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Tibia supporting assembly

A tibial tray and component technology, applied in medical science, prostheses, elbow joints, etc., can solve the problems of not being able to use biological fixation at the same time, and achieve the effects of avoiding bone loss, reducing maintenance costs, and simple operation

Pending Publication Date: 2021-03-26
上海联影智融医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide a tibial bearing component for the problem that the traditional tibial component cannot simultaneously take advantage of the advantages of biological fixation of bone ingrowth and reduce wear after being fixed to human tissue.

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with accompanying drawing.

[0039] In order to facilitate the understanding of the present invention, various embodiments of the present invention defined by the claims will be described more fully below with reference to the relevant drawings. Preferred embodiments of the invention have been shown in the drawings, which contain various specific details to facilitate that understanding but which should be regarded as exemplary only. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Accordingly, those of ordinary skill in the art will recognize that changes and modifications of the various embodiments described herein can be made without departing from the scope of the invention as defined in the appended claims. Also, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

[0040]...

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Abstract

The invention relates to a tibia supporting assembly. The tibia supporting assembly comprises a tibia support and a supporting plate, wherein a first connecting surface and an implant surface which can be implanted into human tissue are formed on the tibia support; a second connecting surface and a supporting surface which can cooperate with a tibia liner are formed on the supporting plate, and the second connecting surface is connected with the first connecting surface. According to the embodiment, the tibia support and the supporting plate can be made of two different materials; the tibia support is made of a material with a better bone ingrowth effect and small stress shielding; the supporting plate is made of a wear-resistant material; frictional wear between the wear-resistant supporting plate and the tibia liner is small; the supporting plate has good wear resistance, and the service life is prolonged. On one hand, after the tibia support is implanted into the tibia, the ingrowthof the tibia to the tibia support is facilitated, and on the other hand, sliding friction between the supporting plate made of the wear-resistant material and the tibia liner is small, so that the advantage of biological fixation bone ingrowth can be brought into play on the whole, and abrasion of the prosthesis is effectively reduced.

Description

technical field [0001] The invention relates to the field of bone tissue material design, in particular to tibial bearing components. Background technique [0002] The existing mobile platform type unicondylar prosthetic tibial components usually use cobalt-chromium alloy to make the tibial tray, although the sliding friction and wear between it and the tibial liner made of polyethylene is reduced, but due to the bone ingrowth of the cobalt-chromium alloy material The effect is poor, which leads to the disadvantages of easy loosening and high revision rate of this type of prosthesis. During revision, the tibial tray needs to be removed from the patient's tibia, which leads to large bone loss of the patient and the tibial tray needs to be customized. In order to solve the problem of poor fixation between the tibial component of the movable platform type knee joint prosthesis and the patient's own tibial tissue, methods such as optimizing the column or keel structure on the bo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/38
CPCA61F2/389A61F2/30771A61F2002/30784A61F2002/3093A61F2002/30321A61F2002/30004A61F2002/30026
Inventor 徐寒冬张磊
Owner 上海联影智融医疗科技有限公司
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