Define Tined Lead Thresholds
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Define Tined Lead Thresholds
After the initial placement of the tined lead, the CP is
used to deliver test stimulation to characterize the
placement of the tined lead. This section explains how
the CP is used to test and record the responses and
response thresholds for stimulation with each electrode
of the tined lead.
Upon entering the
Define Thresholds
screen, the most
proximal electrode (E3) is selected by default. A different
electrode can be selected by pressing that electrode on
the CP screen. A gray box is visible around each
electrode until stimulation is delivered with the selected
electrode (
①
). The box changes color depending on the
stimulation amplitude and the motor and sensory
responses evoked. When stimulation is at the minimum
amplitude that evokes the desired physiological
response (motor and/or sensory), the color around the
electrode indicates the quality of that electrode:
•
Grey (unassigned): Stimulation level is zero
•
Green (“good”): Stimulation level between 0 and
3 mA. Placement is acceptable.
•
Yellow (“okay”): Stimulation level between 3
and 4 mA. Axonics recommends adjusting the
lead placement.
•
Red (“not recommended”): Stimulation level
between 4 and 12.5 mA. Axonics strongly
recommends adjusting the lead placement.
The threshold value of the selected electrode is updated
each time a new test stimulation occurs.
