Underwater sealed drainage is inappropriate during transport so we use a Heimlech Flutter Valve to drain air from the chest.  This valve will allow air to escape from the chest but will not allow air to return through the system, i.e passage of air is one-way only.

• The underwater seal drainage system is disconnected at the 3 way tap (3 way tap turned off to patient during change over) and using the Vygon connection the Heimlech Flutter Valve is connected.
• The 3 way tap is then opened to baby.