DePuy Synthes Codman Neuro CERTAS Plus Manual Del Usario página 43

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
Flushing Procedure
Note: At a rate of 0.5 mL/minute, unitized versions
require 2–3 minutes to complete flushing. This is the
time required for fluid to fill the valve and exit the distal
catheter. Allot additional time to ensure the system is
free of air bubbles.
1. Fill syringe with sterile saline using the 5 µm syringe
2. Assemble manometer, stopcock, syringe, and tubing
3. Adjust the valve setting to 1 while the valve remains in
4. Remove valve from the sterile package, and connect
5. Adjust the stopcock to connect the syringe to the
6. Position the valve vertically with the outlet
7. Using the syringe, gently flush saline through the
8. Attach a distal catheter to the valve and gently flush
9. The device is now ready for SIPHONGUARD Device
SIPHONGUARD Device Test Procedure
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.
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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).
its sterile package.
the valve to the manometer/syringe assembly.
valve assembly (Figure A-2).
pointed downward.
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.
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.
saline through the system to ensure that the catheter
is purged of air.
Test Procedure 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.
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