A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
137/110, 210/47
A61M 5/14 (2006.01)
Patent
CA 1265974
SEQUENCE VALVE FOR PIGGYBACK IV ADMINISTRATION WITH OCCLUSION FAILURE SENSING ABSTRACT OF THE DISCLOSURE A piggyback IV administration system uses a solenoid actuated sequence valve to control the flow of fluid from a pair of IV fluid sources to the inlet of an IV pump or controller. The sequence valve pinches off a first tube while allowing fluid to flow through the second tube and then, in response to a control signal, changes state so that the second tube is pinched off and fluid can flow through the first tube unimpeded. The sequence valve automatically senses conditions which indicate a failure of the sequence valve to occlude the second tube when the valve changes state.
518466
Archibald G. Kent
Slaker Frank A.
Minnesota Mining And Manufacturing Company
Smart & Biggar
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