Varying tissue compression with an anvil configuration
First Claim
1. A surgical fastener applying apparatus, comprising:
- an anvil member having a tissue contacting surface;
a cartridge member extending along a longitudinal axis and being movably coupled to the anvil member, the cartridge member including a plurality of surgical fasteners and a plurality of pushers operatively associated with the plurality of surgical fasteners, each pusher including a base portion and a plurality of pusher plates extending from the base portion such that adjacent pusher plates define an acute angle therebetween; and
a sled operably engagable with the plurality of pushers, wherein engagement of the sled with the pushers urges the surgical fasteners toward the anvil member such that a first row of surgical fasteners applies a first compressive force to tissue disposed between the anvil member and the cartridge member, and a second row of surgical fasteners applies a second, different compressive force to tissue disposed between the anvil member and the cartridge member.
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Accused Products
Abstract
The present disclosure relates to surgical fastener applying apparatus and the application of variable compression to tissue. More specifically, the presently disclosed surgical fastener applying apparatus act to limit the flow of blood through tissue immediately adjacent a cut-line formed therein to effectuate hemostasis, while maximizing the flow of blood through tissue more removed from the cut-line to limit unnecessary necrosis. In one embodiment, a surgical fastener applying apparatus is disclosed having a tool assembly coupled to a distal end thereof with first and second jaws respectively including an anvil and a surgical fastener cartridge. The surgical fastener cartridge includes, among other things, angled pushers that engage surgical fasteners of varying lengths.
1210 Citations
23 Claims
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1. A surgical fastener applying apparatus, comprising:
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an anvil member having a tissue contacting surface; a cartridge member extending along a longitudinal axis and being movably coupled to the anvil member, the cartridge member including a plurality of surgical fasteners and a plurality of pushers operatively associated with the plurality of surgical fasteners, each pusher including a base portion and a plurality of pusher plates extending from the base portion such that adjacent pusher plates define an acute angle therebetween; and a sled operably engagable with the plurality of pushers, wherein engagement of the sled with the pushers urges the surgical fasteners toward the anvil member such that a first row of surgical fasteners applies a first compressive force to tissue disposed between the anvil member and the cartridge member, and a second row of surgical fasteners applies a second, different compressive force to tissue disposed between the anvil member and the cartridge member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16)
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15. A surgical fastener applying apparatus, comprising:
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an anvil member; a cartridge member movably coupled to the anvil member and extending along a longitudinal axis, the cartridge member being configured and dimensioned to retain a plurality of surgical fasteners therein; and at least one pusher positioned within the cartridge member, the at least one pusher being movable to eject the plurality of surgical fasteners from the cartridge member into the anvil member to effectuate formation of the plurality of surgical fasteners such that at least two different compressive forces are applied to tissue, the at least one pusher including a base portion and a plurality of pusher plates connected to the base portion such that the plurality of pusher plates are repositionable relative to a centerline of the cartridge member during movement of the at least one pusher, wherein the pusher plates extend from the base portion such that adjacent pusher plates define an acute angle therebetween. - View Dependent Claims (17, 18)
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- 19. A pusher configured and dimensioned to eject one or more surgical fasteners from a surgical fastener applying apparatus, the pusher comprising a plurality of pusher plates configured and dimensioned such that at least one of the pusher plates is moved in first and second directions during ejection of the surgical fasteners, the first direction extending along a first axis, and the second direction extending along a second axis transverse in relation to the first axis.
Specification