The integrated Backup NO delivery system is a completely independent backup NO generating system that is separate from the main delivery system; it has its own NO generator and gas flow delivery system. Backup NO flow can be delivered to one of two different locations by using the System Selector switch located on the front panel of the LungFit PH system. When the Selector Switch is turned to “Bagging System” position, the backup NO module turns on and delivers 1 L/min of 220 ppm of NO through a separate internal NO2 filter to the Bagging System connector on the front panel of the LungFit PH system. The Bagging System connector has two tubing fittings: one for connecting to an air/oxygen source through oxygen tubing or equivalent to provide an external flow of air/oxygen and the other to connect to a manual resuscitator for manually ventilating a patient. The 1 L/min NO flow from the backup NO module is added to this air/oxygen flow which dilutes the NO concentration down to therapeutic levels. Final NO concentration will depend on the amount of external flow added; for example, a flow of 10 L/min will provide 20 ppm of NO to the patient.
An assembly of devices dedicated to the short-term delivery of precise amounts of nitric oxide (NO), also known as nitrogen monoxide, to the respiratory tract of patients for the treatment of severe respiratory failure, particularly when a primary delivery system cannot be used (functions as a backup system). It typically includes a computerized main unit that delivers NO to gases that are to be breathed by the patient via a ventilator or other respiratory device/system and which also monitors this gaseous mixture, and tubing.
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