Streamlined unobstructed one-pass axial-flow pump
US7229258B2 · kind B2 · utility
151Cited by
68References
21Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 24, 2004 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | Sep 24, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2316/18
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A blood pump has an impeller rotatably disposed and magnetically suspended within a cavity of a stator by a plurality of magnetic bearings (passive permanent and active electromagnetic) having impeller magnets on the impeller and stator magnets or coils/poles on the stator. A motor includes impeller magnets on the impeller and coils/poles associated with the stator. A single, annular blood flow path extends axially through the cavity between the impeller and the stator, and between the impeller magnets on the impeller and the stator magnets or the coils/poles on the stator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.