Clip stop for a surgical ligating instrument
First Claim
1. A surgical instrument for applying hemostatic clips to vessels within a patient, comprising:
- first and second jaws having opposed clamping surfaces for clamping said clips to a vessel;
means for actuating said jaws between a first normal open position and a second clip-clamping position;
means for storing a plurality of said clips within said instrument;
means for transferring said clips one at a time to said jaws from said storage means; and
stop means located totally within said clamping jaws for allowing a clip to be transferred from said storage means to said clamping jaws while preventing said clip from moving toward said storage means during the operation of said actuating means.
5 Assignments
0 Petitions
Accused Products
Abstract
An improved clip pusher and stop system for a surgical ligator of the type having first and second clip-clamping jaws, a pair of handles to actuate the jaws, a magazine of ligating clips, a pusher track extending to the forward ends of the jaws, a pusher to transfer a clip along the pusher track from the magazine to a forward position between the jaws, and a stop to prevent rearward movement of the clip in the pusher track during the clip-applying and clamping procedure. The improved stop comprises a substantially L-shaped resilient member having a long leg and a short leg. The long stop leg lies along a depression in the first jaw and is affixed near its free end to the first jaw. The short leg extends between the first and second jaws and is receivable in a perforation in the second jaw when the jaws are actuated to clamp a clip. The short leg has an intermediate clip-contacting portion normally extending across the pusher track. The clip-contacting portion is shiftable by an advancing clip out of the pusher track, and returns into the pusher track behind a fully advanced clip to prevent rearward movement of the clip during the clip-applying and clamping procedure and to dislodge the clip from the pusher if adhered thereto by body fluids or the like.
209 Citations
17 Claims
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1. A surgical instrument for applying hemostatic clips to vessels within a patient, comprising:
- first and second jaws having opposed clamping surfaces for clamping said clips to a vessel;
means for actuating said jaws between a first normal open position and a second clip-clamping position;
means for storing a plurality of said clips within said instrument;
means for transferring said clips one at a time to said jaws from said storage means; and
stop means located totally within said clamping jaws for allowing a clip to be transferred from said storage means to said clamping jaws while preventing said clip from moving toward said storage means during the operation of said actuating means. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- first and second jaws having opposed clamping surfaces for clamping said clips to a vessel;
- 8. A clip stop for use in a surgical instrument containing a pair of clip-clamping jaws for applying hemostatic clips to vessels within a living body, said clip stop comprising resilient means mounted within one of said jaws and being shiftable totally within said jaws from a normal position to a retracted position by a clip, as said clip is moved to a forward clip-clamping position between said jaws, said resilient means returning to said normal position when said clip is in said forward clip-clamping position, said normal position preventing rearward motion of said clip during the clip-clamping operation.
- 12. A clip stop for a surgical ligator for applying clamping clips to vessels in a patient'"'"'s body, said ligator being of the type having first and second jaws having opposed clamping surfaces, a pair of handles to actuate said jaws between open and closed clip-clamping positions, a magazine of ligating clips, a pusher track extending along said opposed jaw surfaces to the forward ends of said first and second jaws, a pusher having a free forward end to engage and transfer said clips singly along said pusher track from said magazine to a forward position between said jaws and a stop to prevent rearward movement of said clip in said pusher track when said clip is applied and clamped to a vessel, said stop comprising a substantially L-shaped resilient member having a long leg and a short leg, said long stop leg being mounted in a longitudinal depression in said clamping surface of said first jaw and being affixed near its free end to said first jaw, said short stop leg extending between said opposed clamping surfaces of said first and second jaws and being receivable in a perforation in said second jaw when said jaws are in said closed clip-clamping position, said short stop leg having an intermediate clip-contacting nose portion normally extending across said pusher track just behind said forward position of said clip between said jaws, said nose portion of said stop being shiftable to a retracted position out of said pusher track by an advancing clip, whereby said nose portion prevents rearward movement of said clip during the clip-applying and clamping operation and assures separation of said clip from said free forward end of said pusher if adhered thereto by body fluids.
Specification