CN106512212B - A pain relief chip - Google Patents

Abstract

The present invention discloses an analgesic chip, which relates to the medical field and includes: a low-frequency signal generator module, an MCU microcontroller module, a Bluetooth module and a rechargeable battery module; the Bluetooth module is used to exchange data with a mobile terminal; the data includes the frequency information and intensity information of the low-frequency pulse; the MCU microcontroller module is used to perform signal processing on the exchanged data and control the low-frequency signal generator module to generate a low-frequency signal; the output end of the low-frequency signal generator module is provided with a metal contact for transmitting the low-frequency signal to the human body. The analgesic chip provided by the present invention is small in size, easy to carry, and convenient for outdoor use; and the analgesic effect is good by adjusting the parameters of the low-frequency pulse signal.

Description

A pain relief chip

Technical Field

The invention relates to the field of electrotherapy, and in particular to an analgesic chip.

Background Art

Transcutaneous electrical nerve stimulation therapy, also known as TENS therapy, is a method of treating pain by injecting a specific low-frequency pulse current into the human body through the skin. This is an electrotherapy that emerged in the 1970s. It has a good effect in pain relief and is widely used in clinical practice. The difference between TENS therapy and traditional nerve stimulation therapy is that traditional electrical stimulation mainly stimulates motor fibers, while TENS is designed to stimulate sensory fibers.

Existing TENS devices are generally bulky and inconvenient to carry, and cannot be worn for long-term use.

Summary of the invention

In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide an analgesic chip. The purpose is to solve the problem that the prior art TENS instruments are generally large in size, not easy to carry, and cannot be worn for long-term use. The analgesic chip provided by the present invention is small in size, easy to carry, and convenient for outdoor use.

To achieve the above object, the present invention provides an analgesic chip, comprising: a low-frequency signal generator module, an MCU microcontroller module, a Bluetooth module and a rechargeable battery module;

The first output end of the MCU microcontroller module is connected to the pulse amplitude control end of the low-frequency signal generator module; the second output end of the MCU microcontroller module is connected to the pulse frequency control end of the low-frequency signal generator module;

The MCU microcontroller module is bidirectionally connected to the Bluetooth module; the rechargeable battery module supplies power to the low-frequency signal generator module, the MCU microcontroller module, and the Bluetooth module;

The Bluetooth module is used to exchange data with the mobile terminal; the data includes frequency information and intensity information of the low-frequency pulse;

The MCU microcontroller module is used to perform signal processing on the exchange data and control the low-frequency signal generator module to generate a low-frequency signal;

The output end of the low-frequency signal generator module is provided with a metal contact for conducting the low-frequency signal to the human body.

The analgesic chip provided by the technical solution is small in size, easy to carry, and convenient for outdoor use. At the same time, the first output end of the MCU microcontroller module is connected to the pulse amplitude control end of the low-frequency signal generator module, and the second output end of the MCU microcontroller module is connected to the pulse frequency control end of the low-frequency signal generator module, so that the MCU controls the pulse amplitude and frequency of the low-frequency pulse signal, so that different low-frequency pulse signals can solve different analgesic projects, and realize the diversity of analgesic projects. At the same time, the pulse amplitude and frequency are adjusted according to different personal constitutions, personal preferences and effects.

Furthermore, the signal generator module includes: a D/A converter and a transistor switching circuit; the input end of the D/A converter is connected to the first output end of the MCU microcontroller, the control end of the transistor switching circuit is connected to the second output end of the MCU microcontroller, the D/A converter is used to adjust the pulse amplitude of the low-frequency pulse signal, and the transistor switching circuit is used to adjust the pulse frequency of the low-frequency pulse signal; the analog voltage output end of the D/A converter is connected to the voltage input end of the transistor switching circuit, and the voltage output end of the transistor switching circuit is connected to the metal contact.

In this technical solution, the digital signal of the MCU microcontroller is converted into a voltage signal through a D/A converter to achieve the change and setting of the low-frequency pulse amplitude, and the transistor switch circuit is controlled by the microcontroller to adjust the low-frequency pulse frequency.

Furthermore, the frequency information and intensity information of the low-frequency pulse sent by the mobile terminal includes: a pulse frequency setting value, a pulse intensity setting value, a pulse frequency enhancement, a pulse frequency reduction, a pulse intensity enhancement or a pulse intensity reduction.

In this technical solution, the pulse frequency and pulse strength are set through the mobile terminal to achieve different low-frequency pulse signal requirements.

Furthermore, the frequency of the low-frequency pulse is 1HZ-500HZ; the width of the low-frequency pulse is 40-1000μs; and the intensity of the low-frequency pulse is 1mA-50mA.

