Electrical stimulation output device for detecting electrotherapy equipment

Abstract

The utility model relates to an electrical stimulation output device for detecting electrotherapy equipment, which comprises an electrode clamp and a detector, and the electrode clamp is electrically connected with the detector through a lead. A touch display is arranged on a shell of the detector, and an MCU (Microprogrammed Control Unit) main control circuit, a calibration mechanism and a multi-channel voltage acquisition circuit are arranged in the detector; the electrode clamp is connected with the input end of the calibration mechanism, the input end of the multi-channel voltage acquisition circuit is connected with the output end of the calibration mechanism, the MCU main control circuit is connected with the touch display in series, the input end of the MCU main control circuit is connected with the output end of the multi-channel voltage acquisition circuit, and the output end of the MCU main control circuit is connected with the input end of the calibration mechanism. As an instrument for a user side to detect the electrotherapy equipment, the electrical stimulation output device for detecting the electrotherapy equipment has the advantages of being simple in structure, low in cost, convenient to use, low in requirement for conditions of operators and the like, and a user can conveniently detect whether the electrotherapy equipment runs normally or not before using the electrical stimulation output device.

Description

Technical Field

[0001] This utility model relates to the field of detection technology and equipment, specifically to an electrical stimulation output device for detecting electrotherapy equipment. Background Technology

[0002] Electrotherapy is an important component of modern medicine, a medical method used for prevention, healthcare, treatment, and rehabilitation. Specific treatment methods mainly include direct current therapy, direct current iontophoresis, low-frequency pulse electrotherapy, medium-frequency pulse electrotherapy, high-frequency electrotherapy, and electrostatic therapy. Different types of current have different main physiological effects on the human body, including altering ion distribution, regulating bodily functions, reducing inflammation and edema, stimulating tissue regeneration, relieving pain, and regulating the central nervous system.

[0003] Existing electrotherapy equipment mainly uses electrode pads for output, which has the following shortcomings:

[0004] (1) Regarding product use, during use, there may be poor contact between the electrode pads and the treatment area or the patient may not feel anything.

[0005] (2) In terms of product testing, the instruments used for testing electrotherapy equipment are mostly precision laboratory equipment, which are bulky and require professional personnel to operate.

[0006] (3) In terms of testing costs, the testing equipment in the laboratory is expensive, which is not conducive to the use of electrotherapy equipment by users and units. Utility Model Content

[0007] The technical problem to be solved by this utility model is to overcome the shortcomings of existing electrotherapy equipment product testing, such as the inability to achieve convenient pre-use testing, high requirements for testing equipment and personnel, and high cost of testing equipment. This utility model provides an electrical stimulation output device for testing electrotherapy equipment. As an instrument for users to test electrotherapy equipment, it has the advantages of simple structure, low cost, convenient use and low requirements for operator conditions, so that users can easily check whether the electrotherapy equipment is operating normally before use.

[0008] This testing device for the electrical stimulation output of an electrotherapy device includes a pair of electrode clips for connecting the two electrodes of the electrotherapy device under test and a detector for testing the output of the electrotherapy device. The electrode clips and the detector are electrically connected via wires. The detector housing is equipped with a touch display, and the detector internally houses an MCU main control circuit, a calibration mechanism, and a multi-channel voltage acquisition circuit. The electrode clips are connected to the input terminal of the calibration mechanism, the input terminal of the multi-channel voltage acquisition circuit is connected to the output terminal of the calibration mechanism, the MCU main control circuit is serially connected to the touch display, the input terminal of the MCU main control circuit is connected to the output terminal of the multi-channel voltage acquisition circuit, and the output terminal of the MCU main control circuit is connected to the input terminal of the calibration mechanism.

[0009] Specifically, the calibration mechanism includes a potentiometer, a micro motor, and a drive linkage. The controller of the micro motor is connected to the output terminal of the MCU main control circuit. The output shaft of the micro motor is connected to the brush knob of the potentiometer through the drive linkage. The input terminal of the potentiometer is connected to the electrode clip, and the output terminal of the potentiometer is connected to the input terminal of the multi-channel voltage acquisition circuit.

[0010] Furthermore, the potentiometer has an adjustment range of 500Ω-10kΩ.

[0011] Specifically, the calibration mechanism includes multiple relays connected in parallel and resistors connected in series.

[0012] The optimization also includes a wireless communication module, which is serially connected to the MCU main control circuit.

