Perfusion balloon angioplasty catheter
US7087039B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1997 |
| Grant date | Aug 8, 2006 |
| Priority date | — |
| Expiry date | Aug 11, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1095
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A balloon angioplasty catheter having a balloon head assembly carried at the distal end of an elongated catheter body. The balloon head assembly includes an inflatable balloon envelope and a perfusion lumen extending through the balloon envelope to provide a blood flow passage during inflation of the balloon envelope. The invention also encompasses embodiments having a collapsible guidewire lumen for increasing perfusion blood flow upon guidewire withdrawal. Also within the scope of the invention is a distally stepped down perfusion catheter, allowing for decreased distal cross section. In another preferred embodiment, the perfusion lumen is inflatable. In yet another embodiment, the guidewire lumen is external to the perfusion lumen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.