Pump-valving assembly for a pulsatile fluid pump
US11547846B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2021 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Feb 23, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M60/268
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A pump-valving assembly for a pulsatile fluid pump includes a pumping chamber, an inlet port, and an outlet port. The pump-valving assembly further includes an inlet ball check-valve assembly, first and second tapered tracts disposed between the inlet port and the pumping chamber, an outlet ball check-valve assembly, and third and fourth tapered tracts disposed between the pumping chamber and outlet port. The first tapered tract expands in cross sectional area from the inlet port to the inlet ball check valve assembly, and the second tapered tract decreases in cross sectional area from the inlet ball check valve assembly to the chamber. The third tapered tract expands in cross sectional area from the chamber to the outlet ball check valve assembly and the fourth tapered tract decreases in cross sectional area from the outlet ball check valve assembly to the outlet port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.