[0013] This utility model provides an electrical stimulation output device for testing electrotherapy equipment, overcoming the shortcomings of existing electrotherapy equipment product testing, such as the inability to perform convenient pre-use testing, high requirements for testing equipment and personnel, and high testing equipment costs. Its beneficial effects are as follows:

[0014] As an instrument for users to test electrotherapy equipment, it has the advantages of simple structure, low cost, convenient use and low requirements for operator qualifications, making it easy for users to check whether the electrotherapy equipment is operating normally before use. Attached Figure Description

[0015] The following description, in conjunction with the accompanying drawings, further illustrates the electrical stimulation output device for detecting electrotherapy equipment according to this utility model:

[0016] Figure 1 This is a wireframe diagram illustrating the logic structure and connection principle of the electrical stimulation output device of this electrotherapy testing equipment;

[0017] Figure 2 This is a wireframe diagram illustrating the logic structure and connection principle of implementation methods 1 and 2 of the electrostimulation output device of this electrotherapy testing equipment.

[0018] Figure 3 A schematic diagram of the planar structure of the calibration mechanism described in Embodiment 2 of this electrotherapy device's electrical stimulation output device;

[0019] Figure 4 A wireframe diagram illustrating the logic structure and connection principle of the electrical stimulation output device of this electrotherapy equipment in embodiment 4.

[0020] Figure 5 The circuit diagram of the signal acquisition, input, processing, and output path of the electrostimulation output device of this electrotherapy equipment is shown.

[0021] In the picture:

[0022] 1-The electrotherapy device under test; 11-Electrode;

[0023] 2-Electrode clips;

[0024] 3-Detector; 31-Touch display; 32-MCU main control circuit; 33-Calibration mechanism; 34-Multi-channel voltage acquisition circuit; 35-Wireless communication module; 331-Polypotentiometer; 332-Micro motor; 333-Drive linkage. Detailed Implementation

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0026] In the description of this utility model, it should be understood that the terms "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] The present invention will be further described below with specific embodiments, but the scope of protection of the present invention is not limited to the following embodiments.

[0028] Implementation method 1: such as Figure 1 As shown, the electrostimulation output device of this testing electrotherapy equipment includes a pair of electrode clips 2 for connecting the two electrodes 11 of the electrotherapy equipment 1 under test and a detector 3 for testing the output of the electrotherapy equipment 1. The electrode clips 2 and the detector 3 are electrically connected by wires. The detector 3 has a touch display 31 on its outer shell and an MCU main control circuit 32, a calibration mechanism 33, and a multi-channel voltage acquisition circuit 34 inside the detector 3. The electrode clips 2 are connected to the input terminal of the calibration mechanism 33, the input terminal of the multi-channel voltage acquisition circuit 34 is connected to the output terminal of the calibration mechanism 33, the MCU main control circuit 32 is serially connected to the touch display 31, the input terminal of the MCU main control circuit 32 is connected to the output terminal of the multi-channel voltage acquisition circuit 34, and the output terminal of the MCU main control circuit 32 is connected to the input terminal of the calibration mechanism 33.

[0029] Implementation method 2: such as Figure 2 ,3 As shown, the calibration mechanism 33 of the electrostimulation output device of this electrotherapy testing equipment includes a potentiometer 331, a micro motor 332, and a drive linkage 333. The controller of the micro motor 332 is connected to the output terminal of the MCU main control circuit 32. The output shaft of the micro motor 332 is connected to the brush knob of the potentiometer 331 through the drive linkage 333. The input terminal of the potentiometer 331 is connected to the electrode clip 2, and the output terminal of the potentiometer 331 is connected to the input terminal of the multi-channel voltage acquisition circuit 34. The adjustment range of the potentiometer 331 is 500Ω-10kΩ. The remaining structures and components are as described in Embodiment 1 and will not be repeated.

[0030] Implementation Method 3: The calibration mechanism 33 of the electrostimulation output device of this electrotherapy testing equipment includes multiple parallel relays and resistor series branches. By using multiple relays and resistor branches instead of potentiometers, the relays can be directly controlled by the MCU main control circuit to achieve the selection of different resistors, eliminating the need for mechanical structures in the equipment and enabling faster calibration. The remaining structures and components are as described in Implementation Method 1 and will not be repeated.

[0031] Implementation method 4: such as Figure 4 As shown, the electrostimulation output device of this electrotherapy testing equipment also includes a wireless communication module 35, which is serially connected to the MCU main control circuit 32. Remote control and data monitoring are achieved through wireless data transmission with the MCU main control circuit. The remaining structures and components are as described in Embodiment 1 and will not be repeated.

