Catheter system having tubular radiation source
US6676590B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1997 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Dec 8, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1004
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A radiation source for inhibiting restenosis including a radiation delivery tube having a radioactive distal region, the tube being adapted to slide over a guide wire within a radiation delivery catheter. One tube has radioactive material incorporated into the tube wall material. Another tube has radioactive material secured to the tube surface. One radiation delivery balloon catheter includes a common inflation and radiation delivery lumen, the lumen being sealed distally and having a radiation source guide wire within the lumen. The lumen is sealed from contact with bodily fluids and is filled with inflation fluid during use. In use, the catheter balloon is advanced to a site to be treated, the balloon inflated, and the radioactive tube advanced over the radiation source guide wire within the lumen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.