#$%^&*AU2019222815A120200409.pdf#####BUTTRESS ATTACHMENT METHODS FOR CIRCULAR EEA STAPLERS ABSTRACT An apparatus (10) forjoining two hollow organ sections with an annular array of surgical staples, the apparatus (10) comprising: a staple cartridge assembly (70) including an annular wall having the annular array of surgical staples, the annular wall defining an inner aperture in an inner surface of the annular wall and an outer aperture in an outer surface of the annular wall； an anvil assembly (60) movable relative to the staple cartridge assembly (70) between spaced apart and approximated positions to adjustably clamp the two hollow organ sections between the staple cartridge and anvil assemblies (70, 60)； a buttress member (110) configured to be positioned on a distal surface of the staple cartridge assembly (70), the buttress member (110) defining a cutout on a peripheral portion thereof； and a fastening member having a first end securely affixed to the inner aperture of the annular wall of the staple cartridge assembly (70) and a second end securely affixed to the outer aperture of the annular wall of the staple cartridge assembly (70) to secure the buttress member on the staple cartridge assembly (70), wherein the cutout of the buttress member is in radial registration with the outer aperture of the annular wall.
