Flow controlled blood pump system
US7435059B2 · kind B2 · utility
43Cited by
19References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2003 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | Jan 15, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/8243
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system for pumping blood to assist or assume the cardiac function of a patient is characterized by a blood pump that exhibits a steep performance curve such that only small changes in pump flow occur for large changes in differential pressure across the pump. The pump therefore exhibits flow-limiting characteristics to protect the physiological system against harmful flow rates or pressures. Pump flow may also be limited by controlling the current provided to a driver from a power supply or by suitable restrictions within or external to the pump housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.