Embolic protection device
US8216270B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2006 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Feb 5, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/0097
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An embolic protection device has a collapsible filter element mounted on a carrier such as a guidewire. The filter element collapses into an outer end of a catheter for deployment and retrieval through a vascular system of a patient. The filter element has a collapsible filter body with a proximal inlet end and a distal outlet end. The proximal inlet end has inlet openings sized to allow blood and embolic material enter the filter body. The outlet end has outlet openings which allow through passage of blood but retain embolic material within the filter body. After use, the catheter is movable along the guidewire to engage the proximal end of the filter element and close the inlet openings before sliding over the filter element from the proximal end to the distal end to progressively collapse the filter body on the guidewire for retrieval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.