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US6024748: Singleshot anastomosis instrument with detachable loading unit and method

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Filing Information

Inventor(s) Scott E. Manzo · Richard D. Gresham · Kevin Sniffin · Hinchliffe; Peter W.J. ·
Assignee(s) United States Surgical Corporation ·
Primary Examiner Gary Jackson ·
Application Number US8877701
Filing date 06/17/1997
Issue date 02/15/2000
Predicted expiration date 07/23/2016
U.S. Classifications 606/153  · 206/340  ·
International Classifications A61B 1704  ·
Kind CodeA
International Classifications 606153;142;143 ·
Related U.S. Application DataCROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of U.S. patent application Ser. No. 08/685,385, filed Jul. 23, 1996, U.S. Pat. No. 5,707,380 entitled "Anastomosis Instrument and Method", the disclosure of which is incorporated by reference herein.
30 Claims, No Drawings


Abstract

There is disclosed a surgical instrument and loading unit for performing an anastomosis of first and second blood vessels. The surgical instrument includes a handle assembly and a body portion extending distally from the handle assembly. The detachable loading unit includes an anvil releasably engagable with a distal end of the body portion and having a plurality of fasteners disposed in channels about the circumference of a distal end of the anvil. A pusher is slidably mounted over the anvil such that distal movement of the pusher in response to actuation of the handle assembly cams the fasteners between the anvil and a distal end of the pusher to simultaneously crimp the fasteners about tissue. A method of performing an anastomosis is also disclosed and includes positioning a first vessel in the loading unit and partially inserting the first vessel through an opening in a second vessel. The surgical instrument is subsequently attached to the loading unit and the handle assembly is actuated to crimp fasteners about the first and second vessels to form an anastomosis.

Independent Claims | See all claims (30)

  1. 1. A detachable loading unit for use with a surgical fastener apparatus comprising:a) a generally cylindrical anvil member having structure for releasably engaging a portion of a surgical fastener apparatus;b) a plurality of surgical clips circumferentially disposed on the anvil member; andc) a pusher coaxially mounted with respect to the anvil member such that the clips are held between a distal end of the anvil and a distal end of the pusher.
  2. 11. A detachable loading unit for use with a surgical fastener apparatus comprising:a) an anvil member releasably engagable with a portion of a surgical apparatus; andb) a plurality of surgical clips circumferentially disposed on the anvil member, wherein the anvil member defines a bore for receipt of a section of vascular tissue therein.
  3. 16. A detachable loading unit for use with a surgical fastener apparatus comprising:a) a fastener support removably engagable with a portion of a surgical fastener apparatus; andb) a plurality of surgical clips circumferentially disposed on the fastener support, wherein each clip of the plurality of surgical clips is an atraumatic non-tissue penetrating surgical clip.
  4. 24. A surgical instrument comprising:a) a handle assembly;b) an anvil support extending distally from the handle assembly;c) an actuator movable with respect to the anvil support; andd) a loading unit having:i) an anvil removably supported on a distal end of the anvil support;ii) a plurality of surgical clips circumferentially disposed about the anvil member; andiii) a pusher movable relative to the anvil member and engagable with the actuator, wherein movement of the actuator relative to the anvil support simultaneously deforms the plurality of surgical clips between the anvil member and a distal end of the pusher.
  5. 30.30. A method for anastomosis of first and second tubular tissues comprising:a) providing a loading unit having an anvil member defining a passage therethrough for receipt of a first tubular tissue, a plurality of surgical clips having at least one leg with an atraumatic tip positioned on the anvil and a pusher axially movable relative to the anvil to simultaneously deform the plurality of surgical clips;b) positioning a first tubular tissue through the passage and everting a first end of the first tubular tissue over a distal end of the anvil and the at least one leg;c) inserting the distal end of the anvil and everted first end of first tubular tissue through an opening formed in a second tubular tissue;d) engaging the distal end of a surgical instrument with a proximal end of the anvil; ande) actuating the surgical instrument to move the pusher distally such that the plurality of surgical clips are crimped about the first and second tubular tissues without piercing the first and second tubular tissues.

References Cited

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