Ambu I.V. Trainer Manual De Instrucciones página 16

After connecting the 3 veins and 1 artery, place the plastic cover ring over the tube
connectors (fig. 32).
Hold down the catch on the forearm and press the forearm against the upper arm
until the catch snaps into the groove on the upper arm (fig. 33).
Make sure that the two parts are fastened together and that the forearm can turn in
relation to the upper arm.
Fit the skin as described under Section 6, fig. 16 & 17.
Pull the skin as far up the arm as to cover the plastic ring and to bend approx. 5-10
mm into the groove at the elbow joint. See photo and drawing (fig. 34).
16
fig. 32
fig. 34
fig. 33
5 - 10 mm