CN217066407U - Portable Wireless Heart Sound and ECG Synchronization Acquisition Device - Google Patents

Abstract

The utility model belongs to the technical field of the medical treatment detects. The portable wireless heart sound and electrocardio synchronous acquisition device consists of a heart sound sensor 1, an electrocardio electrode plate 2, an AD7606 module 3, a microcontroller STM32 module 4, an electrocardio amplifier AD8232 module 5 and a Bluetooth module 6; the output of the heart sound sensor 1 is connected to one of the input ends of an AD7606 module 3, the electrocardio electrode plates 2 are three, the electrocardio lead wires are respectively connected to the input end of an electrocardio amplifier AD8232 module 5, the output end of the AD8232 module 5 is connected to the second input end of the AD7606 module 3, the AD7606 module 3 is connected with an STM32 module 4, the STM32 module 4 is connected with a Bluetooth module 6, and a rechargeable battery 10 is used for supplying power to each module. The utility model discloses heart sound, electrocardiosignal's synchronous acquisition have been reached.

Description

Portable Wireless Heart Sound and ECG Synchronization Acquisition Device

technical field

The utility model belongs to the technical field of medical detection, and in particular relates to a wireless heart sound and electrocardiogram collection device using Internet+AI technology.

Background technique

Congenital heart disease (abbreviated as congenital heart disease) is a kind of heart disease that is common in cardiovascular diseases, and it mostly occurs in remote mountainous areas and villages with poor medical conditions. The initial diagnosis of congenital heart disease mainly relies on cardiac auscultation, which requires professional knowledge and clinical experience. Suspected patients screened at the initial diagnosis were confirmed by echocardiography. However, the equipment is expensive and difficult to popularize in township hospitals, and the equipment is too large to carry, and the inspection cost is high, making it inconvenient to use in large-scale congenital heart disease screening.

Chinese Patent Application No. 201910001236.X provides a heart sound detection device, a method for acquiring a heart sound signal, and a configuration method for a heart sound monitoring device, aiming to solve the problems of finding the best auscultation position in the auscultation process, difficult to operate and cumbersome processes in the auscultation process . The device includes: a plurality of heart sound sensors, which are respectively configured to correspond to different heart sound auscultation positions in the area to be detected, and can collect vibration signals at different positions, and determine the best auscultation position in the auscultation process through the heart sound localizer. The sensors used in the device are relatively expensive and not suitable for purchase, and are not suitable for auxiliary diagnosis by doctors and promotion in rural areas.

Chinese Patent Application No. 201911387093.7 discloses a wearable heart sound monitoring device, which aims to detect heart sound signals non-invasively with less cost. The device includes a single-lead heart sound device and a wearable device. The single-lead heart sound device is used to be attached to the position of the heart, the wearable device is used to be worn on the patient's wrist, and the single-lead heart sound device collects the heart sound signal and sends the heart sound signal. Go to the cloud, the cloud will analyze and send the analysis results back to the wearable device, and the display screen on the wearable device will display the judgment result, the prompt light will flash, the speaker will sound a prompt, and the vibration head will vibrate to notify the heart disease patient, reminding the working state of the heart. . The wearable device is suitable for self-care of patients with heart disease, but is slightly cumbersome for patients and not suitable for clinicians.

Chinese Patent Application No. 201921929240.4 discloses a heart sound signal wireless acquisition system based on microcontroller STM32, the system includes a heart sound sensor module, STM32 module, AD7606 module and JDY-31 module. The analog signal from the heart sound sensor is sampled by the AD7606 module, and then the sampled value is wirelessly transmitted to the mobile terminal of the mobile phone through the Bluetooth device, and the visualization of the data is realized on the mobile terminal of the mobile phone. But the device cannot collect ECG data.

SUMMARY OF THE INVENTION

The purpose of the utility model is to overcome the defects of the prior art, and to provide a portable wireless heart sound and electrocardiogram synchronous acquisition device which is reliable in performance and can synchronously collect heart sounds and electrocardiogram signals.

