CN213309843U

CN213309843U - Intelligent auscultation device

Info

Publication number: CN213309843U
Application number: CN202021999442.9U
Authority: CN
Inventors: 王劲松; 崔国军; 鲁新宇; 张雪莹; 郭宏伍
Original assignee: Changchun Yandongli Technology Co ltd
Current assignee: Changchun Yandongli Technology Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-06-01
Anticipated expiration: 2030-09-14

Abstract

The utility model discloses an intelligent auscultation device, which relates to the technical field of medical electronics and comprises a sound cavity, an earphone, an audio processing module, an electrocardio module, a microcontroller and a signal processing module; the sound cavity is connected with the signal processing module, the signal processing module is connected with the audio processing module, the electrocardio module is connected with the microcontroller, the microcontroller is respectively connected with the audio processing module and the remote network medical system, and the audio processing module is connected with the earphone; the ECG electrocardiosignals can be collected through the electrocardio module while the sounds of the heart, the lung, the costal region or the abdomen are collected through the sound cavity. The utility model discloses an intelligence auscultation device can detect heart sound and lung sound simultaneously and contains ECG electrocardiosignal and detect the function.

Description

Intelligent auscultation device

Technical Field

The utility model relates to a medical treatment electron technical field especially relates to an intelligent auscultation device.

Background

In the detection of heart sounds and lung sounds, the traditional stethoscope detection method has great limitations. The auscultation device is an ear-hanging auscultation device with a sound guide tube, which is the most commonly used diagnosis tool for doctors, mainly comprises a pickup part (a chest piece), a conduction part (a rubber tube) and an auscultation part (an ear piece), and mainly has the function of collecting and amplifying the sounds emitted from organs such as heart, lung, artery and the like, so as to diagnose the cardiopulmonary diseases.

The ear-hung auscultation device with the sound guide tube is only used by doctors, and testers must go to a hospital or clinic to perform heart sound and lung sound detection, so that the risk of cross infection is increased, and great inconvenience is brought to medical patients in areas with scarce medical resources; for a doctor examining a patient, the ear-hung auscultation device with the sound guide tube is easy to be doped with other environmental interference noise, so that the doctor cannot capture weak heart sound and breath sound signals easily, and can ignore part of information easily; in order to reduce the interference of external noise, the ear hook has a large clamping force on ears, brings great discomfort to the ears of doctors, and cannot be worn for a long time; the diagnosis of the heart sound and the lung sound of the patient is given only by the experience of the patient, the diagnosis is delayed, the cost is high, the accuracy is not high, the sizes of the heart sound and the lung sound are transmitted to the ears of a doctor through the sound guide tube, the sound is not very large, the misjudgment and misdiagnosis of the doctor can be caused, and certain trouble is brought to the patient and the patient; the detected data can not be stored in real time, the contrast is poor, and great inconvenience is brought to the follow-up diagnosis. The traditional auscultation device can only solve the problem of detection through cardiopulmonary sounds, does not have ECG (electrocardiogram) electrocardiographic detection data, reduces the comprehensiveness of data of primary detection of a detector, and can lack necessary analysis data when dealing with some complex symptoms such as palpitation and chest pain, but the traditional 12-lead electrocardiograph is large, expensive in selling price, needs to establish leads when being measured, needs to be operated by a professional doctor, and consumes a long time.

In summary, the ear-hanging type auscultation device with the sound guide tube in the market has the following problems: 1) patients cannot detect their own health status in real time; 2) external and internal noise interference is not beneficial to accurate diagnosis of doctors; 3) the uncomfortable feeling of the doctor wearing the auscultation device during detection; 4) the diagnosis is given empirically and cannot be made accurately; 5) the sounds of heart and lung sounds are small; 6) there is a risk of cross-infection; 7) the problem of lack of real-time storage and calling of data and the like; 8) there is no ECG electrocardiographic detection function. Therefore, there is a need in the art for a new auscultation device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an intelligence auscultation device can detect heart sound and lung sound simultaneously and contain ECG electrocardiosignal detection function.

