Surgical stapling apparatus
First Claim
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1. Apparatus for applying surgical fasteners to body tissue, which comprises:
- first means for carrying a plurality of surgical fasteners;
second means adapted for effecting closure of a plurality of said fasteners; and
,at least one of said second fastener closure means and said first fastener carrying means having a resilient deflectable member with a raised portion movable relative to the tissue when said first and second means are positioned in adjacent relation with the tissue gripped therebetween, said raised portion engaging the tissue with force sufficient to maintain alignment of the tissue, and said resilient deflectable member being located within the periphery of at least one of said first or second means.
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Abstract
An improved apparatus for applying surgical fasteners to body tissue wherein the improvement comprises a resilient, deflectable arm which frictionally engages body tissue held between the anvil portion of the apparatus and the cartridge assembly of the apparatus. The deflectable arm exerts a biasing force on the tissue thereby holding the tissue in position to prevent misalignment.
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Citations
18 Claims
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1. Apparatus for applying surgical fasteners to body tissue, which comprises:
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first means for carrying a plurality of surgical fasteners; second means adapted for effecting closure of a plurality of said fasteners; and
,at least one of said second fastener closure means and said first fastener carrying means having a resilient deflectable member with a raised portion movable relative to the tissue when said first and second means are positioned in adjacent relation with the tissue gripped therebetween, said raised portion engaging the tissue with force sufficient to maintain alignment of the tissue, and said resilient deflectable member being located within the periphery of at least one of said first or second means. - View Dependent Claims (16, 17, 18)
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2. Apparatus for applying surgical fasteners to tissue, which comprises:
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(a) at least a pair of jaws adapted for reception of tissue therebetween for applying surgical fasteners to the tissue; (b) means on at least one of said jaws for carrying a plurality of surgical fasteners; (c) means correspondingly positioned on the other of said jaws for effecting closure of a plurality of said surgical fasteners; and
,(d) means connected to at least one of said jaws and including a deflectable raised portion movable with respect to, and to a position at least partially within, a slot in said at least one jaw and extending toward the other of said jaws for engaging the tissue when the jaws are closed in preparation for applying fasteners to the tissue, said raised portion being laterally movable relative to said tissue such that said raised portion exerts sufficient force against the tissue to secure the tissue firmly with respect to said jaws.
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3. An apparatus for applying surgical fasteners which comprises:
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first frame including a distally projecting, finger-like member for carrying a fastener holding cartridge; second frame including a distally projecting finger-like member for carrying an anvil assembly, said first and second frames being hingedly securable to each other such that their respective finger-like members form jaws for closing on body tissue positioned therebetween; fastener holding cartridge including at least two parallel rows of fastener carrying slots arrayed in longitudinally extending lines, and including a longitudinally extending knife slot laterally intermediate said rows of staple carrying slots; an anvil assembly having means for effecting closure of the surgical fasteners and having a knife slot aligned with said knife slot of the staple carrying cartridge to permit a knife blade to simultaneously move longitudinally along both the anvil assembly knife slot and the cartridge assembly knife slot; means for ejecting said surgical fasteners from the fastener carrying slots into the anvil assembly to effect closure thereof; and
,at least one deflectable arm having a tissue engaging surface, said tissue engaging surface exerting a biasing force on tissue located between the closed jaws of the apparatus for frictionally holding said tissue in alignment, and said deflectable arm being in substantial longitudinal alignment with said knife slot. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification