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ELECTRODE NEEDLE OF PUNCTURING RADIO KNIFE FOR LAPAROSCOPY AND PRODUCTION METHOD OF ELECTRODE NEEDLE OF PUNCTURING RADIO KNIFE FOR LAPAROSCOPY,
ELECTRODE NEEDLE OF PUNCTURING RADIO KNIFE FOR LAPAROSCOPY AND PRODUCTION METHOD OF ELECTRODE NEEDLE OF PUNCTURING RADIO KNIFE FOR LAPAROSCOPY,
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机译：腹腔穿刺电刀的电极针和生产方法腹腔穿刺电刀的电极针和生产方法
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摘要
PROBLEM TO BE SOLVED: To provide a construction and a cheap method of production of an electrode needle of a puncturing radio knife for laparoscopy to cut and coagulate the affected part tissue by electric energy, with which the abdominal wall can be punctured (without a trocar) to perform cutting and coagulation.;SOLUTION: The electrode needle of the puncturing radio knife is produced to have a metal rod of stainless steel or the like as a material which is slimmed by electrolysis or the like to have a fine diameter besides an electrode part which is connected to a source electrode, and the fine-diameter long needle part is inserted in a tube of a heat-shrinkable insulation resin to make the same to be adhered by thermal contraction so that the part other than a pointed head and an electrode connecting section becomes to be insulated. The electrode needle is comprised of the cylindrical connection section with an outer diameter of 4-8 mm and a length of 10-40 mm which is inserted in a source electrode aperture and the long needle section with an outer diameter of 1-3 mm and a length of 100-400 mm which is connected to the cylindrical connection section as one body with a coaxial core.;COPYRIGHT: (C)2005,JPO&NCIPI
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