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 tissue contacting surface defined by at least one of the cartridge assembly and the anvil plate; and
at least one buttress attachment feature for selectively securing a surgical buttress adjacent the tissue contacting surface, the buttress attachment feature movable between a first position in which a free end of the buttress attachment feature extends substantially orthogonally with respect to the tissue contacting surface, and a second position in which the free end of the buttress attachment feature extends substantially parallel with respect to the tissue contacting surface,wherein the free end of the buttress attachment feature includes a frame configured to substantially circumscribe at least a portion of the tissue contacting surface when the buttress attachment feature is in the second position.
2 Assignments
0 Petitions
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.
1750 Citations
16 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 tissue contacting surface defined by at least one of the cartridge assembly and the anvil plate; and at least one buttress attachment feature for selectively securing a surgical buttress adjacent the tissue contacting surface, the buttress attachment feature movable between a first position in which a free end of the buttress attachment feature extends substantially orthogonally with respect to the tissue contacting surface, and a second position in which the free end of the buttress attachment feature extends substantially parallel with respect to the tissue contacting surface, wherein the free end of the buttress attachment feature includes a frame configured to substantially circumscribe at least a portion of the tissue contacting surface when the buttress attachment feature is in the second position. - 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; a tissue contacting surface defined by at least one of the cartridge assembly and the anvil plate; and at least one buttress attachment feature for selectively securing a surgical buttress adjacent the first tissue contacting surface, the buttress attachment feature including a shape memory alloy, wherein the shape memory alloy is configured to assume a first orientation with respect to the tissue contacting surface at a first temperature wherein a free end of the buttress attachment feature is spaced from the tissue contacting surface for permitting movement of the surgical buttress with respect to the tissue contacting surface, and wherein the shape memory alloy is configured to assume a second orientation with respect to the tissue contacting surface at a second temperature where the free end of the buttress attachment feature is relatively proximate to the tissue contacting surface for securing the surgical buttress to the tissue contacting surface, wherein the tissue contacting surface is arranged circumferentially, and wherein the outer edge is a circumferential edge of the tissue contacting surface. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method of performing a surgical procedure, comprising the steps of:
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providing a surgical stapling device including; a cartridge assembly; an anvil assembly, wherein a tissue contacting surface is defined by at least one of the cartridge assembly and the anvil assembly; and a buttress attachment feature responsive to a change in temperature; heating the buttress attachment feature to effect an increase in temperature to move the buttress attachment feature from a first position where a free end of the buttress attachment feature is spaced from the tissue contacting surface to a second position where the free end of the buttress attachment feature is relatively proximate to the tissue contacting surface, such that the free end of the buttress attachment feature includes a frame substantially circumscribing at least a portion of the tissue contacting surface when the buttress attachment feature is in the second position; and introducing the cartridge assembly and the anvil assembly into a target surgical site. - View Dependent Claims (15, 16)
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Specification