Typical Questions And Answers - DeVilbiss Healthcare PulseDose LT Serie Manual Del Usuario

2. Carefully lower the conserving device over the post of the cylinder.
CAUTION– Alignment pins can damage sealing surfaces of the post increasing the chance of leakage.
3. Align the pins in the conserving device to the holes in the cylinder post as you would a standard
regulator.
4. Hand-tighten the knob until the conserving device is secure.
Threaded Cylinder Connections (Model PD1000U, PD1000R, and PD1000G)
1. Align and start the threads on the conserving device with the threads on the oxygen cylinder.
2. Orient the conserving device so that the control panel is easily viewed and the cannula tubing does not
kink.
3. Hand-tighten the nut until the conserving device is secure.
Using Your PulseDose Compact Conserving Device
1. Open the cylinder.
2. Attach the standard nasal cannula to the conserving device and to your nose and face. Oxygen tubing
up to 35 feet long may be used in PulseDose delivery mode.
3. Turn the rotary selector to the prescribed flow setting.
4. Breathe normally, the conserving device will deliver a bolus of oxygen at the leading edge of inspiration
on every breath up to 40 breaths per minute.
5. When you are finished using the PulseDose conserving device, turn your cylinder to the closed position,
and rotate the rotary selector to the "OFF" position.
WARNING
To prevent injury from cylinders tipping over, do not use cannula tubing lengths over 10 feet with small
compressed oxygen cylinders. Unattended cylinders should be secured in a cylinder stand.
NOTE–A mask should not be used in the PulseDose delivery mode as it may not fit to the face well enough to
allow the conserving device to sense inhalation efforts. Also, the therapeutic effect of PulseDose would not be
realized, as the dose of oxygen would be diluted in the mask prior to inhalation.
NOTE– A pediatric or low-flow cannula should not be used in PulseDose delivery mode. The reduced diameter
of the cannula causes too much back pressure and will affect the oxygen volume delivered.
NOTE– PulseDose delivers oxygen in a very short "puff." It does not deliver oxygen during the entire
inhalation. The length of time that PulseDose delivers oxygen will not vary from breath to breath. The time is
set in correlation to the oxygen dosage set on the conserving device (patient's prescription setting).
NOTE– PulseDose is designed to prevent the delivery of pulses more than every 1 1/2 seconds. If the breath
rate is greater than 40 BPM, this feature prevents delivery of excessive oxygen by not dosing on every breath.
NOTE– If using NiMH batteries, carefully monitor when the low battery indicator flashes red. It is
recommended that a spare fully-charged set of alkaline batteries be kept in reserve and installed when the
change battery indicator is constant red.

TYPICAL QUESTIONS AND ANSWERS

Q. How does PulseDose work? How does it know when I'm inhaling?
A. When inhaling, your diaphragm moves down and causes a drop in pressure in the lungs. Air flows in
through the nose and mouth to equalize 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 pressure sensor
in the PulseDose conserving device. An electronic circuit then opens an electrical valve to deliver a
precisely metered dose of oxygen. When the valve is closed, the sensor is ready to detect the next
inhalation.
SE-1000 EN - 7