Varying tissue compression using take-up component
First Claim
1. A surgical fastener applying apparatus, comprising:
- a first jaw having proximal and distal ends and including an anvil member, the anvil member extending along a longitudinal axis and including a tissue contacting surface;
a second jaw having proximal and distal ends movably coupled to the first jaw and including a cartridge member; and
a hemostasis member positioned between the first jaw and the second jaw, the hemostasis member having a stepped profile configured and dimensioned to apply at least two different compressive forces to tissue during approximation of the first and second jaws, the hemostasis member having a height that is varied along the longitudinal axis such that the compressive forces are varied along the longitudinal axis.
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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, a hemostasis member that is configured to apply at least two different compressive forces to tissue clamped between the first and second jaws of the tool assembly.
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Citations
18 Claims
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1. A surgical fastener applying apparatus, comprising:
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a first jaw having proximal and distal ends and including an anvil member, the anvil member extending along a longitudinal axis and including a tissue contacting surface; a second jaw having proximal and distal ends movably coupled to the first jaw and including a cartridge member; and a hemostasis member positioned between the first jaw and the second jaw, the hemostasis member having a stepped profile configured and dimensioned to apply at least two different compressive forces to tissue during approximation of the first and second jaws, the hemostasis member having a height that is varied along the longitudinal axis such that the compressive forces are varied along the longitudinal axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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- 16. A hemostasis member for use with a surgical fastener applying apparatus including an anvil and a cartridge having a plurality of surgical fasteners arranged in at least one row, the hemostasis member being shaped and configured to overlie the at least one row of surgical fasteners, the hemostasis member having a height that is varied along a longitudinal axis of the surgical fastener applying apparatus such that at least two different compressive forces are applied to tissue at locations along the longitudinal axis during approximation of the anvil member and the cartridge member.
Specification