Device for selectively forming a temporary blood filter
US5383887A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 28, 1993 |
| Grant date | Jan 24, 1995 |
| Priority date | — |
| Expiry date | Dec 28, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/0067
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a device which can be implanted inside a vessel to form a blood filter there. The device comprises a structure (7) disposed along the axis (3) of a surface of revolution, radially to which axis the structure can be expanded or compressed such that, in its expanded position, it can contact the interior of the vessel. Means (15, 17) for stressing at least a portion of this structure "in situ" are further provided either to move it closer to the axis of the surface of revolution, forming a constriction area for filtering the blood, or to move it away therefrom, thus varying this filtering capacity. Application to temporary filters which can be implanted "for life".
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.