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8. Operating your breast pump
8.1 Terms and designations
2-Phase
Expression
Through research, Medela found that babies nurse in 2
phases – Stimulation and Expression. This research is the basis
for the technology in most Medela breast pumps.
Stimulation phase
Fast sucking/pumping mode to stimulate milk flow.
Expression phase
Slower sucking/pumping mode for gentle and efficient milk
removal after milk has started flowing.
Maximum comfort
vacuum
Highest vacuum setting where pumping still feels comfortable.
Different for every mother.
Let-down
The reflex that makes the milk begin to flow from the breast.
8.2 Operating and display elements
11D-3
11-5
13
11-4A
11-4B
12
13
...
16
...
...
11D-3
...
...
...
...
11D-3
freestyle
freestyle
freestyle
freestyle
freestyle
freestyle
freestyle
freestyle
freestyle
freestyle
freestyle
freestyle
freestyle
freestyle
freestyle
Decrease vacuum
button
Let-down button
Increase vacuum
button
Start/Pause button
On/Off
button
User guidance:
The control and display
elements are not visible at all
times.
When the breast pump is
switched on, the active
elements light up.
Control elements
