| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily and surely adjust and maintain the projection length of an incised part from a sheath at two or more stages. <P>SOLUTION: This endoscopic instrument is provided with: a high-frequency knife 2 for carrying out incisional intervention; a wire 3 having a front end connected to the high-frequency knife 2; an outer sheath 5 for allowing the wire 3 to pass therethrough; a main body having the sheath 5 fixed thereto; a first slider, freely sliding on the main body, having the wire 3 fixed thereto; a stopper 7 projecting radially outward relative to the wire 3; a first abutment member 9 making contact with the stopper 7 and regulating forward sliding movement of the wire 3; and a projection-length-adjusting member 8, provided in the outer sheath 5, for regulating backward sliding movement of the wire 3 by making contact with the stopper 7. This configuration allows the high-frequency knife 2 to be maintained at different projection lengths based on the stopper 7 making contact with the first abutment member 9 and the stopper 7 making contact with the projection-length-adjusting member 8. <P>COPYRIGHT: (C)2009,JPO&INPIT |
