Section D: Troubleshooting - Codman Neuro CERTAS Plus Manual De Instrucciones De Uso

7. Insert the Adjustment Tool into the Locator Tool so
8. Remove the Adjustment Tool from the Locator
9. Repeat Steps 7 and 8 to confirm successful
10. If the desired performance setting is not achieved,
11. It is recommended to record the valve setting in the
12. Disinfect the tool kit components (See Disinfecting
13. Return all tools to their proper locations in the

SECTION D: Troubleshooting

If valve function is adversely affected by accumulations
of biological matter, it might be possible to dislodge the
material and restore proper function through one of the
following methods:
• flushing and/or pressing the valve (only for those
• multiple attempts to adjust the setting
If there is difficulty in indicating and/or adjusting the
valve setting:
206521-001-H-INS.indd 16
that the arrow is pointing to the current performance
setting. With one hand holding the "petals" of the
Locator Tool, turn the Adjustment Tool with the
other hand until the arrow points to the desired
performance setting (Figure 12). The Adjustment Tool
will provide an audible click and a tactile response as
you turn to each setting.
CAUTION: Failure to accurately position the
Locator Tool could result in an inability to adjust
the performance setting. The Locator Tool must be
precisely aligned with both the valve's direction of
flow and the center of the hard valve mechanism
for an accurate adjustment. Alignment can be more
challenging if tissue thickness is >10 mm above the
valve. In these instances, verify the valve position
and orientation with x-ray or fluoroscopy. Refer
to SECTION D: Troubleshooting and SECTION E:
Confirming the Current Valve Setting.
Note: The Adjustment Tool is equipped with a
mechanical stop between Settings 1 and 8. This is to
prevent inadvertent adjustment between the extremes
of the available settings.
Note: Successful adjustment is accomplished by
starting at the valve's current setting and moving
directly to the desired setting.
Tool by lifting it straight upwards a minimum of 3 cm
(1.25 in.) before moving it horizontally away from the
Locator Tool in order to avoid inadvertently changing
the valve setting.
adjustment of the performance setting. Always
confirm the desired performance setting of the valve.
repeat Steps 7 through 9.
patient's record and I.D. wallet card (available from
local Codman sales representative).
the CODMAN CERTAS Tool Kit).
storage case to prevent damage.
Note: place the Low Profile Locator Tool under the
elastic webbing in the bottom of the storage case
and fully collapse the Adjustable Height Locator
Tool (See Figure 2B).
valves without the SIPHONGUARD feature)
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