Atrial appendage blood filtration systems
US9883936B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2015 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Mar 15, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/0093
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Instrumentation for percutaneous delivery of blood filtration devices to atrial appendages includes a curved access sheath and a delivery tube. A compressed filter device attached to a tether wire is loaded in the delivery tube. The access sheath and the delivery tube can be mechanically locked and moved together to place the device in a suitable deployment position. The device is deployed by expelling it from the delivery tube either by retracting the delivery tube over the tether wire, or by moving the tether wire forward through the delivery tube. A filter membrane in the deployed device extends across the appendage ostium to filter blood flow through the ostium. The filter membrane is configured to present a flat surface to atrial blood flow past the ostium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.