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公开(公告)号：US20220409911A1
公开(公告)日：2022-12-29
申请号：US17355677
申请日：2021-06-23
Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.
Inventor： Daran DeShazo , Gavin Rade
Abstract: An implantable medical device (IMD) 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 IMD's lead system when implanted in a patient. The output switching circuitry may be configured to facilitate self-test mode (STM) functionality in the IMD (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.
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公开(公告)号：US20220203107A1
公开(公告)日：2022-06-30
申请号：US17501741
申请日：2021-10-14
Applicant: Advanced Neuromodulation Systems,Inc.
Inventor： Robert Nobles , Greg Creek , Daran DeShazo
Abstract: A system and method for operating an implanted medical device (IMD) based on a waveform player. In one arrangement, the IMD may comprise a first module operative to effectuate a communication interface with an external device for receiving a plurality of program records for storage in a persistent memory, the program records each comprising a plurality of pulse definitions and a plurality of time interval definitions, wherein a pulse definition comprises a set of pulse characteristics to be applied in a particular time interval. A second module may be communicatively coupled to the first module, the second module including a buffer for containing a runtime image of a selected program record loaded from the persistent memory. A waveform player provided as part of the second module is operative to interpret the runtime image to generate control signals to drive an output driver circuit for applying pulse characteristics to a select set of electrodes according to the pulse definitions of the selected program record.
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43.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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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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Patent Agency Ranking
46.发明申请公开(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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47.发明授权公开(公告)号：US12177367B1
公开(公告)日：2024-12-24
申请号：US17982853
申请日：2022-11-08
Applicant: Advanced Neuromodulation Systems, Inc.
Inventor： Greg Creek , Steve Gray , Daran DeShazo , Luis Ortiz Hernandez
Abstract: Embodiments provide methods of conducting operations with an implantable medical device (IMD) and an external controller device for performing authentication operations. In some embodiments, the method comprises: generating or storing an authentication data structure in the external controller device for over-the-air communication between the external device and the IMD, wherein the authentication data structure is generated by: (1) removing attribute fields from a first digital certificate and adding a public key of the external controller device to form an intermediate data structure; (2) creating a digital signature of the first intermediate data structure using a second digital certificate of an issuing certificate authority (CA); and (3) forming the authentication data structure by combining the intermediate data structure, the created digital signature, a public key of the issuing CA, and a digital signature of the public key of the issuing CA created using a third digital certificate of a root CA.
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公开(公告)号：US20240221483A1
公开(公告)日：2024-07-04
申请号：US18540792
申请日：2023-12-14
Applicant: Advanced Neuromodulation Systems, Inc.
Inventor： Daran DeShazo , Edward Lundberg
CPC classification number: G08B21/182 , A61B5/076 , G06F11/302 , G06F11/3466 , 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.
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49.发明授权公开(公告)号：US12005257B2
公开(公告)日：2024-06-11
申请号：US17405804
申请日：2021-08-18
Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.
Inventor： Gavin Rade , Daran DeShazo
CPC classification number: A61N1/36167 , A61N1/025 , A61N1/36132 , A61N1/37223 , A61N1/37247
Abstract: An implantable medical device (IMD) configured to provide stimulation therapy using an instruction set architecture (ISA) includes a main processor operating at a first frequency and a secondary processor operating at a second frequency lower than the first frequency. Example ISA may comprise assembly-language-like instructions that may be executed by the secondary processor for configuring one or more stimulation engines (SEs) to cause stimulation of select electrode sets of a lead system based on one or more pulse definitions and one or more timing definitions corresponding to a therapy program selection effectuated by a user at an external device.
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公开(公告)号：US20240033529A1
公开(公告)日：2024-02-01
申请号：US18342412
申请日：2023-06-27
Applicant: ADVANCED NEUROMODULATION SYSTEMS, INC.
Inventor： Daran DeShazo
CPC classification number: A61N1/36175 , A61N1/37252
Abstract: Provided is an implantable pulse generator (IPG) that includes a controller, and stimulation circuitry for generating electrical pulses to stimulate neural tissue of the patient. The IPG also includes a static random-access memory (SRAM) component for storing data to control the generating of the electrical pulses, wherein the SRAM component is connected to at least the controller through a first interface bus at a first word width and is connected to at least the stimulation circuitry through a second interface bus at a second word width. The SRAM component comprises column select logic that decodes read or write (R/W) access from the controller and provides for selective connection of each column of the SRAM component to the first interface bus during the R/W access, or to the second interface bus during stimulation operations to provide stimulation control data to components of the stimulation circuitry.
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