Electrosurgical stapling apparatus

Details Electrosurgical stapling apparatus Electrosurgical stapling apparatus

A - Human Necessities

61

B

A61B 17/072 (2006.01) A61B 18/14 (2006.01) A61B 17/32 (2006.01)

Patent

CA 2484635

An electrosurgical stapling apparatus is provided which uses thermogenic energy as well as surgical fasteners or staples for strengthening tissue, providing hemostasis, tissue joining or welding. The thermogenic energy also strengthens tissue in proximity to a staple line and knife cut line and provides hemostasis along the staple and cut lines formed by the staples and a knife blade during surgical stapling. The use thermogenic energy provides short-term hemostasis and sealing, and reduces or prevents staple line and cut line bleeding, while the stapling features provide short and long-term tissue strength and hemostasis. The stapling apparatus further substantially reduces or prevents knife cut line bleeding by energizing a knife blade for cauterizing tissue while it is being cut. In one embodiment, energy is applied to the anvil to energize the staples as they make contact with the anvil.

L'invention concerne un dispositif d'agrafage électrochirurgical fonctionnant à l'énergie thermogénique, et utilisant des agrafes chirurgicales qui permettent de renforcer les tissus, d'assurer l'hémostase et de réaliser de l'assemblage ou du soudage de tissus. De plus, l'énergie thermogénique renforce les tissus à proximité d'une ligne d'agrafe et d'une ligne de coupure au bistouri, assurant l'hémostase le long de ces deux lignes en cours d'agrafage chirurgical. Cette énergie assure également l'hémostase à court terme et la cicatrisation, réduit ou prévient le saignement le long des deux lignes en question, et la fonction d'agrafage assure le renforcement des tissus et l'hémostase à court terme et à long terme. Par ailleurs, le dispositif réduit ou prévient sensiblement le saignement sur la ligne de coupure au bistouri en excitant le bord tranchant du bistouri pour la cautérisation des tissus au moment de l'incision. Selon une variante, l'énergie est appliquée à l'enclume, ce qui permet d'exciter les agrafes au moment du contact avec l'enclume.

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