Blood pumps
US11452859B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2021 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | Nov 24, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2316/18
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A blood flow assist system can include an impeller assembly including an impeller shaft and an impeller on the impeller shaft, a primary flow pathway disposed along an exterior surface of the impeller. The system can include a rotor assembly at a proximal portion of the impeller shaft. A secondary flow pathway can be disposed along a lumen of the impeller shaft. During operation of the blood flow assist system, blood can be pumped proximally along the primary flow pathway and the secondary flow pathway. The system can include a sleeve bearing distal the impeller. The system can include a drive unit having a distal end disposed distal a proximal end of the second impeller. The drive unit comprising a drive magnet and a drive bearing between the drive magnet and the impeller assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.