Surgical stapling apparatus are disclosed including an anvil having a working surface with a shaped topography; and a staple cartridge, in juxtaposition with the anvil. The staple cartridge includes a working surface with shaped topography which is complementary to the shaped topography of the working...http://www.google.de/patents/US7070083?utm_source=gb-gplus-sharePatent US7070083 - Surgical stapling apparatus including an anvil and cartridge each having cooperating mating surfaces
