miethke M.blue plus Gebrauchsanweisung Seite 25

M.blue plus ® Instruments
NOTE
The M.blue plus Compass reacts sensi-
tively to external magnetic fields. In order
to rule out unwanted interactions, the
M.blue plus Adjustment Ring should not
be placed in the immediate vicinity of the
M.blue plus Compass while determining
the opening pressure. We recommend a
minimum distance of 30 cm.
Swelling of the skin can make adjustment
difficult for a few days after the operation.
If the valve setting cannot be checked
conclusively using the Compass, we rec-
ommend carrying out a check using an
imaging method.
M.blue plus Compass
Fig. 6: Localising the valve
2. Test procedure
Compass
2.0
Fig. 7: Determining the pressure level with the M.blue
plus Compass
Fig. 8: Scale ring of the M.blue plus Compass
1. Inner: Scale of the M.blue gravitational unit from 0
to 40 cmH
2. Outer: Scale of the proGAV 2.0 differential pressure
unit from 0 to 20 cmH
(The opening pressure of the M.blue gravitational unit
in the illustrated example is 16 cmH
proGAV
pressure of the proGAV 2.0 differential pressure unit
M.blue
17 cmH
proGAV 2.0
M.blue
O
2
O
2
O)
2
EN
O, the opening
2