[0032] During operation: Connect the electrode clips to the two electrodes of the electrotherapy device under test. After connecting the electrotherapy device to the testing device, turn off the electrotherapy device and turn on the testing device. Input commands to the MCU main control circuit using the touch screen. The MCU main control circuit controls the calibration mechanism to perform calibration. The process involves the MCU main control circuit outputting a signal to a micro motor, which drives the subsequent drive linkage to adjust the potentiometer brush knob's direction and rotation angle, ultimately changing the potentiometer resistance. When the result displayed on the touch screen is 0mA, the calibration is complete. Turn on the electrotherapy device to allow current to flow through the electrodes, electrode clips, potentiometer, and electrode clips to form a path, creating a potential difference between the two output terminals of the potentiometer. Figure 5As shown, the multi-channel voltage differential acquisition circuit collects the potential difference signal and sends it to the MCU main control circuit for analog-to-digital conversion. The resulting detection is then displayed on the touch screen. The output intensity of the electrotherapy device is adjusted. According to the electrotherapy device output standard, the effective value of the output current of the two electrodes should not exceed 100mA, let's call it value z; the potentiometer resistance is 500Ω-10kΩ, let's call it value x; the multi-channel voltage differential acquisition circuit uses a 12-bit precision ADC, and the acquired potentiometer output values ​​are y1 and y2. After processing by the MCU main control chip, the final result is output to the touch screen. If the display result on the touch screen changes with the output intensity of the electrotherapy device, it proves that the electrotherapy device output is valid; otherwise, it is invalid. This is used to determine whether the electrotherapy device is malfunctioning. The MCU operation rules are as follows:

[0033] z = (v1 - v3) / x Equation 1

[0034] v1=v2*(R1+R2) / R2 Equation 2

[0035] v3 = v4 * (R3 + R4) / R4 (Equation 3)

[0036] v2 = 3.3 * y1 / 2^12 (Equation 4)

[0037] v4 = 3.3 * y² / 2^12 (Equation 5)

[0038] From formulas 1 to 5, the effective value z of the current output by the electrotherapy device under test can be obtained as follows:

[0039]

[0040] in, Figure 3 In the circuit, the resistors R1, R2, R3, and R4 are selected to satisfy R1 / R2 = 47 / 3 and R3 / R4 = 47 / 3; y1 and y2 are... Figure 2 The digital quantity acquired by the ADC chip, x, has a value range of 500Ω-10kΩ.

[0041] This testing device for the electrical stimulation output of electrotherapy equipment overcomes the shortcomings of existing electrotherapy equipment testing, such as the inability to perform convenient pre-use testing, high requirements for testing equipment and personnel, and high testing equipment costs. As an instrument for users to test electrotherapy equipment, it has the advantages of simple structure, low cost, convenient use, and low requirements for operator qualifications, making it easy for users to check whether the electrotherapy equipment is operating normally before use.

[0042] The above description illustrates the main features, basic principles, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments or examples described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments or examples should be considered exemplary and not restrictive. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An electrical stimulation output device for detecting an electrical therapy device, characterized by: The electrode clamp (2) is electrically connected with the detector (3) through a lead wire. The detector (3) is provided with a touch display (31) on the shell, and the inside of the detector (3) is provided with an MCU main control circuit (32), a calibration mechanism (33) and a multi-channel voltage acquisition circuit (34); the electrode clamp (2) is connected with the input end of the calibration mechanism (33), the input end of the multi-channel voltage acquisition circuit (34) is connected with the output end of the calibration mechanism (33), the MCU main control circuit (32) is serially connected with the touch display (31), the input end of the MCU main control circuit (32) is connected with the output end of the multi-channel voltage acquisition circuit (34), and the output end of the MCU main control circuit (32) is connected with the input end of the calibration mechanism (33).

2. The electrical stimulation output device of claim 1, wherein: The calibration mechanism (33) comprises a potentiometer (331), a micro motor (332) and a driving connecting rod (333), the controller of the micro motor (332) is connected with the output end of the MCU main control circuit (32), the output shaft of the micro motor (332) is connected with the brush knob of the potentiometer (331) through the driving connecting rod (333), the input terminal of the potentiometer (331) is connected with the electrode clamp (2), and the output terminal of the potentiometer (331) is connected with the input end of the multi-channel voltage acquisition circuit (34).

3. The electrical stimulation output device of claim 2, wherein: The adjustment range of the potentiometer (331) is 500Ω-10kΩ.

4. The apparatus of claim 1, wherein: The calibration mechanism (33) comprises a plurality of parallelly connected relays and resistance series branches.

5. An electrical stimulation output device for testing an electrotherapy device according to claim 3 or 4, characterised in that: The wireless communication module (35) is serially connected with the MCU main control circuit (32).

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