Fail safe system for operating medical fluid valves
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United States of America Patent
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Aug 8, 2006
Issued Date -
N/A
app pub date -
May 24, 2002
filing date -
May 24, 2002
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A method, system and apparatus for performing peritoneal dialysis are provided. To this end, in part, a cam arrangement for operating a series of valves in cooperation with a pump that pumps fluid to and from a patient, the valves including a supply valve, a drain valve, a from-patient valve and a to-patient valve is provided. The cam arrangement includes a camshaft and a series of cams connected to the camshaft. The cams are positioned and arranged to toggle back and forth between a first open position for the supply valve and a second open position for the drain valve, a third open position for the from-patient valve and the second open position, and the first open position and a fourth open position for the to-patient valve.
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Family
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