Furthermore, the low-frequency pulse signal includes several groups of intermittent pulses with a total period of _Ti , where i is a positive integer; each group of the intermittent pulses includes several pulses with a period of T _(i,j) and a duration of T _(i,j,1) , where j is a positive integer; wherein _Ti , T _(i,j) , and T _(i,j,1) are all adjustable, and _Ti >0, T _(i,j) >0, and T _(i,j,1) >0.

In this technical solution, _Ti , T _(i,j) , and T _(i,j,1) are all adjustable to optimize the actual analgesic effect of low-frequency pulses. Users or medical staff can adjust _Ti , T _(i,j) , and T _(i,j,1) to the optimal analgesic effect based on the actual analgesic effect and experience knowledge.

The beneficial effects of the present invention are as follows: the analgesic chip provided by the present invention is small in size, easy to carry, and convenient for outdoor use. At the same time, the pulse amplitude control end of the low-frequency signal generator module is connected to the pulse amplitude control end of the low-frequency signal generator module through the first output end of the MCU microcontroller module, and the second output end of the MCU microcontroller module is connected to the pulse frequency control end of the low-frequency signal generator module, so that the MCU controls the pulse amplitude and frequency of the low-frequency pulse signal, so as to achieve different low-frequency pulse signals to solve different analgesic projects, realize the diversity of analgesic projects, and at the same time, according to different personal constitutions, according to personal preferences and effects, adjust the pulse amplitude and frequency. In addition, in the present invention, _Ti , T ( _i,j) , T _(i,j,1) are all adjustable to optimize the actual analgesic effect of the low-frequency pulse. Users or medical staff can adjust _Ti , T _(i,j) , T _(i,j,1) to the optimal analgesic effect according to the actual analgesic effect and experience knowledge.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a specific embodiment of the present invention;

FIG2 is a waveform diagram of a low-frequency pulse signal according to a specific embodiment of the present invention;

FIG. 3 is a circuit diagram of a specific embodiment of the present invention.

DETAILED DESCRIPTION

The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

The purpose of the present invention is to design a small chip for existing TENS instruments that cannot be worn on the body. The chip is small in size and can be placed in wearable devices such as bracelets, patches, etc. The pulse parameters can be adjusted through mobile phone Bluetooth to better adapt to different users.

As shown in FIG. 1 and FIG. 3 , in a first embodiment of the present invention, a pain relief chip is provided, comprising: a low-frequency signal generator 101 module, an MCU microcontroller module 102 , a Bluetooth module 103 and a rechargeable battery module;

The first output end of the MCU microcontroller module 102 is connected to the pulse amplitude control end of the low-frequency signal generator 101 module; the second output end of the MCU microcontroller module 102 is connected to the pulse frequency control end of the low-frequency signal generator 101 module;

The MCU microcontroller module 102 is bidirectionally connected to the Bluetooth module 103; the rechargeable battery module supplies power to the low-frequency signal generator 101 module, the MCU microcontroller module 102, and the Bluetooth module 103;

The Bluetooth module 103 is used to exchange data with the mobile terminal 200; the data includes frequency information and intensity information of the low-frequency pulse;

The MCU microcontroller module 102 is used to perform signal processing on the exchange data and control the low-frequency signal generator 101 module to generate a low-frequency signal;

The output end of the low-frequency signal generator 101 module is provided with a metal contact 104 for transmitting the low-frequency signal to the human body.

In this embodiment, the signal generator module includes: a D/A converter 1011 and a transistor switch circuit 1012; the input end of the D/A converter 1011 is connected to the first output end of the MCU microcontroller, the control end of the transistor switch circuit 1012 is connected to the second output end of the MCU microcontroller, the D/A converter 1011 is used to adjust the pulse amplitude of the low-frequency pulse signal, and the transistor switch circuit 1012 is used to adjust the pulse frequency of the low-frequency pulse signal; the analog voltage output end of the D/A converter 1011 is connected to the voltage input end of the transistor switch circuit 1012, and the voltage output end of the transistor switch circuit 1012 is connected to the metal contact 104.

In this embodiment, the frequency information and intensity information of the low-frequency pulse sent by the mobile terminal 200 includes: a pulse frequency setting value, a pulse intensity setting value, pulse frequency enhancement, pulse frequency reduction, pulse intensity enhancement or pulse intensity reduction.

Among them, the pulse frequency changes in steps of 0.5HZ and the pulse intensity changes in steps of 1mA.

In this embodiment, the frequency of the low-frequency pulse is 1HZ-500HZ; the width of the low-frequency pulse is 40-1000μs; and the intensity of the low-frequency pulse is 1mA-50mA.

