Multi lumen IVC filter retrieval device
US9301828B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Mar 14, 2014 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Mar 14, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/016
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device for retrieving items endovascularly includes a sheath having a first lumen containing a snare that can be deployed out a distal end of the sheath and retracted back into the sheath for pulling an IVC filter into the sheath. The sheath has a second lumen that opens through a sidewall of the sheath proximal of the distal end. The second lumen contains a removal assist device that can be deployed through the sidewall and used to dislodge and/or cut an item to be retrieved from a vein wall. The removal assist device includes a catheter, a cutting head, and a pull wire. The pull wire has a proximal portion protruding from a proximal end of the catheter and a distal end connected to the cutting head. The pull wire is movable within the catheter to selectively extend and retract the cutting head from the distal end of the catheter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.