| abstract |
Provided is a medical treatment instrument that can effectively suck smoke and mist generated during a treatment and can improve the usability by having a configuration that can quickly cool a treatment part that generates heat after the treatment. To do. An elongated insertion portion 4 to be inserted into a body cavity, a grasping portion 5 provided at the distal end of the insertion portion 4 for heating and treating a tissue to be treated in the body cavity, a probe 8, and an insertion The sheath 9 into which at least a part of the portion 4 is inserted, and the fluid that is formed between the outer periphery of the insertion portion 4 and the inner periphery of the sheath 9 and supplied to the grasping portion 5 and the probe 8 are sucked from the body cavity. A flow path 12 in which at least one of the fluid flows, a water supply / air supply port 13 and a suction port 14 communicating with the flow path 12, and an opening communicating with the flow path 12 and facing the grip portion 5 and the probe 8. And a portion. [Selection] Figure 1 |