Piezoelectric fluid pumping system for use in the human body

Details Piezoelectric fluid pumping system for use in the human body Piezoelectric fluid pumping system for use in the human body

1986-12-22

1988-03-15

Frinks, Ronald L.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Corporeal artificial heart, heart assist , control...

623 2, 128 1D, 128 25R, 128 64, 128DIG3, 417322, 417412, 417413, A61F 222, A61M 110, A61H 102, A61H 700

Patent

active

047310766

ABSTRACT:
A totally or partially implantable fluid delivery system actuated by a valveless piezoelectric drive system. The drive system may actuate an artificial heart by a hydraulic bladder or directly actuate a human heart. The drive system has an output with a frequency and displacement sufficient to directly drive a human or artificial heart and includes a control circuit for recapturing and reusing the power driving the piezoelectric drive system. An artificial heart which includes two check valves having a flexible valve element and supporting tabs on opposite sides.

REFERENCES:
patent: 3425064 (1969-02-01), Carnevale et al.
patent: 3478737 (1969-11-01), Rassman
patent: 3568214 (1971-03-01), Goldschmied
patent: 3636570 (1972-01-01), Nielson
patent: 3857382 (1974-12-01), Williams, Jr. et al.
patent: 3963380 (1976-06-01), Thomas, Jr. et al.
patent: 4493314 (1985-01-01), Edwards, II
patent: 4536893 (1985-08-01), Parravicini
patent: 4621617 (1986-11-01), Sharma
The Piezoelectric Artificial Heart, by M. L. Loehr et al., vol. X, Trans. Amer. Soc. Artif. Internal Organs, 1964, pp. 147-150.
The Design of a Piezoelectric Heart Assist Device, Williams et al., I.E.E.E. Transactions on Biomedical Engineering, vol. BME 22, pp. 40-45, Jan. 1975.

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