Q. How does the system work? How does it know when I'm breathing?
A. The system detects the
negative pressure created as a person inhales. This pressure
signal travels through the nasal cannula or facemask to a
pressure sensor in the Pulse Dose Conserver. Ac
circuit then opens al valve to deliver a precisely
metered dose of oxygen. When the valve is closed, the sensor
is ready to detect the next inhalation.
Q. The pulse
seems so short. Am I really getting enough oxygen?
A. Yes. The system delivers
a precise burst of oxygen at a relatively high flow rate
at the leading edge of each inhalation. This ensures that
the oxygen delivered flows deep into the lungs for maximum
benefit. Our PD systems require less oxygen to deliver the
same therapeutic benefits as continuous flow oxygen delivery.
Q. I
can't hear the pulse. Is the system working?
A. If the pulse can't be
heard, simply hold the end of the cannula in front of
your lips while inhaling through your mouth and feel the pulse.
Remember the system does not monitor the supply of oxygen.
Remember to check the pressure gauge on the cylinder periodically
to verify that there is an adequate supply.
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