Detachable End Effectors

A surgical device comprising:

• an elongate shaft including an outer tube and an inner rod positioned in the outer tube, the outer tube and inner rod each including a distal end and a proximal end;
• an actuator operably connected to the proximal ends of the outer tube and the inner rod;
• a grasper on the distal end of the inner rod, the grasper having a locked position and an unlocked position dependent on the axial position of the inner rod relative to the outer tube;
• an end effector adapted for in vivo attachment to and detachment from the elongate shaft, the end effector including
• an outer housing,
• an inner shaft axially moveable relative to the outer housing, the inner shaft including a proximal end sized and dimensioned to be received in and locked to the grasper, and
• a pair of surgical jaws having an opened position and a closed position dependent on the relative axial position of the inner shaft and the outer housing,
• where the inner shaft and the grasper include materials configured to facilitate a magnetic engagement between the inner shaft and the grasper.

A surgical device comprising:

• an elongate shaft including an outer tube and an inner rod positioned in the outer tube, the outer tube and inner rod each including a distal end and a proximal end;
• an actuator operably connected to the proximal ends of the outer tube and the inner rod;
• and
• an end effector adapted for in vivo attachment to and detachment from the elongate shaft, the end effector including
• an outer housing,
• an inner shaft axially moveable relative to the outer housing, the inner shaft including a magnetic material providing provisional engagement to the distal end of the inner rod, and
• a pair of surgical jaws having an opened position and a closed position dependent on the relative axial position of the outer housing and inner shaft.