Sealless rotodynamic pump with fluid bearing
US5370509A · kind A · utility
273Cited by
20References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1993 |
| Grant date | Dec 6, 1994 |
| Priority date | — |
| Expiry date | Dec 8, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S415/90
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A sealless centrifugal blood pump is provided in which a rotatable impeller is supported in a pump housing by fluid bearings during operation. Rotational movement of the impeller is accomplished with an inverted motor for magnetically driving of the impeller and maintenance of the axial running position of the impeller relative to the housing. In an alternative embodiment, the axis of the rotor housing is radially displaced relative to the axes of drive element of the motor and the motor housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.