4. POWER MANAGEMENT IN THE VITALOGRAPH AIM
The AIM operates with 4 AAA 1.5V disposable batteries. If the battery light (See Figure 2) comes on the
batteries need to be replaced. Replace the batteries by removing the battery door on the underside of
the device.
Note: Dispose of used batteries safely.
5. OPERATING THE VITALOGRAPH AIM
1. Connect a new MDI or DPI inhaler simulator mouthpiece to the device via the silicone tubing.
Note: The inhaler simulators are single patient use.
2. If an MDI inhaler simulator mouthpiece is being used insert the placebo.
Note: If a placebo is not fitted then flow measurements will not be correct.
3. Press the power button and select the inhaler simulator option
DPI simulator
MDI simulator
Spacer simulator
4. Instruct the test subject to breath fully out, but not through the inhaler simulator.
5. Instruct the subject to position the inhaler simulator between the lips sealed around the
mouthpiece.
Note: Ensure that the holes adjacent to the tubing connection to the inhaler simulator are not
obstructed.
6. Depending on the inhaler simulator option selected the following instructions should be followed:
a. DPI Simulator
i. Instruct the subject to take a forceful deep breath in until their lungs are full. The flow
lights will light up.
ii. The aim is to get the flow indicator into the green zone as quickly as possible, but not
to inhale too fast.
iii. The subject should continue to inhale until their lungs are full. The inhalation time
lights will light up one second at a time.
iv. The subject should hold their breath for as long as comfortable (at least 3 seconds).
The breath hold lights will light up one second at a time.
v. When the subject ceases breath hold, press the end of breath-hold button.
b. MDI Simulator
i. Instruct the subject to take a slow deep breath and simultaneously press the placebo
canister. The flow lights and the canister activation lights will light up.
ii. The aim is to press the canister as the subject starts to inhale, and to continue to
inhale for as long as possible, but not too fast.
