TEMPLATE-BASED DETERMINATION OF ELECTROPHYSIOLOGICAL SIGNAL SOURCES

    公开(公告)号:US20230092658A1

    公开(公告)日:2023-03-23

    申请号:US17410268

    申请日:2021-08-24

    申请人: Medtronic, Inc.

    IPC分类号: A61N1/36 A61N1/05

    摘要: Devices, systems, and techniques are disclosed for managing electrical stimulation therapy and/or sensing of physiological signals such as brain signals. For example, a system is configured to receive information representing a plurality of signals sensed from a tissue of a patient via a plurality of electrode combinations, wherein the plurality of electrode combinations comprises different electrode combinations comprising electrodes disposed at different positions of the lead implanted in the patient, determine one or more features from the information representing the plurality of signals, and compare the one or more features to a plurality of templates, each template of the plurality of templates representing respective locations of a signal source within the tissue. The system may then determine, based on the comparison of the one or more features to the plurality of templates, an estimated location of the signal source with respect to the lead.

    ELECTRODE CHARACTERIZATION FOR PROGRAMMING GUIDANCE

    公开(公告)号:US20220266026A1

    公开(公告)日:2022-08-25

    申请号:US17650038

    申请日:2022-02-04

    申请人: Medtronic, Inc.

    IPC分类号: A61N1/36 A61N1/372 A61N1/05

    摘要: A system includes processing circuitry configured to determine, for each electrode combination of a plurality of electrode combinations, a metric based on a sensed electrical signal from the electrode combination. The processing circuitry is further configured to determine, for each electrode of a plurality of electrodes, a subset of electrode combinations of the plurality of electrode combinations, each electrode combination of the subset of electrode combinations comprising the electrode, wherein the subset of electrode combinations comprises at least two electrode combinations. The processing circuitry is further configured to determine, for each electrode of the plurality of electrodes, a composite metric based on the metrics of the subset of electrode combinations. The processing circuitry is further configured to determine, select, based on the composite metrics of the plurality of electrodes, at least one electrode for at least one of sensing electrical signals or delivering electrical stimulation.

    ELECTRODE MOVEMENT DETECTION
    3.
    发明申请

    公开(公告)号:US20220096841A1

    公开(公告)日:2022-03-31

    申请号:US17036641

    申请日:2020-09-29

    申请人: Medtronic, Inc.

    摘要: Devices, systems, and techniques are disclosed for managing electrical stimulation therapy and/or sensing of physiological signals such as brain signals. For example, a system may assist a clinician in identifying one or more electrode combinations for sensing a brain signal. In another example, a user interface may display brain signal information and values of a stimulation parameter at least partially defining electrical stimulation delivered to a patient when the brain signal information was sensed.

    DIRECTIONAL SENSING FOR PROGRAMMING GUIDANCE

    公开(公告)号:US20220062640A1

    公开(公告)日:2022-03-03

    申请号:US17462676

    申请日:2021-08-31

    申请人: Medtronic, Inc.

    IPC分类号: A61N1/36 A61N1/05

    摘要: Devices, systems, and techniques for identifying electrodes closest to a target region of tissue are described. In one example, a device includes sensing circuitry configured to sense electrical signals from a plurality of electrode combinations. Processing circuitry identifies a first electrode combination of a first subset of electrode combinations. Each electrode combination of the first subset of electrode combination includes electrodes located at different axial positions along a length of the medical lead. The processing circuitry identifies a second electrode combination of a second subset of electrode combinations. Each electrode combination of the second subset of electrode combinations includes electrodes located at a same axial position and different circumferential positions around a perimeter of the medical lead. The processing circuitry then determines a third electrode combination and controls delivery of electrical stimulation via the third electrode combination.

    Probabilistic entropy for detection of periodic signal artifacts

    公开(公告)号:US11033742B2

    公开(公告)日:2021-06-15

    申请号:US16392129

    申请日:2019-04-23

    申请人: Medtronic, Inc.

    摘要: Techniques are disclosed for using probabilistic entropy to select electrodes with fewer artifacts for controlling adaptive electrical neurostimulation. In one example, a plurality of electrodes sense bioelectrical signals of a brain of a patient. Processing circuitry determines, for each bioelectrical signal sensed at a respective electrode of the plurality of electrodes, a probabilistic entropy value of the bioelectrical signal. The processing circuitry compares each of the respective probabilistic entropy values of the bioelectrical signal to respective entropy threshold values and selects, based on the comparisons, a subset of electrodes of the plurality of electrodes. The processing circuitry controls, based on the bioelectrical signals sensed via respective electrodes of the subset of electrodes and excluding the bioelectrical signals of the plurality of bioelectrical signals sensed via respective electrodes not in the subset of electrodes, delivery of electrical stimulation therapy to the patient.

    DETERMINATION OF THERAPY ELECTRODE LOCATIONS RELATIVE TO OSCILLATORY SOURCES WITHIN PATIENT

    公开(公告)号:US20200338353A1

    公开(公告)日:2020-10-29

    申请号:US16395320

    申请日:2019-04-26

    申请人: Medtronic, Inc.

    IPC分类号: A61N1/36 A61N1/05

    摘要: Techniques are described determining electrodes that are proximate or distal to location of an oscillatory signal source in a patient based on current source densities (CSDs). Processing circuitry may determine, for one or more electrodes of a plurality of electrodes, respective time-varying measurements of CSDs, aggregate, for the one or more electrodes of the plurality electrodes, the respective time-varying measurements of the CSDs to generate respective average level values for the one or more electrodes of the plurality of electrodes, determine, for one or more electrodes of the plurality of electrodes, respective phase-magnitude representations of the time-varying measurements of the CSDs. The respective phase-magnitude representations are indicative of respective magnitudes and phases of a particular frequency component of respective time-varying measurements of the CSDs. The particular frequency component is a frequency component having a largest transform coefficient in a time-varying measurement of a CSD having a largest average level value.

    MEDICAL DEVICE TEMPERATURE ESTIMATION
    9.
    发明申请

    公开(公告)号:US20190190296A1

    公开(公告)日:2019-06-20

    申请号:US15843854

    申请日:2017-12-15

    申请人: Medtronic, Inc.

    摘要: Devices, systems, and techniques for monitoring the temperature of a device used to charge a rechargeable power source are disclosed. Implantable medical devices may include a rechargeable power source that can be transcutaneously charged. The temperature of an external charging device and/or an implantable medical device may be monitored to control the temperature exposure to patient tissue during a charging session used to recharge the rechargeable power source. In one example, a temperature sensor may sense a temperature of an internal portion of a device, wherein the housing of the device is not directly thermally coupled to the temperature sensor. A temperature for the housing of the device may then be estimated based on the sensed temperature provided by the non-thermally coupled temperature sensor. A processor may then control charging of the rechargeable power source based on the determined temperature for the housing.