Devices and methods for radiation treatment of an internal body organ
US5863284A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 20, 1996 |
| Grant date | Jan 26, 1999 |
| Priority date | — |
| Expiry date | Aug 20, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1025
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention provides methods and devices for delivering low level radiation to inhibit neointimal hyperplasia following angioplasty or other intravascular procedures. In an exemplary method, a balloon is inflated within a stenosed region of a blood vessel to produce a treated region. The balloon is then deflated and a radioactive source within a sleeve is aligned over the deflated balloon. The balloon is again inflated at the treated region to engage the sleeve having the radioactive source against the blood vessel within the treated region for from 1 to 40 minutes to deliver a sufficient dose of radiation to inhibit neointimal hyperplasia.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.