User manual

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Spontaneous breathing ventilation mode (SPONT)

This mode is designed for patients with spontaneous breathing activity and is used for

its support and greater effectiveness. VEOLAR offers the following support options: supply

of air enriched with oxygen, continuous positive airway pressure (CPAP) and inspiratory

assistance during inspirium (pressure support). In this working mode, the ventilator functions

as a “DEMAND” system, providing the patient with the needed gas flow in selected pressure

values of CPAP or inspiratory assistance. The flow is controlled in such a way as to ensure

expirium of sufficient length. In this working mode, the patient determines the required

breathing volume and the breathing frequency, having given values of the inspiratory

assistance’s positive pressure. It is possible to select “back up” ventilation in case of apnoe.

In the SPONT mode, the following parameters may be set up, marked by luminous

spots: Pressure Trigger - pressure trigger, CPAP - continuous positive airway pressure,

Oxygen - oxygen fraction in the inspiratory mix, Flow Trigger - flow trigger.

MMV ventilation mode

Minimum Minute Ventilation. This ventilation mode allows for spontaneous breathing

with automatic inspiratory assistance, the pressure value of which is selected directly by the

ventilator. In MMV, the patient gets, if necessary, breathing assistance on the level of

inspiratory assistance, yet no controlled breaths. MMV ensures the patient’s minute

ventilation automatically on the level of the pre-set minute ventilation.

In this mode, the following parameters may be set up, marked by luminous spots:

Pressure Trigger - pressure trigger, CPAP - continuous positive airway pressure, Oxygen -

oxygen fraction in the inspiratory mix, Flow Trigger - flow trigger, MMV - minimum minute

ventilation - to be set up via the

∧∨ buttons, followed by pushing the YES button on the

Alarm panel. Just like in the SIMV or Spont modes, the trigger must be set optimally. If the

trigger is switched off, the apparatus will automatically set the alarm off.

During the first breaths, the patient may breathe in the way corresponding to the set

inspiratory assistance. The ventilator compares the volume of the patient’s first eight breaths

by converting them to one minute with the set-up MMV value. If there is a deviation of the

minute ventilation from the set-up value, the balancing of the deficit starts by means of

increasing the pressure support. A change of the pressure support is carried out gradually, step

by step, and depends on the size of the difference between the actual and the required minute

ventilation.