| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-quality medical treatment instrument which can execute a therapy to remove a foreign substance in a celom or a thrombus rapidly, accurately and simply. SOLUTION: This medical treatment instrument is so constituted that a therapy section in the celom is disposed at a pointed head region of a slender and flexible main linear section 2, wherein the main linear section 2 comprises a hollow stranded wire coil 4 in which a core material for an operation 3 is inserted, and the therapy section in the celom is so constituted that it is a plurality of spans arrangement of expanded and contracted diameter sections 5A and 5B with the length L comprising the coiled wires 7 of the hollow stranded wire coil 4, and the expanded and contracted diameter sections 5A and 5B can be basket-type expanded diameter variants 6A and 6B comprising the coiled wires 7 and can become contracted diameter variants changed from the expanded diameter variants by a pulling/pushing operation of the core material for the operation 3. COPYRIGHT: (C)2006,JPO&NCIPI
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