| 摘要 |
A locking device for use in a trocar inserted into a body cavity. The locking device include various operating components that may be easily manipulated and recognized by a surgeon during complicated surgery, and a locking portion secured in the trocar. The locking portion may include internal threads formed only on a head, a cam operated element, resilient fingers, a collet-type locking device, or a frictional detent or opening, quickly moved into a locking position against any type of instrument passing through the trocar into the body cavity. The portion of the locking device contacting the instrument must be sized and dimensioned to provide a firm grip in the locking position, without damaging or marring the instrument against which it is locked.
|
