Valve particularly adapted for utilization in controlling the fl

Details Valve particularly adapted for utilization in controlling the fl Valve particularly adapted for utilization in controlling the fl

1975-01-15

1976-08-17

Frinks, Ronald L.

Fluid handling

Line condition change responsive valves

Direct response valves

137527, 251 65, 3 15, 3 17, F16K 1503

Patent

active

039748545

ABSTRACT:
A permanently implantable artificial heart utilizing a pulsatile magneto-motive pump consisting of a pump chamber, which has two cobalt rare-earth permanent magnets spaced apart relative to one another so that unlike poles of each magnet face each other across a predetermined gap, one electromagnet coil, a ferromagnetic piston and a hydraulic fluid. The complete heart consists of two separate half hearts each having one pulsatile magnetic pump, an atrium, a ventricle, respective valves and collapsible hydraulic sacs. A dc pulse applied to the coil determines the pumping stroke rate of the piston which forces hydraulic fluid in and out of the collapsible sacs causing alternating positive and negative pressure gradients in the atrium and ventricle of the heart, thus producing with the help of one directional check valves, a one-directional pulsatile blood flow circulation. The pumping mode of the pistons is designed to act counter directional to each other whereby generated torque forces are greatly neutralized. The total heart is designed to duplicate the natural heart's pumping action by emptying both ventricles simultaneously while the atria are in the process of filling.

REFERENCES:
patent: 2646071 (1953-07-01), Wagner
patent: 3294115 (1966-12-01), Koenigsberg et al.
patent: 3370305 (1968-02-01), Goott et al.
patent: 3445863 (1969-05-01), Wada
patent: 3586029 (1971-06-01), Evers

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