Patent ID: 8512316

Claim:
A manipulator, comprising: a first rotor axis portion which crosses to a direction along a longitudinal direction of a connecting portion at a tip of which a treating portion is provided to treat a treatment target; a main shaft portion which is rotatably supported around the first rotor axis portion such that the first rotor axis portion is a rotational pivot axis about which the main shaft portion rotates; a first treating member and a second treating member which are provided in the treating portion; a first gear rotatably supported in the direction around the first rotor axis; a second gear rotatably supported in the direction around the first rotor axis; a third gear which engages with the first gear and is rotatably supported around the main shaft portion; a fourth gear which engages with the second gear and is rotatably supported around the main shaft portion; a fifth gear which coaxially rotates with the third gear; a sixth gear which coaxially rotates with the fourth gear; a seventh gear which is provided to transmit rotation torque of the fifth gear to the first treating member and engages with the fifth gear; an eighth gear which is provided to transmit rotation torque of the sixth gear to the second treating member and engages with the sixth gear; and a second rotor axis portion which is a rotation center of the seventh gear and the eighth gear and is arranged in a torsional relationship with the first rotor axis portion.