Surgical stapling instruments including a cartridge having multiple staples sizes
First Claim
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1. An apparatus for joining tubular tissue sections comprising:
- a cartridge assembly having a planar tissue contacting surface, the cartridge assembly defining a plurality of retention slots in an annular array, each of the plurality of retention slots configured to receive a surgical fastener therein, the cartridge assembly including a staple ejection assembly having a plurality of pushers, each of the plurality of pushers disposed within a respective one of the plurality of retention slots;
an anvil assembly having a stepped tissue contacting surface defining fastener forming recesses, the anvil assembly and the cartridge assembly being relatively movable toward and away from each other; and
a plurality of surgical fasteners, each of the plurality of surgical fasteners disposed in a respective one of the plurality of retention slots, wherein at least some of the plurality of surgical fasteners have different dimensions than others of the plurality of surgical fasteners.
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Abstract
A surgical stapling apparatus includes a staple cartridge and an anvil member. The staple cartridge includes a plurality of surgical fasteners disposed in rows of retention slots. The staple cartridge may have an annular or linear configuration of retention slots. The tissue contacting surface of the staple cartridge may be tapered or stepped. The anvil member has a tissue contacting surface that includes a number of pockets arranged for substantially aligning with the retention slots. In addition, the tissue contacting surface of the anvil member may complement the tissue contacting surface of the staple cartridge.
288 Citations
16 Claims
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1. An apparatus for joining tubular tissue sections comprising:
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a cartridge assembly having a planar tissue contacting surface, the cartridge assembly defining a plurality of retention slots in an annular array, each of the plurality of retention slots configured to receive a surgical fastener therein, the cartridge assembly including a staple ejection assembly having a plurality of pushers, each of the plurality of pushers disposed within a respective one of the plurality of retention slots; an anvil assembly having a stepped tissue contacting surface defining fastener forming recesses, the anvil assembly and the cartridge assembly being relatively movable toward and away from each other; and a plurality of surgical fasteners, each of the plurality of surgical fasteners disposed in a respective one of the plurality of retention slots, wherein at least some of the plurality of surgical fasteners have different dimensions than others of the plurality of surgical fasteners. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification