Codman HAKIM Manual Del Usuario página 19

5. Adjust the stopcock to connect the syringe to the valve assembly
(Figure A-2).
Figure A-2
6. Position the valve vertically to direct the flow of saline upward through
the assembly. This orientation aids in flushing air from the system.
7.
Using the syringe, gently flush saline through the system while
gently depressing the prechamber to purge air bubbles from the
valve assembly.
8.
Attach the distal catheter and continue to flush the system using the
syringe until saline solution exits the end of the distal catheter.
Note: An excessive flow rate (>0.75 mL/min) activates the
SIPHONGUARD Device and creates the impression that the
valve is distally occluded. In reality, flow is being diverted to the
high resistance secondary pathway.
9.
The device is now ready for SIPHONGUARD Device Functional Test or
Manometer Testing.
Note: All valves are susceptible to damage due to excessive flow rate
during testing. Take extreme care when flushing a valve as damage
can occur when excessive flow rates are used. It is recommended
to use a flow rate of no greater than 0.5 mL/min.
SIPHONGUARD Device Functional Test
Note: This procedure applies only to valves with an integrated
SIPHONGUARD Device.
Note: Perform this procedure immediately after completing the flushing
procedure. This procedure is designed to provide visual confirmation of
proper functioning of the SIPHONGUARD Device.
1.
Use a full syringe of saline solution attached to the 4-way stopcock to
fill the manometer to the top.
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.
10
Valve