Flow balancing and synchronization system and method, especially for citrate
First Claim
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1. A renal failure therapy system comprising:
- a blood pump;
a citrate pump;
a filtrate pump; and
a control unit configured to automatically control the blood pump, the citrate pump, and the filtrate pump to (i) achieve a citrate flowrate that is based on a blood flow rate so the flowrates are synchronized, (ii) perform the equation;
filtrate pump rate=total input rate−
total output rate+prescribed net loss rate, and (iii) control the filtrate pump according to the calculated filtrate pump rate.
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Abstract
A renal failure therapy system includes a blood pump; a citrate pump; and a control unit configured to automatically control the blood pump and the citrate pump to achieve a citrate flowrate that is based on a blood flowrate, so that the flowrates are synchronized.
65 Citations
7 Claims
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1. A renal failure therapy system comprising:
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a blood pump; a citrate pump; a filtrate pump; and a control unit configured to automatically control the blood pump, the citrate pump, and the filtrate pump to (i) achieve a citrate flowrate that is based on a blood flow rate so the flowrates are synchronized, (ii) perform the equation;
filtrate pump rate=total input rate−
total output rate+prescribed net loss rate, and (iii) control the filtrate pump according to the calculated filtrate pump rate. - View Dependent Claims (2, 3)
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4. A renal failure therapy method comprising:
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pumping blood through a blood circuit of a renal failure therapy machine; infusing citrate as an anticoagulant; configuring the renal failure therapy machine to perform the equation;
a filtrate pump rate=a total input rate−
a total output rate+a prescribed net loss rate, wherein the total input rate includes the flowrate of citrate; andcontrolling (i) a flowrate of the citrate based on a flowrate of the blood automatically so that the flowrates are synchronized, and (ii) a filtrate pump according to the calculated filtrate pump rate. - View Dependent Claims (5, 6, 7)
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Specification