| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ablation therapeutic device which has durability for use in ablation of the prostate and can efficiently perform therapeutic treatments including incision and coagulation, and to provide a resectoscope and an ablation method for a living body tissue. <P>SOLUTION: The ablation therapeutic device includes a therapeutic electrode 63 which is disposed at a distal end portion of the resectoscope and has a first loop-shaped portion 63a at a distal end thereof, and a retractor 64 which has a second loop-shaped portion 64b extending to a position in front of the therapeutic electrode 63, has a higher rigidity than the therapeutic electrode 63, and performs an ablation therapeutic treatment of a living body tissue by a push-out operation. The therapeutic electrode 63 has a bend portion 63b which is bent in an obliquely forward direction from a perpendicular plane P1 to a direction of an axis of the resectoscope 1, and the retractor 64 has a length in a direction of the perpendicular plane P2, which is less than a length of the bend portion 63b of the therapeutic electrode 63 in the direction of the perpendicular plane P2. <P>COPYRIGHT: (C)2009,JPO&INPIT |
