Treaton MV200, Руководство пользователя

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6.9 Check of the set tidal volume
6-6
6.9 Check of the set tidal volume
To make the test:
• Assemble the scheme shown on Figure 6.6.
Figure 6.6 – Check of the set tidal volume
•
Connect the ventilator to the oxygen source and switch on the device.
•
Set the following ventilation modes and parameters:
Mode CMV/VCV; Patient: child;
FormFlow = rectangular; Ttrig = 93 %;
FiO
2
= 21 %; P
max
= 60 cmH
2
O;
RB = 15
1
/min; PEEP = 3 cmH
2
O;
V
T
= 200 ml; Tinsp = 1.2 sec;
Ftrig = 10 lpm.
•
In the service menu of the device turn off the H
2
O correction (choose correction by ATP con-
dition on inspiration).
•
In one of the measurement parameter blocks select the indication of Vexp / Vinsp (the inspi-
ration and expiration volumes).
•
Consistently set the values of the tidal volume V
T
= 400 ml, 600 ml, 800 ml, and make sure
that the measuring error of the expiratory volume Vexp and the inspiratory volume Vinsp
does not exceed ± 15%.
If the measurement error exceeds ± 15% calibrate flow sensor on expiration (it. 4.16.3). If it
doesn’t help, device shall be sent for repair.
6.10 Check of PEEP
•
Assemble the scheme on Figure 6.6. Connect the breathing circuit to the device. Connect the
endotracheal tube (ETT) to the patient tee. Install the breathing bag on the patient tee, pre-
viously ETT shall be placed in the breathing bag (3L).
•
Turn on the device, set any mandatory ventilation mode with respiratory rate RB = 15-20
1/min.
•
Consistently set the parameter PEEP = 0, 5, 10, 20 cmH
2
O. After 3 - 5 respiratory cycles
monitor the corresponding values of the PEEP being displayed. Deviation from the set value
shall not exceed ± 2 cmH
2
O.
6.11 Check and calibration of mainstream CO
2
sensor
Check the cleanliness of the mainstream CO
2
sensor and the reusable airway adapter surfaces,
especially their optical elements. Contamination and moisture can cause decreasing of the CO
2
concentration measuring accuracy.
If necessary clean and disinfect the mainstream CO
2
sensor and the airway adapter in accor-
dance with it. 5.1, to make surfaces are dry and clean.
Calibrate mainstream CO
2
sensor: