PROBLEM TO BE SOLVED: To provide a surgical instrument adapted for applying a plurality of surgical fasteners to body tissue.;SOLUTION: The surgical instrument 20 includes a frame having a proximal end and a distal end 30. A handle 21 is positioned at the proximal end and an end effector 80 is positioned at the distal end 30. The end effector is shaped and dimensioned for supporting a cartridge module 120. A firing mechanism is associated with the end effector and the cartridge module for selective actuation. The end effector has a radius of curvature optimized for a trans anal resection such that the end effector has a curvature of at most approximately a 40mm diameter.;COPYRIGHT: (C)2007,JPO&INPIT
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