Patent ID: 8393242

Claim:
A remote controlled actuator which comprises a spindle guide section of an elongated configuration, a distal end member fitted to a distal end of the spindle guide section through a distal end member connecting unit for alteration in attitude, a tool rotatably fitted to the distal end member, a tool rotating drive source for rotating the tool, and an attitude altering drive source for manipulating the attitude of the distal end member; wherein the distal end member rotatably supports a spindle for holding the tool; wherein the spindle guide section includes a rotary shaft for transmitting rotation of the tool rotating drive source to the spindle, a guide hole defined within the spindle guide section so as to extend to a proximal end and the distal end of the spindle guide section, and an attitude altering member reciprocally movably inserted within the guide hole for altering the attitude of the distal end member about an axis perpendicular to a longitudinal axis of the spindle; wherein the spindle guide section comprises an outer shell pipe forming an outer shell for the spindle guide section and the guide hole is an inner diametric hole of a guide pipe provided within the outer shell pipe; and wherein the attitude altering member is, while a proximal end of the attitude altering member is held in contact with the distal end member, selectively advanced and retracted by the attitude altering drive source.