Surgery – Radioactive substance applied to body for therapy – Radioactive substance placed within body
Patent
1990-08-13
1994-08-30
Cohen, Lee S.
Surgery
Radioactive substance applied to body for therapy
Radioactive substance placed within body
A61N 500
Patent
active
053422830
ABSTRACT:
To provide versatile radioactive implants and methods of radiation therapy, plating methods such sputtering, as are used to coat single elements such as microspheres, wires and ribbons with radioactive metals, protective layers and identification layers. The resulting solid, radioactive, multilayered seamless elements are implanted individually or combined in intercavity applicators, with fabrics and in ribbons. Because they have selected half-lives and intensities, they provide flexibility in treatment, permitting low intensity or high intensity treatment, using temporary or permanent implants and implants with high intensity or low intensity or controured intensity to permit different therapies.
REFERENCES:
patent: 4702228 (1987-10-01), Russell, Jr. et al.
patent: 4754745 (1988-07-01), Horowitz
patent: 4994013 (1991-02-01), Suthanthiran et al.
Carney Vincent L.
Cohen Lee S.
Lacyk J. P.
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