Knee joint prosthesis

A knee joint prosthesis and tibia technology, applied in the field of knee joint prostheses, can solve the problems of wear of femoral condyle and gasket, and achieve the effects of reducing wear, prolonging life and reducing contact stress.

Active Publication Date: 2015-08-19
BEIJING AKEC MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a knee joint prosthesis to solve the serious problem of wear between the femoral condyle and the spacer in the prior art

Method used

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  • Knee joint prosthesis
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Embodiment Construction

[0022] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0023] Such as figure 1 and figure 2 As shown, the present invention provides a knee joint, which includes a tibial spacer 10 , a tibial tray 20 and a connecting part 30 . Specifically, the tibial tray 20 is rotatably arranged relative to the tibial tray 10, and the height-adjustable connection portion 30 is arranged between the tibial tray 10 and the tibial tray 20 to adjust the distance between the tibial tray 10 and the tibial tray 20. .

[0024] In this embodiment, a height-adjustable connecting portion is provided between the tibial spacer and the tibial support, and the tibial spacer and the tibial support are rotatably arranged. The knee joint prosthesis set in this way not only has...

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Abstract

The invention provides a knee joint prosthesis comprising a tibial pad, a tibial support and a connecting part. The tibial support is rotatably relative to the tibial pad. The connecting part is disposed between the tibial pad and the tibial support in a height adjustable manner and is used to adjust a distance between the tibial pad and the tibial support. The height adjustable connecting part is disposed between the tibial pad and the tibial support; the tibial pad is rotatably relative to the tibial support. The knee joint prosthesis is elastic and rotatable, contact stress of a knee joint is reduced, joint wear is reduced, and the life of the knee joint prosthesis is longer.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a knee joint prosthesis. Background technique [0002] The meniscus with elastic function inside the normal human knee joint, due to the existence of the meniscus, can make the knee joint play a role in stabilizing the load when transmitting the load, thus ensuring the life of the knee joint. [0003] In the knee replacement prosthesis, there is a rigid direct contact between the tibial component and the femoral component, that is, there is a rigid contact between the metal femoral condyle and the tibial plateau component and the polyethylene spacer, and the elasticity is achieved only by the weak deformation of the polyethylene material Function, the wear between the femoral condyle and the spacer is serious, which reduces the life of the spacer, and the weak deformation of the spacer cannot realize the function of the natural meniscus, which brings inconvenience to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/38
Inventor 刘敏
Owner BEIJING AKEC MEDICAL
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