Apparatus and method to apply buttresses separately to jaws of end effector of surgical stapler

An apparatus for loading a jaw of a surgical stapler, wherein the jaw includes a stapling surface and an outer surface disposed opposite the stapling surface, wherein the stapling surface includes a plurality of staple apertures or a plurality of staple forming pockets, comprising:

• (a) an adjunct material that includes a coupling feature;
• (b) a housing that includes a first contact feature, wherein the first contact feature is configured to contact one of the adjunct material or the outer surface of the jaw;
• (c) an arm operatively coupled with the housing, wherein the arm includes a second contact feature that is configured to move relative to the first contact feature to contact the other of the adjunct material or the outer surface of the jaw;
• and
• (d) a resilient feature operatively coupled with the housing and the arm, wherein the resilient feature is configured to bias the arm, including the second contact feature, relative to the first contact feature to apply a compression force in a direction toward the first contact feature to pinch the adjunct material against the stapling surface to mount the adjunct material to the stapling surface.