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Treatment instrument for endoscope



Treatment instrument for endoscope



Official Gazette of the United States Patent & Trademark Office Patents 1280(5), Mar 30



A treatment instrument for an endoscope includes a main body, a cutting wire and an insertion portion. The cutting wire has an insertion portion inserted in the main body and an exposed portion situated at a distal side of the insertion portion and exposed out of the main body. The cutting wire is supplied with high-frequency current, and the insulating member electrically insulates a peripheral surface of the cutting wire. The insulating member insulates that part of the exposed portion, which is other than a non-insulated portion extending in a range of 5 mm to 15 mm from a distal end of the exposed portion. The excision portion is formed of the non-insulated portion of the cutting wire.

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Accession: 035980268

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