CONFIGURATION OF ENHANCED ALIGNMENT BETWEEN BIGORNA AND CARTRIDGE FOR CIRCULAR STAPLER

摘要

"improved anvil and cartridge alignment setting for a circular stapler". The. The present invention relates to a stapling refill assembly for a circular stapling instrument including a housing, a staple holder, a staple driver and an anvil assembly. the staple holder is fixed to the compartment. The clip driver includes a driver alignment surface. The clamp driver may be received within the housing, and is configured to move therefrom from a pre-trigger position to a post-trigger position. the anvil assembly includes an anvil base surface, an anvil alignment surface, and a clip forming surface. the base surface of the anvil is configured to move from an open position away from the housing to a closed position adjacent to the housing. the anvil alignment surface is configured to engage the actuator alignment surface to rotationally align the clip forming surface with the clip holder when the anvil base surface 20 is in the closed position.