| 摘要 |
<p>The present invention relates to an apparatus for endoscopic application of surgical clips to body tissue. The apparatus comprises: a) a handle portion (12) including a movable handle (14) defining a single closing stroke between an open position and a closed position, the closing stroke including an initial throw, an intermediate throw, and a final throw; b) a body portion (20) extending distally from the handle portion and defining a longitudinal axis; c) a plurality of surgical clips (150) disposed within the body portion; d) a jaw assembly (18) including first and second jaw portions (24a, 24b) movably mounted to be movable between a spaced position and an approximated position, each of the first and second jaw portions including a shank portion (78a, 78b) having a position tab (90a, 90b) extending therefrom; e) a thrust bar (72) positioned within the body portion (20), the thrust bar including jaw closing structure (100) positioned to engage the jaw assembly, the thrust bar being movable between advanced and retracted positions to move the first and second jaw portions between the spaced and approximated positions; and f) a clip advancer (136) configured to advance a clip to the jaw assembly. The apparatus is characterised in that the thrust bar (72) includes a channel structure (98) configured to slidably receive the position tabs of the shank portions of the first and second jaw portions to provide controlled movement of the first and second jaw portions between the spaced and approximated positions. <IMAGE></p> |
