Pelvic floor muscle therapeutic instrument circuit capable of preventing electrode from falling off

Abstract

The utility model provides a pelvic floor muscle therapeutic instrument circuit capable of preventing an electrode from falling off, which comprises a main control circuit and an electrode falling off detection circuit connected with the main control circuit, the electrode falling off detection circuit is used for being connected with an electrode, and the main control circuit detects whether the electrode falls off or not through a divider resistor and an operational amplifier. The detection result is sent to the main control circuit; the main control circuit comprises an MC chip and is used for receiving and processing signals from the electrode falling-off detection circuit, and the main control circuit achieves the functions of all the modules by reading data in an internal memory and controlling a register. Through linkage of the electrode falling detection circuit and the main control circuit, the electrode falling can be rapidly detected when the electrode falls accidentally, the information is immediately fed back to the main control circuit, and after the main control circuit receives a falling signal, the main control circuit can immediately take corresponding measures, such as stopping electrical stimulation treatment or giving an alarm prompt. Therefore, the potential injury or treatment interruption caused by the falling of the electrode is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pelvic floor muscle treatment instruments, and more specifically, to a circuit of a pelvic floor muscle treatment instrument with anti - detachment electrodes. Background Art

[0002] So far, pelvic floor muscle function diseases are divided into stress urinary incontinence, pelvic organ prolapse, fecal incontinence, chronic pelvic pain and sexual dysfunction. There are also many methods to treat pelvic floor muscle function diseases, such as pelvic floor muscle rehabilitation training, biofeedback therapy, electro - stimulation therapy, etc. The electro - stimulation therapy wakes up the proprioceptors by stimulating the nerves of the pelvic floor muscles through electrodes, promotes local blood circulation, and enables the muscles to exercise passively. The electrodes are usually transmitted through anal or vaginal probes connected to an external pulse generator, and the pelvic floor muscle structure is stimulated with current. The treatment purpose can be achieved by improving the functions of the urethral sphincter, levator ani muscle and external anal sphincter. The advantage of this treatment method compared with the previous ones is that it can be used at home without frequent visits to the hospital for treatment, and its treatment effect is almost the same as that in the hospital.

[0003] The pelvic floor muscle treatment instruments commonly used on the market for treating pelvic floor muscle function diseases mainly adopt the electro - stimulation therapy. Its working principle is to utilize the weak current generated by the pelvic floor muscles to be transmitted into the pelvic floor muscles of the human body, stimulate the muscles to produce contraction or relaxation reactions, thereby promoting the movement and functional recovery of the pelvic floor muscles. However, the existing pelvic floor muscle treatment instruments have the problem that the electrodes are prone to detachment and not noticed. The detachment of the electrodes is not discovered by the patient in time, which may lead to poor treatment effect or treatment interruption. Therefore, we make improvements on this and propose a circuit of a pelvic floor muscle treatment instrument with anti - detachment electrodes. Summary of the Invention

[0004] The purpose of the utility model is to address the problem that the existing pelvic floor muscle treatment instruments have electrodes that are prone to detachment and not noticed.

[0005] To achieve the above - mentioned invention purpose, the utility model provides a circuit of a pelvic floor muscle treatment instrument with anti - detachment electrodes to improve the above problems.

[0006] Specifically, this application is as follows:

[0007] A circuit of a pelvic floor muscle treatment instrument with anti - detachment electrodes includes: a main control circuit and an electrode detachment detection circuit connected to the main control circuit. The electrode detachment detection circuit is used to connect to the electrodes. The main control circuit and the electrode detachment detection circuit detect whether the electrodes are detached through a voltage - dividing resistor and an operational amplifier, and send the detection result to the main control circuit. The main control circuit includes an MCU chip for receiving and processing signals from the electrode detachment detection circuit. The main control circuit is also connected to a buzzer circuit to control the buzzer to alarm when the electrode detachment detection circuit detects that the electrodes are detached.

[0008] As a preferred technical solution of the present application, the main control circuit is connected with a charging management circuit, and the charging management circuit is connected with a lithium battery and an external power supply, and is used for monitoring the voltage, current and temperature parameters of the lithium battery;

[0009] The main control circuit is connected with a DC-DC switching power supply circuit, and the DC-DC switching power supply circuit is connected with the lithium battery and the external power supply, and is used for converting a 5V voltage into 3.3V to provide the required voltage for the main control circuit.

[0010] As a preferred technical solution of the present application, the main control circuit is connected with a serial port debugging circuit; the main control circuit is connected with a clock circuit.

