Instrumento grampeador cirúrgico

A surgical instrument (20) adapted for applying a plurality of surgical fasteners to body tissue, the surgical instrument comprising: a frame having a proximal end and a distal end, with a handle (21) positioned at the proximal end and an end effector (80) positioned at the distal end; the end effector being shaped and dimensioned for supporting a cartridge housing (121) and an anvil (122), the cartridge housing and anvil structure being relatively movable between a first spaced apart position and a second position in close approximation with one another; a firing mechanism associated with the end effector and the cartridge housing for selective actuation of the fastening elements for treatment of an individual; and a tissue retention feature (124,125) associated with the cartridge housing and anvil, the tissue retention feature maintaining tissue within the end effector during treatment; wherein the cartridge housing includes staple lines defining the longitudinal extent of the staples being applied via the cartridge module, and the longitudinal extent of the staple line is greater than the longitudinal extent of the tissue retention feature.