| 摘要 |
<p>An apparatus for mounting a surgical instrument to a stationary member comprising an arm adapted to support the surgical instrument, a mounting member fixedly attached to the stationary member, and a rotatable positioning segment for coupling the arm to the mounting member so that the arm is rotatable to a selected one of a plurality of desired radial positions relative to the mounting member and is detachably coupled to the mounting member in the desired radial position.</p> |
