| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a tibia prosthesis device having a base member and a supporting member coupled with each other in such a manner that this supporting member is held in a perpendicular direction and a torsional direction by the base member. SOLUTION: This tibia prosthesis device has the base supporting member 10 which has a base end side supporting surface and a projecting part 16 which is positioned at the center substantially bisecting this end side supporting surface 12 and is formed to a flared shape in a base end direction. The device has a supporting surface member 30 having a pair of the end side supporting surfaces and a groove 42 on a front end side which is tapered in a front end direction and is so dimensioned as to slidably enclose the projecting part 16.</p> |
