Patent attributes
A blood treatment method using high-degree-of-freedom forceps. The forceps main body includes a joint portion and a tip working portion provided on a distal end portion, a handle provided on a proximal end, which is held and manipulated, and an input portion provided on the handle. The controller drives the joint portion and the tip working portion with at least 2 degrees of freedom and in response to an input to the input portion. In the blood vessel treatment method, a membranous tissue covering a blood vessel is incised, the blood vessel is detached from the tissue, a branch is cut off from the blood vessel, or a peripheral side of the blood vessel is cut off, by respective inputs to the input portion, in the state where a distal side of the forceps main body is inserted into the body cavity.