The portable wireless heart sound and electrocardiogram synchronous acquisition device of the utility model is composed of a heart sound sensor, an electrocardiogram electrode sheet and a wireless acquisition and analysis system. Module, ECG amplifier AD8232 module, Bluetooth module, and put it into the device shell; the output of the heart sound sensor is connected to one of the input ends of the AD7606 module through an audio cable. It is connected to the input end of the AD8232 module of the ECG amplifier. The output end of the AD8232 module is connected to the second input end of the AD7606 module. The output of the AD7606 module is connected to the STM32 module through the SPI interface, and the STM32 module is connected to the Bluetooth module through the I/O port. A power switch and a two-color LED indicator light are fixed on the top of the device shell. The indicator light is connected to the I/O port of the STM32 module. There is a rechargeable battery in the device shell, and the bottom of the device shell has a USB interface. The rechargeable battery Connect with AD7606 module, AD8232 module, STM32 module, Bluetooth module and USB interface respectively.

The heart sound sensor of the portable wireless heart sound and electrocardiogram synchronous acquisition device of the utility model adopts the American Thinklabs ONE heart sound sensor or the domestic similar heart sound sensor.

Brief description of the operation of the device of the utility model: The device can be applied to the initial clinical diagnosis of congenital heart disease and other heart diseases. When the doctor is collecting the signal, the heart sound sensor is placed on the heart of the subject's chest. Three ECG electrodes are placed on the left and right inner wrists and right ankle of the subject. The heart sound sensor and the ECG amplifier AD8232 The module converts the heart sound signal and the ECG signal into an analog electrical signal; and the analog-to-digital conversion AD7606 module converts the analog signal from the heart sound sensor and the ECG amplifier AD8232 module into a digital signal, and transmits it to the STM32 module through the SPI interface. The data received by the STM32 module from the analog-to-digital conversion AD7606 module is sent to the smart mobile terminal via the Bluetooth module, and the smart mobile terminal can display the diagnosis result on its screen after processing the received signal. The intelligent mobile terminal can also transmit data to the cloud server for diagnosis and processing through the Internet, and at the same time receive the analysis results from the cloud and display it on the intelligent mobile terminal.

A power switch and a two-color LED indicator light are fixed on the top of the outer casing of the device. The indicator light is connected to the I/O port of the STM32 and can be used to display the system power and working status. The entire device is controlled by the STM32 module. The wireless acquisition and analysis system is powered by a rechargeable battery, and is also equipped with a USB interface to charge the heart sound sensor. The device can send the collected heart sounds and ECG signals to smart mobile terminals such as mobile phones and tablet computers (pad) through the Bluetooth module for analysis and display, and upload them to the cloud server for diagnosis and analysis at the same time, achieving the synchronization of heart sounds and ECG signals. collection.

The portable wireless heart sound and electrocardiogram acquisition device of the utility model is based on the STM32 module congenital heart disease and other initial diagnosis equipment for other heart diseases. The analog-to-digital conversion module converts the analog electrical signal into a digital signal, and transmits it to the STM32 module through the SPI interface. The STM32 module is connected to the Bluetooth module through the I/O port and sends the heart sounds and ECG signals to the smart mobile terminal. The smart mobile terminal can also upload to the cloud for diagnosis and processing through a wireless connection, and display the analysis results on the smart mobile terminal.

Compared with the acquisition devices currently on the market, the utility model provides a portable wireless acquisition device that is small in size, low in cost, simple in use, and can synchronously acquire the heart sound signal and the electrocardiographic signal, which overcomes the problems of the current market. The heart sound and ECG collection system is too bulky, inconvenient to carry, and expensive. It is suitable for the initial clinical diagnosis of congenital heart disease and other heart diseases, and is suitable for areas with high incidence of congenital heart disease and township hospitals with poor medical conditions. To promote the use. The utility model is convenient to carry, and can collect heart sounds and electrocardiogram signals in congenital heart disease screening, and analyze them through an intelligent mobile terminal or upload them to the cloud for in-depth analysis and diagnosis. In order to screen out suspected patients in time and get medical intervention as soon as possible.

Description of drawings

Fig. 1 is the principle block diagram of the present utility model.

Figure 2 is a schematic structural diagram of the present invention.

FIG. 3 is a relative position diagram inside the casing of the present invention.

In the picture: 1- Heart sound sensor, 2- ECG electrode pad, 3- AD7606 module, 4- STM32 module, 5- ECG amplifier AD8232 module, 6- Bluetooth module, 7- Device shell, 8- Power switch, 9 -Dual-color LED indicator, 10-rechargeable battery, 11-USB interface.

