| 摘要 |
<p>A surgical instrument including a sleeve through which a tool is inserted and having a rotatable housing to facilitate in situ tool exchange and a pair of handles rotatable among at least two lockable positions. One handle includes a latching mechanism and the other includes a locking part for one-handed locking/unlocking. The handles are coupled to drums connected by an inner shaft having winglets for locking the handles to each other or to the housing for rotating the handles about the instrument or relative to each another. Optionally, a knob is coupled to the housing via a bearing shaft having a groove for receiving a movable locking plate, which is movable between locked and unlocked positions such that when locked the tool received in the sleeve is retained within the instrument and when unlocked the sleeve is separable from the remainder of the instrument.</p> |
