Patent ID: 8739643
Filing Date: 2014-06-03
Classification: A61B,B23B,Y10T

Abstract:
1. A remote controlled actuator which comprises: a spindle guide section of an elongated shape; a distal end member fitted to a tip of the spindle guide section through a distal end member connecting unit for alteration in attitude; a tool rotatably provided in the distal end member; a tool rotation drive source for rotating the tool; an attitude altering drive source for operating the attitude of the distal end member; and a drive unit housing to which a base end of the spindle guide section is connected, in which the distal end member rotatably supports a spindle for holding the tool, in which the spindle guide section has its interior accommodating a rotary shaft for transmitting a rotation of the tool rotation drive source to the spindle and a guide hole having its opposite ends opening, in which a flexible attitude altering member is reciprocally movably inserted within the guide hole, and has a tip for undergoing a reciprocating or retracting motion in contact with the distal end member so as to alter the attitude of the distal end member, the attitude altering member being selectively advanced or retracted by the attitude altering drive source; and further comprising a position detector for detecting an advanced or retracted position of the attitude altering member from a site separate from the attitude altering drive source.