Vercise™ Neural Navigator 4 Programming Manual
Programming the Stimulator
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The following steps can be used to refine the applied directional preset or selected directional segment.
5. Use the
and
buttons to rotate and steer the stimulation focus circumferentially around the Lead. Each rotation is
30 degrees.
6. Use the
and
buttons to radially spread or shrink the focus of the stimulation field.
7. To choose another starting point or to steer on another Contact, select another Contact. To select a segmented Directional Contact,
select the Level, then select one of the three labeled segmented Contacts around the circumference of the center button on the
Directional Contact Selector.
Note:
The total Amplitude for the selected Area will drop to 0 mA when another Contact is selected.
Note:
Stimulation using multiple independent current control and the Directional Lead is referred to as Cartesia 3D.
Custom Mode
Custom Mode allows you to assign a percentage of anodic or cathodic current to individual Contacts and the Stimulator Case.
To program in Custom Mode:
1.
Select
Custom Mode.
2. Select the Stimulator Case or Contact that you want to adjust. If it was selected, one tap will assign it as an anode (+). Another tap will
reassign it as a cathode (‑). Another tap will reassign it as OFF (blank). Tapping on a Contact will first select it without changing the
polarity.
Note:
Changing the Contact polarities will reset the Amplitude to zero.
3.
Select the
+
and
–
buttons for the Contact to adjust the percentage of anodic or cathodic current assigned to the selected Contact.
Note:
When using the External Trial Stimulator (ETS), monopolar configurations are not possible since the ETS “case” cannot be
assigned as a cathode or anode.
Note:
When using the ETS, Clinical Effects data is recorded but not plotted on the CEM.
Turning Stimulation OFF for Individual Areas
To turn stimulation OFF for Individual Areas:
1. Make sure the Area you wish to turn OFF is selected by clicking on the appropriate Area on the Area Panel.
2. Press the Stimulation OFF button to turn Stimulation OFF.
Note:
When the Amplitude is at 0 mA, increase the Amplitude to turn ON stimulation.
Turning All Stimulation OFF
Selecting the
button will stop stimulation for all active Areas. This function is only meant for turning all Stimulation OFF. To turn Stimulation
ON, select each Area that you want to turn ON and select the Stimulation ON/OFF switch.
Increasing and Decreasing the Amplitude
Amplitude is measured in milliamperes (mA). The default setting for Amplitude is 0 mA and the range is 0 to 20 mA. The maximum Amplitude for
a single Contact is 12.7 mA.
To increase or decrease the Amplitude:
1. Use the + and – buttons labeled Total Amplitude to increase or decrease Amplitude.
2. The default step size for Amplitude changes is 0.1 mA. You can change the step size to 0.5 mA using the Step Size buttons.
Note:
High stimulation levels can cause permanent tissue damage. A message will pop‑up notifying you if you attempt to exceed a
stimulation limit and settings that exceed this limit are not allowed.