Implantable electroacupuncture device for reducing hypertension
    47.
    发明授权
    Implantable electroacupuncture device for reducing hypertension 有权
    用于降低高血压的植入式电针装置

    公开(公告)号:US09327109B2

    公开(公告)日:2016-05-03

    申请号:US14446512

    申请日:2014-07-30

    Abstract: Disclosed is an implantable, coin-sized, self-contained, leadless electroacupuncture (EA) device having at least two electrode contacts attached to the surface of its housing. The electrodes include a central cathode electrode on a bottom side of the housing, and a circumferential anode electrode that surrounds the cathode electrode. In one embodiment, the anode annular electrode is a ring electrode placed around the perimeter edge of the coin-shaped housing. The EA device is adapted to be implanted through a very small incision, e.g., less than about 2-3 cm in length, directly adjacent to a selected acupuncture site known to moderate or affect a hypertension condition of a patient. Appropriate power management circuitry within the device allows a primary battery having a relatively high internal impedance to be used without causing unacceptable dips in battery voltage when the instantaneous battery current surges. Stimulation pulses are generated during a stimulation session that has a duration of T3 minutes and which is applied every T4 minutes. The duty cycle, or ratio of T3 to T4, is very low, not greater than 0.05. This low duty cycle, along with careful power management, allows the EA device to perform its intended function for several years.

    Abstract translation: 公开了一种植入式,硬币大小的独立的无引线电针(EA)装置,其具有附接到其壳体表面的至少两个电极触点。 电极包括在壳体的底侧上的中央阴极电极和围绕阴极电极的周向阳极电极。 在一个实施例中,阳极环形电极是围绕硬币形壳体的周边边缘放置的环形电极。 EA装置适于通过非常小的切口植入,例如长度小于约2-3厘米,直接与已知中度或影响患者高血压状况的所选择的针灸部位相邻。 器件内的合适的电源管理电路允许使用具有相对较高的内部阻抗的一次电池,而不会在瞬间电池电流骤升时导致电池电压的不可接受的下降。 在刺激会话期间产生刺激脉冲,持续时间为T3分钟,每T4分钟应用一次。 T3到T4的占空比或比例很低,不大于0.05。 这个低占空比,以及仔细的电源管理,允许EA设备执行其预期功能几年。

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