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Automatic laparoscopic ligation clip applicator

  • US 5,904,693 A
  • Filed: 11/23/1994
  • Issued: 05/18/1999
  • Est. Priority Date: 04/27/1993
  • Status: Expired due to Term
First Claim
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1. A ligation clip applicator for applying each of a plurality of sequentially fed two-piece ligation clips, comprising:

  • a handle assembly having an actuator;

    an elongated shaft having a proximal end connected to said handle assembly, said shaft housing a plurality of two-piece ligation clips, with a distal-most ligation clip in said shaft disposed in a feed position; and

    actuating means, disposed within said shaft, for assembling and sequentially feeding the ligation clips, said actuating means including a clamp for engaging a first piece of the ligation clip disposed in the feed position, a slidable driver for driving a second piece of the ligation clip disposed in the feed position, and a slidable cam operably engaged with said clamp and said driver and operable by actuating said actuator, wherein upon actuation of said cam in a cam-forward stroke said clamp engages the first piece of the ligation clip and holds it stationary and said driver drives the second piece in a forward direction to compress the first piece and close the ligation clip,said actuating means further comprises holding means having retaining springs for preventing movement of the ligation clips in a rearward direction, and an advancer operably connected to said cam and slidable relative to the ligation clips for sequentially advancing the ligation clips in the forward direction and positioning a next-to-distal-most ligation clip in the feed position in said shaft.

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