Patents by Inventor Steven Boor

Steven Boor has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250073459
    Abstract: A system and method for measuring, monitoring and mitigating EMI interference in an implanted stimulation lead system associated with an IPG. A Kelvin connection scheme operative with a diagnostic circuit is provided for sensing an interference voltage induced at a Kelvin connect electrode of the lead system, wherein the diagnostic circuit is configured to generate one or more control signals for adjusting in substantially real time a common-mode voltage reference provided to supply a biasing voltage to the IPG circuitry.
    Type: Application
    Filed: November 18, 2024
    Publication date: March 6, 2025
    Inventors: Steven Boor, Daran DeShazo
  • Patent number: 12144984
    Abstract: A system and method for measuring, monitoring and mitigating EMI interference in an implanted stimulation lead system associated with an IPG. A Kelvin connection scheme operative with a diagnostic circuit is provided for sensing an interference voltage induced at a Kelvin connect electrode of the lead system, wherein the diagnostic circuit is configured to generate one or more control signals for adjusting in substantially real time a common-mode voltage reference provided to supply a biasing voltage to the IPG circuitry.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: November 19, 2024
    Assignee: Advanced Neuromodulation Systems, Inc.
    Inventors: Steven Boor, Daran DeShazo
  • Publication number: 20240216695
    Abstract: An implantable medical device (IMD) includes multiple stimulation engines for independently stimulating respective electrode sets of a lead system while avoiding collisions and/or channel contention during stimulation delivery. A first voltage multiplier is configured to generate an adjustable target voltage having sufficient headroom at an output node that is commonly coupled to anodic nodes of respective stimulation engines. Each stimulation engine includes a secondary voltage multiplier to drive the respective anode and a current regulator powered by a floating voltage supply, wherein the current regulator is coupled to a cathodic node and configured to control how much stimulation current is pulled from the patient tissue.
    Type: Application
    Filed: March 19, 2024
    Publication date: July 4, 2024
    Inventors: Daran DeShazo, Steven Boor
  • Publication number: 20240217810
    Abstract: A microelectromechanical systems (MEMS) sensor, a capacitive MEMS motor sensing circuit and a method are provided. The present application provides a microelectromechanical systems (MEMS) sensor. The MEMS sensor includes a housing having electrical contacts disposed on an exterior of the housing. The MEMS sensor further includes a capacitive MEMS motor disposed in the housing, and an electrical circuit disposed in the housing and being electrically coupled to the electrical contacts. The electrical circuit includes a bias voltage source having an output coupled to an input of the MEMS motor. The electrical circuit further includes a buffer circuit including an amplifier input stage having an input coupled to an output of the MEMS motor.
    Type: Application
    Filed: December 29, 2022
    Publication date: July 4, 2024
    Inventors: Michael Jennings, Steven Boor, Divya Kesharwani
  • Patent number: 11931584
    Abstract: An implantable medical device (IMD) includes multiple stimulation engines for independently stimulating respective electrode sets of a lead system while avoiding collisions and/or channel contention during stimulation delivery. A first voltage multiplier is configured to generate an adjustable target voltage having sufficient headroom at an output node that is commonly coupled to anodic nodes of respective stimulation engines. Each stimulation engine includes a secondary voltage multiplier to drive the respective anode and a current regulator powered by a floating voltage supply, wherein the current regulator is coupled to a cathodic node and configured to control how much stimulation current is pulled from the patient tissue.
    Type: Grant
    Filed: August 29, 2021
    Date of Patent: March 19, 2024
    Assignee: Advanced Neuromodulation Systems, Inc.
    Inventors: Daran DeShazo, Steven Boor
  • Publication number: 20240082580
    Abstract: A neurostimulation (NS) system and method are provided. The NS system includes an array of electrodes positioned within a patient. The array of electrodes includes an active electrode. The active electrode is configured to be a cathode electrode located proximate to neural tissue of interest that is associated with a target region. The NS system includes an anode electrode and an electromagnetic interference (EMI) antenna. A control circuit is configured to control delivery of a NS therapy during a therapy delivery interval. The NS therapy is to be delivered between the anode electrode and the active electrode. The NS system develops a residual voltage between the anode electrode and the active electrode over the therapy delivery interval. A current regulator (CR) circuit is connected to the cathode electrode. The CR circuit is configured to control current flow through the cathode electrodes.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 14, 2024
    Inventors: Steven Boor, Daran DeShazo
  • Publication number: 20240075283
    Abstract: A system and method are provided that include a power supply having positive and negative terminals. The negative terminal defines a reference ground. First and second electrodes are positioned within a patient and configured to be located proximate to tissue of interest that is associated with a target region. A control circuit is configured to control delivery of current for a therapy between the first and second electrodes. A current regulator (CR) circuit is connected to, and configured to control current flow through, at least the first electrode during delivery of the therapy under direction of the control circuit. A floating power supply is connected across power supply terminals of the CR circuit. The CR circuit and floating power supply are coupled to a floating ground node that is electrically separate from the reference ground.
