ROBOTIC ARM, MINIMAL INVASIVE SURGERY ROBOT, AND RESPECTIVE MANUFACTURING METHOD THEREOF

摘要

A robotic arm includes a frame unit; a motion unit comprising elastic rods and a stiffness adjustment unit comprising hollow stiffness adjustment tubes. The motion unit and the stiffness adjustment unit are supported by the frame unit. The elastic rods are operatively movable along a longitude direction of the frame unit. The stiffness adjustment tubes are adapted to surround a first segment of the elastic rod, and be operatively movable along the longitude direction to vary a length of a second segment of the elastic rod at a first end away from the frame unit and not surrounded by the stiffness adjustment tubes, to adjust the stiffness of the first end of the elastic rod. The robotic arm and the robot enable real time adjustment of the stiffness of the distal end of the robotic arm to meet different surgery operations' requirements and improve the safety of the surgery operations.