Wet preparation of radiotherapy sources
AssigneeAlpha Tau Medical Ltd.
InventorsMichael Schmidt, Itzhak Kelson
Life of this patent
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Abstract
A method of accumulating radium radionuclides, comprising providing a first solution including thorium radionuclides and a thorium-binding extractant, wherein the first solution does not bind to radium, allowing a portion of the thorium radionuclides in the first solution to decay into radium atoms and collecting radium atoms resulting from the decay. The collected radium atoms may be included in a solution in which brachytherapy sources are dipped, in a manner which collects the radium atoms onto the source.
Claims33
A method of accumulating radium radionuclides, comprising:
- providing a first solution including thorium radionuclides and a thorium-binding extractant, wherein the first solution does not bind to radium;
- allowing a portion of the thorium radionuclides in the first solution to decay into radium atoms;
- and
- collecting radium atoms resulting from the decay.
A method of producing a brachytherapy source, comprising:
- generating a solution including radium atoms;
- and
- dipping a brachytherapy source into the solution, in a manner which collects the radium atoms onto the source.
Apparatus for accumulating radium radionuclides, comprising:
- a first vessel holding a first solution including thorium radionuclides and a thorium-binding extractant;
- a second vessel holding a second solution including radium atoms;
- a pump;
- and
- a processor configured to control the pump to introduce a third solution into the first vessel, and after a sufficient period in which radium atoms are collected, to remove the third solution from the first vessel and transfer it to the second vessel.
A brachytherapy source, comprising:
- a base sized and shaped for insertion into a human organ for brachytherapy;
- a manganese oxide coating over the base;
- and
- radium atoms attached to the manganese oxide coating.
Dependencies are inferred from the claim text.