Patent ID: 8517239

Claim:
A surgical stapler, comprising: a handle comprising: a gripping portion; and a firing trigger movable relative to said gripping portion; a shaft, comprising: a shaft axis; an elongate shaft frame extending from said gripping portion; and a driver rotatable relative to said elongate shaft frame, said driver comprising a longitudinal aperture; a firing member slidably positioned within said longitudinal aperture, wherein said firing member is operably coupled with said firing trigger; an end effector selectively articulatable in first and second directions, comprising: a staple cartridge channel configured to receive a staple cartridge; an anvil movably coupled to said staple cartridge channel; and a gear portion, wherein said driver is operably engaged with said gear portion; and a motor selectively operable in first and second directions, comprising: a first magnetic element mounted to said elongate shaft frame along said shaft axis; and a second magnetic element mounted to said driver, wherein said first magnetic element is configured to generate at least one magnetic field sufficient to displace said second magnetic element relative to said elongate shaft frame and rotate said driver, and wherein said first magnetic element and said second magnetic element are radially aligned within said shaft.