Dialysis apparatus and method for its control
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United States of America Patent
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Sep 30, 1986
Grant Date -
N/A
app pub date -
Sep 28, 1984
filing date -
Oct 1, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A dialysis apparatus utilizes an expansion chamber in parallel with a pump from which the chamber receives blood via a valve. During the return flow phase the pump rotates in the same direction; but, the valve is closed and a valve at the chamber outlet is opened. The pump draws blood from the chamber and transports it to a dialyzer. A control device regulates the pump and valves depending on the time integral of the pump delivery. In each phase, blood is transported until the chamber has received or discharged a predetermined volume. The pump speed is variable during operation.
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