Manometer Testing; Equipment Setup - DePuy Synthes Codman Neuro CERTAS Plus Manual Del Usario

1. Use a full syringe of saline solution attached to the
2. Turn the stopcock to connect the manometer to the
3. Bring the end of the distal catheter level with the fluid
4. Hold the distal end of the catheter adjacent to the
5. Continue to lower the end of the catheter at a
6. A point will be reached where the rate of descent
7. Repeat Steps 3 through 6 as necessary to reconfirm

Manometer Testing

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.
Equipment Required (use all sterile equipment, perform
testing under sterile conditions)
One sterile manometer, wide-bore (e.g. 3.5 mm),
graduated in mm (available in lengths from 38 to 60 cm)
One sterile 4-way stopcock
One sterile syringe, 10mL minimum is recommended
One sterile syringe filter, 5 µm
Sterile tubing adapters
Sterile silicone tubing
One sterile male luer connector with 1/16 in. (1.6 mm) barb
Sterile saline solution
Sterile fluid reservoir or water bath

Equipment Setup

1. Fill syringe with sterile saline using the 5 µm syringe
2. Assemble manometer, stopcock, syringe, and tubing
3. Place the end of the tubing leading from the stopcock
4. Adjust the manometer height so that the zero level of
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4-way stopcock to fill the manometer to the top.
valve and SIPHONGUARD Device (Figure A-3).
level in the manometer (Figure A-4).
Note: The device must lie on a sterile surface and
remain undisturbed for the duration of the test.
manometer and slowly lower the end of the catheter
until the fluid level in the manometer begins to drop.
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.
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.
SIPHONGUARD Device function.
filter. The syringe filter should not be reused in any
subsequent refilling of the syringe. Once the syringe
has been filled, remove the filter from the syringe.
(Figure A-1).
into the water bath. Position the tubing so that the
end does not come into contact with the sides of
the bath.
the manometer and the fluid level in the water bath
are at the same level (Figure A-5).
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