Removable embolus blood clot filter
US9872756B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2016 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Oct 11, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0098
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A removable blood clot filter includes a number of locator members and anchor members disposed radially and extending angularly downward from a hub. The locator members include a number of linear portions having distinct axes configured to place a tip portion approximately parallel to the walls of a blood vessel when implanted to apply sufficient force to the vessel walls to position the filter near the vessel centerline. The anchor members each include a hook configured to penetrate the vessel wall to prevent longitudinal movement due to blood flow. The hooks may have a cross section sized to allow for a larger radius of curvature under strain so that the filter can be removed without damaging the vessel wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.