In order to achieve the above object, the utility model provides a following scheme:

an intelligent auscultation device, the device comprising: the device comprises a sound cavity, an earphone, an audio processing module, an electrocardio module, a microcontroller and a signal processing module; the sound cavity is connected with the signal processing module, the signal processing module is connected with the audio processing module, the electrocardio module is connected with the microcontroller, the microcontroller is respectively connected with the audio processing module and a remote network medical system, and the audio processing module is connected with the earphone;

the sound cavity is used for collecting sound signals of the heart, the lung, the rib or the abdomen, converting the sound signals into sound electric signals and sending the sound electric signals to the signal processing module;

the signal processing module is used for amplifying and filtering the sound electric signal and sending the amplified and filtered sound electric signal to the audio processing module;

the audio processing module is used for sending the amplified and filtered sound electric signal to the earphone; the audio processing module is further configured to convert the amplified and filtered sound electrical signal into a sound digital signal according to a switch instruction sent by the microcontroller, perform smooth denoising, frequency division and signal enhancement processing on the sound digital signal, and send the processed sound digital signal to the microcontroller;

the ECG module is used for acquiring ECG electrocardiosignals, converting the ECG electrocardiosignals into ECG electric signals, amplifying and filtering the ECG electric signals, and sending the amplified and filtered ECG electric signals to the microcontroller;

the microcontroller is used for converting the amplified and filtered ECG electrical signals into ECG digital signals, performing signal denoising, ECG feature extraction and ECG signal contrast enhancement processing on the ECG digital signals, storing the processed ECG digital signals, and sending the processed ECG digital signals to the remote network medical system through a BLE Bluetooth protocol; the microcontroller is also used for storing the processed sound digital signal and sending the sound digital signal to the remote network medical system through a BLE Bluetooth protocol.

Optionally, the sound cavity specifically comprises EVA foam, a rubber pad and a piezoelectric ceramic sheet;

the rubber pad is wrapped outside the piezoelectric ceramic piece; the EVA foam is wrapped outside the rubber pad; the piezoelectric ceramic piece is connected with the signal processing module;

the piezoelectric ceramic piece is used for collecting sound signals of the heart, the lung, the costal region or the abdomen, converting the sound signals into sound electric signals and sending the sound electric signals to the signal processing module.

Optionally, the audio processing module specifically includes an audio encoding and decoding chip, a power amplifier circuit, and an audio interface;

the audio coding and decoding chip is respectively connected with the signal processing module, the microcontroller and the power amplifier circuit, the power amplifier circuit is connected with the audio interface, and the audio interface is connected with the earphone;

the audio coding and decoding chip is used for receiving the amplified and filtered sound electric signal sent by the signal processing module and sending the amplified and filtered sound electric signal to the power amplifier circuit; the audio coding and decoding chip is also used for converting the amplified and filtered sound electric signal into a sound digital signal according to a switching instruction sent by the microcontroller, performing smooth denoising, frequency division and signal enhancement processing on the sound digital signal, and sending the processed sound digital signal to the microcontroller;

the power amplifier circuit is used for amplifying the amplified and filtered sound electric signal again and sending the amplified sound electric signal to the audio interface;

and the audio interface is used for sending the amplified sound electric signal to the earphone.

Optionally, the electrocardiograph module specifically includes 2 ECG signal electrodes and an ECG signal processing circuit;

the ECG signal processing circuit comprises a front-end instrument amplifier circuit and a front-end secondary amplification filter circuit; the front-end instrument amplifier circuit is respectively connected with the ECG signal electrode and the front-end secondary amplification filter circuit, and the front-end secondary amplification filter circuit is connected with the microcontroller;

the 2 ECG signal electrodes are used for acquiring ECG electrocardiosignals and converting the ECG electrocardiosignals into ECG electric signals;

the front-end instrument amplifier circuit is used for amplifying the ECG electric signal and sending the amplified ECG electric signal to the front-end secondary amplification filter circuit;

the front-end secondary amplification filter circuit is used for filtering interference signals in the amplified ECG electrical signals and sending the ECG electrical signals with the interference signals filtered to the microcontroller.

