Methods of using shape memory alloys for buttress attachment
First Claim
1. A surgical stapling device comprising:
- a cartridge assembly;
an anvil assembly operatively associated with the cartridge assembly and in juxtaposed relation thereto;
a first tissue contacting surface defined by at least one of the cartridge assembly and the anvil plate; and
a buttress attachment feature for selectively securing a surgical buttress adjacent the first tissue contacting surface, the buttress attachment feature responsive to a temperature change such that the buttress attachment feature is movable between a first position in which, at a first temperature, a free end of the buttress attachment feature is substantially spaced from the first tissue contacting surface, and a second position in which, at a second temperature, the free end is relatively approximated to the first tissue contacting surface to secure the surgical buttress to the first tissue contacting surface, and wherein the buttress attachment feature includes a plurality of fingers disposed along the first tissue contacting surface.
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Accused Products
Abstract
A surgical stapling device includes a tissue contacting surface and a buttress attachment feature. The buttress attachment feature permits selectively securing a surgical buttress to the tissue contacting surface, which may be disposed on a cartridge assembly or an anvil plate of the surgical stapling device. The buttress attachment feature may include a shape memory alloy, such as a nickel titanium alloy, that is responsive to a temperature change to allow the buttress attachment feature to move between a first position where a free end of the buttress attachment feature is substantially spaced from the tissue contacting surface, and second position where the surgical attachment feature is approximated with respect to the tissue contacting surface.
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Citations
11 Claims
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1. A surgical stapling device comprising:
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a cartridge assembly; an anvil assembly operatively associated with the cartridge assembly and in juxtaposed relation thereto; a first tissue contacting surface defined by at least one of the cartridge assembly and the anvil plate; and a buttress attachment feature for selectively securing a surgical buttress adjacent the first tissue contacting surface, the buttress attachment feature responsive to a temperature change such that the buttress attachment feature is movable between a first position in which, at a first temperature, a free end of the buttress attachment feature is substantially spaced from the first tissue contacting surface, and a second position in which, at a second temperature, the free end is relatively approximated to the first tissue contacting surface to secure the surgical buttress to the first tissue contacting surface, and wherein the buttress attachment feature includes a plurality of fingers disposed along the first tissue contacting surface. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A surgical stapling device comprising:
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a cartridge assembly; an anvil assembly operatively associated with the cartridge assembly and in juxtaposed relation thereto; and a buttress attachment feature including; a plurality of ribs operatively connected to at least one of the cartridge assembly and the anvil assembly; and a panel supported by the plurality of ribs; wherein the plurality of ribs is moveable in response to a temperature change between a first position in which the panel is spaced from a tissue contacting surface defined by at least one of the cartridge assembly and the anvil assembly, and a second position in which the panel overlies the tissue contacting surface. - View Dependent Claims (9, 10, 11)
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Specification