Meridian tester with pressure control and four-electrode detection functions

Abstract

The invention discloses a meridian tester with pressure control and four-electrode detection functions. The meridian tester comprises an auxiliary unit, a detection unit and a host, wherein the detection unit is connected with the auxiliary unit through a connecting cable; the host is in signal connection with the detection unit; the auxiliary unit is provided with at least two auxiliary electrodes, and the detection unit is provided with at least two auxiliary detection electrodes; wherein the detection unit comprises a shell and a reduction gear box fixedly arranged at one end in the shell, the reduction gear box is fixedly connected with direct current, and the reduction gear box is fixedly connected with a gear box output screw rod, a movable top block in threaded connection with the gear box output screw rod, and a pressurization spring fixedly connected to the movable top block; the connecting sliding block is fixedly connected with the pressurizing spring; the exploring electrode insulating rod is fixedly connected to the connecting sliding block; and the exploring electrode A1 and the exploring electrode A2 are fixedly connected to the exploring electrode insulating rod. According to the invention, the technical scheme and the calculation calibration method which are associated with each other are a rule mined after summarizing and analyzing a large amount of clinical data, and a mature electronic technology is integrated at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of meridian measuring instruments, and in particular to a meridian measuring instrument with pressure control and four-electrode detection. Background Art

[0002] Meridian syndrome differentiation is based on the physiology and pathology of meridians and their associated internal organs, and analyzes the clinical manifestations of meridians and their related internal organs under pathological conditions, so as to identify the location of the disease, the cause and pathogenesis, and its nature and characteristics, etc., to provide a basis for treatment. Meridian syndrome differentiation is based on the theory of meridians, and analyzes and synthesizes several symptoms and signs of the patient to determine which meridian, internal organ, or internal organ the disease belongs to, so as to further determine the cause of the disease, the nature of the lesion, and the pathological mechanism. It is a syndrome differentiation method that is an important part of Chinese medicine diagnosis.

[0003] Meridians are the channels for the flow of qi in the human body and the pathways for the occurrence and transmission of diseases. They are distributed throughout the body and run throughout the body. Qi and blood connect the internal organs and limbs, communicate up and down, inside and outside, and coordinate the various parts of the human body to complete various physiological activities. Meridians are reflected on the body surface. Various abnormal reactions will occur at the parts of the body surface where the meridians run, especially at the main acupoints where the qi gathers, also known as the original points.

[0004] From ancient times to the present, doctors have been using their sensory methods, supplemented by patients' self-reports, to evaluate abnormal conditions of patients' original acupoints, such as numbness, soreness, pain in the acupoints, abnormal sensitivity to cold and hot stimuli, skin color changes, desquamation, nodules, etc. This diagnostic process is highly subjective and there is no quantifiable objective detection method, which makes it uncertain in efficacy evaluation and diagnosis. The lack of objective scientific means has also affected the teaching and inheritance of this Chinese medicine dialectical technology.

[0005] With the development of electronic biotechnology, Japanese scholar Yoshio Nakako created the Ryodaoluo theory. Subsequently, China and many countries have carried out a lot of research on meridian and acupoint impedance technology, namely Ryodaoluo technology. Studies have shown that the impedance value of acupoint impedance, especially the impedance of the original acupoint, is closely related to the state of meridians. This has undoubtedly found a new path of modern science and technology for the objective development of meridian diagnosis.

[0006] The meridian measuring instrument is a medical device that assists Chinese doctors in conducting meridian diagnosis. Meridian diagnosis and four-diagnosis diagnosis are both important dialectical methods in Chinese medicine.

[0007] Although the impedance value of the original acupoints on the meridians can reflect the condition of the meridians, the detection results of the impedance of the original acupoints of the human body will be interfered by many factors, because the acupoints of the human body have very special electrical properties. So far, the academic community has not established a mathematical model of the electrical characteristics of the acupoints of the human body. From the perspective of impedance detection, the acupoints of the human body are not an ideal impedance detection body. When measuring impedance, the different pressures of the measuring electrodes, whether to measure with alternating current or direct current, the different frequencies of alternating current, different measuring voltages, different measuring currents, and the different skin moisture levels of the same patient at the same measuring site, etc., will affect the detection results. In addition, how to calculate the impedance values ​​of the original acupoints on each meridian to obtain the meridian dialectical results that conform to the theory of traditional Chinese medicine, all of which have become obstacles to the development of meridian measuring instruments as medical devices. Summary of the invention