Optionally, the apparatus further comprises a mobile terminal;

the mobile terminal is respectively connected with the microcontroller and the remote network medical system;

the mobile terminal is used for displaying the processed sound digital signal and the processed ECG digital signal which are sent by the microcontroller through a BLE Bluetooth protocol and sending the processed sound digital signal and the processed ECG digital signal to the remote network medical system;

the mobile terminal is also used for receiving a diagnosis result obtained by analyzing the processed sound digital signal and the processed ECG digital signal by the remote network medical system and displaying the diagnosis result.

Optionally, the signal processing module specifically includes an operational amplifier circuit and a filter circuit;

the operational amplifier circuit is connected with the sound cavity; the filter circuit is connected with the audio processing module;

the operational amplifier circuit is used for amplifying the sound electric signal sent by the sound cavity and sending the amplified sound electric signal to the filter circuit;

the filter circuit is used for filtering the amplified sound electric signal and sending the filtered sound electric signal to the audio processing module.

Optionally, the device further comprises a mode switching key, a first LED lamp group, a second LED lamp group, a third LED lamp group and a fourth LED lamp group;

the mode switching key is respectively connected with the first LED lamp group, the second LED lamp group, the third LED lamp group and the fourth LED lamp group; the first LED lamp group, the second LED lamp group, the third LED lamp group and the fourth LED lamp group are all connected with the microcontroller;

the mode switching key is used for controlling the first LED lamp group, the second LED lamp group, the third LED lamp group or the fourth LED lamp group to emit light; when the mode switching key is pressed once, the first LED lamp group, the second LED lamp group, the third LED lamp group or the fourth LED lamp group emit light, and the mode is switched once;

the modes specifically comprise a high-frequency mode, a medium-frequency mode, a low-frequency mode and a full-frequency mode; the high frequency mode measures heart diaphragm sounds, the medium frequency mode measures lung sounds, the low frequency mode measures abdominal sounds, and the full frequency mode measures all sounds; the first LED lamp group emits light to indicate the high-frequency mode, the second LED lamp group emits light to indicate the medium-frequency mode, the third LED lamp group emits light to indicate the low-frequency mode, and the fourth LED lamp group emits light to indicate the full-frequency mode; and the microcontroller acquires a mode selected by a user according to the light emitting conditions of the first LED lamp group, the second LED lamp group, the third LED lamp group and the fourth LED lamp group.

Optionally, the device further comprises a battery module;

the battery module is connected with the microcontroller; the battery module is used for supplying power to the microcontroller.

Optionally, the apparatus further comprises a wireless charging module;

the wireless charging module is respectively connected with the battery module and the microcontroller;

the wireless charging module is used for acquiring the residual electric quantity of the battery module in real time and sending the residual electric quantity to the microcontroller; the microcontroller controls the light emitting conditions of the first LED lamp group, the second LED lamp group, the third LED lamp group and the fourth LED lamp group according to the residual electric quantity; indicating that the remaining capacity is 100% when the first, second, third, and fourth LED light groups all emit light; indicating that the remaining capacity is 75% when the first, second, and third LED light groups are all lit; indicating that the remaining capacity is 50% when both the first LED light group and the second LED light group emit light; indicating that the remaining capacity is 25% when only the first LED light group is illuminated;

the wireless charging module is also used for being placed on a wireless charger to charge the battery module.

Optionally, the microcontroller is of type CY8C4248LQI-BL 573.

According to the utility model provides a concrete embodiment, the utility model discloses a following technological effect:

the utility model discloses an intelligent auscultation device, integrate stethoscope and single lead and ally oneself with ECG electrocardio function, structurally collect sound chamber and electrocardio module in an organic whole, when gathering heart, lung, costal part or abdominal sound through the sound chamber, can gather ECG electrocardio signal through electrocardio module, realized detecting heart sound and lung sound simultaneously and contain ECG electrocardio signal detection function; in addition, the sound cavity, the audio processing module, the microcontroller and the signal processing module are used for physically amplifying and electrically processing the sound signals, so that more details can be heard, the sound multiplying power is higher, the extra interference sound signals are removed, and the sound is clearer and more accurate than the sound heard by the traditional stethoscope; the earphone is connected to receive sound, sound monitoring is carried out, the wearing comfort degree of a doctor is greatly improved, and the monitoring quality and efficiency are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a structural diagram of an embodiment 1 of the intelligent auscultation device of the utility model;

