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Start Mechanical Ventilation Operations

5 - 18 046-004667-00 A7™ Operating Instructions

5.6 Start Mechanical Ventilation

NOTE: Before starting a new mechanical ventilation mode, ensure that all

related ventilation parameters are set appropriately.

To start mechanical ventilation from the Standby mode:

1. Set the Auto/Manual ventilation switch to Manual.

2. Exit Standby by touching the main screen or by turning on the fresh gas.

3. Set the Auto/Manual ventilation switch to Auto. The A7 System begins mechanical

ventilation.

5.7 Stop Mechanical Ventilation

To stop mechanical ventilation:

1. Ensure that the breathing system is set up and the APL valve is set properly before stopping

mechanical ventilation.

2. Set the Auto/Manual ventilation switch to Manual. The A7 System stops mechanical

ventilation.

5.8 Relationships of Ventilation Parameters

Ventilation modes may share the same ventilation parameters and values. For example, SIMV-VC

and VCV both include Vt, Plimit, Rate, Tpause, and PEEP. Therefore, these parameter values that

are linked may be passed from the previous ventilation mode to the current mode. Section C.9

‘‘Linked Ventilation Parameter’’ on page C-11 includes a table that lists how the linked parameter

values are set when changing ventilation modes.

Unlinked ventilation parameter values are set according to relationship equations. Section C.10

‘‘Ventilation Parameter Relationships’’ on page C-13 includes a table of equations to show how

unlinked parameter values are set when changing ventilation modes.

5.9 Parameter Monitoring (Numerics)

The system displays parameter monitored values in the monitored parameter area. The

monitored parameters are separated into three groups: pressure, volume and gas (available with

the AG module).

5.9.1 Pressure

The Pressure parameter group consists of three(3) parameters:

• Airway Peak Pressure (PEAK)

• Plateau Pressure (PLAT) or Mean Pressure (MEAN)

• Positive End Expiratory Pressure (PEEP)

If the parameter data is out of range, it displays as “– – –”.

NOTE: The high alarm limit for Airway Peak Pressure (PEAK) displays to the top

right of the reading. The low alarm limit for Airway Peak Pressure

(PEAK) displays to the bottom right of the reading.

NOTE: Configure the display of either Plateau Pressure (PLAT) or Mean

Pressure (MEAN) from the System menu tab.

Mindray A7 Operating Instructions

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