Linear flow blood pump
US6361292B1 · kind B1 · utility
42Cited by
7References
9Claims
0Family size
Inventors
Key dates
| Filing date | Apr 12, 2000 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Apr 12, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M60/148
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention herein is a ventricular assistive device (VAD) based on a progressive cavity pump. A progressive cavity pump does not use blades or fins to propel the blood. Instead, the pump stator and rotor are designed so that, when combined, there are a series of cavities formed between the pump rotor and the stator wall. Blood is carried through the pump chamber in these cavities when the rotor rotates. In the preferred embodiment of the invention, the cavities progress on a straight line path through the pump, providing an efficient and unobstructed channel for blood flow and minimizing the risk of thrombus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.