Apparatus for crossing total occlusion in blood vessels
US6235000A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1999 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Nov 17, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0096
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Total occlusions are crossed by passing a guidewire or other penetrating wire from a point proximal to the occlusion into a subintimal space between the intimal layer and adventitial layer of the blood vessel wall. The wire is advanced to a point distal to the occlusion and thereafter deflected back into the blood vessel lumen, typically using a deflecting catheter which is advanced over the guidewire after it has been positioned within the subintimal space. After the guidewire is returned to the blood vessel lumen, the deflecting catheter may be withdrawn and the guidewire is available for introduction of other interventional and diagnostic catheters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.