Electrical stimulation device

Abstract

The utility model provides an electrical stimulation device, which is applied to the technical field of electrophysiological sampling, and comprises a main control module, the main control module is respectively connected with an infrared receiving module and an adjusting module, the main control module configures parameters through infrared light signals received by the infrared receiving module so as to output control signals, and the adjusting module is connected with the main control module. The control signal is used for controlling the adjusting module to adjust the parameters of the output electric signal, the adjusting module comprises a potentiometer U8 and a controllable current source U5, the potentiometer U8 is used for adjusting the resistance value of the connected adjustable resistor, and the controllable current source U5 controls the parameters of the output electric signal through the PWM signal output by the main control module. Parameter setting of the main control module is achieved through infrared communication, parameters of output electric signals are accurately controlled through the adjusting module, and accuracy and synchronism of electrophysiological sampling are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrophysiological sampling, and in particular relates to an electric stimulation device. Background Art

[0002] Electrophysiological technology refers to the technology of stimulating organisms with various forms of energy (electricity, sound, etc.) to measure, record and analyze the electrical phenomena (bioelectricity) and electrical characteristics of organisms.

[0003] In medical and biological experiments, subjects are subjected to electrical stimulation to collect information about their biological properties. During this process, controlling the output electrical signal is crucial, as it directly impacts the experimental results. Therefore, improving this control is crucial to increase the accuracy of these results. Utility Model Content

[0004] In view of the above-mentioned problems in the prior art, the purpose of the present invention is to provide an electrical stimulation device that uses infrared communication to realize parameter setting of the main control module, and accurately controls the parameters of the output electrical signal by adjusting the module, thereby improving the accuracy and synchronization of electrophysiological sampling.

[0005] An electrical stimulation device includes a main control module, which is respectively connected to an infrared receiving module and an adjustment module. The main control module configures parameters through the infrared light signal received by the infrared receiving module to output a control signal. The control signal is used to control the adjustment module to adjust the parameters of the output electrical signal. The adjustment module includes a potentiometer U8 and a controllable current source U5. The potentiometer U8 is used to adjust the resistance value of the connected adjustable resistor. The controllable current source U5 controls the parameters of the output electrical signal by the PWM signal output by the main control module.

[0006] Preferably, the infrared receiving module includes an infrared receiving head and a switching tube. The infrared receiving head is connected to the gate of the switching tube to control the on and off of the switching tube. When the switching tube is turned on, the main control module configures corresponding parameters according to the infrared light signal received by the infrared receiving module.

[0007] Preferably, the potentiometer U8 is synchronized with the clock of the main control module, and the potentiometer U8 receives a control signal from the main control module to adjust the resistance value.

[0008] Preferably, the REXT pin of the controllable current source U5 is connected to the potentiometer U8, and the controllable current source U5 is also connected to the PWM signal output by the main control module, and the adjusted electrical signal output by the controllable current source U5 is controlled by the PWM signal. The output end of the controllable current source U5 is connected to the transistor Q2, and the output end of the transistor Q2 outputs the target electrical signal. The transistor Q2 is used to amplify the adjusted electrical signal output by the output end of the controllable current source U5.

[0009] Preferably, it further includes a selection output module connection, wherein the selection output module is connected to the output signal of the main control module and the adjustment module, and outputs a corresponding signal according to the control instruction of the main control module.

[0010] Preferably, it further comprises a boost module connected to the power supply battery, wherein the boost module is used to adjust the power supply voltage provided by the power supply battery to a power supply voltage compatible with the selection output module.

[0011] Preferably, the boost module includes a boost conversion chip U1, an inductor L1 is connected between the VIN pin and the SW pin of the boost conversion chip U1, the SW pin of the boost conversion chip U1 is also connected to a diode D1, and the supply voltage is output through the diode D1; the VIN pin of the boost conversion chip U1 is also connected to a capacitor C1 and a resistor R1 in parallel, the other end of the capacitor C1 is grounded, and the other end of the resistor R1 is connected to the EN pin of the boost conversion chip U1, the EN pin of the boost conversion chip U1 is also connected to a MOS tube, the gate of the MOS tube is connected to the main control module, and the boost conversion chip U1 is driven by the main control module.

[0012] Preferably, the boost module also includes a resistor R6 and a resistor R7 connected in series and a capacitor C3 and a capacitor C4 connected in parallel, the other end of the resistor R7 is connected to the negative electrode of the diode D1, the other end of the resistor R6 is grounded, one end of the capacitor C3 and the capacitor C4 are connected to the negative electrode of the diode D1, the other end of the capacitor C3 is connected between the resistor R6 and the resistor R7 and connected to the FB pin of the boost converter chip U1, and the other end of the capacitor C4 is grounded.

