Patent ID: 8435250

Claim:
A micro manipulator comprising: a motor which includes a shaft and a single vibration portion; a mobile which is coupled to the shaft as to encompass and contact at least a portion of an outer surface of the shaft and is movable along the shaft in a longitudinal direction of the shaft; and a frame which supports the motor, wherein an electrode is connected to the mobile in a direction parallel to a longitudinal direction of the shaft, wherein the shaft is formed in a direction perpendicular to the vibration portion, wherein the vibration portion is mechanically curved in a positive direction that is parallel to the longitudinal direction of the shaft by application of power thereto, and wherein the vibration portion is mechanically curved in a negative direction that is parallel to the longitudinal direction of the shaft by removal of the power thereto, wherein when the vibration portion is curved in a positive direction by the application of power thereto, the mobile moves in the positive direction together with the shaft due to a frictional force between the shaft and the mobile, wherein when the vibration portion is curved in a negative direction by removal of the power thereto, the mobile remains at the position reached during the application of power to the vibration portion due to inertia force of the weight of the mobile while the shaft moves in a negative direction, so that the mobile moves linearly in a positive longitudinal direction of the shaft and the electrode connected to the mobile moves linearly by linear movement of the mobile.