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US 4,891,165 AGranted
Device and method for encapsulating radioactive materials
AssigneeBest Industries, Inc.
InventorKrishnan Suthanthiran
Life of this patent
Estimating the term…
Abstract
A capsule for encapsulating radioactive material for radiation treatment comprising two or more interfitting sleeves, wherein each sleeve comprises a closed bottom portion having a circumferential wall extending therefrom, and an open end located opposite the bottom portion. The sleeves are constructed to fit over one another to thereby establish an effectively sealed capsule structure.
Claims22
A small, metallic capsule for encapsulating radioactive materials for medical and industrial diagnostic, therapeutic and functional applications, comprising:
- at least first and second metallic sleeves, each of said sleeves comprising a bottom portion having a circumferential wall extending therefrom, and having an open and opposite said bottom portion;
- wherein said first sleeve has an outer surface which is complementary to and substantially the same size as the inner surface of said second sleeve, said second sleeve fitting snugly over the open end of said first sleeve, thereby forming a substantially sealed, closed capsule, having an inner cavity, with substantially uniform total wall thickness permitting substantially uniform radiation therethrough.
Dependencies are inferred from the claim text.