Support structures for embolic filtering devices
US7172614B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2002 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Sep 8, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/0014
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An inner support structure for an embolic filtering device includes a tubular member having a first support region for supporting the proximal portion of a filter assembly and a second support region for supporting the distal portion of the filter assembly. The inner support structure facilitates rotation and restricts longitudinal movement of the embolic filtering device relative to a guide wire. Alternatively, the inner support structure includes a bushing coupled to the guide wire and a sleeve with a head on its proximal end positioned within a cavity in the bushing, thereby facilitating rotation and restricting longitudinal movement of the sleeve. The proximal portion of the filter assembly is supported on the sleeve. A sleeve for retaining the struts of an expandable cage of the embolic filtering device includes a central lumen for positioning the sleeve onto a guide wire and peripheral lumens for positioning and retaining the struts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.