Posture-based control of electrical stimulation therapy

    公开(公告)号:US12168131B2

    公开(公告)日:2024-12-17

    申请号:US18482657

    申请日:2023-10-06

    Abstract: Devices, systems, and techniques are described for selecting an evoked compound action potential (ECAP) growth curve based on a posture of a patient. The ECAP growth curve defines a relationship between a parameter defining delivery of stimulation pulses delivered to the patient and a parameter of an ECAP signal of a nerve of a patient elicited by a stimulation pulse. In one example, a medical device detects a posture of a patient and selects an ECAP growth curve corresponding to the detected posture. The medical device selects, based on the ECAP growth curve corresponding to the detected posture and a characteristic of a detected ECAP signal, a value for a parameter for defining delivery of the stimulation pulses to the patient and controls delivery of the stimulation pulses according to the selected value for the parameter.

    Control pulses and posture for ECAPs

    公开(公告)号:US12011595B2

    公开(公告)日:2024-06-18

    申请号:US17100455

    申请日:2020-11-20

    CPC classification number: A61N1/36062 A61N1/36139 A61N1/36153 A61N1/36192

    Abstract: Systems, devices, and techniques for adjusting electrical stimulation based on a posture state of a patient are described. For example, processing circuitry is configured to control delivery of a first informed stimulation pulse defined by at least a first value of an informed stimulation parameter, control delivery of a control stimulation pulse to a patient, the control stimulation pulse defined by at least a first value of a control stimulation parameter, determine a characteristic value of the ECAP signal elicited from the control stimulation pulse, receive, from a sensor, a posture state signal representing a posture state of the patient, and adjust, based on the characteristic value of the ECAP signal and the posture state signal, the first value of the informed stimulation parameter to a second value of the informed stimulation parameter.

    Analyzing ECAP signals
    3.
    发明授权

    公开(公告)号:US11944819B2

    公开(公告)日:2024-04-02

    申请号:US16924990

    申请日:2020-07-09

    Abstract: Systems, devices, and techniques are described for analyzing evoked compound action potentials (ECAP) signals to assess the effect of a delivered electrical stimulation signal. In one example, a system includes a stimulation generator configured to deliver a stimulation pulse to a patient, sensing circuitry configured to sense an evoked compound action potential (ECAP) signal evoked from the stimulation pulse, and processing circuitry. The processing circuitry may be configured to determine a maximum value of a derivative of the ECAP signal, determine a minimum value of the derivative of the ECAP signal, determine, based on the maximum value of the derivative and the minimum value of the derivative, a characteristic value of the ECAP signal, and determine, based on the characteristic value of the ECAP signal, at least one parameter value at least partially defining electrical stimulation therapy to be delivered to the patient.

    HYSTERESIS COMPENSATION FOR DETECTION OF ECAPS

    公开(公告)号:US20240050753A1

    公开(公告)日:2024-02-15

    申请号:US18495396

    申请日:2023-10-26

    Abstract: Systems, devices, and techniques are described for adjusting electrical stimulation based on detected ECAPs. In one example, a medical device includes processing circuitry configured to control stimulation circuitry to deliver a first electrical stimulation pulse and sensing circuitry to detect, after delivery of the first electrical stimulation pulse, an ECAP signal. The processing circuitry may be configured to determine a characteristic value of the ECAP signal, determine an ECAP differential value that indicates whether the characteristic value of the ECAP signal is one of greater than a selected ECAP characteristic value or less than the selected ECAP characteristic value, determine, based on the ECAP differential value, a gain value, determine, based on the gain value, a parameter value that at least partially defines a second electrical stimulation pulse, and control the stimulation circuitry to deliver the second electrical stimulation pulse according to the parameter value.

    Stimulation lead with electrodes configured for sensing and stimulation over a partial circumference

    公开(公告)号:US11559258B2

    公开(公告)日:2023-01-24

    申请号:US16862732

    申请日:2020-04-30

    Abstract: A lead body is operable to be implanted proximate a target nerve tissue of a patient. A sensing electrode is configured to sense biopotentials over a first partial circumference of the lead body. A stimulation electrode is configured to deliver stimulation energy over a second partial circumference of the lead body. A signal generator is electrically coupled to the stimulation electrode and a sensing circuit is coupled to the sensing electrode. A processor is operable to apply a stimulation signal to the stimulation electrode via the signal generator and, via the sensing circuit, sense an evoked response to the stimulation signal that propagates along a neural pathway.

    Posture-based control of electrical stimulation therapy

    公开(公告)号:US11202912B2

    公开(公告)日:2021-12-21

    申请号:US16721528

    申请日:2019-12-19

    Abstract: Devices, systems, and techniques are described for selecting an evoked compound action potential (ECAP) growth curve based on a posture of a patient. The ECAP growth curve defines a relationship between a parameter defining delivery of stimulation pulses delivered to the patient and a parameter of an ECAP signal of a nerve of a patient elicited by a stimulation pulse. In one example, a medical device detects a posture of a patient and selects an ECAP growth curve corresponding to the detected posture. The medical device selects, based on the ECAP growth curve corresponding to the detected posture and a characteristic of a detected ECAP signal, a value for a parameter for defining delivery of the stimulation pulses to the patient and controls delivery of the stimulation pulses according to the selected value for the parameter.

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