Convertible blood clot filter
US6652558B2 · kind B2 · utility
156Cited by
9References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2003 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Apr 17, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/0067
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A vena cava blood clot filter is described that is attached to the walls of the vena cava by barbed anchors. In its filtering state, the filter is cone shaped which causes the blood to be filtered. The cone shape is formed by an appropriate restraining mechanism. When it is desired to stop filtering, the restraining mechanism is released and the filter takes a cylindrical shape. The cylindrical shaped filter will then line the vena cava wall and cease filtration of the blood.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.