公开(公告)号：US20240278021A1

公开(公告)日：2024-08-22

申请号：US18651413

申请日：2024-04-30

Applicant: Advanced Neuromodulation Systems, Inc.

Inventor： Daran DeShazo ,  Gavin L. Rade

IPC: A61N1/372 ,  A61B5/367 ,  A61N1/36 ,  A61N1/362 ,  A61N1/378 ,  A61N1/38 ,  A61N1/39 ,  A61N2/00

CPC classification number: A61N1/37235 ,  A61N1/37223 ,  A61N1/378 ,  A61B5/367 ,  A61N1/36038 ,  A61N1/36053 ,  A61N1/36062 ,  A61N1/36082 ,  A61N1/362 ,  A61N1/38 ,  A61N1/39622 ,  A61N2/006

Abstract: An implantable medical device (IMO) includes one or more stimulation engines (SEs) and selectively connectable output switching circuitry for driving a plurality of output nodes associated with a respective plurality of electrodes of the IMO's lead system when implanted in a patient. The output switching circuitry may be configured to facilitate self-test mode (STM) functionality in the IMO (e.g., when it is in a hermetically sealed package) by using a dual mode switch in series with a stimulation engine selection switch with respect to each output node in the output switching circuitry under mode selection control.

公开(公告)号：US20240221928A1

公开(公告)日：2024-07-04

申请号：US18540802

申请日：2023-12-14

Applicant: Advanced Neuromodulation Systems, Inc.

Inventor： Daran DeShazo ,  Edward Lundberg

IPC: G16H40/40 ,  A61N1/02 ,  A61N1/08 ,  A61N1/372 ,  G16H40/67

CPC classification number: G16H40/40 ,  A61N1/025 ,  A61N1/08 ,  A61N1/37217 ,  G16H40/67

Abstract: A system and method of quantifying, maintaining and managing the functional status and/or therapy settings of an IMD based on code path metrics is disclosed. The codebase of device firmware modules may be instrumented to obtain tracing data and timing metrics data corresponding to different code paths that may be taken when a device subsystem or associated functionality is accessed or activated. Code path metrics of actual code paths may be analyzed to detect a deviation from baseline code path metrics and generate a corresponding graduated response.

公开(公告)号：US11931584B2

公开(公告)日：2024-03-19

申请号：US17460227

申请日：2021-08-29

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.

公开(公告)号：US11771904B2

公开(公告)日：2023-10-03

申请号：US16917199

申请日：2020-06-30

Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.

Inventor： Steven Boor ,  Daran DeShazo

IPC: A61N1/36 ,  A61N1/39 ,  A61B5/304 ,  A61N1/37

CPC classification number: A61N1/36178 ,  A61B5/304 ,  A61N1/36038 ,  A61N1/36053 ,  A61N1/36062 ,  A61N1/36114 ,  A61N1/36128 ,  A61N1/36175 ,  A61N1/37 ,  A61N1/3704 ,  A61N1/39622

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.

公开(公告)号：US11426588B2

公开(公告)日：2022-08-30

申请号：US16855211

申请日：2020-04-22

Applicant: Advanced Neuromodulation Systems, Inc.

Inventor： Gavin Rade ,  Daran DeShazo

IPC: A61N1/36 ,  A61N1/02

Abstract: The present disclosure provides systems and methods for generating waveforms for an implantable pulse generator of a neurostimulation system. A waveform generation system includes a computing device, at least one buffer memory, and at least one programmable current regulator. The at least one buffer memory is coupled between the computing device and the at least one programmable current regulator. The computing device is configured to load a string of output current values into the at least one buffer memory, and the at least one buffer memory is configured to sequentially feed each output current value to the at least one programmable current regulator. Further, the at least one programmable current regulator is configured to control current supplied to a plurality of electrodes based on the received output current values.

公开(公告)号：US20210387007A1

公开(公告)日：2021-12-16

申请号：US17460227

申请日：2021-08-29

Applicant: Advanced Neuromodulation Systems, Inc.

Inventor： Daran DeShazo ,  Steven Boor

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

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.

公开(公告)号：US11160984B2

公开(公告)日：2021-11-02

申请号：US16370428

申请日：2019-03-29

Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.

Inventor： Daran DeShazo ,  Steven Boor ,  Vidhi Desai

IPC: A61N1/36 ,  A61N1/02 ,  A61N1/08 ,  A61N1/372

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.

公开(公告)号：US11135431B2

公开(公告)日：2021-10-05

申请号：US16778255

申请日：2020-01-31

Applicant: Advanced Neuromodulation Systems, Inc.

Inventor： Daran DeShazo ,  Steven Boor

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

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.

公开(公告)号：US20210244948A1

公开(公告)日：2021-08-12

申请号：US16783837

申请日：2020-02-06

Applicant: Advanced Neuromodulation Systems, Inc.

Inventor： Daran DeShazo ,  Steven Boor

IPC: A61N1/36

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.

公开(公告)号：US10946199B2

公开(公告)日：2021-03-16

申请号：US16401943

申请日：2019-05-02

Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.

Inventor： Steven Boor ,  Daran DeShazo

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

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.