[0011] As a preferred technical solution of the present application, the main control circuit is connected with a V power supply control switch circuit, and outputs high and low levels to the IO port of the MCU chip of the main control circuit through the state of the button to control the power supply or power off of the lithium battery.

[0012] As a preferred technical solution of the present application, the main control circuit is connected with a voltage stabilizing circuit, and the voltage stabilizing circuit is used for stabilizing the voltage.

[0013] As a preferred technical solution of the present application, the main control circuit is connected with a power amplification circuit, the power amplification circuit is connected with an electrotherapy channel circuit, and the electrotherapy channel circuit is connected with an electrode; the electrotherapy channel circuit has two electrotherapy channels.

[0014] As a preferred technical solution of the present application, the main control circuit is connected with an electromyogram signal monitoring circuit, and the electromyogram signal monitoring circuit is connected with an electrode.

[0015] As a preferred technical solution of the present application, the main control circuit is connected with a Bluetooth communication circuit.

[0016] As a preferred technical solution of the present application, the main control circuit is connected with a three-color lamp circuit.

[0017] As a preferred technical solution of the present application, the main control circuit is connected with a digital tube display circuit.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] In the solution of the present application:

[0020] To solve the problem that the electrodes of the existing pelvic floor muscle therapy devices are prone to falling off without being noticed, through the linkage between the electrode detachment detection circuit and the main control circuit in this application, it is possible to quickly detect when the electrode accidentally falls off and immediately feedback this information to the main control circuit. After receiving the detachment signal, the main control circuit can immediately take corresponding measures, such as stopping the electrostimulation treatment or issuing an alarm prompt, thus effectively avoiding potential injuries or treatment interruptions caused by electrode detachment and greatly enhancing the safety of the treatment process. Description of the Drawings

[0021] Figure 1 It is a block diagram of the circuit of the pelvic floor muscle therapy device with anti - electrode - detachment provided by this application;

[0022] Figure 2 It is a power amplification circuit diagram of the circuit of the pelvic floor muscle therapy device with anti - electrode - detachment provided by this application;

[0023] Figure 3 It is a circuit diagram of two electrotherapy channels of the electrotherapy channel circuit of the circuit of the pelvic floor muscle therapy device with anti - electrode - detachment provided by this application;

[0024] Figure 4 It is an electrode detachment detection circuit diagram of the circuit of the pelvic floor muscle therapy device with anti - electrode - detachment provided by this application;

[0025] Figure 5 It is a main control circuit diagram of the circuit of the pelvic floor muscle therapy device with anti - electrode - detachment provided by this application;

[0026] Figure 6 It is an electromyogram signal monitoring circuit diagram of the circuit of the pelvic floor muscle therapy device with anti - electrode - detachment provided by this application;

[0027] Figure 7 It is a charging management circuit diagram of the circuit of the pelvic floor muscle therapy device with anti - electrode - detachment provided by this application;

[0028] Figure 8 It is a 5V power supply control switch circuit diagram of the circuit of the pelvic floor muscle therapy device with anti - electrode - detachment provided by this application;

[0029] Figure 9 It is a serial port debugging circuit diagram of the circuit of the pelvic floor muscle therapy device with anti - electrode - detachment provided by this application;

[0030] Figure 1 It is a digital tube display circuit diagram of the circuit of the pelvic floor muscle therapy device with anti - electrode - detachment provided by this application;

[0031] Figure 11 It is a three - color lamp circuit diagram of the circuit of the pelvic floor muscle therapy device with anti - electrode - detachment provided by this application;

[0032] Figure 12The Bluetooth communication circuit diagram of the pelvic floor muscle therapy instrument circuit for preventing electrode detachment provided by this application;

[0033] Figure 13 The voltage stabilizing circuit diagram of the pelvic floor muscle therapy instrument circuit for preventing electrode detachment provided by this application;

[0034] Figure 14 The clock circuit diagram of the pelvic floor muscle therapy instrument circuit for preventing electrode detachment provided by this application;

[0035] Figure 1 5The circuit diagram of converting 5V to 3.3V of the pelvic floor muscle therapy instrument circuit for preventing electrode detachment provided by this application;

[0036] Figure 16 The buzzer circuit diagram of the pelvic floor muscle therapy instrument circuit for preventing electrode detachment provided by this application;

[0037] Figure 17 The circuit diagram of the memory of the pelvic floor muscle therapy instrument circuit for preventing electrode detachment provided by this application. Detailed implementation manners

[0038] In order to enable those skilled in the art to better understand the solution of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, rather than all the embodiments. Based on the embodiments in this utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of this utility model.

