A staple drive assembly includes an actuation sled and at least one staple pusher. The staple drive assembly is adapted to fit within a staple cartridge having a plurality of staples and a corresponding number of retention slots. The at least one staple pusher includes at least one pusher plate for releasably...http://www.google.de/patents/US20070075115?utm_source=gb-gplus-sharePatent US20070075115 - Staple drive assembly
