Title:
セメントレス型人工股関節用ステム
Document Type and Number:
Japanese Patent JP4895588
Kind Code:
B2
Abstract:
An artificial cement-less hip prosthesis stem comprises an inner construct 7 which reacts with a load acting on a hip joint and an outer construct 8 for transmitting the load acting on the inner construct to a femur 1. The inner construct has an inner body 7B which reacts with the load transmitted from a neck 7A. The outer construct has both an outer body 8A which is bell mouth-shaped toward an epiphysis so as to surround the inner body 7B and a leg 8B extending toward a medullary cavity. The torsional rigidity given to the proximal end and the distal end of the outer body 8A and the leg 8B is regulated so as to be lower than the torsional rigidity given to an intermediate portion 18 of the outer body 8A.
Inventors:
Bando Shunichi
Zako Masaru
Nobuhiko Kanno
Zako Masaru
Nobuhiko Kanno
Application Number:
JP2005345097A
Publication Date:
March 14, 2012
Filing Date:
November 30, 2005
Export Citation:
Assignee:
BI Tech Co., Ltd.
International Classes:
A61F2/32; A61F2/36; A61L27/00
Domestic Patent References:
| JP5092020A | ||||
| JP8017787B2 |
Foreign References:
| WO2005034818A1 | ||||
| WO2005089675A1 | ||||
| DE2842847A |
Attorney, Agent or Firm:
Katsutoshi Yoshimura