| 摘要 |
PROBLEM TO BE SOLVED: To provide a surgical stapling device.SOLUTION: A circular stapling device 10 comprises: a handle assembly 20; an elongate body 30 which extends from the handle assembly; a cartridge assembly 100 mounted on a distal end of the elongate body, the cartridge assembly defining an annular containment groove, the cartridge assembly including a housing, a pusher member supported within the housing and being movable between a first position and a second position, and a fastener cartridge body supported on the housing and having a tissue engaging surface that extends to an annular edge; a circular cartridge buttress member having a body portion and an extension portion, the body portion being supported on the tissue engaging surface of the fastener cartridge body, the extension portion extending from the body portion and over the annular edge of the tissue engaging surface; and a retaining ring member secured within the containment groove over the extension portion of the circular cartridge buttress member to releasably secure the circular cartridge buttress member to the fastener cartridge body. |
