Medical device for delivering localized radiation
US6106454A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1997 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Jun 17, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N5/1002
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.