    Type: Application
    Filed: November 1, 2023
    Publication date: March 7, 2024
    Inventors: Steven Boor, Daran DeShazo, Gavin L. Rade
  • Publication number: 20240017073
    Abstract: The present disclosure provides systems and methods for mitigating stimulation pulse glitches when a voltage multiplier is stepped during delivery of stimulation current to a patient. An implantable pulse generator (IPG) includes pulse generating circuitry configured to generate stimulation pulses to be applied to a patient at an output of the IPG, voltage multiplier circuitry configured to step an output voltage to an anode of the pulse generating circuitry, and glitch mitigating circuitry configured to mitigate current glitches generated when the output voltage is stepped during generation of a stimulation pulse.
    Type: Application
    Filed: July 14, 2023
    Publication date: January 18, 2024
    Inventor: Steven Boor
  • Patent number: 11857789
    Abstract: A neurostimulation (NS) system and method are provided. The NS system includes an array of electrodes positioned within a patient. The array of electrodes includes an active electrode. The active electrode is configured to be a cathode electrode located proximate to neural tissue of interest that is associated with a target region. The NS system includes an anode electrode and an electromagnetic interference (EMI) antenna. A control circuit is configured to control delivery of a NS therapy during a therapy delivery interval. The NS therapy is to be delivered between the anode electrode and the active electrode. The NS system develops a residual voltage between the anode electrode and the active electrode over the therapy delivery interval. A current regulator (CR) circuit is connected to the cathode electrode. The CR circuit is configured to control current flow through the cathode electrodes.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: January 2, 2024
    Assignee: ADVANCED NEUROMODULATION SYSTEMS, INC.
    Inventors: Steven Boor, Daran DeShazo
  • Patent number: 11839760
    Abstract: A system and method are provided that include a power supply having positive and negative terminals. The negative terminal defines a reference ground. First and second electrodes are positioned within a patient and configured to be located proximate to tissue of interest that is associated with a target region. A control circuit is configured to control delivery of current for a therapy between the first and second electrodes. A current regulator (CR) circuit is connected to, and configured to control current flow through, at least the first electrode during delivery of the therapy under direction of the control circuit. A floating power supply is connected across power supply terminals of the CR circuit. The CR circuit and floating power supply are coupled to a floating ground node that is electrically separate from the reference ground.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: December 12, 2023
    Assignee: ADVANCED NEUROMODULATION SYSTEMS, INC.
    Inventors: Steven Boor, Daran DeShazo, Gavin L Rade
  • Publication number: 20230390561
    Abstract: A system and method for measuring and monitoring charge states of one or more electrodes of an implanted stimulation lead system associated with an IPG. A Kelvin connection scheme operative with a switching circuit is provided for coupling select electrode terminals disposed in a Kelvin connection measurement loop in a switchable manner to sense and reference inputs of an analog-to-digital converter (ADC) configured as at least part of diagnostic circuitry for the IPG.
    Type: Application
    Filed: August 17, 2023
    Publication date: December 7, 2023
    Inventors: Steven Boor, Daran DeShazo
  • Patent number: 11779763
    Abstract: An implantable medical device (IMD) includes an adjustable capacitive voltage multiplier (CVM) that is responsive to diagnostic circuitry configured to provide control signals within a single stimulation current pulse for adjusting the voltage output applied to an electrode of the IMD's lead system. A control counter is coupled to the diagnostic circuitry for incrementing or decrementing an N-bit counter output signal operative to reconfigure a charge pump arrangement of the CVM so as to facilitate an adjusted voltage output.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: October 10, 2023
    Assignee: Advanced Neuromodulation Systems, Inc.
    Inventors: Daran DeShazo, Steven Boor, Gavin L. Rade
  • Patent number: 11771904
    Abstract: A system and method for measuring and monitoring charge states of one or more electrodes of an implanted stimulation lead system associated with an IPG. A Kelvin connection scheme operative with a switching circuit is provided for coupling select electrode terminals disposed in a Kelvin connection measurement loop in a switchable manner to sense and reference inputs of an analog-to-digital converter (ADC) configured as at least part of diagnostic circuitry for the IPG.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: October 3, 2023
    Assignee: Advanced Neuromodulation Systems, Inc.
    Inventors: Steven Boor, Daran DeShazo
  • Patent number: 11478644
    Abstract: The present disclosure provides systems and methods for circuitry for an implantable pulse generator (IPG) of a neurostimulation system. The circuitry includes at least one anode node, at least one cathode node, a plurality of switching circuits, each switching circuit coupled to the at least one anode node and the at least one cathode node, and a plurality of output channels, each output channel coupled between an associated switching circuit and at least one electrode. The circuitry further includes a first DC blocking capacitor coupled between the at least one anode node and the plurality of switching circuits, a second DC blocking capacitor coupled between the at least one cathode node and the plurality of switching circuits. The circuitry further includes mitigation circuitry operable to limit DC leakage from the plurality of switching circuits through the plurality of output channels.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: October 25, 2022
    Assignee: ADVANCED NEUROMODULATION SYSTEMS, INC.
