Methods of using shape memory alloys for buttress attachment

Details Methods of using shape memory alloys for buttress attachment Methods of using shape memory alloys for buttress attachment

Category

A - Human Necessities

Subcategory

61

Subsubcategory

B

IPC codes

A61B 17/03 (2006.01) A61B 17/068 (2006.01) A61B 17/072 (2006.01) A61B 17/115 (2006.01) A61L 31/02 (2006.01)

Type

Patent

Patent number

CA 2665206

Description

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 fo 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.

La présente invention concerne un dispositif d'agrafage chirurgical qui comprend une surface entrant en contact avec un tissu et une caractéristique de fixation de renfort. Ladite caractéristique permet de fixer de manière sélective un renfort chirurgical à ladite surface, qui peut être disposée sur un ensemble cartouche ou une plaque d'enclume du dispositif d'agrafage chirurgical. Ladite caractéristique peut comprendre un alliage à mémoire de forme, tel qu'un alliage en nickel et titane, qui est sensible à un changement de température permettant que ladite caractéristique se déplace entre une première position où une extrémité libre de ladite caractéristique est sensiblement espacée de ladite surface, et une seconde position où ladite caractéristique est rapprochée de ladite surface.

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