Blood Pump (Single Needle), Optional - Fresenius Medical Care 4008 E Technical Manual

1.2.2

Blood pump (single needle), optional

Essentially, the blood pump (single needle) is identical with the arterial blood pump. The
difference lies in the single needle control. During SN operation, the pressure outlet of the
compliance vessel is connected to the pressure connector of the SN pump. The pressure
transducer is protected by a hydrophobic filter both in the external and the internal tubing system.
The SN stroke volume can be set within a range from 10 ml to 50 ml in increments of 5 ml.
The lower changeover point is fixed to 75 mmHg.
The upper changeover point depends on the stroke volume:
Stroke volume (ml)
Changeover point (mmHg)
± 7 mmHg
10 15 20 25
110 130 150 172
Fresenius Medical Care 4008 4/08.03 (TM)
30 35 40 45
195 219 244 270
50
299
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