This paper mainly discusses the design of a portable physical health diagnosis and treatment instrument based on the theoretical basis of the weak electrical phenomenon caused by the cellular activities of human muscles, nerves, tissues and organs. The design scheme includes the whole process of circuit principle design, component selection and debugging of the diagnosis and treatment instrument.
First, the principle and use of health diagnosis and treatment instrument
The diagnosis instrument uses a probe to detect the relevant acupoints in the body, and judges whether there is a disease in an organ of the body through the "stinging" feeling of the relevant acupoint, and can perform auxiliary treatment under the "treatment" state.
When using, first adjust the test treatment current. Relatively fixed to a probe, pinched on the hand or specially made a soft "ear plug" probe cover, put it on the back and stuff it in the ear, then put another probe on the "Shaoyang hole", and Adjusting the potentiometer in the circuit increases the current until the tester has a noticeable tingling sensation. At this point, the test treatment current has been adjusted. Then, slide the probe at the "Shaoyang Point" on the rest of the body surface. When contact with the acupuncture points, the high-frequency oscillating circuit starts to oscillate due to the low resistance, and the speaker emits “howlingâ€. If the internal organs have lesions, the conductivity at the corresponding acupoints will increase greatly, and the high-frequency oscillating circuit will flow through. "Big" current, at this time, not only the speaker sound becomes sharp, but also the "stinging" feeling at the acupuncture point and the ear where the "large" current is felt, which is a positive point. According to the acupoint distribution map (see Table 1), it can be known which organ of the body is in poor health.
Second, the circuit principle
According to the characteristics of the acupoints of the human body, the conductivity is lower than that of the surrounding skin. Using a high-frequency oscillating circuit, supplemented by some peripheral circuits, and adding two small probes to contact with the human body, a "disease diagnosis and treatment" circuit can be formed. The most basic part of the circuit is a batch oscillator whose oscillation frequency is controlled by the resistance between the "fixed probe" and the "hole probe", as shown in Figure 1.
The circuit is mainly composed of two parts: a timing circuit composed of a timer 555 and its peripheral circuits, and a high frequency oscillation circuit composed of R0 to R2, C1 to C4, VQ1 and a high frequency transformer T. The working principle of the timing circuit is relatively simple and will not be described in detail here. The following is a brief introduction to the high frequency oscillation circuit.
When switch K1 is closed and K2 is placed in position 2, the circuit is in a diagnostic state. The power supply first charges the capacitors C1 and C3 respectively. When the anode potential of C1 and C3 reaches the corresponding potential, VQ1 is turned on; at this time, C2 is charged, and C1 starts to discharge. When C2 is charged to a certain potential, VQ1 is turned off, C2 and C3 are discharged through the high-frequency transformer T, and the power supply charges the capacitors C1 and C3 again, and VQ1 is turned on again. Due to the charge and discharge of C2 and C3, a high-frequency current is coupled to the secondary side of the high-frequency transformer, and the human body is flowed through the two probes through C4 and R0. When the two probes are in contact with the non-acupoint skin of the human body, the probe asks for a large resistance value, and the current flowing through is small, and the human body has no "stinging" feeling. When the probe is combined with the acupoint, the electrical resistance between the "fixed probe" and the "cavity probe" drops significantly, and the oscillating current flowing through the human body is significantly increased. The lower the resistance of the "fixed probe" and the "hole probe", the higher the oscillation frequency, the larger the oscillating current, and the stronger the tingling feeling. According to the strength of the tingling sensation and the position of the acupoints, it is judged whether there is a lesion in the corresponding organs of the body.
During treatment, the switch K2 is placed in position 1, the probe contacts the corresponding acupoint, and the high-frequency current is explored to flow to the human body. Repeat the stimulation of the corresponding acupuncture points to achieve therapeutic purposes. As seen from the schematic diagram, at this time, the timer 555 operates, and its action determines the time of the stimulation of the acupuncture points. Every time it arrives, it will stimulate a "treatment".
Third, component selection and debugging
The diagnosis and treatment circuit of this disease is not complicated, but component selection and debugging is a rather cumbersome process. How to make the circuit start to vibrate at the acupuncture point of the human body? How to create a needle sensation at the acupuncture point? These are the key to eliminating misdiagnosis. After repeated experiments, the author finally determined the most suitable parameters of each component in the circuit. In order to adapt to different people and different external environment changes (such as ambient temperature, humidity, different people's sensitivity to pain, etc.), an adjustable resistor is specially configured in the circuit to adjust the circuit current. VQ1 selects 9013, and can also use 3DG6, 3DGl2A and other low-power high-frequency triodes. All other triodes use 9014, or 3AX21, 3AX31. The transformer uses the V309 or other types of transistor radio output transformers. The smaller the size of the speaker, the better. Generally, a permanent magnet type speaker with a diameter of 20 to 30 mm or a buzzer can be used directly. A copper tube with a diameter of about 10 to 15 mm and a length of 10 mm is used as a "fixed probe". Use a multi-meter-sized metal pen holder as a “cavity probeâ€. Note that there is an insulating sleeve outside the “cavity probe†for the diagnostician to hold. There are no special requirements for resistors and capacitors, as long as their nominal values ​​correspond to the calibration values ​​in the figure.
Carbon fiber heating element
Such products are made of carbon fiber for the heating of the basic material made of tubular heating element, the use of reflective surface heat. The overall type of straight barrel and rectangular floor type: straight through the general use of single tube fever, the body can automatically rotate for the entire room heating. Turn on the power after the heating rate is surprisingly fast, in 1 to 2 seconds when the body has been hot, 5 seconds surface temperature up to 300-700 degrees, power in the 600 ~ 1200W adjustable. Rectangular floor type with double tube heat, you can floor or wall use, power is relatively large, in the 1800 ~ 2000W or so. In addition to heating function, these products can also play the effect of health care therapy. When the heating body heating can produce 765.9W / M of infrared radiation, the equivalent of a spectrum physiotherapy instrument.
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