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Issue
Rolling plot lacks data
points and appears
'lumpy'.
Software freezes or has
very slow response.
Patient cannot raise
stimulation to their
desired level using the
EPC.
Patient or
Programming clinician
cannot raise
stimulation above zero
with the EPC.
Patient reports high
variability in
stimulation.
Contact Clinician
Indicator Light is on
either Charger or EPC.
Interface connection
error.
CLIN-UMAN-002424
Document Reference:
Evoke™ Clinical Manual
Possible Explanation
Telemetry may be disrupted.
System may be busy.
Telemetry may be disrupted.
Other applications open.
Max. Stimulation Current
may be too low.
FBV Target Limit may be too
low.
Stimulator may be in Safe
Mode.
Stimulator may be reaching
voltage compliance limit (See
"Out of Compliance").
Stimulator may have
Electrode Disconnected error
(See "Electrode
Disconnected").
EPC may not be
communicating with the
stimulator.
Stimulator needs device
check and possible
reprogramming.
Interrogate with the CI/CPA
to confirm FC enabled mode,
noting any error messages.
Patient is moving whilst
charging the CLS or eCLS
Stimulator is in Safe Mode.
CST is not plugged in.
Revision: 12.00
Corrective Action
Move CST closer to device. Ensure no
EMI from other devices.
Wait for condition to clear or re-start
software. Close other applications that
are running.
Move CST closer to device. Ensure no
EMI from other devices.
Re-start software. Close other
applications that are running.
Raise Max. Stimulation Current.
Raise FBV Target Limit.
Perform 'Soft Reset and Reconnect'.
See "Out of Compliance".
See "Electrode Disconnected".
If an eCLS
Check lead adapter, extension and eCLS
connections.
Perform an impedance check to ensure
all connections are ok.
If a CLS
Perform an impedance check to ensure
all connections are ok.
Check that the audio indicators are
enabled and if 3 beeps are heard bring
the EPC closer to the stimulator and try
again.
Reprogram the stimulator and test new
settings (refer to Section 7).
The CLS will only operate in FC disabled
mode while the device is being charged.
Stimulation should be turned off or the
patient should not move too much if the
stimulation strength variation is
unpleasant.
Note down the error on the screen.
Perform 'Soft Reset and Reconnect'.
Plug CST into USB port.
Page 46 of 56
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