Patent ID: 7909223
Filing Date: 2011-03-22
Classification: A61B,A61F

Abstract:
1. A fluid-actuated endoscopic tissue fastening instrument, comprising: an elongate shaft having a flexible distal portion and a proximal portion; a head mounted to the distal portion of the shaft, the head comprising a fastener housing and an anvil housing, said housings defining a region therebetween where tissue can be received, the fastener housing having a fluid line extending through said shaft and fluidly coupled to the hydraulic chamber and the second chamber in said fastener housing, wherein the compression piston and attached fastener holder is advanceable within the hydraulic chamber in response to flow of fluid from the fluid line into the hydraulic chamber to advance the fastener holder against tissue disposed between the two housings, and the staple piston is advanceable within the second chamber in response to fluid flow of fluid from the fluid line into the second chamber to advance the at least one fastener from the fastener holder into tissue disposed between the two housings.