#$%^&*AU2015200658A120150305.pdf#####STAPLE BUTTRESS RETENTION SYSTEM ABSTRACT An annular surgical stapling instrument (150) having a system for retaining buttress material is provided. The instrument (150) comprises a handle (152) an elongate member (154) extending distally from the handle (152) an annular staple containing cartridge (156) mounted adjacent a distal end of the elongate member (154) an annular anvil (160) releasably connectable to the annular staple containing cartridge (156) at least one buttress material and at least one buttress retainer (180) defining an open center portion and being removably attached to at least one of the staple containing cartridge (156) and the anvil (160).
