Surgery – Radioactive substance applied to body for therapy – Radioactive substance placed within body
Patent
1997-09-19
1999-09-07
Lacyk, John P.
Surgery
Radioactive substance applied to body for therapy
Radioactive substance placed within body
600 5, 600435, A61N 500
Patent
active
059478900
ABSTRACT:
The present invention first relates to an apparatus for dispensing liquid radiation for intraluminal radiation therapy. The apparatus uses two arms of a three-way stopcock to permanently connect a balloon-tipped catheter with an inflation syringe. The inflation syringe is fabricated from material which substantially limits radiation exposure. The apparatus is then placed into a sterile and closed catheter package comprised of a tray and a removable cover. The tray includes a port fashioned into its side, which receives the third arm of the three-way stopcock. Through this port, a radiopharmacist may inject liquid radiation into the inflation syringe while the apparatus remains within the sterile catheter package. In this manner, the medical staff are not required to load liquid radiation into the catheter assembly in the operating room, and may thereby avoid the risk of spillage and the risk of exposure to radiation incident to the loading process.
An improved method for delivering liquid radiation for intraluminal radiation therapy is also presented. Liquid radiation is loaded into the catheter assembly described above by the radiopharmacist at the radiopharmacy. The assembly is then transported to the operating room in a carrying case which is impermeable to radiation. In this manner, the operating team, the hospital personnel, and the visiting public are not exposed to radiation. Intraluminal radiation therapy may then be administered using the apparatus of the present invention.
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Spencer Linda S.
Spencer Robert H.
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