fig. 2 is an electrocardio function block diagram of the intelligent auscultation device of the utility model in embodiment 2;

fig. 3 is a functional block diagram of the intelligent auscultation device of the present invention in embodiment 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Example 1:

fig. 1 is a structural diagram of the intelligent auscultation device of the utility model in embodiment 1. Referring to fig. 1, the intelligent auscultation device includes: a sound cavity 101, an earphone 102, an audio processing module 103, an electrocardio module 104, a microcontroller 105 and a signal processing module 106. The sound cavity 101 is connected to the signal processing module 106, the signal processing module 106 is connected to the audio processing module 103, the electrocardiograph module 104 is connected to the microcontroller 105, the microcontroller 105 is respectively connected to the audio processing module 103 and a remote network medical system (not shown in the figure), and the audio processing module 103 is connected to the earphone 102. The microcontroller 105 is of the type CY8C4248LQI-BL 573.

The sound cavity 101 is used for collecting sound signals of the heart, the lung, the rib or the abdomen, converting the sound signals into sound electrical signals, and sending the sound electrical signals to the signal processing module 106.

The sound cavity 101 specifically comprises EVA foam, a rubber pad and a piezoelectric ceramic piece. The rubber pad is wrapped outside the piezoelectric ceramic piece. The EVA foam is wrapped outside the rubber pad. The piezoceramic wafer is connected with the signal processing module 106. The piezoelectric ceramic piece is used for collecting sound signals of the heart, the lung, the rib or the abdomen, converting the sound signals into sound electrical signals, and sending the sound electrical signals to the signal processing module 106.

The signal processing module 106 is configured to perform amplification and filtering processing on the sound electrical signal, and send the amplified and filtered sound electrical signal to the audio processing module 103.

The signal processing module 106 specifically includes an operational amplifier circuit and a filter circuit. The operational amplifier circuit is connected with the sound cavity 101; the filter circuit is connected to the audio processing module 103. The operational amplifier circuit is used for amplifying the sound electrical signal sent by the sound cavity 101 and sending the amplified sound electrical signal to the filter circuit. The filter circuit is configured to perform filtering processing on the amplified sound electrical signal, and send the filtered sound electrical signal to the audio processing module 103.

The audio processing module 103 is configured to send the amplified and filtered sound electrical signal to the earphone 102; the audio processing module 103 is further configured to convert the amplified and filtered sound electrical signal into a sound digital signal according to a switch instruction sent by the microcontroller 105, perform smooth denoising, frequency division and signal enhancement processing on the sound digital signal, and send the processed sound digital signal to the microcontroller 105.

The audio processing module 103 specifically includes an audio encoding and decoding chip, a power amplifier circuit, and an audio interface. The model of the audio coding and decoding chip is tlvaic 3101. The audio encoding and decoding chip is respectively connected with the signal processing module 106, the microcontroller 105 and the power amplifier circuit, the power amplifier circuit is connected with the audio interface, and the audio interface is connected with the earphone 102. The audio encoding and decoding chip is configured to receive the amplified and filtered sound electrical signal sent by the signal processing module 106, and send the amplified and filtered sound electrical signal to the power amplifier circuit. The audio encoding and decoding chip is further configured to convert the amplified and filtered sound electrical signal into a sound digital signal according to a switch instruction sent by the microcontroller 105, perform smooth denoising, frequency division and signal enhancement processing on the sound digital signal, and send the processed sound digital signal to the microcontroller 105. The power amplifier circuit is used for amplifying the amplified and filtered sound electric signal again and sending the amplified sound electric signal to the audio interface. The audio interface is configured to send the re-amplified sound electrical signal to the earphone 102.

The ECG module 104 is configured to acquire an ECG electrical signal, convert the ECG electrical signal into an ECG electrical signal, perform amplification and filtering on the ECG electrical signal, and send the amplified and filtered ECG electrical signal to the microcontroller 105.

