MRI-compatible implantable medical devices

    公开(公告)号:US11779757B2

    公开(公告)日:2023-10-10

    申请号:US17382294

    申请日:2021-07-21

    Inventor: Matthew Lopez

    CPC classification number: A61N1/086 A61N1/36062 A61N1/36114

    Abstract: One or more antennas are electrically coupled to one or more switches of an implantable medical device (IMD) in which the one or more switches are additionally electrically coupled to one or more lead wires of an IMD lead. The one or more switches also are electrically coupled to one or more electrodes or electrical circuitry of the IMD's implantable pulse generator (IPG). In response to exposure of the IMD to an energetic electromagnetic field, a voltage signal is induced in the one or more antennas and provided, possibly via one more filters, as a control signal to the one or more switches. Receipt of the control signal by the one or more switches automatically configures the one or more switches into a non-conductive state, thereby electrically isolating the one or more lead wires from the one or more electrodes or the IPG electrical circuitry.

    MRI-COMPATIBLE IMPLANTABLE MEDICAL DEVICES

    公开(公告)号:US20230028065A1

    公开(公告)日:2023-01-26

    申请号:US17382294

    申请日:2021-07-21

    Inventor: Matthew Lopez

    Abstract: One or more antennas are electrically coupled to one or more switches of an implantable medical device (IMD) in which the one or more switches are additionally electrically coupled to one or more lead wires of an IMD lead. The one or more switches also are electrically coupled to one or more electrodes or electrical circuitry of the IMD's implantable pulse generator (IPG). In response to exposure of the IMD to an energetic electromagnetic field, a voltage signal is induced in the one or more antennas and provided, possibly via one more filters, as a control signal to the one or more switches. Receipt of the control signal by the one or more switches automatically configures the one or more switches into a non-conductive state, thereby electrically isolating the one or more lead wires from the one or more electrodes or the IPG electrical circuitry.

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