Filtration unit for retaining blood clots
US5725550A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 9, 1996 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Aug 9, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/0067
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a blood filtration unit which is to be implanted in a vessel (11) of a patient's body, especially for retaining blood clots, comprising a first filter (2) which is to be implanted temporarily, a first catheter (20) for introducing the first filter (2) into the vessel, a second filter (1) which is to be implanted permanently, the second filter (1) having a central opening of which the diameter is sufficiently large to permit the passage of the first filter (2) through it, and a second catheter (22) for introducing the second filter (1) into the vessel (11) and for removing the first filter (2) from the vessel (11).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.