[0013] The beneficial effects of the present invention are as follows: the electrical stimulation device realizes the parameter setting of the main control module through the infrared light signal received by the infrared receiving module, thereby improving the speed and accuracy of information transmission. During the electrical stimulation sampling process, the main control module controls the adjustment module to adjust the resistance value of the connected potentiometer and the current parameters output by the controllable current source respectively, thereby realizing precise control of the electrical stimulation output signal and effectively improving the accuracy of electrophysiological information sampling.

[0014] The precisely synchronized electrical stimulation output signal ensures the high quality and reliability of the collected data, making it suitable for high-precision scientific research experiments. The device has a high degree of integration, low power consumption, and a small size, making it easy for the experimental subject to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a circuit block diagram of the utility model;

[0017] Figure 2 This is a circuit diagram of the main control module of the utility model;

[0018] Figure 3 This is a structural diagram of the infrared receiving module of the present utility model;

[0019] Figure 4 This is a circuit diagram of a potentiometer in the adjustment module of the utility model;

[0020] Figure 5 This is a circuit diagram of a controllable current source in the adjustment module of the utility model;

[0021] Figure 6 This is a circuit diagram of the selective output module of the utility model;

[0022] Figure 7 It is a circuit diagram of the boost module of the utility model. DETAILED DESCRIPTION

[0023] Example 1

[0024] like Figure 1 As shown, an electrical stimulation device includes a main control module, an infrared receiver module, an adjustment module, a selection output module, a power supply battery, and a boost module. The main control module configures its own parameters based on the infrared light signals received by the infrared receiver module, thereby outputting corresponding control signals. Infrared communication is achieved through the infrared receiver module, improving the speed and accuracy of information transmission.

[0025] like Figure 2 As shown, the control signal of the main control module is used to control the adjustment module to adjust the parameters of the output electrical signal. The precise regulation of the output electrical signal is achieved through the adjustment module, which can effectively improve the accuracy of the experimental results. In this embodiment, the main control module includes a main control chip U3, and the main control chip U3 is also connected to two LED indicator lights of different colors. In a specific embodiment, the two LED indicator lights can be selected from red and green respectively. Whether the two LED indicator lights flash or the number of flashes is set to reflect whether the main control module is powered on, whether the parameter setting is completed, etc. The specific settings can be set according to usage requirements or usage habits, and will not be described in detail here.

[0026] like Figure 3 As shown, the infrared receiving module includes an infrared receiving head and a switch tube. The infrared receiving head is connected to the gate of the switch tube to control the on and off of the switch tube. When the switch tube is turned on, the main control module configures the corresponding parameters according to the infrared light signal received by the infrared receiving module.

[0027] Specifically, such as Figure 4 、 Figure 5As shown, the adjustment module includes a potentiometer U8 and a controllable current source U5. The potentiometer U8 is used to adjust the resistance value of the adjustable resistor. The controllable current source U5 controls the parameters of the output electrical signal by the PWM signal output by the main control module.

[0028] The potentiometer U8 is synchronized with the main control module's clock and receives control signals from the main control module to adjust its resistance. The REXT pin of the controllable current source U5 is connected to the potentiometer U8. The controllable current source U5 also receives a PWM signal from the main control module, which controls the adjusted electrical signal output by the controllable current source U5. The output of the controllable current source U5 is connected to a transistor Q2, which outputs the target electrical signal. In this embodiment, transistor Q2 is a dual NPN transistor and is used to amplify the adjusted electrical signal output by the output of the controllable current source U5.

[0029] The adjustment module can output a controllable and stable current according to the drive of the main control module, realize the precise control of the output electrical signal, and effectively improve the accuracy of the experimental results.

[0030] like Figure 1 、 Figure 6 As shown, the output module is selected to connect to the main control module and the output signal of the adjustment module, and the corresponding signal is output according to the control instruction of the main control module. The signal acts on the experimental subject and gives the experimental subject a precise and controllable electrical stimulation, thereby facilitating the collection of electrophysiological information generated by the experimental subject due to the electrical stimulation.

[0031] like Figure 1 、 Figure 7 As shown, the boost module is connected to the power supply battery, which provides power supply voltage to the main control module, infrared receiving module, potentiometer U8, and controllable current source U5 respectively; the boost module is used to adjust the power supply voltage provided by the power supply battery to a power supply voltage suitable for the selected output module.

[0032] Specifically, such as Figure 7 As shown, the boost module includes a boost converter chip U1, and an inductor L1 is connected between the VIN pin and the SW pin of the boost converter chip U1. The inductor L1 is used to store and release energy to help increase the voltage; the SW pin of the boost converter chip U1 is also connected to a diode D1, and the supply voltage is output through the diode D1; when the inductor L1 releases energy, the diode D1 allows current to pass through and outputs the supply voltage required by the output module. In this embodiment, the supply voltage is 18V. The diode D1 is provided to prevent current backflow and ensure the normal operation of the circuit.

