Guiding catheter with embolic protection by proximal occlusion
US7344515B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 17, 2004 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Sep 7, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1068
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A guiding catheter includes an elongate shaft with a central lumen and a mechanically expandable sealing membrane mounted about the distal end of the shaft. An expansion wire is slidably disposed in a dedicated lumen within the catheter, the expansion wire having an expandable distal portion with a pre-formed expanded shape capable of expanding the sealing membrane into sealing engagement with the wall of an artery to provide occlusion of blood flowing through the artery. In one embodiment, a steering wire is slidably disposed in a dedicated lumen within the catheter and is fixed adjacent the shaft distal end. Pushing or pulling the steering wire deflects the distal end of the catheter. In another embodiment, the guiding catheter has a pre-formed curve adjacent the distal end of the shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.