Blood pump with separate mixed-flow and axial-flow impeller stages, components therefor and related methods
US9775936B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2011 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Feb 10, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49245
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A rotordynamic pump for delivering continuous flow of fluids, such as blood, is provided. In one embodiment, the pump includes a stator housing having an inlet and an outlet. A rotor hub is disposed within the stator housing having a first, mixed-stage impeller and a second, axial-flow stage impellers. One or more stator vanes and extend radially inwardly from the stator housing. In one particular embodiment, the second stage impeller is disposed nearer to the outlet than to the inlet. The stator vanes may include a first set of stator vanes disposed between the first and second stage impellers, and a second set of stator vanes positioned between the second stage impellers and the outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.