    Inventors: Steven Boor, Daran DeShazo
  • Patent number: 11464981
    Abstract: The present disclosure provides systems and methods for an output architecture for an implantable pulse generator of a neurostimulation system. The output architecture includes a power supply, a plurality of outputs, a global source current regulator coupled to the power supply and operable to source current from the power supply to the plurality of outputs through a plurality of source current branches, a global sink current regulator operable to sink current from the plurality of outputs to ground through a plurality of sink current branches, a current source branch selector operable to select, for each of the plurality of outputs, an amount of current sourced from the plurality of source current branches, and a current sink branch selector operable to select, for each of the plurality of outputs, an amount of current sunk to the plurality of sink current branches.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: October 11, 2022
    Assignee: Advanced Neuromodulation Systems, Inc.
    Inventors: Daran DeShazo, Steven Boor, Gavin L. Rade
  • Publication number: 20220233850
    Abstract: A system and method are provided that include a power supply having positive and negative terminals. The negative terminal defines a reference ground. First and second electrodes are positioned within a patient and configured to be located proximate to tissue of interest that is associated with a target region. A control circuit is configured to control delivery of current for a therapy between the first and second electrodes. A current regulator (CR) circuit is connected to, and configured to control current flow through, at least the first electrode during delivery of the therapy under direction of the control circuit. A floating power supply is connected across power supply terminals of the CR circuit. The CR circuit and floating power supply are coupled to a floating ground node that is electrically separate from the reference ground.
    Type: Application
    Filed: April 13, 2022
    Publication date: July 28, 2022
    Inventors: Steven Boor, Daran DeShazo, Gavin L. Rade
  • Patent number: 11351376
    Abstract: A system and method for extracting ETI load parametric data relative to one or more electrodes of an implanted stimulation lead system associated with an IPG. A Kelvin connection scheme is provided for measuring induced voltages present at stimulated electrodes during a stimulation ramping sequence, which may be used for determining the ETI parametric data using a number of techniques, including, without limitation, a waveform analysis.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: June 7, 2022
    Assignee: Advanced Neuromodulation Systems, Inc.
    Inventors: Daran DeShazo, Steven Boor
  • Patent number: 11331477
    Abstract: A neurostimulation (NS) system and method are provided. The system includes a power supply having positive and negative terminals. The negative terminal defines a reference ground. An array of electrodes includes first and second active electrodes for delivering stimulation therapy configured to be located proximate to neural tissue of interest that is associated with a target region. A control circuit is configured to control delivery of stimulation current for a NS therapy between the first and second electrodes. A current regulator (CR) circuit is connected to, and configured to control current flow through, at least the first electrode during delivery of the stimulation therapy under direction of the control circuit. A floating power supply is connected across power supply terminals of the CR circuit. The CR circuit and floating power supply are coupled to a floating ground node that is electrically separate from the reference ground.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: May 17, 2022
    Assignee: ADVANCED NEUROMODULATION SYSTEMS, INC.
    Inventors: Steven Boor, Daran DeShazo, Gavin L. Rade
  • Publication number: 20220023638
    Abstract: An implantable medical device (IMD) includes an adjustable capacitive voltage multiplier (CVM) that is responsive to diagnostic circuitry configured to provide control signals within a single stimulation current pulse for adjusting the voltage output applied to an electrode of the IMD's lead system. A control counter is coupled to the diagnostic circuitry for incrementing or decrementing an N-bit counter output signal operative to reconfigure a charge pump arrangement of the CVM so as to facilitate an adjusted voltage output.
    Type: Application
    Filed: October 12, 2021
    Publication date: January 27, 2022
    Inventors: Daran DeShazo, Steven Boor, Gavin L. Rade
  • Publication number: 20210402192
    Abstract: Embodiments are directed to an implantable medical device comprising therapeutic stimulation circuitry for controlling delivery of a medical therapy to a patient, the therapeutic stimulation circuitry having at least one lead having electrodes for delivering the medical therapy, The implantable medical device further comprises measurement circuitry for determining characteristics of the at least one lead, a processor for controlling the IMD according to executable code, and memory for storing data and executable code, wherein the executable code comprises instructions for causing the processor to receive a plurality of voltage measurements associated with the electrodes, and calculate values for an impedance model of the electrode/tissue interface.
    Type: Application
    Filed: September 9, 2021
    Publication date: December 30, 2021
    Inventors: Daran DeShazo, Steven Boor, Vidhi Desai