Device and method for delivery of uniform and controlled radiation dose to blood vessels
US6409652B1 · kind B1 · utility
18Cited by
10References
21Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 20, 2000 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Sep 20, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1003
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides a device, system and method for uniformly delivering a radiation dose over the surface area of a stenosed vessel during or after a percutaneous transluminal angioplasty procedure. A helical balloon is inflated in the region to be treated, preferably in contact with the vessel wall, and a radiation source is drawn through the helical coils of the balloon to provide a uniform dosage. Alternatively, the helical balloon is disposed within a cylindrical balloon and the helical balloon containing a radiation source with at least one coil is drawn through the cylindrical balloon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.