US Patent 11547846 Pump-valving assembly for a pulsatile fluid pump

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.