| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to obtain a clamping power quantity sufficient for clamping and fixing soft vital tissues by forming an operation shaft of a superelastic member and disposing a pressing member which is pressed to treatment parts to operate the treatment parts to open when an optical shaft is deflected at the time of operating an operation handle to open into a sheath. SOLUTION: Clamping forceps 1 are provided with an insertion part 2 to be inserted into the celom through a trochal, etc. The treatment parts 3 are disposed at the front end of this insertion part 2 and the operation handle 4 to operate the treatment parts 3 is disposed at the base end of the insertion part 2. The insertion part 2 is provided with the slender hollow tubular sheath 5 and the treatment parts 3 are provided with a pair of clamping members 7, 8 for clamping the organs in the celom. The operation shaft 19 of the treatment parts 3 is formed of the superelastic alloy material exhibiting pseudo elasticity or superelasticity. The pressing member 31 consisting of a rigid pipe of the length approximately equal to the length of the operation shaft 19 is armored on the circumference of the operation shaft 19 into the sheath 5. |
