Isoray Medical, Inc.

Garrett N Brown

Lane A Bray

David J Swanberg

James L Madsen

Matthew J Bales

Karen Thompson, Legal Representative

Jay Draper

Jay C Draper

Donald C Di Lawrence

Lane Allan Bray

The present invention provides a method of separating and purifying Cesium-131 (Cs-131) from Barium (Ba). Uses of the Cs-131 purified by the method include cancer research and treatment, such as for the use in brachytherapy. Cs-131 is particularly useful in the treatment of faster growing tumors.

Method of separating and purifying cesium-131 from barium carbonate

Method of separating and purifying Cesium-131 from Barium nitrate

This invention includes methods of fabricating brachytherapy implant seeds, methods of fabricating brachytherapy implant seed cores, and brachytherapy implant seeds independent of method of fabrication. In one implementation, a brachytherapy implant seed includes a sealed inorganic metallic cylinder having a radioactive core received therein. The radioactive core includes an inorganic amorphous silicate glass tube having an exterior surface extending axially along the tube. An inorganic crystalline ceramic coating is received on at least a portion of the inorganic amorphous glass tube exterior surface. The coating includes a therapeutic dose of radioactive material. A radiographic marker is received within the sealed inorganic metallic cylinder. Other aspects and implementations are contemplated.

Brachytherapy implant seeds

Growing community of inventors

Richland, WA, United States of America

Garrett N Brown