Patent ID: 9446456
Filing Date: 2016-09-20
CPC Classification: A61B,B23B,Y10T

Claim Text:
1. A remote controlled actuator, which comprises: an elongated spindle guide section, a distal end member fitted to a distal end of the spindle guide section through a distal end member coupling unit for alternation in attitude and in which the distal end member coupling unit supports the distal end member for tilting motion in arbitrary direction, and a drive unit housing coupled with a base end of the spindle guide section and capable of being held by hand; wherein the distal end member rotatably supports a spindle to hold a tool, wherein the spindle guide section includes a rotary shaft to transmit rotation of a tool rotation drive source, provided within the drive unit housing, to the spindle, and a guide hole defined therein so as to extend from one end to the opposite end, wherein an attitude altering member to alter the attitude of the distal end member as a result of advancing or retracting operation with its tip end held in contact with the distal end member is reciprocally movably inserted within the guide hole and in which the guide hole and the attitude altering member inserted within the guide hole are provided at three or more locations about a center of tilt of the distal end member, wherein an attitude control drive source to selectively advance and retract the attitude altering member is provided within the drive unit housing and in which the attitude control drive source is provided for each of the attitude altering members, and an attitude altering operation piece to change the attitude of the distal end member by issuing an actuation command signal directly or indirectly to the attitude control drive source in response to an input manipulation is provided outside the drive source housing and in which the attitude of the distal end member is altered or maintained by an effect of balance of working forces applied from the attitude altering members at those three or more locations to the distal end member, and wherein the attitude altering operation piece is capable of being manipulated by hands then holding the drive source housing.