[0039] In order to enable those skilled in the art to better understand the solution of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0040] It should be noted that, without conflict, the embodiments in this utility model and the features and technical solutions in the embodiments can be combined with each other.

[0041] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0042] Example 1, please refer to Figure 1 - Figure 17. A circuit of a pelvic floor muscle treatment instrument for preventing electrode detachment, comprising: a main control circuit 14 and an electrode detachment detection circuit 9 connected to the main control circuit 14. The electrode detachment detection circuit 9 is used to connect to the electrode. The main control circuit and the electrode detachment detection circuit 9 detect whether the electrode is detached through a voltage-dividing resistor and an operational amplifier, and send the detection result to the main control circuit 14; the main control circuit 14 includes an MCU chip, which is used to receive and process signals from the electrode detachment detection circuit 9. The main control circuit 14 realizes the functions of each module by reading data in the internal memory and controlling registers. The main control circuit 14 is also connected to a buzzer circuit to control the buzzer to give an alarm when the electrode detachment detection circuit 9 detects that the electrode is detached.

[0043] Further, as Figure 1 shown, the main control circuit 14 is connected to a charging management circuit 1. The charging management circuit 1 is connected to a lithium battery and an external power supply, and is used to monitor the voltage, current and temperature parameters of the lithium battery, prevent overcharging and over-discharging of the lithium battery, and extend the service life of the lithium battery;

[0044] The main control circuit 14 is connected to a DC-DC switching power supply circuit 2. The DC-DC switching power supply circuit 2 is connected to the lithium battery and the external power supply, and is used to convert the 5V voltage into 3.3V and output current to provide the required voltage and current for the main control circuit 14, and also provide the required voltage and current for other circuits.

[0045] Embodiment 2 further optimizes the circuit of the pelvic floor muscle treatment instrument for preventing electrode detachment provided in Embodiment 1. Specifically, as Figure 1 shown, the main control circuit 14 is connected to a serial port debugging circuit 3 for debugging software programs;

[0046] The main control circuit 14 is connected to a clock circuit 4, which is used to output a clock signal with a certain frequency for synchronizing and controlling the operations between the functions of each circuit.

[0047] Further, as Figure 1 shown, the main control circuit 14 is connected to a 5V power supply control switch circuit 5. The 5V power supply control switch circuit 5 outputs high and low levels to the IO port of the MCU chip of the main control circuit 14 through the state of the button to control the power supply or power-off of the lithium battery. When the button is pressed, a high level is output to the IO port of the MCU chip. When the button is not pressed, a low level is output to the IO port of the MCU chip. When the MCU chip receives a high level, the lithium battery supplies power. When the MCU chip receives a low level, the lithium battery is powered off.

[0048] Further, as Figure 1 shown, the main control circuit 14 is connected to a voltage stabilizing circuit 6. The voltage stabilizing circuit 6 is used to stabilize the voltage so that the voltage is stabilized at 5V.

[0049] Further, asFigure 1 As shown, the main control circuit 14 is connected to a power amplifier circuit 7. The power amplifier circuit 7 is connected to an electrotherapy channel circuit 8, and the electrotherapy channel circuit 8 is connected to electrodes. The power amplifier circuit 7 generates a PWM wave through an MCU chip to provide the voltage required for treatment for the electrotherapy channel circuit 8. The electrotherapy channel circuit 8 has two electrotherapy channels, and the on-off of transistors NPN and PNP is controlled by 8 PWM waves generated by the MCU chip to form different permutations and combinations of different frequencies, different pulse intervals, etc., generating a massage-like technique to achieve the effect of treating related diseases. This circuit uses the H-bridge circuit method to perform electrotherapy operations for realizing electrotherapy operations.

[0050] Further, as Figure 1 shown, the main control circuit 14 is connected to an electromyogram signal monitoring circuit 10. The electromyogram signal monitoring circuit 10 is connected to electrodes. The electromyogram signal monitoring circuit 10 is used to receive the electromyogram signals obtained by the electrodes and convert them into measurable voltages. Electromyogram signals are weak electrical signals generated when muscles contract and relax. The electromyogram signals are obtained by the electrodes and sent to the electromyogram signal monitoring circuit 10, which can amplify these signals and convert them into measurable voltages.

