Codman Hakim Bedienungsanleitung Seite 18

2. Turn the stopcock to connect the manometer to the Codman Hakim
Valve and SiphonGuard Device (Figure A-3)
Figure A-3
Note: Attach the distal catheter at this time, flushed free of air
bubbles
3. Bring the end of the distal catheter level with the fluid level in the
manometer (Figure A-4)
Note: The Codman Hakim Valves with SiphonGuard Device must lie
on a sterile surface and remain undisturbed for the duration of the
test
Figure A-4
4.
Hold the catheter distal tip adjacent to the manometer and slowly
lower the end of the distal catheter until the fluid level in the
manometer begins to drop
5. Continue to lower the catheter tip at a rate that exceeds the drop
rate of the fluid level in the manometer As you do so, you will note
a corresponding increase in the rate of descent of the fluid level in the
manometer
6.
A point will be reached where the rate of descent of the fluid level in
the manometer dramatically decreases, but does NOT stop This is the
point at which the SiphonGuard Device primary pathway closes and
flow diverts to the higher resistance secondary pathway This confirms
proper functioning of the SiphonGuard Device
7. Repeat Steps 3 through 6 as necessary to reconfirm SiphonGuard
Device function
8.
Remove the distal catheter for manometer testing of the valve
Manometer Test
Note: Performing a manometer test is not recommended as this test
is susceptible to environmental factors and yields a result that is not
physiologic in nature and for which manufacturers do not specify
performance ranges
Note: Perform this test only on devices that have been prepared according
to Steps 1 through 7 in Flushing Procedure.
Equipment required (use all sterile equipment, perform testing under
sterile conditions)
One manometer, wide-bore (e g 3 5 mm), graduated in mm (available in
lengths from 38 to 60 cm)
One 4-way stopcock
One syringe, 5 cc
One syringe filter, 5 µm
Tubing adapters
Silicone tubing
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