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公开(公告)号：US20210236822A1
公开(公告)日：2021-08-05
申请号：US16778255
申请日：2020-01-31
Applicant: Advanced Neuromodulation Systems, Inc.
Inventor： Daran DeShazo , Steven Boor
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.
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22.发明申请公开(公告)号：US20200346014A1
公开(公告)日：2020-11-05
申请号：US16401943
申请日：2019-05-02
Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.
Inventor： Steven Boor , Daran DeShazo
Abstract: A neurostimulation system (NS) includes an array of electrodes positioned within a patient with an active cathode electrode located proximate to target neural tissue. A control circuit is controls delivery of therapy during a therapy delivery interval, with the therapy being delivered between an anode electrode and the active electrode. A current regulator circuit (CRC) is connected to the cathode electrode and controls current flow through the cathode electrodes. The control circuit manages the CRC to control a discharge current flow over the discharge operation to discharge developed residual voltage between the anode electrode and the active electrode in a manner that follows an actively emulated passive discharge (AEPD) profile. During the discharge operation, the CRC is connected to the inactive electrode, and receives, as a first input, an EMI feedback signal. The CRC regulates the discharge current flow through the active electrode based on the EMI feedback signal, to maintain the AEPD profile over the discharge operation during an EMI event.
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23.发明公开公开(公告)号：US20230390561A1
公开(公告)日：2023-12-07
申请号：US18451181
申请日：2023-08-17
Applicant: Advanced Neuromodulation Systems, Inc.
Inventor： Steven Boor , Daran DeShazo
CPC classification number: A61N1/36178 , A61N1/36175 , A61N1/36038 , A61N1/39622 , A61N1/36062 , A61N1/3704 , A61N1/36053 , A61B5/304 , A61N1/36128 , A61N1/37 , A61N1/36114
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.
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24.发明授权公开(公告)号：US11779763B2
公开(公告)日：2023-10-10
申请号：US17498983
申请日：2021-10-12
Applicant: Advanced Neuromodulation Systems, Inc.
Inventor： Daran DeShazo , Steven Boor , Gavin L. Rade
CPC classification number: A61N1/36125 , A61N1/3787 , A61N1/36062 , A61N1/36071 , A61N1/37211
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.
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公开(公告)号：US20220233850A1
公开(公告)日：2022-07-28
申请号：US17720239
申请日：2022-04-13
Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.
Inventor： Steven Boor , Daran DeShazo , Gavin L. Rade
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.
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Patent Agency Ranking
公开(公告)号：US20210402192A1
公开(公告)日：2021-12-30
申请号：US17447272
申请日：2021-09-09
Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.
Inventor： Daran DeShazo , Steven Boor , Vidhi Desai
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.
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公开(公告)号：US11135439B2
公开(公告)日：2021-10-05
申请号：US16370357
申请日：2019-03-29
Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.
Inventor： Daran DeShazo , Steven Boor , Vidhi Desai
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.
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公开(公告)号：US11135434B2
公开(公告)日：2021-10-05
申请号：US16433975
申请日：2019-06-06
Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.
Inventor： Steven Boor
Abstract: The present disclosure provides systems and methods for protection circuitry for an implantable pulse generator (IPG) of a neurostimulation system. The protection circuitry is coupled to an IPG ground, a plurality of electrodes, and an IPG case, and operable to protect IPG stimulation and sensing circuitry from damage during electrostatic discharge and cardiac defibrillation, and to mitigate unintended stimulation during electromagnetic interference. The protection circuitry includes an IPG ground connection, a plurality of protection Zener diodes, wherein one of the protection Zener diodes is electrically coupled between the IPG case and a float Zener diode, and wherein the remaining protection Zener diodes are electrically coupled between the plurality of electrodes and the float Zener diode, and the float Zener diode electrically coupled between the plurality of protection Zener diodes and the IPG ground.
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公开(公告)号：US20210252291A1
公开(公告)日：2021-08-19
申请号：US16790443
申请日：2020-02-13
Applicant: Advanced Neuromodulation Systems, Inc.
Inventor： Daran DeShazo , Steven Boor , Gavin L Rade
IPC: A61N1/36 , A61N1/39 , A61N1/05 , A61N1/362 , A61B5/04 , A61N1/02 , A61N2/00 , A61B18/14 , A61B18/00
Abstract: An implantable medical device (IMD) includes multiple stimulation engines (SEs) for independently stimulating respective electrode sets of a lead system. A voltage multiplier (VM) is configured to generate an adjustable target voltage at an output node. Each stimulation engine includes first switching circuitry to switchably connect an anodic node of the SE to the VM output node and second switching circuitry to switchably connect a cathodic node of the SE to a current sink circuit. Discharge switching circuitry may be disposed between the anodic and cathodic nodes of each SE. A selector and associated digital control logic block are operative to generate control signals for independently controlling respective SEs such that each SE may be activated to stimulate or discharge a corresponding select set of electrodes independently from or in concert with remaining SEs.
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公开(公告)号：US20200338352A1
公开(公告)日：2020-10-29
申请号：US16397875
申请日：2019-04-29
Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.
Inventor： Daran DeShazo , Steven Boor , Gavin L. Rade
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.
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