Blood pump

Details Blood pump Blood pump

1991-01-07

1991-08-20

Green, Randall L.

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

Corporeal artificial heart, heart assist , control...

310317, 310323, 417321, A61M 110

Patent

active

050411322

ABSTRACT:
A blood pump with a blood chamber including inlet and outlet ports, the blood chamber being actuated to repeat the cycle consisting of suction and ejection. The blood pump chamber includes, as a driving device, an ultrasonic motor capable of a) converting high frequency wave vibration into rotation by the action of a piezoelectric element provided therein and b) outputting the rotation.

REFERENCES:
patent: 4277706 (1981-07-01), Isaacson
patent: 4504760 (1985-03-01), Yamamoto et al.
patent: 4658172 (1987-04-01), Izukawa
patent: 4725207 (1988-02-01), Buchwald et al.
patent: 4731076 (1988-03-01), Noon et al.
patent: 4743792 (1988-05-01), Ueyama
Williams, M. J. et al., "The Design of a Piezoelectric Heart Assist Device", IEEE Trans. Biomed. Eng., vol. BME-22, No. 1, Jan. 1975.

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