Patent ID: 8226544
Filing Date: 2012-07-24
Classification: A61B

Abstract:
1. An endoscope treatment tool comprising: a cylindrical distal end member installed at the distal end of an endoscope, a treatment portion for performing a treatment relative to a biological tissue, an insertion portion provided so as to freely extend and retract in an axial line direction of the endoscope and the treatment portion is fixed at the outer circumference of the distal end thereof, a connection member for connecting both the treatment portion and the cylindrical distal end member in a freely rotatable manner, a first pivot shaft which is disposed on the distal end side of the treatment portion for connecting the connection portion and the treatment portion in a freely rotatable manner, a pair of second pivot shafts which are disposed on the distal end side of the distal end member and are formed along a diameter perpendicular to a longitudinal direction of the distal end member for connecting the connection member and the distal end member in a freely rotatable manner; wherein the connection member is curved so as to follow the outer shape of the distal end member; and the pair of second pivot shafts are disposed so as to be able to rotate the connection member so that the first pivot shaft is moved from a location which is proximal to the pair of second pivot shafts to a location which is distal to the pair of second pivot shafts.