[0008] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a meridian measuring instrument with pressure control and four-electrode detection. The interrelated technical solutions and calculation and calibration methods are the rules mined after summarizing and analyzing a large amount of clinical data, and mature electronic technology is integrated. In order to achieve the above-mentioned purpose and other advantages according to the present invention, a meridian measuring instrument with pressure control and four-electrode detection is provided, including:

[0009] An auxiliary unit, a detection unit connected to the auxiliary unit via a connection cable, and a host connected to the detection unit by signal;

[0010] At least two auxiliary electrodes are provided on the auxiliary unit, and at least two auxiliary detection electrodes are provided on the detection unit;

[0011] The detection unit includes a housing, a reduction gear box fixedly arranged at one end of the housing, a direct current fixed to the reduction gear box, a gear box output screw fixed to the reduction gear box, a movable top block threadedly connected to the gear box output screw, a pressure spring fixed to the movable top block, a connecting slider fixed to the pressure spring, a detection electrode insulating rod fixed to the connecting slider, and detection electrodes A1 and A2 fixed to the detection electrode insulating rod;

[0012] A gasket-type touch force sensor is located below the connecting slider and fixed to the housing, and a detection electrode outer ring is contact-connected to the gasket-type touch force sensor. In the present application, the auxiliary unit has two auxiliary electrodes, the detection unit has two detection electrodes, and there is an outer ring of detection electrodes outside the two detection electrodes, and the outer ring is connected to a force sensor that can sense the absolute detection force applied by the operator.

[0013] When in use, the person being tested (patient) holds the auxiliary unit, and the tester (doctor) holds the detection unit. According to the position of the original acupoint indicated on the small LCD screen on the detection unit, the detection electrodes A1 and A2 are pressed on the original acupoint to be tested. The pressing force sensed by the outer circle of the detection electrode must be within the allowable range indicated on the small LCD screen. Then press the button switch. After 15-20 seconds, the impedance detection of the original acupoint is completed. After completion, the small LCD screen will display the measured impedance value aXL(R) of the original acupoint, that is, the value before correction, where X is a number 1-12, which is one of the 12 original acupoints, and L / R is left or right.

[0014] After the impedance detection of one acupoint is completed, the small LCD screen will prompt the location of the next acupoint until all 24 (12X 2) acupoints are detected. After completion, the core processor (MCU) of the host will perform calculations, and after calculations, a bar graph of the twelve meridians will be displayed on the main LCD screen of the host, providing Chinese medicine doctors with auxiliary reference for meridian differentiation.

[0015] An insulating isolation gap is formed between the detection electrode A1 and the detection electrode A2. In this gap, there is no non-metallic insulating medium and only air insulation is relied on. This is to facilitate cleaning and prevent dirt, and to avoid leakage or short circuit between the two independent electrodes due to dirt.

[0016] Specifications of the pressure spring are: outer diameter 6mm, steel wire diameter 0.5mm, natural length 20mm, elastic coefficient 0.25N / mm. When the equipment is in use, the two detection electrodes of the detection unit have two working states of 2N and 3.5N relative pressing force on the acupoint skin.

[0017] 2N state: There is a pre-compression of 3mm in the initial position. When the detection electrodes 14 and 15 contact the skin and are pressed to be level with the outer circle, the displacement stroke A of the detection electrode is 5mm, so the total compression of the spring is 8mm (5+3), and the relative force of the detection electrode on the original acupoint skin is 2N.

[0018] 3.5N state: Based on the 2N mode, the output screw 3 of the gear box drives the moving top block 22 with internal threads to move. At this time, the spring 20 is compressed by another 6mm, that is, the relative force is increased by 1.5N.

