Expandable cage embolic material filter system and method
US6575995B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2000 |
| Grant date | Jun 10, 2003 |
| Priority date | — |
| Expiry date | Jul 12, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/008
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system used in a blood vessel when an interventional procedure is being performed in a stenosed or occluded region, which is capable of enabling an expandable cage assembly therein, adapted to filter the blood in a blood vessel, to be expandable, so as to capture any embolic material that may be created and released into the bloodstream during the interventional procedure. The system includes a catheter which is positionable in a blood vessel at the interventional procedure site. The system further includes an expandable cage assembly, which is expandable and which may be deployed in the blood vessel distal to the interventional procedure site, which includes a plurality of struts, adapted to be expandable from unexpanded condition thereof, wherein each of the plurality of struts includes an element for varying the stiffness along the length thereof, for enabling the expandable cage assembly to be expandable, portions thereof which are in contact in the unexpanded condition, wherein the expandable cage assembly is capable of expanding, while preventing the unexpanded in contact portions thereof from sticking together during expansion and deployment thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.