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XENON-133 RADIOACTIVE STENT FOR PREVENTING RESTENOSIS OF BLOOD VESSELS AND A PROCESS FOR PRODUCING THE SAME

関根 俊明; not registered; 小泉 光生; 石岡 典子; 長 明彦; 渡辺 智

not registered

Radioactive stents used in angioplasty on sclerotic coronary arteries without the risk of restenosis can be produced by ion injecting 133Xe into the surfaces of stents as a nuclide that has a shorter half-life and emits a smaller maximum energy of β-rays than 32p Uniform ion injection is accomplished using an apparatus capable of uniform irradiation of the stents with 133Xe ion beams. The source of 133Xe is a nuclear fission product generated from 235U in the fuel rods in nuclear reactor.