Patent ID: 8926621
Filing Date: 2015-01-06
Classification: A61F

Abstract:
1. A surgical instrument for acetabular cup implantation, which comprises: an acetabular cup having a hole thereon; a shell body having a handle and an extension portion, wherein the extension portion has an end to cap the acetabular cup; and a drive shaft being partly assembled in the shell body, comprising: wherein the handle bar with shifting angles drives the pivot forward and backward, in a forward position the handle bar moves the drive rod forward and is able to rotate the acetabular cup via the drive rod, and in a backward position the handle bar shifts the drive rod resulting in the acetabular cup being engaged to the end of extension portion; wherein the drive rod comprises: a first drive rod having the connector; a second drive rod using a first universal joint to connect the first drive rod; a third drive rod using a second universal joint to connect the second drive rod; a fourth drive rod using a third universal joint to connect the third drive rod; and a fifth drive rod having one end using a fourth universal joint to connect the fourth drive rod and another distal end connecting the pivot.