Abstract: A therapeutic neurostimulation system configured for providing therapy to a patient. The neurostimulation system comprises a neurostimulation lead having an array of electrodes arranged along a longitudinal axis configured for being implanted along a spinal cord of a patient, a neurostimulation device configured for delivering electrical stimulation energy to active ones of the electrode array, and control/processing circuitry for instructing the neurostimulation device to configure an active electrode as a cathode, and two active electrodes longitudinally flanking and laterally offset from the cathode as anodes, selecting a ratio of stimulation amplitude values for the two anodes based on a known longitudinal location of the implanted neurostimulation lead relative to the spinal cord, and instructing the neurostimulation device to distribute the electrical stimulation energy between the two anodes in accordance with the selected stimulation amplitude value ratio.

Abstract: A therapeutic neurostimulation system configured for providing therapy to a patient. The neurostimulation system comprises a neurostimulation lead having an array of electrodes arranged along a longitudinal axis configured for being implanted along a spinal cord of a patient, a neurostimulation device configured for delivering electrical stimulation energy to active ones of the electrode array, and control/processing circuitry for instructing the neurostimulation device to configure an active electrode as a cathode, and two active electrodes longitudinally flanking and laterally offset from the cathode as anodes, selecting a ratio of stimulation amplitude values for the two anodes based on a known longitudinal location of the implanted neurostimulation lead relative to the spinal cord, and instructing the neurostimulation device to distribute the electrical stimulation energy between the two anodes in accordance with the selected stimulation amplitude value ratio.

Abstract: A therapeutic neurostimulation system configured for providing therapy to a patient. The neurostimulation system comprises a neurostimulation lead having an array of electrodes arranged along a longitudinal axis configured for being implanted along a spinal cord of a patient, a neurostimulation device configured for delivering electrical stimulation energy to active ones of the electrode array, and control/processing circuitry for instructing the neurostimulation device to configure an active electrode as a cathode, and two active electrodes longitudinally flanking and laterally offset from the cathode as anodes, selecting a ratio of stimulation amplitude values for the two anodes based on a known longitudinal location of the implanted neurostimulation lead relative to the spinal cord, and instructing the neurostimulation device to distribute the electrical stimulation energy between the two anodes in accordance with the selected stimulation amplitude value ratio.

Abstract: A method of delivering electrical stimulation energy includes receiving stimulation parameters such as a selection of one or more electrodes, a stimulation amplitude, and a stimulation frequency. The stimulation parameters define, at least in part, an electrical stimulation energy deliverable as a series of electrical pulses at the stimulation frequency. The method also includes receiving a duty cycle parameter that indicates a relative number of the electrical pulses to be suppressed; and delivering the electrical stimulation energy to patient tissue through the stimulation lead. A percentage of the electrical pulses are suppressed according to the duty cycle parameter. Optionally, a distribution parameter is received that indicates how suppressed electrical pulses are to be distributed among the electrical pulses. Optionally, a suppression level parameter is received that indicates a reduction of the stimulation amplitude for each electrical pulse that is to be suppressed.

Abstract: A therapeutic neurostimulation system configured for providing therapy to a patient. The neurostimulation system comprises a neurostimulation lead having an array of electrodes arranged along a longitudinal axis configured for being implanted along a spinal cord of a patient, a neurostimulation device configured for delivering electrical stimulation energy to active ones of the electrode array, and control/processing circuitry for instructing the neurostimulation device to configure an active electrode as a cathode, and two active electrodes longitudinally flanking and laterally offset from the cathode as anodes, selecting a ratio of stimulation amplitude values for the two anodes based on a known longitudinal location of the implanted neurostimulation lead relative to the spinal cord, and instructing the neurostimulation device to distribute the electrical stimulation energy between the two anodes in accordance with the selected stimulation amplitude value ratio.

Abstract: A therapeutic neurostimulation system configured for providing therapy to a patient. The neurostimulation system comprises a neurostimulation lead having an array of electrodes arranged along a longitudinal axis configured for being implanted along a spinal cord of a patient, a neurostimulation device configured for delivering electrical stimulation energy to active ones of the electrode array, and control/processing circuitry for instructing the neurostimulation device to configure an active electrode as a cathode, and two active electrodes longitudinally flanking and laterally offset from the cathode as anodes, selecting a ratio of stimulation amplitude values for the two anodes based on a known longitudinal location of the implanted neurostimulation lead relative to the spinal cord, and instructing the neurostimulation device to distribute the electrical stimulation energy between the two anodes in accordance with the selected stimulation amplitude value ratio.

Abstract: A method of stimulating a portion of a spinal cord of a patient includes identifying an arrangement of electrodes including a relative placement of each electrode within the arrangement; identifying a vertebral level for implantation of the arrangement and a position of the arrangement with respect to the spinal cord; determining by calculation, for a selection of at least one cathode from the electrodes, at least two anode guard electrodes from the electrodes including in the calculation an estimated thickness of cerebrospinal fluid at the vertebral level; and stimulating the portion of the spinal cord of the patient at the vertebral level using the at least one cathode and the at least two anode guard electrodes.

