Abstract: A surgical instrument includes a stapling assembly and an anvil that releasably couple together to compress and staple tissue. The stapling assembly includes a body having a longitudinal axis, a deck member, and a knife member surrounding the longitudinal axis. The deck member includes a deck surface having an imaginary centerline that surrounds the longitudinal axis, a first deck surface portion extending along a first angular range of the deck surface about the longitudinal axis, and a second deck surface portion extending along a second angular range of the deck surface about the longitudinal axis. A first array of staple openings is disposed on the first deck surface portion and is arranged in a first orientation relative to the deck surface centerline. A second array of staple openings is disposed on the second deck surface portion and is arranged in a second orientation relative to the deck surface centerline.

Abstract: A surgical instrument including a stapling assembly and an anvil configured to selectively couple with the stapling assembly to compress tissue and form staples in the tissue. The stapling assembly includes a housing extending distally along a central axis, a deck member having a plurality of staple openings configured to receive a plurality of staples, and a knife member at least partially disposed within the housing. The deck member includes an exterior perimeter having a first shape and an interior perimeter enclosed by the exterior perimeter and having a second shape different than the first shape. The knife member includes a distal end having a cutting edge that defines an edge plane that intersects the central axis. The cutting edge has a non-circular shape in the edge plane.