Hello, McVeigh ventilator is a kind of equipment commonly used in respiratory therapy, and oxygen battery is one of its important components. When the power of oxygen battery is insufficient, it needs to be replaced in time to ensure the normal operation of ventilator. The following steps are to replace the oxygen battery of McVeigh ventilator:

1. First, determine the model of oxygen battery to be replaced and prepare a new oxygen battery.

2. Turn off the ventilator and unplug the oxygen battery.

3. Remove the original oxygen battery, and be careful not to use too much force to avoid damaging the ventilator.

4. Insert a new oxygen battery into the ventilator, ensure that the plug is aligned with the socket, and gently rotate it until the plug is locked.

5. Turn on the power supply, turn on the ventilator, and check whether the oxygen battery works normally.

It should be noted that when replacing the oxygen battery, it is necessary to use the oxygen battery with the specifications and models matching the ventilator, otherwise it may affect the normal operation and treatment effect of the ventilator. At the same time, when replacing oxygen batteries, attention should be paid to safety to avoid accidents such as electric shock.