Abstract: A method of delivering electrical stimulation energy includes receiving stimulation parameters such as a selection of one or more electrodes, a stimulation amplitude, and a stimulation frequency. The stimulation parameters define, at least in part, an electrical stimulation energy deliverable as a series of electrical pulses at the stimulation frequency. The method also includes receiving a duty cycle parameter that indicates a relative number of the electrical pulses to be suppressed; and delivering the electrical stimulation energy to patient tissue through the stimulation lead. A percentage of the electrical pulses are suppressed according to the duty cycle parameter. Optionally, a distribution parameter is received that indicates how suppressed electrical pulses are to be distributed among the electrical pulses. Optionally, a suppression level parameter is received that indicates a reduction of the stimulation amplitude for each electrical pulse that is to be suppressed.

Abstract: A therapeutic neurostimulation system configured for providing therapy to a patient. The neurostimulation system comprises a neurostimulation lead having an array of electrodes arranged along a longitudinal axis configured for being implanted along a spinal cord of a patient, a neurostimulation device configured for delivering electrical stimulation energy to active ones of the electrode array, and control/processing circuitry for instructing the neurostimulation device to configure an active electrode as a cathode, and two active electrodes longitudinally flanking and laterally offset from the cathode as anodes, selecting a ratio of stimulation amplitude values for the two anodes based on a known longitudinal location of the implanted neurostimulation lead relative to the spinal cord, and instructing the neurostimulation device to distribute the electrical stimulation energy between the two anodes in accordance with the selected stimulation amplitude value ratio.

Abstract: A method of stimulating a portion of a spinal cord of a patient includes identifying an arrangement of electrodes including a relative placement of each electrode within the arrangement: identifying a vertebral level for implantation of the arrangement and a position of the arrangement with respect to the spinal cord: determining by calculation, for a selection of at least one cathode from the electrodes, at least two anode guard electrodes from the electrodes including in the calculation an estimated thickness of cerebrospinal fluid at the vertebral level; and stimulating the portion of the spinal cord of the patient at the vertebral level using the at least one cathode and the at least two anode guard electrodes.

Abstract: A medical system configured for performing a medical function in a patient comprises a medical lead configured for being implanted adjacent a tissue region of the patient, and an electrode configured for being implanted adjacent the tissue region. The medical system further comprises analog output circuitry configured for delivering one or more electrical signals having a plurality of different sinusoidal frequency components to the tissue region via the electrode, monitoring circuitry configured for measuring a plurality of different frequency-dependent or other basis function electrical parameter values in response to the delivery of the one or more electrical signals to the tissue region, and at least one controller/processor configured for analyzing the different electrical parameter values, and performing a function based on the different analyzed electrical parameter values.

Abstract: A control module for an electrical stimulation system includes a connector assembly coupled to a sealed housing. A lead-assembly port is defined along a first end of the connector assembly and extends into the connector assembly. The lead-assembly port is configured for receiving a lead assembly. Connector contacts are disposed in the lead-assembly port and are electrically-coupled to an electronic subassembly disposed in the sealed housing. The connector contacts are configured to electrically-couple to terminals of the lead assembly when the lead assembly is received by the lead-assembly port. A stylet port is defined along a second end of the connector assembly and extends into the interior of the connector assembly. The stylet port opens to the lead-assembly port within the interior of the connector assembly to form a continuous passageway with the lead-assembly port.

Abstract: A method comprises conveying a pulsed waveform between an electrode and a stimulation site of a spinal cord, thereby evoking the antidromic propagation of action potentials along a first sensory neural fiber creating a therapeutic effect in the tissue region, evoking the orthodromic propagation of action potentials along the first sensory neural fiber potentially creating paresthesia corresponding to the tissue region, and evoking the antidromic propagation of action potentials along a second sensory neural fiber potentially creating a side-effect in another tissue region.

Abstract: A method comprises conveying a pulsed waveform between an electrode and a stimulation site of a spinal cord, thereby evoking the antidromic propagation of action potentials along a first sensory neural fiber creating a therapeutic effect in the tissue region, evoking the orthodromic propagation of action potentials along the first sensory neural fiber potentially creating paresthesia corresponding to the tissue region, and evoking the antidromic propagation of action potentials along a second sensory neural fiber potentially creating a side-effect in another tissue region.

Abstract: A method comprises conveying a pulsed waveform between an electrode and a stimulation site of a spinal cord, thereby evoking the antidromic propagation of action potentials along a first sensory neural fiber creating a therapeutic effect in the tissue region, evoking the orthodromic propagation of action potentials along the first sensory neural fiber potentially creating paresthesia corresponding to the tissue region, and evoking the antidromic propagation of action potentials along a second sensory neural fiber potentially creating a side-effect in another tissue region.

Abstract: A method comprises conveying a pulsed waveform between an electrode and a stimulation site of a spinal cord, thereby evoking the antidromic propagation of action potentials along a first sensory neural fiber creating a therapeutic effect in the tissue region, evoking the orthodromic propagation of action potentials along the first sensory neural fiber potentially creating paresthesia corresponding to the tissue region, and evoking the antidromic propagation of action potentials along a second sensory neural fiber potentially creating a side-effect in another tissue region.