A system for a neurostimulator coupled to electrodes, and a method of providing therapy to a patient using the electrodes implanted within the patient. A target multipole relative to the electrodes is defined. The target multipole is emulated by defining an initial electrical current distribution for the electrodes, such that a first set of active electrodes respectively has electrical current values of a first polarity. Each of the electrical current values of the first polarity is compared to a first threshold value, and at least one of the electrodes in the first active electrode set is zeroed-out based on the comparison. The electrical current value of each of the zeroed-out electrode(s) is redistributed to remaining ones of the electrodes to define a new electrical current distribution for the electrodes. Electrical current is conveyed to the electrodes in accordance with the new electrical current distribution, thereby providing the therapy.

Devices and methods for providing neurostimulation to a patient, particularly in trial systems assessing suitability of a permanently implanted neurostimulation. Such trial systems can utilize a trial neurostimulation lead that includes a coiled conductor coupled to a proximal contact connector that is coupled with an external pulse generator. The trial neurostimulation lead can be a coiled conductor of a closed wound configuration that can be stretched to form an open coil portion or gaps between adjacent coils to provide more resistance to migration or regression of the lead.

A neuromodulation device generates a therapeutic neuromodulation field to produce a therapeutic effect in therapy-targeted neural tissue, and a priming field to produce a priming effect in priming-targeted neural tissue. The priming effect causes a change in sensitization of the priming-targeted neural tissue to the therapeutic neuromodulation field. The priming field is generated concurrently during generation of the therapeutic neuromodulation field to increase efficacy of the therapeutic effect.

A neuromodulation device is configured with a set of testing program configuration instructions including therapeutic neuromodulation field-setting parameters. The device determines a custom priming program in response to the testing program configuration instructions. The custom priming program controls the neuromodulation device to generate a priming field with specific correspondence to the therapeutic neuromodulation field to be produced by the testing program.

Selective high-frequency spinal chord modulation for inhibiting pain with reduced side affects and associated systems and methods are disclosed. In particular embodiments, high-frequency modulation in the range of from about 1.5 KHz to about 50 KHz may be applied to the patient's spinal chord region to address low back pain without creating unwanted sensory and/or motor side affects. In other embodiments, modulation in accordance with similar parameters can be applied to other spinal or peripheral locations to address other indications.

The present invention refers to a spinal cord stimulation system for spinal cord stimulation (SCS) which comprises: a) An electrode (1), consisting essentially of a plurality of poles (2), configured to be inserted inside the intradural space (3) through the dura mater (4) via needle-puncture (5) of the skin; b) an unit (6), connected to the electrode, suitable for generating electric current and reading the impedance; and c) a computer comprising a processing unit (10).

An improved external trial stimulator provides neurostimulation functionality for implanted medical electrodes prior to implantation of an implantable neurostimulator. The external trial stimulator is housed in a four-part housing that provides mechanical and electrostatic discharge protection for the electronics mounted in a central frame of the housing. Connectors attached to leads from the electrodes connect to contacts that are recessed in the housing through ports that are centered for easy access. Multiple indicators provide information to users of the external trial stimulator.

A method or system for generating a clinical effects map for electrical stimulation includes receiving stimulation parameters and at least one clinical response for each of a plurality of stimulation instances; for each of the stimulation instances, determining a radius of a stimulation field according to the stimulation parameters for the stimulation instance; generating the clinical effects map using the at least one clinical response and the stimulation parameters for each of the stimulation instances, wherein, for each of the stimulation instances, the at least one clinical response for the stimulation instance is assigned to the radius of the stimulation field determined for the stimulation instance; and displaying the clinical effects map.

Cochlear implant systems can include a cochlear electrode, a stimulator in electrical communication with the cochlear electrode, a sensor configured to receive a stimulus signal and generate an input signal based on the received stimulus signal, and a signal processor in communication with the stimulator and the sensor. The signal processor can include an analog filtering stage configured to generate an analog filtered signal from a received input signal and a digital filtering stage configured to generate a digitally filtered signal from the analog filtered signal. The analog filtering stage and digital filtering stage can be used to normalize the frequency response of the digitally filtered signal with respect to the stimulus signal.

An introducing device for locating a tissue region and deploying an electrode is shown and described. The introducing device may include an outer sheath. An inner sheath may be disposed within the outer sheath. The inner sheath may be configured to engage an implantable electrode. In an example, the inner sheath may comprise a stimulation probe having an uninsulated portion at or near a distal end of the delivery sheath. The outer sheath may be coupled to a power source or stimulation signal generating circuitry at a proximal end. A clinician may control application of the stimulation signal to a tissue region via the outer sheath.