Patent ID: 8403004
Filing Date: 2013-03-26
Classification: G05D,Y10T

Abstract:
1. A variable fluid flow controller for providing a selected flow rate of fluid to a patient, the controller comprising: a controller inlet connectable to a fluid source; a plurality of valves, each valve having an outlet and an inlet, the inlets of the plurality of valves in fluid communication with the controller inlet, at least two valves of the plurality of valves traversable between an open position for permitting fluid to flow through the valve and a closed position for blocking fluid from flowing through the valve; a linearly traversable switch having a earning surface operative to simultaneously traverse at least two of the plurality of valves between the closed position and the open position, the switch sequentially traversable from a first off position to a second prime position, a third flow rate position and a fourth flow rate position wherein a flow rate is zero at the first off position and all valves are traversed to the open position in the prime position; a plurality of flow restrictors inline with the plurality of valves, at least two of the plurality of flow restrictors defining different fluid flow rates; and a controller outlet in fluid communication with the outlets of the plurality of valves and fluidically communicable with the patient.