Method and device for monitoring the supply of substitution fluid during an extracorporeal blood treatment
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United States of America Patent
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Dec 14, 2010
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app pub date -
Nov 22, 2002
filing date -
Dec 5, 2001
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Abstract
The invention relates to a method for monitoring the supply of substitution liquid during an extracorporeal blood treatment and to an extracorporeal blood treatment unit equipped with a device for monitoring the supply of substitution liquid. The monitoring of the supply of substitution liquid is based on the measurement of pressure waves, which are generated by the substitution liquid pump, in the extracorporeal blood circulation system. A disturbance in the supply of substitution liquid is inferred when the amplitude of the pressure waves exceeds a predetermined limit value. The amplitude of the pressure waves is preferably monitored in the venous blood line.
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