Endoscopic high-frequency treatment tool
AssigneeAsahi Kogaku Kogyo Kabushiki Kaisha
InventorTeruo Ouchi
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Abstract
An endoscopic high-frequency treatment tool includes a flexible sheath, a manipulating wire, a fixed electrode and a moving electrode. The manipulating wire is inserted within the flexible sheath and is movable back and forth along a longitudinal axis thereof. The fixed electrode is connected to a tip of the flexible sheath. The moving electrode is connected to a tip of the manipulating wire, and opposes the fixed electrode to form a predetermined gap therebetween in a direction of the longitudinal axis of the manipulating wire. At least one of the fixing and moving electrodes receives a high-frequency current, and the moving electrode is movable toward and away from the fixed electrode by moving the manipulating wire back and forth.
Claims12
An endoscopic monopolar high-frequency treatment tool comprising:
- a flexible sheath;
- a manipulating wire extending through and within said flexible sheath and being movable back and forth along a longitudinal axis thereof;
- a fixed electrode connected to a tip of said flexible sheath;
- and
- a moving electrode connected to a tip of said manipulating wire, and opposed to said fixed electrode to form a gap therebetween in a direction of the longitudinal axis of said manipulating wire;
- wherein at least one of said fixed and moving electrodes receives a high-frequency current, and said moving electrode is movable toward and away from said fixed electrode by moving said manipulating wire said moving electrode and said fixed electrode being electrically coupled to each other throughout a range of movement of said moving electrode.
An endoscopic high-frequency treatment tool comprising:
- a flexible sheath;
- a manipulating wire extending through and within said flexible sheath and being movable back and forth along a longitudinal axis of said flexible sheath;
- a source of high-frequency current;
- a fixed electrode connected to a tip of said flexible sheath;
- a movable electrode connected to a tip of said manipulating wire, and opposed to said fixed electrode to form a gap between said fixed electrode and said moving electrode, in a direction of the longitudinal axis of said manipulating wire, high-frequency current from said source being conducted from one of said fixed and movable electrodes to the other of said fixed and movable electrodes;
- and
- said movable electrode being movable toward and away from said fixed electrode by movement of said manipulating wire.
Dependencies are inferred from the claim text.