CN110251145A - An auto-regulating pressure vest to soothe hyperactivity of autistic patients - Google Patents

Abstract

The invention provides an automatic adjustment pressure vest for appeasing the excessive reaction of autism patients. , Inflation and deflation module and power supply; the heart sound acquisition module is used to collect the heart sound signal, and the processing module controls the inflation and deflation module to inflate or pump the inner bladder according to the collected heart sound signal. By monitoring the heart sound signal of autistic patients in real time, the invention can quickly inflate the inflatable inner bladder when the user needs to be comforted, increase the pressure of the vest, and produce effects quickly, and when the pressure reaches a preset threshold, the valve is automatically closed to maintain the deep contact pressure The effect is to apply deep contact pressure to the patient; after the user is calm, the inflatable liner is quickly pumped to eliminate the pressure. The vest of the invention has no harm to human body and high safety.

Description

An auto-regulating pressure vest to soothe hyperactivity of autistic patients

technical field

The invention belongs to the field of medical devices, and in particular relates to an automatic pressure-adjusting vest for soothing autistic patients.

Background technique

People with autism will at some point overreact to harmless things because they are always nervous and scared. Excessive responses may be due to fearful stimuli or environmental stimuli. Patients who are overreacted are prone to destructive or risky behaviors. Domestic treatment for autistic patients only stays at the level of training in rehabilitation institutions. The treatment cycle is long and the effect is not very satisfactory. There is no plan for timely relief of symptoms for autistic patients with excessive reactions. Studies have found that the force of a stroking is like tickling or hair moving across the skin. This type of contact stimulates the nervous system and induces vigilance, in addition to making a person agitated. And "deep contact pressure," which is more force than the former, has been shown to restore calm to the patient. At present, it is necessary to find a standardized treatment plan for autism, especially a device that can relieve the excessive reaction of autistic patients in a timely manner, so as to reduce the self-injury of patients.

SUMMARY OF THE INVENTION

In order to effectively solve the above problems, the present invention provides a wearable vest. By monitoring the heart sound signal of autistic patients in real time, the inflatable inner bladder can be quickly inflated when the user needs to be comforted, the pressure of the vest can be increased, and the effect can be quickly produced. When a preset threshold is reached, the valve is automatically closed to maintain the deep contact pressure effect. After the user is calm, the inflatable liner is quickly pumped to relieve the pressure.

In order to achieve the above object, the technical scheme adopted in the present invention is as follows:

The self-adjusting pressure vest to soothe the hyperreaction of autistic patients, including a sleeveless vest, a heart sound acquisition module, a processing module, an inflation and deflation module and a power supply;

The inner layer and outer layer of the sleeveless vest are made of fabric, and the middle layer integrates a heart sound acquisition module, a processing module, an inflating and deflating module and a power supply;

The heart sound acquisition module is composed of a heart sound acquisition sensor, a signal amplifying circuit, and an analog-to-digital conversion chip connected in sequence. The heart sound sensor collects the heart sound and converts it into an analog signal. The signal is converted into a digital signal;

The processing module receives and analyzes the digital signal, and sends instructions to the inflation and deflation module;

The charging and discharging module consists of an air pump, a hose, an inner tank, a pressure gauge, and an electric valve. The inner tank is connected to the air pump through a hose. A pressure gauge and an electric valve are installed at the hose connecting the air pump. The pressure gauge test results, control the air pump to inflate or pump the air through the hose;

The heart sound acquisition module, the processing module, and the inflatable module are connected in sequence, and the power supply supplies power to these three modules at the same time.

Further, the inner bladder is of a dispersed structure and is composed of a plurality of strip inner bladders, and the size, number and interval of the inflatable inner bladders can be adjusted according to the model of the vest.

Further, the two sides of the sleeveless vest are provided with long strips of Velcro, which can bond the front and rear parts of the vest together.

Further, the analog-to-digital conversion chip is an ADC7606 chip.

Further, the processing module is a single-chip microcomputer, and the single-chip microcomputer is an MSP430F149IPM single-chip microcomputer.

Further, the heart sound collection sensor is an electret microphone.

Further, the single-chip computer extracts the frequency and intensity from the received digital signal, and compares it with the frequency intensity range of normal heart sounds. When both the frequency and the intensity exceed the normal heart sound signal range, an inflation command is issued to the inflation and deflation module; then Continue to receive the signal sent by the heart sound acquisition module, extract and compare until the frequency and intensity return to the normal range, and issue a pumping command to the inflation and deflation module.

Further, the pressure gauge detects the pressure of the inner bladder in real time. When the inner bladder pressure reaches the upper limit, the electric valve is closed and no longer inflates; when the inner bladder pressure reaches the lower limit, the electric valve is also closed, and no air is pumped.

Further, the inner layer fabric of the sleeveless vest is polyester fiber, and the outer layer fabric is gore-tex fabric.

The invention has the following beneficial effects: it can detect the hyperactive state of the autistic patient in real time, automatically inflate the patient, apply deep contact pressure to the patient, and the effect is quick. Both sides of the vest are fixed with Velcro, which is convenient to wear, and the tightness can be adjusted according to the user's body shape, and has a wide range of applications. Moreover, the vest of the present invention has no harm to the human body and has high safety.

Description of drawings

FIG. 1 is a schematic structural diagram of the self-adjusting pressure vest according to the present invention.

FIG. 2 is a schematic diagram of the structural principle of the self-adjusting pressure vest of the present invention.

FIG. 3 is a schematic diagram of the functional flow of the present invention.

Figure 4 is the digital signal received by the microcontroller.

