotate when mounted to the base plate. Support members of different thicknesses can be selectively locked to the frame. The different sized tibial components have elements of common size, shape, and positioning, enabling multiple sized tibial components to fit on the same prepared tibial surface.

Description

technical field [0001] The present disclosure relates generally to orthopedic prostheses, and more particularly to knee prostheses. In particular, the present disclosure relates to tibial components and bearing components of knee prosthesis systems. Background technique [0002] Movements of the natural human knee (eg, flexion and extension) involve movement of the femur and tibia. Specifically, the distal end of the femur and the proximal end of the tibia articulate relative to each other through a complex series of motions during flexion and extension. Injury (eg, trauma) or disease can damage the bone, articular motor cartilage, and ligaments of the knee, which can ultimately affect the natural knee's ability to function in the manner described above. Accordingly, knee prostheses have been developed and implanted into surgically prepared ends of the femur and tibia. [0003] A typical knee prosthesis for total knee replacement includes, for example, a tibial component ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/38A61B17/16A61B17/17A61F2/30A61F2/46
CPCA61B17/1675A61B17/1764A61B2017/1602A61F2002/30607A61F2002/4631A61F2002/30324A61F2002/30332A61F2002/30364A61F2/3868A61F2/389
Inventor J.F.里扎克S.A.哈泽布劳克
Owner DEPUY (IRELAND) LTD
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