Controlling Stimulation Amplitude
22
Controlling Stimulation Amplitude
The stimulation bar
(
①
)
controls the stimulation amplitude
during test stimulation for lead placement and Neurostimulator
programming. When available, the stimulation bar is on the right
side of the CP screen. The stimulation bar includes:
②
A digital display of the stimulation amplitude level.
•
When stimulation is
OFF
, this display shows in grey the
desired, or programmed, stimulation amplitude.
•
When stimulation is
ON
, this display shows in blue the
output, or delivered, stimulation
amplitude.
Note:
For extreme stimulation settings (including high amplitude, pulse
width, and/or rate) and impedance values (e.g., high impedance values)
the output stimulation amplitude that is delivered to the patient may be
less than the programmed stimulation amplitude. Increasing the pulse
width in this situation may provide sufficient charge delivery to obtain the
desired stimulation response. Refer to the table at the end of this section
for a summary of maximum achievable stimulation amplitudes under
different stimulation conditions. Axonics recommends testing alternative
electrode configurations – particularly those with lower impedances if
available – to attempt to reduce the stimulation output required to obtain
the desired stimulation response.
③
Up arrow and down arrow buttons to increase and
decrease stimulation amplitude incrementally.
•
By default, the amplitude changes in 0.05mA increments if the amplitude is <1.30mA. At
amplitudes above
1.30mA, the default
incremental change is 0.10mA.
•
In the
CP Settings
screen, the increment of amplitude change can be changed from the default to a fixed
increment of 0.05mA or 0.10mA.
•
Incremental stimulation amplitude changes can be made when stimulation is off or on.
