| 摘要 |
The present invention relates to an operation tower which grips a correction screw and functions as a worktable for other external instruments during a minimally invasive surgery. The present invention includes: an outer pipe; an inner pipe provided in a slidable manner within the outer pipe; a driving sleeve rotatably connected to the outer pipe and screwed together with the inner pipe so as to move the inner pipe upward and downward along the lengthwise direction thereof during rotation; and a screw holder, provided in the lower end portion of the inner pipe, which is widened by the elasticity thereof when taken out of the outer pipe so as to be capable of accommodating the head portion of the correction screw, and which is contracted when introduced into the outer pipe so as to be capable of tightening the head portion. |