[0051] Further, as Figure 1 shown, the main control circuit 14 is connected to a Bluetooth communication circuit 11. The Bluetooth communication circuit 11 is used to communicate with intelligent devices to view the usage situation and the working state of the device;

[0052] Further, as Figure 1 shown, the main control circuit 14 is connected to a three-color light circuit 12. The three-color light circuit 12 is used to generate different colors by outputting different PWM waves to indicate the working state of the device. For example, orange represents charging, green represents electrotherapy in progress, and purple represents the device on standby.

[0053] Further, as Figure 1 shown, the main control circuit 14 is connected to a digital tube display circuit 13, which is used to display the working mode and electrotherapy intensity of the device. The digital tube display circuit 13 controls the digital tube to display 1 - 12 working modes and 1 - 10 electrotherapy intensities by using the serial input and parallel output method of the 74HC595D chip.

[0054] Example 3, as Figure 2, pin 4 of chip U12 receives a PWM wave with a frequency of 2 Hz. Pins 5, 6, 7, and 8 of the chip are connected in parallel with the positive pole of inductor L6 and switching diode D8. The other end of inductor L6 is connected to the 5V power supply. The PWM wave received by pin 4 of chip U12 is used to control the on / off of chip U12. Inductor L6 stores and releases electrical energy through the on / off of chip U12 to boost the voltage, and after filtering through switching diode D8 and filter capacitor C49, VDD_BIO1 is output;

[0055] As Figure 3 , the base of transistor Q20 receives a PWM wave with a frequency of 2 Hz through current-limiting resistor R71 and pull-down resistor R75 to control the on / off of Q20. When the base of transistor Q20 is at a high level, transistor Q20 conducts. Since the emitter of transistor Q20 is grounded, the collector of transistor Q20 outputs a low level. The collector of transistor Q20 is connected to the base of transistor Q14 through resistor R68. Therefore, the base of transistor Q14 is at a low level, and transistor Q14 conducts. The emitter of transistor Q14 is connected to Figure 2 the output terminal VDD_BIO1, and the collector is connected to pin 1 of the electrode head. Since transistor Q14 conducts, the output terminal VDD_BIO1 is output to the human skin through the electrode head;

[0056] The base of transistor Q21 receives a PWM wave with a frequency of 2 Hz through current-limiting resistor R72 and pull-down resistor R76 to control the on / off of Q21. When the base of transistor Q21 is at a high level, transistor Q21 conducts. Since the emitter of transistor Q21 is grounded, the collector of transistor Q21 outputs a low level. The collector of transistor Q21 is connected to the base of transistor Q15 through resistor R67. Therefore, the base of transistor Q15 is at a low level, and transistor Q15 conducts. The emitter of transistor Q15 is connected to pin 3 of the electrode head and the collector of Q17, and the collector is connected to the base of transistor Q17. When the electrode head is not detached, the collector of transistor Q15 outputs a high level to the base of Q17, causing transistor Q17 to conduct. The emitter of Q17 is connected to the collector of Q30, that is, as Figure 4 ; the base of transistor Q30 receives a level signal output by chip U9 through current-limiting resistor R127 to control the on / off of transistor Q30. When the base of transistor Q30 is at a high level, transistor Q30 conducts, forming a loop with the output terminal VDD_BIO1, transistors Q14Q, the electrode head, and Q17. Figure 3The circuit is designed in the H-bridge circuit mode, and the same direction cannot conduct. For example, Q18 and Q21 cannot conduct simultaneously. The principle of other channels is the same as above;

[0057] Such as Figure 4 , pin 12 of chip U9 receives a high level through current-limiting resistor R128. Pin 13 is connected to the emitter E of triode Q30 and resistor R126. Its voltage is compared with that of pin 12 through chip U9, and then output from pin 14. Pin 14 is connected to the base B of Q30. Pin 14 outputs a high level or a low level to control the on / off of triode Q30. Pin 10 of chip U9 is connected to the input end BIOB2 of the electrode head through voltage-dividing resistors R105 and R104. When the electrode head is not detached, the human body is equivalent to a variable resistor and divides the voltage with voltage-dividing resistor R105. Pin 10 of chip U9 obtains the voltage-dividing signal. Pins 8 and 9 are connected to the IO port of the main control chip through resistor R103. The voltage of pin 10 and pin 8 is compared through chip U9. When the electrode head is not detached, a voltage of about 1.5V will be output. When the electrode head is detached, a voltage of 0V will be output. Whether the electrode head is detached is judged according to the change of the voltage;

