Method of controlling blood pump

Details Method of controlling blood pump Method of controlling blood pump

1998-01-26

2000-10-10

Evanisko, George R.

Surgery

Cardiac augmentation

With condition responsive means

623 3, 415900, A61M 110

Patent

active

061296600

ABSTRACT:
When a current is set, a PI control portion performs proportional integration control, a power amplifying circuit performs power amplification, whereby a current flowing through a motor is controlled to have a constant value. Further, the changes of the number of rotation is positively feedback and the changes are added to the set current by an adder. Further, blood viscosity is detected by a viscosity detecting circuit, an amount of correction is calculated by a correcting amount operating circuit so that it becomes equal to a reference value, and the calculated correcting amount is added to the adder.

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patent: 5725357 (1998-03-01), Nakazeki et al.
Nishimura et al, "Control of the Pressure Flow Relationship With a Magnetically Suspended Centrifugal Pump in a Chronic Animal Experiment", ASAIO Journal, 1997, M553-M556.

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