Closed tip dynamic microvalve protection device
US9770319B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2014 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Apr 28, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/0067
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endovascular microvalve device for use in a vessel during a therapy procedure includes an outer catheter, an inner catheter displaceable within the outer catheter, and a filter valve coupled to the distal ends of the inner and outer catheters. The valve is constructed of a braid of elongate first filaments coupled together at their proximal ends in a manner that the first filaments are movable relative to each other along their lengths. A filter is provided to the braid formed by electrostatically depositing or spinning polymeric second filaments onto the braided first filaments. The lumen of the inner catheter delivers a therapeutic agent beyond the valve. The device is used to provide a therapy in which a therapeutic agent is infused into an organ.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.