Abstract: A computing system for programming a stimulation waveform for delivery by an electrical stimulation system is disclosed. The computing system includes a user interface comprising a waveform editor configured to enable user-defined editing of one or more wavelets derived from a mother wavelet to generate a wavelet pulse. The wavelet pulse defines a morphology of the stimulation waveform. The computing system further includes a communication interface configured to transmit the wavelet pulse to a pulse generator of the electrical stimulation system configured to electrically modulate electrically-activatable tissue according to the wavelet pulse.

Abstract: A computing system for programming stimulation parameters of a neuromodulation system is disclosed. The computing system includes a graphical user interface configured to display a multidimensional parameter space, wherein each axis of the parameter space corresponds to a respective stimulation parameter associated with stimulation pulses deliverable by the neuromodulation system, and render a target within the multidimensional parameter space, the target representing a set of stimulation parameters corresponding to coordinates along two or more axes of the multidimensional parameter space. The system further includes one or more user-operable controls configured to enable movement of the target within the multidimensional parameter space. Movement of the target within the multidimensional parameter space causes simultaneous adjustment of the stimulation parameters associated with the neuromodulation system along the two or more axes based on a position of the target in the multidimensional parameter space.

Abstract: Monitoring circuitry for an implantable stimulator device is disclosed. A switching matrix allows current from a current source to be distributed to any of a plurality of electrodes. A voltage drop across the active switches in the switch matrix is monitored and is compared to an expected voltage based upon the amplitude of the current and the known on resistance of the switch. If the monitored and expected voltages differ significantly, then a failure condition can be inferred, and an appropriate action can be taken, such shutting down stimulation. Using the already-existing switches in the switching matrix in this fashion is beneficial because it allows the current through the electrodes to be monitored without providing additional structures in the therapeutic current path, which would increase complexity and add unwanted resistance.

Abstract: Monitoring circuitry for an implantable stimulator device is disclosed. A switching matrix allows current from a current source to be distributed to any of a plurality of electrodes. A voltage drop across the active switches in the switch matrix is monitored and is compared to an expected voltage based upon the amplitude of the current and the known on resistance of the switch. If the monitored and expected voltages differ significantly, then a failure condition can be inferred, and an appropriate action can be taken, such shutting down stimulation. Using the already-existing switches in the switching matrix in this fashion is beneficial because it allows the current through the electrodes to be monitored without providing additional structures in the therapeutic current path, which would increase complexity and add unwanted resistance.

Abstract: Monitoring circuitry for an implantable stimulator device is disclosed. A switching matrix allows current from a current source to be distributed to any of a plurality of electrodes. A voltage drop across the active switches in the switch matrix is monitored and is compared to an expected voltage based upon the amplitude of the current and the known on resistance of the switch. If the monitored and expected voltages differ significantly, then a failure condition can be inferred, and an appropriate action can be taken, such shutting down stimulation. Using the already-existing switches in the switching matrix in this fashion is beneficial because it allows the current through the electrodes to be monitored without providing additional structures in the therapeutic current path, which would increase complexity and add unwanted resistance.

Abstract: A method for implanting a lead within brain tissue of a patient, wherein the lead comprises a set of radially segmented electrodes on a distal end of the lead is provided. The method includes performing a plurality of microelectrode recordings through a respective plurality of recording tracts in the brain tissue; based on the microelectrode recordings, creating a three-dimensional map of a brain structure; positioning a graphical representation of the radially segmented electrodes over the map of the brain structure to create a graphical depiction of a desired depth and a desired radial orientation of the lead within the brain tissue; and implanting the lead in the brain tissue in accordance with the desired depth and desired radial orientation. A device for determining a radial orientation of the lead includes a radially directional ruler and an indicator for indicating which electrode is in contact with the ruler.