Maquet HCU 40, Инструкция по эксплуатации

Страница: 56 / 148

| 56 | 4 Operation | HCU 40 |
Instructions for Use | 1.0 | EN | 01
Copyright Maquet Cardiopulmonary GmbH
1 Connect the tubes for the warming/
cooling blanket to the water outlet
[6]
and water inlet [7] of the patient water
circuit 2.
2 Connect the pressure reducer on the water outlet [8] and water inlet [9] of the
patient water circuit 1 if you are not using an oxygenator.
3 Open the stopcocks [1] and [2] .
▶ The handle is in the vertical position: The stopcock is open.
4 Ensure that the stopcocks that are not part of a water circuit are closed.
5 De-air the patient water circuit (⇨ "De-airing the Circuits", page 56).
4.3.3 De-airing the Circuits
WARNING!
With the "De-airing" function, ice-cold water is pumped from the tank into the
tubes and the heat exchanger. The perfusion circuit in which the heat exchanger
being de-aired is integrated must not be operated, as it could provoke a cardiac
arrest if a patient is connected.
NOTE
After switching on the HCU 40, the setpoint temperature setting is always 37°C.
If no setpoint temperature is entered before de-airing, the HCU 40 will
automatically set the temperature of the circulating water to 37°C after de-airing.
Therefore, to reduce the time required before the machine is ready for cooling,
the setpoint temperature should always be entered prior to de-airing.
This function can be used to de-air the patient water circuit and cardioplegia water
circuit independently of each other prior to the application. To this end, the
touchscreen displays symbols for the de-airing in the "Functions" screen.
It generally makes sense to de-air the circuits with connected heat exchangers. In
exceptional situations, it is also possible to de-air without heat exchangers (⇨ "
Key User Functions", page 75).
1
Create the required water circuit (⇨ "Creating a Water Circuit", page 52).