Title:
【発明の名称】人工関節
Document Type and Number:
Japanese Patent JP2960078
Kind Code:
B2
Abstract:
A controlled stiffness elongated implant for use in the hip or other appropriate body joint. In the instance of the hip, a ball member fixed to the femur is rotatably engaged with a cup-shaped socket member fixed to the acetabulum of the pelvic bone. The ball member is mounted on one end of a femoral component which has an elongated stem receivable in the intramedullary canal of the femur. The stem has a generally longitudinally directed reduced mid-stem section. The dimension of the reduced mid-stem section is uniform or variable between the proximal and distal ends so as to affect the mass moment of inertia at any given location along the length of said stem to thereby achieve an optimal stem flexibility.
Inventors:
TOTSUDO SUMISU
DEIUITSUDO SHII KERUMAN
DEIUITSUDO SHII KERUMAN
Application Number:
JP22637689A
Publication Date:
October 06, 1999
Filing Date:
August 31, 1989
Export Citation:
Assignee:
DEYUPUI INC
International Classes:
A61F2/36; A61F2/32; A61F2/00; (IPC1-7): A61F2/36; A61F2/32
Other References:
【文献】独国特許公開2247721(DE,A1)
Attorney, Agent or Firm:
Motohiko Fujimura (1 outside)