Variable compression surgical fastener cartridge
First Claim
1. A surgical fastener applying apparatus comprising:
- a cartridge body including a tissue contacting surface, the tissue contacting surface including a plurality of fastener retention slots arranged to define a plurality of rows including at least a pair of inner rows and a pair of outer rows;
a plurality of surgical fasteners including a backspan, and a discrete member secured to the backspan, the backspan and the discrete member cooperatively defining a backspan height for each surgical fastener, the plurality of surgical fasteners arranged to define a pair of inner rows and a pair of outer rows corresponding to the pairs of inner and outer rows of retention slots, the discrete member of each of the plurality of surgical fasteners disposed in the inner rows having a first height, and the discrete member of each of the plurality of surgical fasteners disposed in the outer rows having a second height, wherein the first height is different than the second height;
an anvil having a pair of inner rows and a pair of outer rows of depressions for forming the surgical fasteners; and
a plurality of pushers operably associated with the plurality of surgical fasteners, and configured to eject the surgical fasteners toward a respective depression in an anvil for formation thereof such that upon formation, the plurality of surgical fasteners ejected from the inner rows provide a greater compressive force to tissue than the plurality of surgical fasteners ejected from the outer rows.
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Accused Products
Abstract
A surgical fastener applying apparatus comprising a cartridge body including a plurality of fastener retention slots arranged in a plurality of rows including at least an inner row and an outer row, a plurality of surgical fasteners disposed in inner and outer rows and configured such that a plurality of fasteners disposed in the inner row have a backspan that has a greater height than a backspan of a plurality of surgical fasteners disposed in the outer row, and an anvil having an inner row and an outer row of depressions for forming the fasteners. A plurality of pushers are operably associated with the plurality of surgical fasteners and configured to eject the surgical fasteners toward a respective depression in an anvil for formation thereof such that upon formation, the plurality of surgical fasteners ejected from the inner row provide a greater compressive force to tissue than the plurality of surgical fasteners ejected from the outer row.
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Citations
28 Claims
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1. A surgical fastener applying apparatus comprising:
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a cartridge body including a tissue contacting surface, the tissue contacting surface including a plurality of fastener retention slots arranged to define a plurality of rows including at least a pair of inner rows and a pair of outer rows; a plurality of surgical fasteners including a backspan, and a discrete member secured to the backspan, the backspan and the discrete member cooperatively defining a backspan height for each surgical fastener, the plurality of surgical fasteners arranged to define a pair of inner rows and a pair of outer rows corresponding to the pairs of inner and outer rows of retention slots, the discrete member of each of the plurality of surgical fasteners disposed in the inner rows having a first height, and the discrete member of each of the plurality of surgical fasteners disposed in the outer rows having a second height, wherein the first height is different than the second height; an anvil having a pair of inner rows and a pair of outer rows of depressions for forming the surgical fasteners; and a plurality of pushers operably associated with the plurality of surgical fasteners, and configured to eject the surgical fasteners toward a respective depression in an anvil for formation thereof such that upon formation, the plurality of surgical fasteners ejected from the inner rows provide a greater compressive force to tissue than the plurality of surgical fasteners ejected from the outer rows. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A surgical fastener cartridge for use with a surgical fastener applying apparatus comprising:
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a cartridge body including a plurality of fastener retention slots arranged in a plurality of rows including at least a pair of inner rows and a pair of outer rows; a plurality of first surgical fasteners arranged to define a pair of inner rows corresponding to the pair of inner rows of retention slots, and a plurality of second surgical fasteners arranged to define a pair of outer rows corresponding to the pair of outer rows of retention slots, each surgical fastener having a pair of legs extending from a backspan, and a discrete member secured to the backspan, the backspan and the discrete member cooperatively defining a backspan height for each surgical fastener, the discrete member of each of the plurality of first surgical fasteners having a first height, and the discrete member of each of the plurality of second surgical fasteners having a second height, wherein the first height is different than the second height; and a plurality of pushers operably associated with the plurality of surgical fasteners configured to eject the surgical fasteners. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification