Flow rate estimation device for a blood pump and a blood pump system including the device
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United States of America Patent
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Sep 18, 2012
Grant Date -
Mar 31, 2011
app pub date -
Dec 8, 2010
filing date -
Apr 15, 2004
priority date (Note) -
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Abstract
In a flow rate estimation device of a blood pump, a general flow rate estimation formula which includes a correction term is formed based on a plurality of blood pumps. Measured data obtained from an objective blood pump implanted inside a patient is substituted into the correction term, thus forming a flow rate estimation formula of the objective blood pump. The flow rate Q of the objective blood pump is estimated based on the flow rate estimation formula and the values of the rotational speed N and the consumption current I of the motor of the objective blood pump, and the attribute data Z of the blood of the patient.
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