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1.3.6 Various on lung ventilator
The lung ventilator incorporate a series of sensors for continuous patient monitoring,
the most important of which are:
•
the flow sensor on the expiratory line, used to measure the expiratory volumes of
the patient;
•
the pressure sensors, used to control the pressure of the airways or of the
medical gases;
•
the oxygen sensor, used to measure the concentration of oxygen in the gas
inspired by the patient.
MORPHEUS
For the controlled ventilation of newborn patients, make reference to
the chapter 7.4, about use with premature patients.
For a correct comprehension of MORPHEUS anaesthesia unit
operation and for a correct and safe use both for the patient and user,
the knowledge of recommendations and instructions indicated in the
present User's Manual is required.
For anyone who already has basic knowledge of anaesthesia unit
functioning and of lung ventilation in general, the use of the user
interface is intuitive and it will be sufficient to consult this user's manual
in order to use the MORPHEUS anaesthesia unit correctly.
In order to avoid mistakes in the evaluation of the patient's
conditions, the operator shall verify the sensors are correctly
working before using the anaesthesia machine.
The output signals (from the, pressure, flow and oxygen sensors) are
filtered by an R-C circuit from the input circuits. This particular electronic
filtering is used to eliminate disturbances before the signals themselves
are processed by the microprocessor.
1-5
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