surgical stapler with insertable distal anvil tip

摘要

the present invention relates to a surgical instrument that includes a body, a drive shaft and an end effector which is operable to compress, staple and cut tissue. the end effector comprises an anvil and a cartridge. the anvil has a body and a removable modular curved tip that connects to the body. the curved tip is elastically deformable in response to a force exerted on the curved tip when the fabric is trapped between the anvil and the cartridge. the anvil's curvature and deformation features provide an end effector with optimized viewing and maneuverability, particularly during walking procedures. the modular nature of the curved anvil tip provides an end effector that allows the anvil tip to be changed due to wear or interchangeability according to a user's preference or procedure.