Method for detecting undesired dialysis recirculation
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United States of America Patent
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-
May 17, 1994
Grant Date -
N/A
app pub date -
Apr 27, 1992
filing date -
Apr 27, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a dialysis system wherein blood is removed from a patient's vascular system and passed through a dialyzer system comprising an inlet arterial line, a dialyzer, and an outlet venous line, the blood being fed via the inlet arterial line to the dialyzer and returned to the patient via the outlet venous line, a material having a physical property differing from that of blood is injected at a point in the venous return line. The fluid in the dialysis system upstream from the injection point is monitored for the presence of the different physical property whereby direct recirculation from the venous return line to the arterial intake line is detected.
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