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公开(公告)号：US20250073459A1
公开(公告)日：2025-03-06
申请号：US18951606
申请日：2024-11-18
Applicant: Advanced Neuromodulation Systems, Inc.
Inventor： Steven Boor , Daran DeShazo
IPC: A61N1/08 , A61B18/00 , A61M31/00 , A61N1/36 , A61N1/362 , A61N1/37 , A61N1/39 , A61N2/00 , H02M3/07 , H03K5/1252 , H03K5/24
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.
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公开(公告)号：US12144984B2
公开(公告)日：2024-11-19
申请号：US16931030
申请日：2020-07-16
Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.
Inventor： Steven Boor , Daran DeShazo
IPC: A61N1/08 , A61B18/00 , A61M31/00 , A61N1/36 , A61N1/362 , A61N1/37 , A61N1/39 , A61N2/00 , H02M3/07 , H03K5/1252 , H03K5/24
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.
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3.发明公开公开(公告)号：US20240082580A1
公开(公告)日：2024-03-14
申请号：US18515440
申请日：2023-11-21
Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.
Inventor： Steven Boor , Daran DeShazo
CPC classification number: A61N1/36071 , A61N1/08 , A61N1/0456
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. During a discharge operation, the control circuit is configured to manage the CR circuit to control a discharge current flow over the discharge operation to discharge the residual voltage after therapy delivery in a manner that follows an actively emulated passive discharge (AEPD) profile. During the discharge operation, the CR circuit is connected to the inactive electrode. The CR circuit receives, as a first input, an EMI feedback signal from the EMI antenna. The CR circuit is configured to regulate the discharge current flow through the active electrode based on the EMI feedback signal, to maintain the AEPD profile over the discharge operation while in a presence of an EMI event.
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4.发明申请公开(公告)号：US20220023638A1
公开(公告)日：2022-01-27
申请号：US17498983
申请日：2021-10-12
Applicant: Advanced Neuromodulation Systems, Inc.
Inventor： Daran DeShazo , Steven Boor , Gavin L. Rade
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：US20210330978A1
公开(公告)日：2021-10-28
申请号：US16855212
申请日：2020-04-22
Applicant: Advanced Neuromodulation Systems, Inc.
Inventor： Steven Boor , Daran DeShazo
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.
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Patent Agency Ranking
公开(公告)号：US20210178162A1
公开(公告)日：2021-06-17
申请号：US17186630
申请日：2021-02-26
Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.
Inventor： Steven Boor , Daran DeShazo
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. During a discharge operation, the control circuit is configured to manage the CR circuit to control a discharge current flow over the discharge operation to discharge the residual voltage after therapy delivery in a manner that follows an actively emulated passive discharge (AEPD) profile. During the discharge operation, the CR circuit is connected to the inactive electrode. The CR circuit receives, as a first input, an EMI feedback signal from the EMI antenna. The CR circuit is configured to regulate the discharge current flow through the active electrode based on the EMI feedback signal, to maintain the AEPD profile over the discharge operation while in a presence of an EMI event.
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公开(公告)号：US20200306533A1
公开(公告)日：2020-10-01
申请号：US16370428
申请日：2019-03-29
Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.
Inventor： Daran DeShazo , Steven Boor , Vidhi Desai
Abstract: In one embodiment, an implantable pulse generator (IPG) for providing a neurostimulation therapy, comprises: pulse generation circuitry and pulse delivery circuitry for controlling generation and delivery of electrical pulses to a patient using one or more electrodes of a stimulation lead; measurement circuitry for determining characteristics of one or more electrodes selected for delivery of electrical pulses; and a processor for controlling the IPG according to executable code; wherein the IPG is adapted to calculate values for an impedance model of the one or more selected electrodes using the determined plurality of voltage measurements and to adjust current levels for the exponentially decreasing current pattern based on the calculated values for the impedance mode.
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公开(公告)号：US20240216695A1
公开(公告)日：2024-07-04
申请号：US18609485
申请日：2024-03-19
Applicant: Advanced Neuromodulation Systems, Inc.
Inventor： Daran DeShazo , Steven Boor
CPC classification number: A61N1/36153 , A61N1/3606 , A61N1/37235 , A61N1/378
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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9.发明公开公开(公告)号：US20240017073A1
公开(公告)日：2024-01-18
申请号：US18352546
申请日：2023-07-14
Applicant: Advanced Neuromodulation Systems, Inc.
Inventor： Steven Boor
CPC classification number: A61N1/36153 , A61N1/36062 , A61N1/0534
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.
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公开(公告)号：US11857789B2
公开(公告)日：2024-01-02
申请号：US17186630
申请日：2021-02-26
Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.
Inventor： Steven Boor , Daran DeShazo
CPC classification number: A61N1/36071 , A61N1/08 , A61N1/0452 , A61N1/0456 , A61N1/0534 , A61N1/0551
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. During a discharge operation, the control circuit is configured to manage the CR circuit to control a discharge current flow over the discharge operation to discharge the residual voltage after therapy delivery in a manner that follows an actively emulated passive discharge (AEPD) profile. During the discharge operation, the CR circuit is connected to the inactive electrode. The CR circuit receives, as a first input, an EMI feedback signal from the EMI antenna. The CR circuit is configured to regulate the discharge current flow through the active electrode based on the EMI feedback signal, to maintain the AEPD profile over the discharge operation while in a presence of an EMI event.
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