CONSTITUENT FOR TIBIA OF KNEE PROSTHESES MEMBER, ITS ASSEMBLING TOOL, AND ITS USAGE

摘要

PROBLEM TO BE SOLVED: To provide a tibia prosthesis device capable of doing invasive surgical approach to the minimum.

SOLUTION: The constituent for tibia of knee prosthesis device is equipped with a tray 10 having almost flat top and bottom surfaces and an extension member 40 which forms a long main body having top and bottom end parts. The tray is equipped with a boss 18, which projects to the outside and has an outer wall with a cylindrical part and a taper part. The extension part is equipped with a bore 26 which extends to the inside to form a bore wall, and the bore wall has a cylindrical part and a taper part. The extension part is engaged to be detachable with the tray in the condition that the boss is accepted in the bore. The taper part of the boss is placed on the taper part of the bore, and at the same time, the cylindrical part of the boss is accepted into the cylindrical part of the bore under pressing condition to form a connection part between the tray and the extension part.

COPYRIGHT: (C)2004,JPO&NCIPI