Detailed ways

The present utility model will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figure 2, the utility model is composed of 11 parts: heart sound sensor 1, ECG electrode sheet 2, AD7606 module 3, STM32 module 4, ECG amplifier AD8232 module 5, Bluetooth module 6, equipment shell 7, power supply A switch 8 , a bi-color LED indicator 9 , a rechargeable battery 10 and a USB interface 11 are formed. Heart sound sensor 1 adopts American Thinklabs ONE heart sound sensor or domestic similar heart sound sensor; wireless acquisition and analysis system consists of 16-bit analog-to-digital conversion AD7606 module 3, microcontroller STM32 module 4, ECG amplifier AD8232 module 5, Bluetooth module 6 It is constructed and placed in the outer casing 7 of the device. When collecting signals, the heart sound sensor is placed in the heart of the subject, and its output is connected to one of the inputs of AD7606 module 3 through an audio cable; three ECG electrodes 2 are placed on the left and right wrists and the right On the ankle, the lead wire is connected to the input end of module 5 of AD8232 of ECG amplifier, and the output end of module 5 is connected to the second input end of module 3 of AD7606. For the sake of convenience, the lead wires of the three ECG electrode pieces 2 are encapsulated in a lead cable, the output of the analog-to-digital conversion module 3 is connected to the STM32 module 4 through the SPI interface, and the STM32 module 4 is connected to the Bluetooth module through the I/O port. 6 connections. A power switch 8 and a two-color LED indicator light 9 are fixed on the top of the outer casing 7 of the equipment. The indicator light 9 is connected to the I/O port of the STM32 module 4 and can be used to display the system power and working status. The entire device is controlled by STM32. The whole system is powered by a rechargeable battery 10 , and is also equipped with a USB interface 11 , which can charge the heart sound sensor 1 . Therefore, the rechargeable battery 10 is connected to the AD7606 module 3 , the AD8232 module 5 , the STM32 module 4 , the Bluetooth module 6 and the USB interface 11 respectively. The Bluetooth module 6 can use JDY-34.

The Bluetooth module described in this embodiment sends the heart sounds and ECG data processed by STM32 to the smart mobile terminal. The smart mobile terminal can also upload to the cloud for diagnosis and processing through a wireless connection, and display the analysis results on the smart mobile terminal in real time.

The heart sound sensor, AD7606 module, STM32 module, Bluetooth JDY-34 module, and ECG amplifier AD8232 module are all easy to buy in the market, and the circuit design is simple and easy to implement.

Claims (2)

1. A portable wireless heart sound and electrocardio synchronous acquisition device is characterized by comprising a heart sound sensor (1), an electrocardio electrode plate (2) and a wireless acquisition and analysis system, wherein the wireless acquisition and analysis system consists of an analog-to-digital conversion AD7606 module (3) with the resolution of 16 bits, a microcontroller STM32 module (4), an electrocardio amplifier AD8232 module (5) and a Bluetooth module (6), and is placed in an equipment outer shell (7); the output of heart sound sensor (1) is connected to one of the input end of AD7606 module (3) through audio cable, electrocardio electrode slice (2) are three, the input end of electrocardio amplifier AD8232 module (5) is connected to by electrocardio lead line respectively, the output of AD8232 module (5) is connected to two of the input end of AD7606 module (3), the output of AD7606 module (3) links to each other with STM32 module (4) through the SPI interface, STM32 module (4) are connected with bluetooth module (6) through the IO mouth, the top of equipment shell (7) is fixed with a switch (8) and a double-colored LED pilot lamp (9), pilot lamp (9) are connected to the IO mouth of STM32 module (4), there is chargeable battery (10) in equipment shell (7), there is USB interface (11) bottom of equipment shell (7), chargeable battery (10) respectively with AD 06 module (3), The AD8232 module (5), the STM32 module (4), the Bluetooth module (6) and the USB interface (11) are connected.

2. The portable wireless device for synchronously acquiring the heart sounds and the electrocardio-signals as claimed in claim 1, wherein the heart sound sensor is a U.S. Thinklabs ONE heart sound sensor.

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