A-A-54444
The ventilator shall be provided with connecting tubing (with connectors) for attachment between the output connector of ventilator apparatus and gas inlet of patient valve; between the transducer input of ventilator apparatus and pressure transducer port of patient valve; and between gas input connector of ventilator apparatus and gas source of 50 psi.
The unit shall have an input to accept 100 percent oxygen, medical-grade air, or blended air/oxygen mixtures from an external blender with a nominal rating of 50 psi.
The ventilator shall have a gas-efficient patient circuit and not require purging of exhaled gas accumulations.
The ventilator shall have a flow rate variable from 0 to at least 100 liters per minute (LPM).
The unit shall have a ventilator rate adjustable from at least 1 to 150 ventilations per minute with a minimum resolution of 1 ventilation per minute (plus or minus 1 digit on the display panel).
Inspiratory times shall be adjustable from at least 0.1 to 3.0 seconds (as limited by the ventilator rate setting) with a minimum resolution of 0.1 seconds (plus or minus 1 digit on the display panel).
Inspiratory pressure (pressure limiting) shall be monitored and limited to a default maximum of 100 cmH2O. It shall be adjustable over the entire high pressure alarm setting range. The ventilator apparatus shall provide a means by which to vent excess pressures away from the patient without disruption of the inspiratory time cycle.
The apparatus shall include a redundant means by which to inhibit gas flow to the patient in the event of CPU failure or CPU detected malfunction. During such occurrences, the ventilator apparatus shall cause the patient valve to default into a non-inspiration condition.
During inverse I:E ratio alarm conditions, the ventilator apparatus shall cause the patient valve to default into a non-inspiration condition.
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