Automated disinfection system
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United States of America Patent
Stats
-
Dec 6, 1988
Grant Date -
N/A
app pub date -
Apr 30, 1986
filing date -
Apr 30, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An automated disinfection system for a hemodialysis machine having a proportioning pump includes a manifold block having a check valve for connection to a container of disinfection solution. The manifold block has an outlet connected to the suction line of the pump and an inlet connected to a warm water source via a solenoid valve. A timing and control circuit controls the solenoid valve to produce a water rinse cycle when the solenoid valve is open and a disinfection cycle when the solenoid valve is closed. The check valve closes when positive pressure is present in the manifold block during a rinse cycle and opens to admit solution to the pump when negative pressure is present in the manifold block during a disinfection cycle.
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