User manual

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of the controlling panel [6.3]. The Hamilton ventilator supports the following ventilation

modes:

• (S)CMV – (Synchronized) Controlled Mechanical Ventilation

• SIMV – Synchronized Intermittent Mandatory Ventilation

• Spont – Spontaneous Support

• MMV – Minimum Minute Ventilation

• PCV – Pressure Controlled Ventilation

(S)CMV ventilation mode

(Synchronized) Controlled Mechanical Ventilation is the basic mode of artificial lung

ventilation. It fully substitutes the patient’s breathing. That means that every breath is

controlled by the ventilator. Breathing frequency is set by the operator or controlled by the

patient (assisted ventilation) in case of setting the trigger.

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

CMV

- ventilation frequency, V

- breathing volume, I:E - relative length of inspirium and

expirium, Flow Pattern - the shape of the inspiratory curve, Pressure Trigger - pressure

trigger, PEEP - positive end expiratory pressure, Oxygen - oxygen fraction in the inspiratory

mix, Flow Trigger - flow trigger.

Synchronizing the ventilator with the patient’s breathing activity is only possible when

one of the triggers has been activated (Pressure Trigger or Flow Trigger).

SIMV ventilation mode

Synchronized Intermittent Mandatory Ventilation is a ventilation mode, which allows

for two types of breathing: spontaneous and assisted (controlled). Spontaneous breathing is

detected by the ventilator, which opens the inspiratory valve upon recognizing the patient’s

breathing activity. The second type of breathing is the so called synchronized substitution

breathing, which is synchronized according to the patient’s breathing frequency by his

inspiratory efforts, or it has the character of fully controlled breathing.

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

CMV

and f

SIMV

- ventilation frequency, V

- breathing volume, I:E - relative length of inspirium and

expirium, Flow Pattern - the shape of the inspiratory curve, Pressure Trigger - pressure

trigger, PEEP - positive end expiratory pressure, CPAP - continuous positive airway pressure,

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