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    IMPLANTABLE PULSE GENERATOR WITH MULTIPLE STIMULATION ENGINES
    11.
    发明公开
    IMPLANTABLE PULSE GENERATOR WITH MULTIPLE STIMULATION ENGINES 审中-公开

    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

    IPC: A61N1/36 ,  A61N1/372 ,  A61N1/378

    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.

    Paddle leads for neurostimulation and method of delivering the same
    14.
    发明授权
    Paddle leads for neurostimulation and method of delivering the same 有权

    公开(公告)号：US11938316B2

    公开(公告)日：2024-03-26

    申请号：US18167218

    申请日：2023-02-10

    Applicant: Advanced Neuromodulation Systems, Inc.

    Inventor： Joshua R. Feler ,  Claudio A. Feler

    IPC: A61N1/05

    CPC classification number: A61N1/0553

    Abstract: Paddle lead including a lead body having a distal end, a proximal end, and a central axis extending therebetween. The lead body includes opposite first and second sides that extend between the distal and proximal ends. The paddle lead also includes electrodes disposed along the first side of the lead body that are configured to apply neurostimulation therapy within an epidural space of a patient. The electrodes are electrically coupled to conductive pathways that extend through the proximal end of the lead body. The lead body includes a flexible material a flexible material that is configured to flex when a fluid pressure is imposed on the lead body in the epidural space. The lead body is configured to have a non-planar contour that folds or curves about the central axis when experiencing the fluid pressure.

    SYSTEMS AND METHODS TO COMPENSATE FOR WAVEFORM DISTORTION
    15.
    发明公开
    SYSTEMS AND METHODS TO COMPENSATE FOR WAVEFORM DISTORTION 审中-公开

    公开(公告)号：US20240017075A1

    公开(公告)日：2024-01-18

    申请号：US18221373

    申请日：2023-07-12

    Applicant: Advanced Neuromodulation Systems, Inc.

    Inventor： Hyun-Joo Park ,  Yagna Pathak

    IPC: A61N1/36

    CPC classification number: A61N1/36189 ,  A61N1/36139 ,  A61N1/36071

    Abstract: Devices and methods to effectuate waveform distortion adjusted stimulation therapy of tissue, based on an inverse model of the tissue, are disclosed. In some aspects a linear model of an electrode used to delivery therapy and of the tissue is determined. Parameter values of the linear model may be determined based on measuring voltage feedback during application of stimulation and/or measurement waveforms. The parameter values of the linear model of the electrode and tissue may be used to determine a forward model of the electrical response of the tissue. From the forward model, an inverse model of the tissue may be determined and the inverse model can be used to modify or filter a stimulation waveform to reduce waveform distortion caused by tissue, such as tissue primitive and/or tissue capacitance. Accordingly, providing therapy with the filtered waveform may have increased efficacy by accounting for and adjusting for waveform distortion.

    Neurostimulation method and system for active emulation of passive discharge in presence of MRI/EMI interference
    17.
    发明授权
    Neurostimulation method and system for active emulation of passive discharge in presence of MRI/EMI interference 有权

    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

    IPC: A61N1/36 ,  A61N1/08 ,  A61N1/04 ,  A61N1/05

    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.

    MRI-compatible implantable medical devices
    19.
    发明授权
    MRI-compatible implantable medical devices 有权

    公开(公告)号：US11779757B2

    公开(公告)日：2023-10-10

    申请号：US17382294

    申请日：2021-07-21

    Applicant: Advanced Neuromodulation Systems, Inc.

    Inventor： Matthew Lopez

    IPC: A61N1/08 ,  A61N1/36

    CPC classification number: A61N1/086 ,  A61N1/36062 ,  A61N1/36114

    Abstract: One or more antennas are electrically coupled to one or more switches of an implantable medical device (IMD) in which the one or more switches are additionally electrically coupled to one or more lead wires of an IMD lead. The one or more switches also are electrically coupled to one or more electrodes or electrical circuitry of the IMD's implantable pulse generator (IPG). In response to exposure of the IMD to an energetic electromagnetic field, a voltage signal is induced in the one or more antennas and provided, possibly via one more filters, as a control signal to the one or more switches. Receipt of the control signal by the one or more switches automatically configures the one or more switches into a non-conductive state, thereby electrically isolating the one or more lead wires from the one or more electrodes or the IPG electrical circuitry.

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