| 摘要 |
<p>A surgical instrument (10) is provided for use in performing endoscopic procedures having a handle (24, 26) and an elongate tubular member (14) having a proximal end coupled with the handle for being disposed externally of the anatomical cavity and a distal end for being disposed within the anatomical cavity. The distal end further includes a pair of opposed, relatively movable jaws (18, 20) that form a grasping portion operable by manipulation of the handle to releasably grasp a releasable trocar (83). The releasable trocar (83) has a complementarily shaped shank (87), a relatively sharp tip (92) and may include a pair of blunt-edge tissue separators (94) that project outwardly from the outer surface of the trocar (83). In an alternative embodiment, the relatively movable jaws (118, 120) define (i) a grasping portion operable by manipulation of the handle (24, 26) to grasp or cut objects; and (ii) a pair of blunt-edge tissue separators (124) that project outwardly from the outer surface of the jaws (118, 120) so that when the jaws are in a closed position they may be used as a trocar.</p> |