[0019] The present invention proposes a set of interrelated technical solutions and calculation and calibration methods, making it a means to solve the many problems of meridian impedance detection mentioned above, and industrialize it into a medical device with complete functions for meridian auxiliary dialectics, namely: a meridian measuring instrument with detection force control and four-electrode detection. This set of interrelated technical solutions and calculation and calibration methods are the rules excavated after summarizing and analyzing a large amount of clinical data, and at the same time incorporate mature electronic technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1A schematic diagram of the three-dimensional structure of the meridian measuring instrument with pressure control and four-electrode detection according to the present invention;

[0021] Figure 2 A schematic diagram of the structure of an auxiliary unit of the meridian measuring instrument with pressure control and four-electrode detection according to the present invention;

[0022] Figure 3 It is a schematic structural diagram of the detection unit of the meridian measuring instrument with pressure control and four-electrode detection according to the present invention when it is not in contact with the skin;

[0023] Figure 4 It is a structural schematic diagram of the detection unit of the meridian measuring instrument with pressure control and four-electrode detection according to the present invention when the detection electrode contacts the skin with a contact force of 2N;

[0024] Figure 5 It is a schematic structural diagram of the detection unit of the meridian measuring instrument with pressure control and four-electrode detection according to the present invention when the detection electrode contacts the skin with a contact force of 3.5N;

[0025] Figure 6 A top view of the detection electrodes A1-14 and A2-15 of the meridian measuring instrument with pressure control and four-electrode detection according to the present invention;

[0026] Figure 7 It is a schematic structural diagram of a gasket-type touch force sensor of a meridian measuring instrument with pressure control and four-electrode detection according to the present invention;

[0027] Figure 8 A schematic diagram of a four-electrode detection structure of a meridian measuring instrument with pressure control and four-electrode detection according to the present invention;

[0028] Fig. 9 It is a bar graph of the impedance values ​​of the twelve meridians of the meridian measuring instrument with pressure control and four-electrode detection according to the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Introduction to Chinese medicine acupoints and meridians (also known as meridians):

[0031] Yuan points are the places where the vital energy of the internal organs passes and stays. Each of the twelve meridians has a Yuan point near the wrist and ankle joints, which together make up the twelve Yuan points, totaling 24. In clinical practice, Yuan points can be used to treat the lesions of the internal organs to which they belong, and the function and health status of the internal organs can also be inferred based on the changes in the reactions of Yuan points.

[0032] The twelve meridians are the main body of the meridian dialectics system, with the main characteristics of being consistent with the exterior and interior meridians and being associated with the corresponding viscera. They include the three Yin meridians of the hand (the hand Taiyin lung meridian, the hand Jueyin pericardium meridian, and the hand Shaoyin heart meridian), the three Yang meridians of the hand (the hand Yangming large intestine meridian, the hand Shaoyang triple burner meridian, and the hand Taiyang small intestine meridian), the three Yang meridians of the foot (the foot Yangming stomach meridian, the foot Shaoyang gallbladder meridian, and the foot Taiyang bladder meridian), and the three Yin meridians of the foot (the foot Taiyin spleen meridian, the foot Jueyin liver meridian, and the foot Shaoyin kidney meridian), in addition to the Ren meridian and the Du meridian, which are not covered by this patent.

[0033] The meridian acupoints specified by the measuring instrument of this application are shown in the following table:

[0034]

[0035]

[0036] Note: Yuan points correspond to the 12 meridians but are divided into left and right. Therefore, there are two Yuan points on the left and right sides of the same meridian, and a total of 24 Yuan points (12 x 2) are tested.

[0037] Reference Figure 1 , a meridian measuring instrument with pressure control and four-electrode detection, comprising:

[0038] An auxiliary unit, a detection unit connected to the auxiliary unit via a connection cable, and a host connected to the detection unit by signal;

[0039] At least two auxiliary electrodes are arranged on the auxiliary unit, and at least two auxiliary detection electrodes are arranged on the detection unit; the most characteristic feature of the measuring instrument is that the auxiliary unit has two auxiliary electrodes, the detection unit has two detection electrodes, and there is an outer ring of detection electrodes outside the two detection electrodes, and the outer ring is connected to a force sensor which can sense the absolute detection force applied by the operator.

[0040] When in use, the person being tested (patient) holds the auxiliary unit, and the tester (doctor) holds the detection unit. According to the position of the original acupoint indicated on the small LCD screen on the detection unit, the detection electrodes A1 and A2 are pressed on the original acupoint to be tested. The pressing force sensed by the outer circle of the detection electrode must be within the allowable range indicated on the small LCD screen. Then press the button switch. After 15-20 seconds, the impedance detection of the original acupoint is completed. After completion, the small LCD screen will display the measured impedance value aXL(R) of the original acupoint, that is, the value before correction, where X is a number 1-12, which is one of the 12 original acupoints, and L / R is left or right.

