Impeller for axial flow pump
US9561313B2 · kind B2 · utility
53Cited by
1References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 14, 2014 |
| Grant date | Feb 7, 2017 |
| Priority date | — |
| Expiry date | Oct 16, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/181
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A rotor for an axial-flow blood pump has blades projecting outwardly from a hub and channels between the blades. The blades incorporate hydrodynamic bearing surfaces capable of suspending the rotor during operation. The rotor has a configuration which provides superior pumping action and reduced shear of blood passing through the pump. The forwardly facing pressure surfaces of the blades may include outflow corner surface at their downstream ends. The outflow corner surfaces desirably slope rearwardly and intersect the rearwardly-facing suction surfaces of the blades at outflow ends of the blades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.