Instructions: Meditech
microVENT
Page 16 of 28
Part number 011-0045-00
DOC300M
17/03/2021
Issue L
4.1.7 Having established that the patient is not breathing, position the patient as for mouth-to-mouth
resuscitation. The airway can be opened by head tilt, chin lift or jaw thrust. The head tilt
method is illustrated in figure 3.
Figure 3: Opening the airway
4.1.8 Clear the patient's mouth of any foreign materials and check to see if the patient has
commenced spontaneous breathing.
4.1.9 Attach the
microVENT
to an active regulated gas supply:
•
Connect the oxygen input fitting on the
microVENT
supply hose to the oxygen regulator
attached to the cylinder in accordance with the regulator manufacturers instructions,
turn on the Oxygen Cylinder valve slowly.
•
Or connect the oxygen input fitting on the
microVENT
supply hose to an oxygen wall
outlet in the hospital or ambulance.
4.1.10 On the
microVENT
select the manual setting (Fig:1,r). Use the appropriate size of Face Mask
and attach to the Patient Valve (t).
4.1.11 If no respiratory effort is observed position yourself above the patient's head and apply the
Face Mask over the patient's nose and mouth and use both hands to obtain a good seal and
support the jaw (Fig:4).
4.1.12 Squeeze the Manual Trigger (Fig:1,v) towards the Face Mask and observe the rise of the
patient's chest. The operation of the Manual Trigger does not require a violent pull. A gentle
squeeze of the trigger will supply oxygen and inflate the lungs.
4.1.13 Excessive pressure on the Manual Trigger will not result in more oxygen being supplied to the
patient, and may damage the device.
4.1.14 Once sufficient patient chest rise has been observed, release the manual trigger so the
resuscitator is no longer inflating the patient’s lungs. This allows the patient to passively
exhale back through the mask and out through the patient valve. It is normal to allow 2 to 3
seconds exhalation (expiratory) time so the patient has completely exhaled. (It is not
necessary to remove the facemask or Microvent from the patient’s face for the patient to
exhale.)
4.1.15 If the patient's chest does not rise or gas escapes around the mask or the Pressure Relief
Valve (Fig:1,s) operates, with an audible tone, reposition the patient's head and adjust your
hand position to obtain an effective seal and an open airway.
4.1.16 Over inflation will be indicated by excessive chest rise and eventually by the operation of an
audible tone of the Pressure Relief Valve. Under inflation will be indicated by too shallow a rise
in the patient's chest.
