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Valencia, CA, United States

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.


Patent
Valencia Technologies | Date: 2014-07-30

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.


A method of treating hypertension in a patient includes 1) generating, by an electroacupuncture device implanted beneath a skin surface of the patient at an acupoint corresponding to a target tissue location within the patient, stimulation sessions at a duty cycle that is less than 0.05, wherein the duty cycle is a ratio of T


Patent
Valencia Technologies | Date: 2015-05-27

An implantable electroacupuncture device (IEAD) treats a disease or medical condition of a patient through application of stimulation pulses applied at a specified acupoint or other target tissue location at a very low duty cycle. In a preferred implementation, the IEAD is an implantable, coin-sized, self-contained, leadless device having at least two electrodes attached to an outside surface of its housing, with at least one electrode on the top or bottom surface of the housing functioning as a cathode, and at least one electrode on the perimeter edge of the housing functioning as an anode. The electrodes may be segmented to include an array of smaller cathodic or anodic electrodes, each of which may be selectively turned ON or OFF so as to provide a convenient mechanism for adjusting the density of the stimulus current flowing through the cathodic electrode surface area.


An Implantable ElectroAcupuncture Device (IEAD) treats cardiovascular disease through application of stimulation pulses applied at at least one of acupoints EX-HN1, BL14, HT7, HT5, PC6, ST36, LI11, LU7, and LU2. The IEAD comprises an implantable, coin-sized, self-contained, leadless electroacupuncture device having at least two electrodes attached to an outside surface of its housing. The device generates stimulation pulses in accordance with a specified stimulation regimen. Power management circuitry within the device allows a primary battery, having a high internal impedance, to be used to power the device. The stimulation regimen generates stimulation pulses during a stimulation session of duration T3 minutes applied every T4 minutes. The duty cycle, or ratio T3/T4 is very low, no greater than 0.05. The low duty cycle and careful power management allow the IEAD to perform its intended function for several years.

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