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.

Increasing and Decreasing the Pulse Width

The Pulse Width of the stimulation is the length of time a burst of energy is applied per pulse. The Pulse Width is measured in microseconds (μS). The default setting

for Pulse Width is 60 μS and the range is 20 to 450 μS.

To increase or decrease the Pulse Width:

1. Select the Pulse Width button.

2. Select the desired Pulse Width from the options provided.

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.

Note: Increasing the Pulse Width by more than 10 microseconds (μS) at a time will cause the total Amplitude to be reset to 0 mA.

Increasing and Decreasing the Rate

The pulse rate of the stimulation, often called the Rate or the Frequency, dictates how many stimulation pulses are delivered in a second, measured in Hertz (Hz) or

pulses per second (pps). The default setting for Rate is 130 Hz and the range is 2 to 255 Hz.

To increase or decrease the Rate:

1. Select the Rate button.

2. Select the desired Rate from the table of available Rates. Incompatible Rates are greyed out.

Note: Areas that are assigned to the same Lead Port cannot have Rates that sum up to greater than 255 Hz.

Programming Multiple Areas with Different Rates

The Vercise PC and Vercise Gevia DBS Systems allow Areas to be programmed with different Rates. By default, the Multiple Rate option is disabled. When you

enable Multiple Rates, only the Rates that are compatible with the Rates and Pulse Widths from the other active Areas are available.

Note: Modifying the Rate of an Area will alter the available Rates for the other Areas.

Note: If you disable Multiple Rates, the Rate for all Areas with be reset to the Rate selected for the current Area.

Selecting Patient Amplitude Range

By default, patients do not have the ability to adjust the Amplitude of their stimulation.

However, in some cases, you may want to give a patient the ability to adjust the Amplitude of their stimulation using the Remote Control. To give patients Amplitude

Control, first turn ON the Patient Amplitude Control in the Configure Tab. Once the Patient Amplitude Control is turned ON, you can set the allowable Amplitude

range in the Program Tab for each Area by setting a Minimum and Maximum.

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.

Programming the Stimulator

Vercise™ Neural Navigator 3 Programming Manual

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