[0033] The VIN pin of the boost converter chip U1 is also connected to a capacitor C1 and a resistor R1 in parallel. The other end of the capacitor C1 is grounded, and the other end of the resistor R1 is connected to the EN pin of the boost converter chip U1. The EN pin of the boost converter chip U1 is also connected to a MOS tube. The gate of the MOS tube is connected to the main control module, and the boost converter chip U1 is driven by the main control module.

[0034] In addition, the boost module also includes resistors R6 and R7 connected in series, and capacitors C3 and C4 connected in parallel. The other end of resistor R7 is connected to the cathode of diode D1, and the other end of resistor R6 is grounded. One end of capacitors C3 and C4 is connected to the cathode of diode D1. The other end of capacitor C3 is connected between resistors R6 and R7 and connected to the FB pin of boost converter chip U1. The other end of capacitor C4 is grounded. Capacitors C3 and C4 are used to stabilize the output voltage, reduce high-frequency noise, and improve voltage stability and quality. Resistors R6 and R7 form a voltage divider for setting the output supply voltage.

[0035] Working Principle: When in use, the electrical stimulation device communicates infraredly with a host computer (not shown) controlled by a PC via an infrared receiving module. The main control module is initialized after receiving power voltage, then sets parameters based on the infrared light signal received by the infrared receiving module and issues stimulation instructions or ends stimulation instructions in a timely manner based on the infrared light signal. The main control module controls the adjustment module to output the required electrical signal. The adjustment module adjusts the resistance of the connected potentiometer and the current parameters of the controllable current source output according to the control signal connected to the main control module to achieve precise control of the electrical stimulation signal, thereby effectively improving the accuracy and reliability of the experimental results.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An electrical stimulation device, characterized in that: It includes a main control module, which is connected to an infrared receiving module and an adjustment module respectively. The main control module configures parameters of the infrared light signal received by the infrared receiving module to output a control signal. The control signal is used to control the adjustment module to adjust the parameters of the output electrical signal. The adjustment module includes a potentiometer U8 and a controllable current source U5. The potentiometer U8 is used to adjust the resistance value of the adjustable resistor. The controllable current source U5 controls the parameters of the output electrical signal by the PWM signal output by the main control module.

2. The electrical stimulation device according to claim 1, wherein The infrared receiving module includes an infrared receiving head and a switch tube. The infrared receiving head is connected to the gate of the switch tube to control the conduction and cutoff of the switch tube. When the switch tube is turned on, the main control module configures the corresponding parameters according to the infrared light signal received by the infrared receiving module.

3. The electrical stimulation device according to claim 1, wherein The potentiometer U8 is synchronized with the main control module clock, and the potentiometer U8 receives the control signal of the main control module to adjust the resistance value.

4. The electrical stimulation device according to claim 1, wherein The REXT pin of the controllable current source U5 is connected to the potentiometer U8. The controllable current source U5 is also connected to the PWM signal output by the main control module. The adjusted electrical signal output by the controllable current source U5 is controlled by the PWM signal. The output end of the controllable current source U5 is connected to the transistor Q2. The output end of the transistor Q2 outputs the target electrical signal. The transistor Q2 is used to amplify the adjusted electrical signal output by the output end of the controllable current source U5.

5. The electrical stimulation device according to claim 1, wherein It also includes a selection output module connection, the selection output module is connected to the output signal of the main control module and the adjustment module, and outputs a corresponding signal according to the control instruction of the main control module.

6. The electrical stimulation device according to claim 5, characterized in that It also includes a boost module connected to the power supply battery, and the boost module is used to adjust the power supply voltage provided by the power supply battery to a power supply voltage that is compatible with the selection output module.

7. The electrical stimulation device according to claim 6, wherein: The boost module includes a boost converter chip U1, an inductor L1 is connected between the VIN pin and the SW pin of the boost converter chip U1, and a diode D1 is further connected to the SW pin of the boost converter chip U1, and the supply voltage is output through the diode D1; The VIN pin of the boost converter chip U1 is also connected to a capacitor C1 and a resistor R1 in parallel. The other end of the capacitor C1 is grounded, and the other end of the resistor R1 is connected to the EN pin of the boost converter chip U1. The EN pin of the boost converter chip U1 is also connected to a MOS tube. The gate of the MOS tube is connected to the main control module, and the boost converter chip U1 is driven by the main control module.

8. The electrical stimulation device according to claim 7, wherein: The boost module also includes resistors R6 and R7 connected in series and capacitors C3 and C4 connected in parallel. The other end of the resistor R7 is connected to the cathode of the diode D1, and the other end of the resistor R6 is grounded. One end of the capacitors C3 and C4 are connected to the cathode of the diode D1, and the other end of the capacitor C3 is connected between the resistors R6 and R7 and connected to the FB pin of the boost converter chip U1. The other end of the capacitor C4 is grounded.

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