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Patent Searching and Data


Title:
KNEE PROSTHESIS
Document Type and Number:
WIPO Patent Application WO/2021/168822
Kind Code:
A1
Abstract:
Provided is a knee prosthesis, comprising: a tibial plateau (10); a femoral condyle component (20), located above the tibial plateau (10), the femoral condyle component (20) comprising a medial condyle articular surface (21) and a lateral condyle articular surface (22), and there being a height difference H between the medial condyle articular surface (21) and the lateral condyle articular surface (22); and a spacer component (30), located between the tibial plateau (10) and the femoral condyle component (20), the spacer component (30) comprising a medial spacer (34) matching the medial condyle articular surface (21) and a lateral spacer (35) matching the lateral condyle articular surface (22), the upper surface of the tibial plateau (10) being provided with a first spherical convex surface (11) at a position corresponding to the lateral spacer (35), the lateral spacer (35) being movably provided on the tibial plateau (10), and the lower surface of the lateral spacer (35) being provided with a first spherical concave surface (31) matching the first spherical convex surface (11). The prosthesis effectively solves the problem in the prior art that knee prostheses are prone to wear.

Inventors:
ZHANG WEIPING (CN)
Application Number:
PCT/CN2020/077251
Publication Date:
September 02, 2021
Filing Date:
February 28, 2020
Export Citation:
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Assignee:
BEIJING AK MEDICAL CO LTD (CN)
International Classes:
A61F2/38
Foreign References:
CN111184598A2020-05-22
CN108186167A2018-06-22
US20030153977A12003-08-14
CN105030384A2015-11-11
CN205849594U2017-01-04
CN101214175A2008-07-09
CN106109063A2016-11-16
CN109620480A2019-04-16
US20010021877A12001-09-13
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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