[0058] Such as Figure 5 , the electrode head pins 1, 3, and 5 are connected to the wires ADS1292R_ERA, ADS1292R_ELA, ADS1292R_RLD through resistors R118, R115, R116, R119, R113, R114, R112, that is, as shown in Figure 4 the upper right part, respectively. The wires ADS1292R_ERA and ADS1292R_ELA obtain the impedance and change components of the human body through the electrode head. Resistors R18 and R21 limit the alternating current flowing into the human body. Capacitors C26 and C28 prevent any direct current from flowing into the human body from the transmission side. Capacitors C22 and C33 also play the same role on the receiver side. Capacitors C25 and C27 prevent excessive direct current from flowing into the human body due to the failure of a single component;

[0059] Pins 3, 4, 5, 6, 31, and 32 of chip U8 receive the signals transmitted by wires ADS1292R_ERA, ADS1292R_ELA, and ADS1292R_RLD. After analysis and processing, the signals are output from pin 21 of chip U8 to the MCU chip. Among them, wire ADS1292R_RLD and resistors R15, R16, R19, R20, and capacitor C31 form a right leg drive circuit. This circuit suppresses common-mode interference by inverting and amplifying the common-mode signal and inputting it into the human body, ensuring the stability and reliability of the signals of the entire circuit.

[0060] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0061] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all of them. The accompanying drawings show the preferred embodiments of the present utility model, but do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structures directly or indirectly using the content of the specification and drawings of the present utility model in other related technical fields are equally within the scope of the patent protection of the present utility model.

Claims

1. A circuit of a pelvic floor muscle treatment instrument for preventing electrode detachment, characterized in that, Comprising: A main control circuit (14) and an electrode detachment detection circuit (9) connected to the main control circuit (14). The electrode detachment detection circuit (9) is used to connect to the electrode. The main control circuit electrode detachment detection circuit (9) detects whether the electrode is detached through a voltage-dividing resistor and an operational amplifier, and sends the detection result to the main control circuit (14); the main control circuit (14) includes an MCU chip, which is used to receive and process signals from the electrode detachment detection circuit (9). The main control circuit (14) is also connected to a buzzer circuit to control the buzzer to alarm when the electrode detachment detection circuit (9) detects that the electrode is detached.

2. The circuit of the pelvic floor muscle treatment instrument for preventing electrode detachment according to claim 1, wherein, The main control circuit (14) is connected to a charging management circuit (1). The charging management circuit (1) is connected to a lithium battery and an external power supply, and is used to monitor the voltage, current and temperature parameters of the lithium battery. The main control circuit (14) is connected to a DC-DC switching power supply circuit (2). The DC-DC switching power supply circuit (2) is connected to the lithium battery and the external power supply, and is used to convert a 5V voltage into 3.3V to provide the required voltage for the main control circuit (14).

3. The circuit of a pelvic floor muscle treatment instrument for preventing electrode detachment according to claim 2, characterized in that, The main control circuit (14) is connected to a serial port debugging circuit (3); the main control circuit (14) is connected to a clock circuit (4).

4. The circuit of a pelvic floor muscle treatment apparatus for preventing electrode detachment according to claim 3, wherein The main control circuit (14) is connected to a 5V power supply control switch circuit (5), which outputs high and low levels to the IO port of the MCU chip of the main control circuit (14) through the state of a key to control the power supply or power-off of the lithium battery.

5. The circuit of a pelvic floor muscle therapy device for preventing electrode detachment according to claim 4, wherein, The main control circuit (14) is connected to a voltage stabilizing circuit (6), and the voltage stabilizing circuit (6) is used to stabilize the voltage.

6. The circuit of the pelvic floor muscle treatment instrument for preventing electrode detachment according to claim 5, characterized in that, The main control circuit (14) is connected to a power amplifier circuit (7). The power amplifier circuit (7) is connected to an electrotherapy channel circuit (8), and the electrotherapy channel circuit (8) is connected to the electrode; the electrotherapy channel circuit (8) has two electrotherapy channels.

7. An electrode anti - detachment pelvic floor muscle treatment instrument circuit according to claim 6, characterized in that, The main control circuit (14) is connected to an electromyogram signal monitoring circuit (10), and the electromyogram signal monitoring circuit (10) is connected to the electrode.

8. An electrode anti - detachment pelvic floor muscle therapy instrument circuit according to claim 7, characterized in that, The main control circuit (14) is connected to a Bluetooth communication circuit (11).

9. An electrode anti - detachment pelvic floor muscle treatment instrument circuit according to claim 8, characterized in that, The main control circuit (14) is connected to a three-color light circuit (12).

10. The circuit of a pelvic floor muscle treatment instrument for preventing electrode detachment according to claim 9, characterized in that, The main control circuit (14) is connected to a digital tube display circuit (13).

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