Surgical ligating instrument

• US 4,662,373 A
• Filed: 11/04/1985
• Issued: 05/05/1987
• Est. Priority Date: 06/29/1981
• Status: Expired due to Term

• Current Assignee: Sherwood Services AG
• Original Assignee: American Colloid Company (Minerals Technologies Incorporated)
• Inventors: Brumaghim, Milton W., Montgomery, John R., Deniega, Jose C.
• Primary Examiner(s): Thaler, Michael H.
• Application Number:
  US06/795,044
• Time in Patent Office: 547 Days
• Field of Search: 128/325, 128/334 R, 128/326, 227/DIG. 1, 29/243.56, 72/410
• US Class Current: 606/143
• CPC Class Codes: A61B 17/0682 for applying U-shaped staples or clamps, e.g. without a forming anvil
• CPC Class Codes: Y10T 29/53783 Clip applier

Abstract

An improved surgical ligating instrument has been invented. The improvements comprise crimping means having canted jaws and advancing means having a clip actuator, said actuator having a first and second pawl in alternate relationship.

A surgical ligating instrument has also been invented. The instrument comprises

a. a housing having a force activating and translating mechanism; b. loading mechanism having an injector, the terminal end adjacent a single clip; c. an advancing mechanism having a pair of aligned members, the initial end of said members contained in said housing and the terminal end containing jaws; a clip actuator rotatably mounted adjacent the initial end of said jaws; a spring, a pusher at the terminal end of said spring, and a plurality of clips, the rearmost clip adjacent said pusher and the frontmost clip contained by said actuator; and d. a crimping mechanism having a crimp bar.

Claims

1. A surgical ligating instrument comprising

a. a housing having a first and a second force activating and force translating means to effect a first and a second force, respectively;

b. loading means having an injector, the initial end of said injector adjacent said first translating means and the terminal end containing a single clip;

c. advancing means having a pair of aligned members, each member containing an internal slot, the initial end of said members contained in said housing and the terminal end having canted jaws, said jaws having no rectilinear motion, whereby a partially crimped clip can be maintained in said jaws;

a clip actuator rotatably mounted adjacent the proximal end of said jaws, said actuator having a first and a second pawl in alternate relationship;

a spring, the proximal end contained in said housing, a pusher at the terminal end of said spring, and a plurality of clips, the rearmost clip adjacent said pusher and the frontmost clip contained by said actuator whereby said actuator can repeatedly release said frontmost clip of said plurality of clips, said spring, pusher and clips contained by the internal slots of said members; and

d. crimping means having a movable crimp bar, the initial end adjacent said second translating means and the terminal end adjacent said jaws.

2. An instrument of claim 1 wherein said injector contains a flanged portion and said pusher contains an opening whereby said flanged portion is held by said opening after said rearmost clip is crimped by said jaws.

3. An instrument of claim 2 wherein said first activating means is simultaneously locked as said flanged portion is held by said opening.