Radioactive medical devices for inhibiting a hyperplastic response and method of making radioactive medical devices
US6616592B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2000 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Jan 11, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1019
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
This invention involves radioactive medical devices for inhibiting an undesirable hyperplastic response in biological tissue, and a method for making the radioactive medical devices. In a preferred embodiment, a medical device for inhibiting a hyperplastic response in biological tissue generally comprises polymeric hydrocarbon molecules forming the medical device and a salt or an acid of a radioactive isotope occluded within the polymeric hydrocarbon molecules. Also in a preferred embodiment, a method of creating a medical device according to the present invention comprises: providing a first solvent in a container; introducing a salt or an acid of a radioactive isotope into the first solvent; introducing a second solvent into the first solution so as to form a second solution; and introducing the medical device into the second solution, wherein the ionic components of the radioactive isotope migrate into the molecular structure of the medical device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.