[0041] After the impedance detection of one acupoint is completed, the small LCD screen will prompt the location of the next acupoint until all 24 (12X 2) acupoints are detected. After completion, the core processor (MCU) of the host will perform calculations, and after calculations, a bar graph of the twelve meridians will be displayed on the main LCD screen of the host, providing Chinese medicine doctors with auxiliary reference for meridian differentiation.

[0042] like Figure 3-5 As shown, the detection unit includes a housing 8, a reduction gearbox 1 fixedly arranged at one end of the housing 8, a DC power 2 fixedly connected to the reduction gearbox 1, a gearbox output screw 3 fixedly connected to the reduction gearbox 1, a moving top block 22 threadedly connected to the gearbox output screw 3, a pressure spring 20 fixedly connected to the moving top block 22, a connecting slider 19 fixedly connected to the pressure spring 20, a detection electrode insulating rod 11 fixedly connected to the connecting slider 19, and detection electrodes A1-14 and A2-15 fixedly connected to the detection electrode insulating rod 11; a gasket-type touch force sensor 18 located below the connecting slider 19 and fixedly connected to the housing 8, and a detection electrode outer ring 13 abuttingly connected to the gasket-type touch force sensor 18. Position sensors a4, b5, a magnet 6 fixedly connected to the housing 8, and a position sensor PCB 7 fixedly connected to the moving top block 22 are fixedly connected to the side of the moving top block 22. The DC motor 2 drives the gearbox output screw 3 to rotate after being decelerated and torque-increased by the reduction gearbox 1; the gearbox output screw 3 rotates to drive the moving top block 22 with internal threads to move; the moving top block 22 moves to compress the pressure spring 20; when the moving top block 22 moves, the position sensor PCB 7 connected thereto moves together; The position sensor a-4 and the position sensor b-5 on 7 will also move accordingly; the two position sensors are patch type Hall switch sensors, and the distance h is 6mm; the position sensor and the magnetic steel 6 installed on the inner side of the shell work together to complete the stroke sensing, and the magnetic steel material is 4X4mm square neodymium iron boron; the gasket type touch force sensor fixing device 9 fixes the sensor fixing plate to the shell 8; 10 is the connection surface, that is, the outer ring of the non-metallic detection electrode and the sensor touch plate are connected in an interference and glue-coated tight fit; 11 is the detection electrode insulating rod, one end of the non-metallic detection electrode insulating rod is embedded with two detection electrodes A1-14 and A2-15 with leads welded by injection molding, and the other end is connected to the slider 19 to deform the pressure spring 20; 17 is the wiring hole in the detection electrode insulating rod, and two detection electrode wires welded to the lead welding hole 12 of the detection electrode A1 and the lead welding hole 16 of the detection electrode A2 are led out from this wiring hole.

[0043] The specifications of the pressure spring 20 are: outer diameter 6mm, steel wire diameter 0.5mm, natural length 20mm, elastic coefficient is 0.25N / mm. When the equipment is in use, the detection electrode A1-14 and the detection electrode A2-15 of the detection unit have two working states of 2N and 3.5N relative pressing force on the acupoint skin.

[0044] 2N state: There is a 3mm pre-compression in the initial position. When the detection electrodes A1-14 and A2-15 touch the skin and are pressed to be level with the outer circle, the displacement stroke A of the detection electrodes is 5mm, so the total compression of the spring is 8mm (5+3), and the relative force of the detection electrodes on the original acupoint skin is 2N.

[0045] 3.5N state: Based on the 2N mode, the output screw rod 3 of the gear box drives the movable top block 22 with internal threads to move. At this time, the pressure spring 20 is compressed by another 6mm, that is, the relative force is increased by 1.5N.

[0046] like Figure 6 As shown, the diameter C of the detection electrode A1-14 and the detection electrode A2-15 are both 3mm, and an insulating isolation gap is formed between the detection electrode A1-14 and the detection electrode A2-15. The width B of this isolation gap is 1mm, and there is no non-metallic insulating medium in this gap, and only air insulation is relied on. This is to facilitate cleaning and prevent dirt, and avoid leakage or short circuit of two independent electrodes due to dirt. The diameter D of the connection surface 10 of the detection electrode insulation rod 11 and the detection electrode is 6.7mm, and the outer diameter E of the detection electrode outer ring 13 is 10mm.

