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1.发明公开公开(公告)号：US20240325765A1
公开(公告)日：2024-10-03
申请号：US18620261
申请日：2024-03-28
Applicant: Advanced Neuromodulation Systems, Inc.
Inventor： Luis Ortiz Hernandez , Santhosh Seetharaman , Seil Oh , Edward Lundberg , Nicholas Sachs , Hongxuan Zhang , William Winstrom
CPC classification number: A61N1/3787 , A61N1/37223 , A61N1/37247
Abstract: The present disclosure provides systems and methods for wirelessly charging an implantable medical device. An external charging device includes a coil, signal generating circuitry to drive current through the coil at a charging frequency to induce current in a second coil in the implantable medical device, monitoring circuitry to generate an output signal to monitor charging operations, and a comb filter. The comb filter is configured to apply filtering to the output signal to remove noise from the output signal, wherein the filtering is applied based on the charging frequency. The external charging device is configured to process the filtered output signal to detect a circuit state of charging circuitry of the implantable medical device during charging operations, and the external charging device is configured to vary the charging frequency based, in part, on detection of the circuit state of the charging circuitry of the implantable medical device.
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公开(公告)号：US20230218900A1
公开(公告)日：2023-07-13
申请号：US17574542
申请日：2022-01-12
Applicant: Advanced Neuromodulation Systems, Inc.
Inventor： Hyun-Joo Park , Yagna Pathak , Hongxuan Zhang , Anahita Kyani , Erika Ross , Jeffrey Urbanski
CPC classification number: A61N1/36071 , A61N1/36062 , A61N1/36139 , A61N1/375
Abstract: Devices and methods to effectuate closed loop electrical stimulation of nerve tissue, based on feedback data, to mitigate pain of a patient are disclosed. Feedback data corresponding to bioelectric signals of neurons stimulated by stimulation pulses may be received and analyzed. Based on receipt of the feedback data, it may be determined to modify one or more stimulation parameters, corresponding to the stimulation pulses, to enhance an efficacy of the stimulation pulses at blocking generation and/or propagation of one or more pain signals through a neuroanatomy of the patient. Subsequent and additional stimulation pulses may be provided based on a modified set of stimulation parameters and configured to enhance attenuation of generation and/or transmission of pain signals through the neuroanatomy of the patient to ultimately reduce a level of pain experienced by the patient.
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Patent Agency Ranking
3.发明申请公开(公告)号：US20220407366A1
公开(公告)日：2022-12-22
申请号：US17353768
申请日：2021-06-21
Applicant: Advanced Neuromodulation Systems, Inc.
Inventor： Hongxuan Zhang , Li Sun , Luis Ortiz Hernandez
Abstract: A method of operation of a wireless charger device includes transmitting a wireless charging signal to a receiver device. The method further includes receiving a clamping pulse from the receiver device based on the wireless charging signal. The clamping pulse indicates a first value associated with a falling edge of the clamping pulse and further indicates a second value associated with a rising edge of the clamping pulse. The clamping pulse is detected based on a comparison of a first threshold with the first value and further based on a comparison of a second threshold with the second value, and the second threshold is different than the first threshold. The method further includes determining a charging state of the receiver device based on the clamping pulse.
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公开(公告)号：US20220193426A1
公开(公告)日：2022-06-23
申请号：US17412802
申请日：2021-08-26
Applicant: Advanced Neuromodulation Systems, Inc.
Inventor： Luis Ortiz Hernandez , Santhosh Seetharaman , Seil Oh , Edward Lundberg , Nicholas Sachs , Hongxuan Zhang , William Winstrom
Abstract: The present disclosure provides systems and methods for wirelessly charging an implantable medical device. An external charging device includes a coil, signal generating circuitry to drive current through the coil at a charging frequency to induce current in a second coil in the implantable medical device, monitoring circuitry to generate an output signal to monitor charging operations, and a comb filter. The comb filter is configured to apply filtering to the output signal to remove noise from the output signal, wherein the filtering is applied based on the charging frequency. The external charging device is configured to process the filtered output signal to detect a circuit state of charging circuitry of the implantable medical device during charging operations, and the external charging device is configured to vary the charging frequency based, in part, on detection of the circuit state of the charging circuitry of the implantable medical device.
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5.发明申请公开(公告)号：US20220320890A1
公开(公告)日：2022-10-06
申请号：US17410796
申请日：2021-08-24
Applicant: Advanced Neuromodulation Systems, Inc.
Inventor： Hongxuan Zhang , Li Sun , Luis Ortiz-Hernandez
Abstract: An implantable medical device (IMD) is configured to provide stimulation therapy to a patient. The IMD includes a rechargeable battery, pulse generating circuitry powered by the rechargeable battery and an inductive coupling element including at least one inductor operative to accept radio frequency (RF) power from an external charger and generate a charging voltage. A temperature sensor is configured to measure a temperature of at least a part of the IMD and output measured temperature data. A waveform generating circuit for converting measured temperature data to a waveform signal for controlling a recharging current for the rechargeable battery. The inductive coupling element is configured to communicate the waveform signal to the external charger.
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公开(公告)号：US11969605B2
公开(公告)日：2024-04-30
申请号：US17412802
申请日：2021-08-26
Applicant: Advanced Neuromodulation Systems, Inc.
Inventor： Luis Ortiz Hernandez , Santhosh Seetharaman , Seil Oh , Edward Lundberg , Nicholas Sachs , Hongxuan Zhang , William Winstrom
CPC classification number: A61N1/3787 , A61N1/37223 , A61N1/37247
Abstract: The present disclosure provides systems and methods for wirelessly charging an implantable medical device. An external charging device includes a coil, signal generating circuitry to drive current through the coil at a charging frequency to induce current in a second coil in the implantable medical device, monitoring circuitry to generate an output signal to monitor charging operations, and a comb filter. The comb filter is configured to apply filtering to the output signal to remove noise from the output signal, wherein the filtering is applied based on the charging frequency. The external charging device is configured to process the filtered output signal to detect a circuit state of charging circuitry of the implantable medical device during charging operations, and the external charging device is configured to vary the charging frequency based, in part, on detection of the circuit state of the charging circuitry of the implantable medical device.
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7.发明申请公开(公告)号：US20220226659A1
公开(公告)日：2022-07-21
申请号：US17411930
申请日：2021-08-25
Applicant: Advanced Neuromodulation Systems, Inc.
Inventor： Hongxuan Zhang , Li Sun , Luis Ortiz-Hernandez
Abstract: An implantable medical device (IMD) includes a rechargeable battery, pulse generating circuitry, an inductive coupling element including at least one inductor operative to accept radio frequency (RF) power from an external charger and generate a charging current. A recharging circuit generates a recharge current for recharging the rechargeable battery, the recharge current being based on the charging current generated from the inductive coupling element. The recharging circuitry is operable to detect a recharging level of the rechargeable battery. A temperature sensor is configured to measure a temperature of at least a part of the IMD and output measured temperature data. A control circuit controls the charging current received at the recharging circuitry to limit the charging current based upon the recharging level and to limit the charging current for a period of time based upon the measured temperature data to communicate a temperature level to the external charger.
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