Oxygen Conserver PulseDose 1000

The DeVilbiss PD1000 Oxygen conserver regulates and controls medical grade oxygen from a high-pressure cylinder.

It’s compact and lightweight design means the DeVilbiss PD 1000 is easily fitted to an oxygen cylinder. The Pulse Dose waveform gives true 3:1 conservation of the oxygen in the cylinder. This allows the patient considerably longer use from the cylinder than they would have with the same cylinder fitted with a continuous flow regulator.

How does PulseDose work? How does it know when I’m inhaling?
When inhaling, your diaphragm moves down and causes a drop in pressure in the lungs. Air flows in through the nose and mouth to equalise the pressure. This negative pressure is also present at the nose and mouth during inhalation. This pressure signal travels through the nasal cannula to a sensor in the PulseDose conserving device. An electronic circuit then opens an electrical valve to deliver a metered dose of oxygen. When the valve is closed, the sensor is ready to detect the next inhalation.
The pulse seems so short. Am I really getting enough oxygen?
Yes! PulseDose delivers a precise burst of oxygen at a relatively high flow rate at the leading edge of each inhalation. This assures that the oxygen delivered flows deep into the lungs for maximum benefit. PulseDose requires less oxygen to deliver the same therapeutic benefit as continuous flow oxygen.
I can’t hear the pulse. Is the PulseDose working?
If the pulse can’t be heard, simply look at the green PulseDose indicator on the light scale to see that the device is being triggered by inhalation. For further assurance, hold the end of the cannula in front of your lips while inhaling through your mouth and feel the pulse. PulseDose does not monitor the supply of oxygen. Remember to check the oxygen contents gauge periodically to verify that there is an adequate oxygen supply.
Why can’t I use a cannula that is longer than 10 metres (35 feet)?
The cannula length does not significantly affect the PulseDose triggering, but the delivery of oxygen is affected. If the cannula is longer than 10 metres, the pulse of oxygen is delayed and won’t be delivered at the most beneficial stage of breathing.
I have always used a humidifier with my oxygen. Should I use a humidifier with PulseDose?
No. PulseDose is not able to sense inhalation through the water in the humidifier. Many patients find that humidification is not necessary with PulseDose. They find that PulseDose improves comfort because it delivers a very small amount of oxygen during the early part of inhalation, while the rest of the inhalation is composed of normal room air.
When I’m breathing faster, I don’t get a pulse on every breath. Don’t I need a dose every time?
Because PulseDose breathes with the patient, it has an upper limit of 40 breaths per minute that keeps you from getting too much oxygen. When breathing slowly, a dose is received with every breath. As breath rate increases (up to 40 BPM) PulseDose still delivers a dose with every breath. At this point you are getting more oxygen per minute because each pulse delivers the same amount of oxygen with each breath while the number of breaths has increased.
How long will the AA alkaline batteries last?
The batteries will last approximately 50 days (200 hours) based on a usage of 4 hours per day and 20 breaths per minute at 2 LPM. At a setting of 4 LPM, approximately 26 days (100 hours) and at 6LPM 18 days (70 hours).
How do you change the continuous flow rate setting?
The PD1000 is sold with the continuous flow rate preset at 2LPM. The orifice size of the cannula fitting controls the continuous flow rate. Therefore a different cannula fitting must be installed by the supplier in order to obtain a flow rate of 3, 4, 5, or 6LPM. Each cannula fitting is coloured differently to indicate a different flow rate. Instructions for changing the cannula fitting are contained in the service manual.
If breathing is not detected or the unit is not turned off after being used, will oxygen be wasted?
The PD1000 only pulses oxygen when breathing is detected; therefore there will be no waste of oxygen. Also after two minutes of no breath detection the unit goes into an ultra low power mode to conserve battery power. However it will respond immediately once breathing is detected.