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

GB | 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 designated 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 pres-
sure level can be read off using the orienta-
tion of this intermediate space (fig. 4). The tri-
angle apex can take up any position except
the space labelled as a non-adjustable area
in fig. 4. This means that the opening pres-
sure of M.blue can be variably adjusted from
0 up to 40 cm H O. In order not to read off
2
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).
18
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
Fig. 5: X-ray image (adjustable gravitational unit preset
to 20 cmH 2 O; differential pressure unit: 5 cmH 2 O)
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: