人工膝関節
- 专利权人:
- 京セラメディカル株式会社
- 发明人:
- 橋田 昌彦
- 申请号：
- JP2009020126
- 公开号：
- JP5335458B2
- 申请日:
- 2009.01.30
- 申请国别(地区):
- JP
- 年份:
- 2013
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide an artificial knee joint, enabling deep bending and more easily turned outward in the deep bending than in the slight bending.
SOLUTION: This artificial knee joint includes: a thigh bone component fixed to the thigh bone distal end and a tibia plate fixed to the tibia proximal end to slidably receive the thigh bone component. The thigh bone component includes an inside condylus, an outside condylus and an elliptic spherical sliding part connecting the inside condylus and the rear end of the outside condylus and sliding to the tibia plate when the knee joint bends. The tibia plate includes an inside cavity for receiving the inside condylus, an outside cavity for receiving the outside condylus, and a recessed sliding surface for slidably receiving the elliptic spherical sliding part in the rear between the inside cavity and the outside cavity. The inside cavity and the outside cavity of the tibia plate are formed by curved surfaces, and the radius of the rear area of the outside cavity is larger than that of the rear area of the inside cavity. The rear end part of the outside cavity is chamferred in a plane or a curved surface to form a rear end sliding surface, and the rear end sliding surface is directed to the inside rear.
COPYRIGHT: (C)2010,JPO&INPIT
- 来源网站：
- 中国工程科技知识中心