[0047] Further, such as Figure 2 As shown, the auxiliary unit includes an auxiliary electrode B2-300, an auxiliary electrode B1-400, an insulating isolation wall 200 disposed between the auxiliary electrode B2-300 and the auxiliary electrode B1-400, and an upper fixing cover 100 and a lower fixing cover 500 respectively fixed to both ends of the insulating isolation wall 200. The lower fixing cover 500 is provided with a connector hole 600 for the B1 electrode and a connector hole 800 for the B2 electrode. The upper fixing cover 100 and the lower fixing cover 500 are both fixed to the insulating isolation wall 200 by fixing screws 700. The upper fixing cover 100 and the insulating isolation wall 200 are both non-metallic brackets. The width of the insulating isolation wall 200 is 3 mm, and the surface of the insulating isolation wall 200 is higher than the surface of the auxiliary electrode B2-300 and the auxiliary electrode B1-400 to prevent the sweat or dirt from the hands of the test subject from invading, which would cause the insulation performance of the two independent auxiliary electrodes B2-300 and B1-400 to be reduced; the connector hole 600 of the B1 electrode and the connector hole 800 of the B2 electrode are the two connector holes, i.e., the connector socket parts, which correspond to the connector plugs of the two connecting cables respectively.

[0048] like Figure 7 As shown, the gasket-type touch force sensor 18 is a special sensor for detecting the force of the outer ring 13 of the detection electrode. The gasket-type touch force sensor 18 is a gasket-type force sensor with a through hole in the middle. There are four strain resistors inside the gasket-type touch force sensor 18. The strain resistors are bonded to the four cross-shaped strain beams of the sensor using a glass micro-melting process. Figure 6 As shown in the figure, 60 is a touch disk, that is, a surface with touch force sensitivity. The relative force between the touch disk 60 and the fixed disk 40 will cause the strain gauge in the sensor to deform, thereby outputting an electrical signal; the function of the middle through hole 70 is to allow the detection electrode insulating rod to pass through the gasket type touch force sensor 18; 80 is a connecting groove, which is used for interference fit and glue-coated tight connection with the outer ring of the non-metallic detection electrode.

[0049] Example 1

[0050] Test Description

[0051] Requirements for the detection signal: The open-circuit voltage effective value of the detection power supply is specified to be 12V, the detection current is a constant current source, and the current effective value is 200uA.

[0052] When detecting in the DC mode, one electrode in the hand-held auxiliary unit is the positive electrode of the detection power supply, and one electrode in the detection unit is the negative electrode of the detection power supply.

[0053] The measured impedance values ​​of the two original points need to calculate their mathematical average to make them one. The general mathematical formula is aX=(aXL+aXR) / 2, where X is a number 1-12, which is one of the 12 original points, and L / R is left and right.

[0054] The detection process of a single Yuan acupoint needs to go through three states (taking the left Hegu acupoint as an example):

[0055] In the first state, under the conditions of the relative force of the detection electrode being 2N, the absolute force being 1.5-2.5N, and the measuring signal being 100Hz AC, the detection is conducted at the left Heguyuan acupoint for 5 seconds, and the average impedance value within 5 seconds is recorded as R1.

[0056] In the second state, under the conditions that the relative force of the detection electrode is 3.5N, the absolute force is 1.5-2.5N, and the measurement signal is DC, the detection is performed at the left Heguyuan point for 5 seconds, and the average impedance value within 5 seconds is recorded as R2.

[0057] In the third state, under the conditions that the relative force of the detection electrode is 2N, the absolute force is 1.5-2.5N, and the measuring signal is 10Hz AC, the detection is performed at the left Heguyuan point for 5 seconds, and the average impedance value within 5 seconds is recorded as R3.

[0058] The impedance value a4L of the left Hegu point is calculated, a4L = 0.25R1 + 0.5R2 + 0.25R3, where the coefficient 0.25 before R1, the coefficient 0.5 before R2 and the coefficient 0.25 before R3 are all weight coefficient values ​​obtained through experiments, expressed in the mathematical formula: aXL(R) = 0.25R1 + 0.5R2 + 0.25R3

[0059] Note 1: The left value cannot be directly used as an auxiliary basis for the diagnosis of the large intestine meridian condition. The right impedance value must be averaged and corrected. The correction method is described below.

[0060] Note 2: The voltage conditions for the above three states during detection are: the open circuit voltage effective value is specified as 12V, the detection current is a constant current source, and the current effective value is 200uA.