The reference numbers are as follows:

1- Velcro; 2- Inner tank; 3- Power supply; 4- Air pump; 5- Electric valve; 6- Hose; 7- Microcontroller; 8- Electret microphone; 9- Voltmeter.

Detailed ways

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

As shown in FIG. 1 , the pressure vest according to the present invention includes a sleeveless vest, a heart sound acquisition module, a processing module, an inflation and deflation module, and a power supply 3 . The electret microphone 8 of the heart sound collection module is fixed on the left chest position of the center layer of the sleeveless vest. The processing module is the MSP430F149IPM single-chip microcomputer, which has the functions of processing the heart sound signal and controlling the air pump 4 and the electric valve 5 . The two sides of the sleeveless vest are bonded by long strips of Velcro 1. The structure of the sleeveless vest is divided into three layers. The outer layer and the inner layer are all fabrics. . The outer fabric of the sleeveless vest is gore-tex fabric, and the inner fabric of the sleeveless vest is polyester fiber fabric. The inflating and deflating module is composed of an air pump 4 , a hose 6 , an inflatable inner tank 2 , a pressure gauge 9 , and an electric valve 5 . The inflatable inner bladder 2 communicates with the air pump 4 through a hose 6 , and a pressure gauge 9 and an electric valve 5 are installed at the hose 6 connecting the air pump 4 .

The electret microphone 8 detects the wearer's heart sound signal in real time, and transmits the digital heart sound signal to the single-chip microcomputer 7 after passing through the signal amplification circuit and the analog-to-digital conversion circuit. As shown in Figure 4, the digital signal received by the single-chip microcomputer has 4 signal segments in each cycle, which are the first, second, third, and fourth digital signals. Compare the strength and frequency of the first and second signals with the normal heart sound signal strength and frequency range. When the strength and frequency of the first and second signals are all out of the normal range, send an inflation command to the inflation and deflation module.

After receiving the inflation command, the electric valve 5 is opened, the air pump 4 inflates the inflatable bladder 2 through the light hose 6, the inner bladder 2 expands, and exerts deep contact pressure on the wearer's body surface to relieve the patient's emotions.

When the pressure gauge 9 at the electric valve 5 detects the upper limit of the pressure of the inflatable inner bladder 2, the single-chip 7 controls the electric valve 5 to close, and the air pump 4 stops working.

When the strength and frequency of the wearer's first and second signals return to normal, the single-chip microcomputer 7 controls the electric valve 5 to close, and the air pump 4 pumps air to the inflatable inner bladder 2 through the light hose 6, and the inflatable inner bladder 2 compresses. 9. When it is detected that the pressure value of the inflatable liner 2 is lower than the lower limit, the single-chip microcomputer 7 controls the electric valve 5 to close, and the air pump 4 stops working.

Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or to perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1. a self-regulating pressure vest for soothing autistic patient's excessive reaction, is characterized in that, comprises sleeveless vest, heart sound acquisition module, processing module, inflating and deflating module and power supply; The inner layer and outer layer of the sleeveless vest are made of fabric, and the middle layer integrates a heart sound acquisition module, a processing module, an inflating and deflating module and a power supply; The heart sound acquisition module is composed of a heart sound acquisition sensor, a signal amplifying circuit, and an analog-to-digital conversion chip connected in sequence. The heart sound sensor collects the heart sound and converts it into an analog signal. The signal is converted into a digital signal; The processing module receives and analyzes the digital signal, and sends instructions to the inflation and deflation module; The charging and discharging module is composed of an air pump, a hose, an inner tank, a pressure gauge, and an electric valve. The inner tank is connected to the air pump through a hose. A pressure gauge and an electric valve are installed at the hose connecting the air pump. The test result of the pressure gauge controls the air pump to inflate or pump the air through the hose; The heart sound acquisition module, the processing module, and the inflatable module are connected in sequence, and the power supply supplies power to these three modules at the same time. 2 . The self-adjusting pressure vest according to claim 1 , wherein the inner bladder is of a dispersed structure and is composed of a plurality of strip-shaped inner bladders. 3 . 3 . The self-adjusting pressure vest according to claim 1 , wherein the sleeveless vest is provided with long strips of Velcro on both sides. 4 . 4 . The self-adjusting pressure vest according to claim 1 , wherein the analog-to-digital conversion chip is an ADC7606 chip. 5 . 5 . The automatic adjustment pressure vest according to claim 1 , wherein the processing module is a single-chip microcomputer, and the single-chip microcomputer is an MSP430F149IPM single-chip microcomputer. 6 . 6 . The self-adjusting pressure vest according to claim 1 , wherein the heart sound collection sensor is an electret microphone. 7 . 7. automatic adjustment pressure vest according to claim 5, is characterized in that, described single-chip computer extracts frequency and intensity in the digital signal received, and compares with the frequency intensity range of normal heart sound respectively, and frequency and intensity both exceed normal When the heart sound signal is in the range, send an inflation command to the inflation and deflation module; then continue to receive the signal from the heart sound acquisition module, extract and compare until the frequency and intensity return to the normal range, and issue a pumping command to the inflation and deflation module . 8. The self-adjusting pressure vest according to claim 1, wherein the pressure gauge detects the pressure of the inner bladder in real time, and the electric valve is closed when the inner bladder pressure reaches the upper limit, and is no longer inflated; when the inner bladder pressure reaches the lower limit, the electric valve is closed. Also closed, no more pumping. 9 . The self-adjusting pressure vest according to claim 1 , wherein the inner layer fabric of the sleeveless vest is polyester fiber, and the outer layer fabric is gore-tex fabric. 10 .