Focused power transfer for implantable medical device

    公开(公告)号:US10355512B2

    公开(公告)日:2019-07-16

    申请号:US15212605

    申请日:2016-07-18

    Abstract: A rechargeable cell of an implantable medical device is recharged by an external charging unit that includes a transmitting coil configured to emit an electromagnetic field and a near-field focusing plate having a subwavelength structure pattern that focuses the emitted electromagnetic field to a focal pattern. The implantable medical device includes a housing having a window of an electromagnetically transparent material and a receiving coil enclosed by the housing. The receiving coil extends adjacent to and is aligned with the window. The rechargeable cell is enclosed by the housing and is configured to be charged by current induced in the receiving coil when the receiving coil is exposed to the focal pattern. In some examples, the near-field focusing plate is configured to produce the focal pattern to have a size that is less than an outer dimension of the window and a focal length from the near-field focusing plate that at least reaches the window.

    FOCUSED POWER TRANSFER FOR IMPLANTABLE MEDICAL DEVICE
    5.
    发明申请
    FOCUSED POWER TRANSFER FOR IMPLANTABLE MEDICAL DEVICE 审中-公开
    用于可植入医疗器械的聚焦电力传输

    公开(公告)号:US20170025888A1

    公开(公告)日:2017-01-26

    申请号:US15212605

    申请日:2016-07-18

    Abstract: A rechargeable cell of an implantable medical device is recharged by an external charging unit that includes a transmitting coil configured to emit an electromagnetic field and a near-field focusing plate having a subwavelength structure pattern that focuses the emitted electromagnetic field to a focal pattern. The implantable medical device includes a housing having a window of an electromagnetically transparent material and a receiving coil enclosed by the housing. The receiving coil extends adjacent to and is aligned with the window. The rechargeable cell is enclosed by the housing and is configured to be charged by current induced in the receiving coil when the receiving coil is exposed to the focal pattern. In some examples, the near-field focusing plate is configured to produce the focal pattern to have a size that is less than an outer dimension of the window and a focal length from the near-field focusing plate that at least reaches the window.

    Abstract translation: 可植入医疗装置的可再充电电池由包括被配置为发射电磁场的发射线圈和具有将发射的电磁场聚焦到焦点图案的亚波长结构图案的近场聚焦板的外部充电单元再充电。 可植入医疗装置包括具有电磁透明材料的窗口和由壳体包围的接收线圈的壳体。 接收线圈与窗口相邻并且与窗口对齐地延伸。 可充电电池被壳体包围,并且被配置为当接收线圈暴露于焦点图案时由在接收线圈中感应的电流充电。 在一些示例中,近场聚焦板被配置为产生焦点图案以具有小于窗口的外部尺寸的尺寸和来自至少到达窗口的近场聚焦板的焦距。

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