In this embodiment, the low-frequency pulse signal includes several groups of intermittent pulses with a total period of _Ti , i is a positive integer; each group of the intermittent pulses includes several pulses with a period of T _(i,j) and a duration of T _(i,j,1) , j is a positive integer; wherein _Ti , T _(i,j) , and T _(i,j,1) are all adjustable, and _Ti >0, T _(i,j) >0, and T _(i,j,1) >0. Schematically, the low-frequency pulse signal shown in FIG2 includes two groups of intermittent pulses with different total periods, and the first group of intermittent pulses includes three pulses, and the period lengths and durations of the three pulses are also different.

It is worth mentioning that studies have shown that different pulses have different effects on patients with different symptoms. For example, 1-2Hz is suitable for promoting bone formation; 14-60Hz is suitable for chronic pain; 50-150Hz is suitable for postoperative pain; 15-180Hz is suitable for herpes pain; 30-120Hz is suitable for pain after peripheral nerve injury, etc. People with different physical constitutions can use different current intensities. This requires customizing different physical therapy modes according to different symptoms and different groups of people.

The working principle and steps of this embodiment are as follows:

Step S1: The user fixes the analgesic chip to the human body and contacts the metal contact 104 to the skin. The analgesic chip is installed and fixed on a wearable product, such as a wristband, a waistband, etc.

Step S2, open the mobile terminal 200 mobile phone APP, start the analgesic chip, set the pulse frequency and pulse amplitude, and the APP sends the data to the MCU of the analgesic chip via Bluetooth.

Step S3, the MCU generates the amplitude information and frequency information of the low-frequency pulse signal according to the data information. On the one hand, the MCU sends the amplitude information to the D/A converter 1011 of the signal generator through the first output terminal to generate an amplitude analog signal of the pulse; on the other hand, the MCU sends the frequency information to the control end of the transistor switch of the signal generator through the second output terminal.

Step S4: The signal generator outputs a low-frequency pulse signal to provide analgesia to the patient.

The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims (1)

1. An analgesic chip, characterized in that the analgesic chip is placed in a wearable device, comprising: a low-frequency signal generator (101) module, an MCU microcontroller module (102), a Bluetooth module (103) and a rechargeable battery module;

The first output end of the MCU microcontroller module (102) is connected with the pulse amplitude control end of the low-frequency signal generator (101) module; the second output end of the MCU microcontroller module (102) is connected with the pulse frequency control end of the low-frequency signal generator (101) module;

The MCU microcontroller module (102) is connected with the Bluetooth module (103) in a bidirectional manner; the rechargeable battery module supplies power for the low-frequency signal generator (101) module, the MCU microcontroller module (102) and the Bluetooth module (103);

The Bluetooth module (103) is used for exchanging data with the mobile terminal (200); the data comprises frequency information and intensity information of low-frequency pulses;

the MCU microcontroller module (102) is used for performing signal processing on the exchange data and controlling the low-frequency signal generator (101) module to generate a low-frequency signal;

the output end of the low-frequency signal generator (101) module is provided with a metal contact (104) for conducting the low-frequency signal to a human body;

The signal generator module includes: a D/A converter (1011) and a triode switch circuit (1012); the input end of the D/A converter (1011) is connected with the first output end of the MCU microcontroller, the control end of the triode switch circuit (1012) is connected with the second output end of the MCU microcontroller, the D/A converter (1011) is used for adjusting the pulse amplitude of the low-frequency pulse signal, and the triode switch circuit (1012) is used for adjusting the pulse frequency of the low-frequency pulse signal; the analog voltage output end of the D/A converter (1011) is connected with the voltage input end of the triode switch circuit (1012), and the voltage output end of the triode switch circuit (1012) is connected with the metal contact (104);

The low-frequency pulse signal comprises a plurality of groups of intermittent pulses with total period of T _i, and i is a positive integer; each group of intermittent pulses comprises a plurality of pulses with the period of T _(i,j) and the duration of T _(i,j,1), and j is a positive integer; wherein, T _i、T_(i,j)、T_(i,j,1) is adjustable, and T _i>0、T_(i,j)>0、T_(i,j,1) is more than 0;

The low-frequency pulse signal comprises two groups of intermittent pulses with different total periods, wherein the first group of intermittent pulses comprises three pulses, and the period lengths and the duration lengths of the three pulses are different;

The frequency information and intensity information of the low frequency pulse transmitted by the mobile terminal (200) include: pulse frequency set point, pulse intensity set point, pulse frequency boost, pulse frequency decrease, pulse intensity boost, or pulse intensity decrease;

The frequency of the low-frequency pulse is 1HZ-500HZ; the width of the low-frequency pulse is 40-1000 mu s; the intensity of the low-frequency pulse is 1mA-50mA.