Surgery – Radioactive substance applied to body for therapy – Radioactive substance placed within body
Patent
1998-03-17
2000-11-21
Dvorak, Linda C. M.
Surgery
Radioactive substance applied to body for therapy
Radioactive substance placed within body
A61N 500
Patent
active
061495743
ABSTRACT:
Disclosed is a dual catheter radiation delivery system, for delivering a dose of radiation to a treatment site, typically in a body lumen. The system comprises an outer sheath catheter, having an inflatable balloon thereon. The system further comprises an inner radiation delivery catheter, having a radially expandable structure such as a balloon with a radiation source thereon. The sheath catheter is positioned such that the sheath balloon is at the treatment site, and the radiation delivery catheter is transluminally advanced through the sheath catheter such that the radiation source is positioned within the sheath balloon. The radiation delivery balloon is inflated within the sheath balloon, to position the radioactive source near the vessel wall. The source may comprise a thin film carried by the radiation delivery balloon, having a radioactive isotope implanted therein or chemically bonded thereto. Alternatively, the radioactive isotope may be implanted within or adhered to the radiation delivery balloon.
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Radioactive Balloon Catheter to Inhibit Restenosis after Angioplasty.
Buchbinder Maurice
Henson Michael
McCormick Paul
Trauthen Brett
Dvorak Linda C. M.
Kearney R.
Radiance Medical Systems, Inc.
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