Equipment Setup; Test Procedure - Codman CERTAS Plus Manual Del Usario

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
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.
2. Assemble manometer, stopcock, syringe, and tubing
(Figure A-1).
3. Place the end of the tubing leading from the stopcock
into the water bath. Position the tubing so that the
end does not come into contact with the sides of
the bath.
4. Adjust the manometer height so that the zero level of
the manometer and the fluid level in the water bath
are at the same level (Figure A-5).
5. Adjust the stopcock to connect the syringe to the
tubing in the water bath (Figure A-2).
6. Using the syringe, flush the stopcock and tubing with
sterile fluid to purge the system of air.
7. Turn the stopcock to connect the fluid pathway from
the syringe to the manometer (Figure A-6).
8. Using the syringe, fill the manometer to a minimum of
10 cmH
2
Zeroing the Manometer
1. After filling the manometer, turn the stopcock to
connect the manometer with the bath (Figure A-7).
2. Allow the water column in the manometer to fall.
The water column should stop at the zero level of the
manometer (Figure A-8).
3. If necessary, adjust the height of the manometer to
bring the water level in the manometer to the same
level as the fluid in the water bath.

Test Procedure

1. Adjust the valve to desired setting while the valve
remains in its sterile package.
2. Remove valve from the sterile package, and connect
the valve to the manometer/syringe assembly using
the tubing placed in the water bath.
3. Adjust the stopcock to connect the syringe to the
valve assembly (Figure A-2 above).
4. Position the valve vertically with the outlet
pointed downward.
5. Using the syringe, gently flush saline through the
system while gently pressing the reservoir to purge air
bubbles from the valve assembly. Once fluid begins
flowing through the valve mechanism, the outlet of
the valve can be pointed upward to further assist in
evacuating air from the system.
O.
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