Structure for attaching buttress material to anvil and cartridge of surgical stapling instrument

An end effector of a surgical stapler, comprising:

• first and second jaw members, the first jaw member moveable relative to the second jaw member, the first jaw member including a contact surface and a catch having first and second fingers, the second finger biased toward the contact surface, the second jaw member including first and second projections, the second projection distal of the first projection;
• and
• a buttress material defining a longitudinal axis, the buttress material releasably secured with at least one of the first or second jaw members, the buttress material defining first, second, and third slots formed therein, the first projection of the second jaw member received in the first slot of the buttress material when the buttress material is secured with the second jaw member, the first finger of the catch received in the second slot of the buttress material when the buttress material is secured with the first jaw member, the second projection of the second jaw member received in the third slot of the buttress material when the buttress material is secured with the second jaw member.

A buttress material for use with a surgical stapling instrument, the buttress material comprising:

• an elongate body defining a longitudinal axis, the elongate body including proximal and distal portions, the proximal portion including a tapered portion, the proximal portion defining first and second proximal slots separated by a wall, the first and second proximal slots extending transverse to the longitudinal axis, the distal portion defining first and second distal slots, the first distal slot is defined transverse to the longitudinal axis, the second distal slot extends along a length of the longitudinal axis, the second distal slot distal of the first distal slot.