| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high frequency treatment instrument for an endoscope, capable of coping with a plurality of treatments of ESD. <P>SOLUTION: The high frequency treatment instrument for an endoscope includes: a flexible sheath; a wire; a knife part; a connection member for connecting the wire and the knife part; a conductive distal end member fitted to the distal end of the flexible sheath and provided with a through-hole to which the knife part is to be inserted; an operation part for moving the knife part forward and backward by moving the wire back and forth inside the flexible sheath; and a contact part capable of connecting a high frequency power source for making a high frequency current flow to the knife part. The distal end face of the distal end member is exposed from the distal end of the flexible sheath, the knife part has a projection part at the distal end part, and when the knife part is moved back, the projection part is abutted to the distal end face of the distal end member and electrically connected. <P>COPYRIGHT: (C)2013,JPO&INPIT |
