Pressure Rating Identification In X-Ray Images - MIETHKE M.blue Mode D'emploi

EN | INSTRUCTIONS FOR USE
PRESSURE RATING IDENTIFICATION IN
X-RAY IMAGES
The selected pressure level for M.blue should
always be monitored using the M.blue plus
Compass, but it can also be checked using
an x-ray image. The rotor setting is decisive in
this case. The four magnets in the rotor can be
seen on the x-ray image as white points and
are located opposite each other in pairs. Two
additional burrholes (right and left next to the
magnet pairs) on one side of the rotor can be
used as orientation. They can be seen as black
points on the x-ray image. This side can be des-
ignated as the rotor rear side. The two front
magnets are on the opposite side. The space
between these two magnets can be considered
as the triangle apex. The pressure level can be
read off using the orientation of this intermedi-
ate space (fig. 4). The triangle apex can take
up any position except the space labelled as a
non-adjustable area in fig. 4. This means that
the opening pressure of M.blue can be variably
adjusted from 0 up to 40 cm H
to read off the pressure level in reverse, the top
view of the implanted valve in the housing ring
has a recess with the tantalum weight to the
right of the inlet nozzle (fig. 4).
Fig. 4: Schematic representation of rotor in x-ray image
1. Coding burrhole gravitational unit 2. Coding burrhole
differential pressure unit 3. Triangle tip
4. Nonadjustable range
5. proximal
6. distal
20
O. In order not
2
Fig. 5: X-ray image (adjustable gravitational unit preset
to 20 cmH O; differential pressure unit: 5 cmH
2
The pressure level of the differential pressure
unit can be recognised in the X-ray image by the
encoding (fig. 5). The following pressure levels
are possible for the differential pressure unit:
Fig. 6: Pressure ratings encodings of the differential
pressure unit
1. Differential pressure unit
2. Coding burrhole
M.blue
®
O)
2