Medical device for delivering localized radiation
AssigneeMedtronic, Inc.
InventorsEric P. Berg, Thomas Q. Dinh
Life of this patent
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Abstract
A medical device useful for localized delivery of radiation in vivo is provided. The medical device includes a structure including a porous material; and a plurality of discrete particles including a water-insoluble radioactive salt dispersed throughout a substantial portion of the porous material. The water-insoluble radioactive salt is formed by contacting an aqueous radioactive salt solution with a heavy metal water-soluble salt dispersed throughout a substantial portion of the porous material. The heavy metal water-soluble salt can be dispersed in the porous material so that the device can be sterilized and the radioactive material can be loaded in the device in situ, for example, just prior to implantation.
Claims8
An implantable device capable of delivering localized radiation in vivo comprising:
- a structure comprising a porous material;
- and
- a plurality of discrete particles comprising a heavy metal water-soluble salt dispersed throughout a substantial portion of the porous material, wherein the heavy metal water-soluble salt forms a water insoluble salt containing a radiation emitting material upon contact with a solution of a radioactive salt.
Dependencies are inferred from the claim text.