Digitally timed CMOS rectifier for wireless power transfer

    公开(公告)号:US11239698B1

    公开(公告)日:2022-02-01

    申请号:US17087685

    申请日:2020-11-03

    Abstract: A digitally timed complementary metal oxide semiconductor (CMOS) rectifier for wireless power transfer in an implanted medical device is provided. According to one aspect, a voltage rectification circuit for a medical device having an internal coil and internal circuitry includes a voltage rectifier comprising a complementary metal oxide semiconductor (CMOS) circuit having low-side first type MOS transistors and upper cross-coupled second type MOS transistors. The voltage rectifier may be configured to output a rectified received voltage, each low-side first type MOS transistor being configured with an first type MOS body diode, the low-side first type MOS transistors being enabled by a timing signal to provide conduction through the low-side first type MOS transistors while bypassing conduction through the first type MOS body diode during a time window having a duration determined by voltage level crossings of the received voltage.

    EXTERNAL WIRELESS POWER TRANSFER COIL

    公开(公告)号:US20210346682A1

    公开(公告)日:2021-11-11

    申请号:US17246763

    申请日:2021-05-03

    Abstract: An external coil system for a transcutaneous energy transfer system (TETS), the external coil being configured to transfer energy sufficient to power and implantable blood pump. The system includes a housing containing the external coil, the housing includes a thermal insulating base, the external coil being partially disposed within the thermal insulating base and a thermally conductive plastic, the external coil being partially disposed within the thermally conductive plastic.

    Tissue conduction communication using ramped drive signal

    公开(公告)号:US11045654B2

    公开(公告)日:2021-06-29

    申请号:US16204172

    申请日:2018-11-29

    Abstract: A device, such as an IMD, having a tissue conductance communication (TCC) transmitter controls a drive signal circuit and a polarity switching circuit by a controller of the TCC transmitter to generate an alternating current (AC) ramp on signal having a peak amplitude that is stepped up from a starting peak-to-peak amplitude to an ending peak-to-peak amplitude according to a step increment and step up interval. The TCC transmitter is further controlled to transmit the AC ramp on signal from the drive signal circuit and the polarity switching circuit via a coupling capacitor coupled to a transmitting electrode vector coupleable to the IMD. After the AC ramp on signal, the TCC transmitter transmits at least one TCC signal to a receiving device.

    Telemetry extension cable
    25.
    发明授权
    Telemetry extension cable 有权
    遥测延长线

    公开(公告)号:US09035844B2

    公开(公告)日:2015-05-19

    申请号:US13896494

    申请日:2013-05-17

    Abstract: The invention of the disclosure is an extension cable to connect via telemetry, an external medical device in a non-sterile zone with a medical device that is within a sterile zone. The telemetry extension cable includes a cable having a length and comprising a conductor, a first RF antenna attached at one end of the cable and a second RF antenna attached at a second end of the cable, at least one of the first or second antennas configured to transmit and receive RF signals to and from an implantable medical device.

    Abstract translation: 本公开的本发明是通过遥测连接的延长电缆,在非无菌区域中的外部医疗装置与处于无菌区域内的医疗装置。 所述遥测延长电缆包括具有长度并包括导体的电缆,附接在所述电缆的一端的第一RF天线和附接在所述电缆的第二端的第二RF天线,所述第一或第二天线中的至少一个被配置 向可植入医疗设备发送和接收RF信号。

    TETS coil alignment conditions algorithm

    公开(公告)号:US12138441B2

    公开(公告)日:2024-11-12

    申请号:US17163740

    申请日:2021-02-01

    Abstract: A TETS having an external controller having a power source, a transmission coil in communication with the external controller, a receiving coil configured for transcutaneous inductive communication with the transmission coil, and an implantable controller in communication with the receiving coil and an implantable blood pump. The implantable controller has a battery configured to receive power from the receiving coil and the external controller is configured to categorize power transfer states based on predetermined thresholds of efficiency and power demand, and user display states (associated with optional configurable notifications) based on the power transfer states and predetermined temperature thresholds of the transmission coil.

    Method for power monitoring and dynamically managing power in a fully implanted LVAD system

    公开(公告)号:US12023480B2

    公开(公告)日:2024-07-02

    申请号:US17130197

    申请日:2020-12-22

    CPC classification number: A61M60/876 A61M60/508

    Abstract: In an implanted medical device system, an internal controller, external power transmitter and methods for monitoring and dynamically managing power in an implanted medical device system are disclosed. According to one aspect, an internal controller is configured to provide power to a motor of an implanted medical device, the power being drawn from at least one of an internal battery and an internal coil, the at least one of the internal battery and the internal coil providing a supplied voltage. The internal controller includes processing circuitry configured to switch to one of the internal battery, the internal coil and a combination of the internal battery and the internal coil, based on a comparison of the supplied voltage to a threshold.

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