[0061] The outer ring 13 of the detection electrode is connected to a gasket-type force sensor 18, wherein the absolute pressing force is an absolute external force applied by the tester to the original acupoint of the testee through the outer ring of the detection electrode. One end of the non-metallic outer ring of the detection electrode contacts the skin at the original acupoint of the testee, and the other end is connected to a gasket-type force sensor, and the absolute pressing force value can be displayed in real time on the LCD screen.

[0062] This measuring instrument stipulates that during the impedance detection of the original point, the absolute pressing force controlled by the operator must be maintained between 1.5-2.5N. All algorithm formulas and parameter corrections of the measuring instrument are also based on this core parameter. After the signal of the gasket force sensor connected to the outer ring is amplified and processed, the absolute force value can be displayed in real time on the small LCD screen of the detection unit, and there are under-force and over-force prompts. The relative pressing force is a relatively constant force applied by the detection electrode through the spring inside the detection unit. This force is not affected by the user's pressing force, and is 2N and 3.5N respectively. Three different detection signals of 100Hz AC, DC and 10Hz AC are used as the detection voltage source. The open-circuit effective value of the detection voltage is constant at 12V. The detection is carried out in a constant current mode and the constant current effective value is stipulated to be 200uA.

[0063] like Figure 8As shown, the present application adopts a four-electrode method for detection. In the figure, r1, r2, r3, and r4 are uncertain skin contact resistances, RX is the original acupoint impedance to be detected, A is a detection unit composed of two electrodes A1 and A2, and B is an auxiliary unit composed of two electrodes B1 and B2. A1, A2, B1, and B2 form four electrodes, and the detected power supply signal, i.e., the constant current signal, is applied to the measured part by electrodes A1 and B1, and the detection sampling is completed by electrodes A2 and B2. Electrodes A2 and B2 are connected to the A / D sampler. Because the input impedance of the A / D collector is very high, the input current is almost close to zero, so the measurement error caused by contact resistances r1 and r2 can be ignored. The signal flowing through contact resistances r3 and r4 is a constant current signal, and the contact resistance will not cause measurement errors. The electrical principle of the four-pole method belongs to a mature technology and will not be repeated here.

[0064] Note: The A / D device used in this project is 24-bit.

[0065] There are three modes of detection power supply connected to the MCU, namely AC100Hz, DC and AC10Hz. The effective value of the open circuit voltage of these three modes is 12V, and the output is a constant current of 200 microamperes. The output switching is controlled by the MCU, and different relative forces of detection electrodes are used to complete the detection of the impedance of each detection point, that is, a certain original acupoint.

[0066] Meridian impedance dialectical calculation method and correction table

[0067] 1) The impedance values ​​of a certain acupoint directly measured under three different voltage conditions, R1, R2, and R3, are weighted and calculated to obtain aXL or aXR, where X is a number 1-12, which is one of the 12 acupoints, and L / R is left / right.

[0068] aXL(R)=0.25R1+0.5R2+0.25R3

[0069] After obtaining the 24 primary acupoint impedance values, i.e., a1L-a12L and a1R-a12R, the software in the device will calculate according to the following steps and methods:

[0070] 2) Calculate the left and right average values ​​of a specific acupoint, a = (aL + aR) / 2

[0071] After calculation, the impedance values ​​of the 24 original points divided into left and right become 12 impedance values ​​of the original points that are not divided into left and right, namely a1-a12;

[0072] 3) Calculate the mathematical average ap of the 10 impedance values ​​a1-a10, where a11 and a12 are not included in the average calculation;

[0073] 4) Find the value closest to the calculated ap value in the average value ap in the impedance correction value table, select the corresponding row, and correct the impedance values ​​of the 10 original points according to the addition and subtraction requirements in the table to obtain A1-A10;

[0074] 5) The values ​​of a11 and a12 do not need to be corrected, that is, a11 = A11, a12 = A12;

[0075] 6) Correction table of Yuan acupoint impedance value

[0076]

[0077]

[0078] Note: The "-" in the mark means the measured value a minus the correction number, and the "+" means the measured value a minus the correction number.

