The invention discloses a flexible multi-joint
surgical instrument for
robot assisted minimally
invasive surgery, and relates to the technical field of enterocoelia minimally
invasive surgery department medical facilities. The instrument can achieve
spatial displacement and positioning of
tail end operating
forceps by itself inside a patient, the
tail end gesture adjusting capability of the
surgical instrument is enhanced, the good flexibility is achieved, and the tissue
surgical operation is completed inside the small space; by means of a self-rotation joint designed between the
wrist of the
surgical instrument and the
tail end operating
forceps, and the problem that joint restoration is needed during autorotation is avoided; the instrument comprises the tail end operating
forceps mechanism, the autorotation joint, the
wrist flexible joint and a power driving box; the power driving box comprises a wiring
pipe, a shell, an upper base plate, a lower base plate, five sets of motor
rope sheave devices, a
rope guiding wheel set and a
rope guiding column set; one end of the wiring
pipe is connected with the tail end ball hinge structure of the
wrist flexible joint, and the other end of the wiring
pipe is fixed to the lower base plate. The instrument is used for the
robot assisted minimally
invasive surgery.