[0079] The value a plus the correction number

[0080] Host display function

[0081] When the test is completed, the LCD screen on the main unit will display a bar graph of the impedance values ​​of the twelve meridians. The highest and lowest meridians in the bar graph are the possible "symptoms" prompted by the instrument. The impedance values ​​of the original points corresponding to the bar graph are the corrected values. Fig. 9 . Fig. 9 In the middle is a bar graph of the impedance values ​​of the twelve meridians. The meridian auxiliary diagnosis conclusion given is: the gallbladder meridian is higher than the average meridian activity, which is true, and the large intestine meridian is lower than the average meridian activity, which is false.

[0082] The corrections are shown in the following table:

[0083]

[0084] Note: 1. The a value in the example is the average value of (aL+aR) / 2, that is, the average value of the impedance of the two original points on the same meridian.

[0085] 2. The value closest to the actual average value ap=244.5 is 240 ohms. Select this row to get the correction value A1-A10;

[0086] 3. The impedance value of a single acupoint is obtained by weighted calculation under three different voltages and different relative pressure conditions. Since it has been explained in detail in the previous text, this calculation part is not given in the example.

[0087] The number of devices and processing scales described here are used to simplify the description of the present invention, and the application, modification and variation of the present invention will be obvious to those skilled in the art.

[0088] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and implementation modes. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A meridian measuring instrument with pressure control and four-electrode detection, characterized in that: include: An auxiliary unit, a detection unit connected to the auxiliary unit via a connection cable, and a host connected to the detection unit by signal; At least two auxiliary electrodes are provided on the auxiliary unit, and at least two auxiliary detection electrodes are provided on the detection unit; The detection unit comprises a housing (8), a reduction gear box (1) fixedly arranged at one end of the housing (8), a direct current (2) fixedly connected to the reduction gear box (1), a gear box output screw (3) fixedly connected to the reduction gear box (1), a movable top block (22) threadedly connected to the gear box output screw (3), a pressure spring (20) fixedly connected to the movable top block (22), a connecting slider (19) fixedly connected to the pressure spring (20), a detection electrode insulating rod (11) fixedly connected to the connecting slider (19), and a detection electrode A1 (14) and a detection electrode A2 (15) fixedly connected to the detection electrode insulating rod (11); A gasket-type touch force sensor (18) located below the connecting slider (19) and fixed to the housing (8), and a detection electrode outer ring (13) abuttingly connected to the gasket-type touch force sensor (18).

2. A meridian measuring instrument with pressure control and four-electrode detection as claimed in claim 1, characterized in that: A position sensor a (4), a position sensor b (5), a magnetic steel (6) fixed to the housing (8), and a position sensor PCB (7) fixed to the moving top block (22) are fixedly connected to the side surface of the moving top block (22).

3. A meridian measuring instrument with pressure control and four-electrode detection as claimed in claim 2, characterized in that: An insulating isolation gap is formed between the detection electrode A1 (14) and the detection electrode A2 (15).

4. A meridian measuring instrument with pressure control and four-electrode detection as claimed in claim 1, characterized in that: The detection unit includes a first state, a second state and a third state during the detection process. In the first state, the relative force on the detection electrode A1 (14) and the detection electrode A2 (15) is 2N, the absolute force is 1.5-2.5N, and the detection signal is 100Hz AC. The detection is performed at one side of the acupuncture point for 5 seconds, and the first impedance average value within 5 seconds is calculated.

5. A meridian measuring instrument with pressure control and four-electrode detection as claimed in claim 4, characterized in that: In the second state, the relative force on the detection electrode A1 (14) and the detection electrode A2 (15) is 3.5N, and the absolute force is 1.5-2.5N. Under the condition that the measured signal is DC, the acupuncture points on one side are tested for 5 seconds, and the second impedance average value within 5 seconds is calculated.

6. A meridian measuring instrument with pressure control and four-electrode detection as claimed in claim 4, characterized in that: In the third state, the relative force on the detection electrode A1 (14) and the detection electrode A2 (15) is 2N, the absolute force is 1.5-2.5N, and the measurement signal is 10Hz AC. The acupuncture points on one side are tested for 5 seconds, and the third impedance average value within 5 seconds is calculated.

7. A meridian measuring instrument with pressure control and four-electrode detection as claimed in claim 6, characterized in that: The impedance value of an acupuncture point is obtained by calculating the first impedance average value, the second impedance average value and the third impedance average value, and the final impedance value is obtained by averaging the impedance values ​​of the acupuncture points on the other side and correcting them.

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