The electrocardiograph module 104 specifically includes 2 ECG signal electrodes and an ECG signal processing circuit. The ECG signal processing circuit comprises a front-end instrument amplifier circuit and a front-end secondary amplification filter circuit. The front-end instrument amplifier circuit is respectively connected with the ECG signal electrode and the front-end secondary amplification filter circuit, and the front-end secondary amplification filter circuit is connected with the microcontroller 105. The 2 ECG signal electrodes are used for acquiring ECG electrocardiosignals and converting the ECG electrocardiosignals into ECG electric signals. The front-end instrument amplifier circuit is used for amplifying the ECG electric signal and sending the amplified ECG electric signal to the front-end secondary amplification filter circuit. The front-end secondary amplification and filtering circuit is configured to filter an interference signal in the amplified ECG electrical signal, and send the ECG electrical signal with the interference signal filtered to the microcontroller 105.

The microcontroller 105 is configured to convert the amplified and filtered ECG electrical signal into an ECG digital signal, perform signal denoising, ECG feature extraction, and ECG signal contrast enhancement on the ECG digital signal, store the processed ECG digital signal, and send the processed ECG digital signal to the remote network medical system through a BLE bluetooth protocol; the microcontroller 105 is further configured to store the processed sound digital signal and send the sound digital signal to the remote network medical system through a BLE bluetooth protocol.

The intelligent auscultation device further comprises a mobile terminal 107, a mode switching key (not shown in the figure), a first LED lamp set, a second LED lamp set, a third LED lamp set and a fourth LED lamp set (none shown in the figure), a battery module 108 and a wireless charging module 109. The first LED lamp group, the second LED lamp group, the third LED lamp group and the fourth LED lamp group respectively comprise at least one LED lamp.

The mobile terminal 107 is connected with the microcontroller 105 and the remote network medical system respectively. The mobile terminal 107 is configured to display the processed sound digital signal and the processed ECG digital signal sent by the microcontroller 105 through the BLE bluetooth protocol, and send the processed sound digital signal and the processed ECG digital signal to the remote network medical system. The mobile terminal 107 is further configured to receive a diagnosis result obtained by analyzing the processed sound digital signal and the processed ECG digital signal by the remote network medical system, and display the diagnosis result.

The mode switching key is respectively connected with the first LED lamp group, the second LED lamp group, the third LED lamp group and the fourth LED lamp group; the first LED lamp group, the second LED lamp group, the third LED lamp group, and the fourth LED lamp group are all connected to the microcontroller 105. The mode switching key is used for controlling the first LED lamp group, the second LED lamp group, the third LED lamp group or the fourth LED lamp group to emit light. And when the mode switching key is pressed once, the first LED lamp group, the second LED lamp group, the third LED lamp group or the fourth LED lamp group emit light, and the mode is switched once. The modes specifically include a high-frequency mode, a medium-frequency mode, a low-frequency mode, and a full-frequency mode. The high frequency mode measures heart diaphragm sounds, the medium frequency mode measures lung sounds, the low frequency mode measures abdominal sounds, and the full frequency mode measures all sounds. The first LED lamp group emits light to indicate the high-frequency mode, the second LED lamp group emits light to indicate the medium-frequency mode, the third LED lamp group emits light to indicate the low-frequency mode, and the fourth LED lamp group emits light to indicate the full-frequency mode. The microcontroller 105 obtains the mode selected by the user according to the light emitting conditions of the first LED lamp group, the second LED lamp group, the third LED lamp group and the fourth LED lamp group.

The battery module 108 is connected to the microcontroller 105. The battery module 108 is used to supply power to the microcontroller 105.

The wireless charging module 109 is connected to the battery module 108 and the microcontroller 105, respectively. The wireless charging module 109 is configured to obtain the remaining power of the battery module 108 in real time, and send the remaining power to the microcontroller 105. The microcontroller 105 controls the light emitting conditions of the first LED lamp group, the second LED lamp group, the third LED lamp group and the fourth LED lamp group according to the remaining power. Indicating that the remaining capacity is 100% when the first, second, third, and fourth LED light groups are all lit. Indicating that the remaining capacity is 75% when the first, second, and third LED light groups are all lit. Indicating that the remaining capacity is 50% when both the first LED light group and the second LED light group emit light. Indicating that the remaining capacity is 25% when only the first LED light group is illuminated. The wireless charging module 109 is also used to be placed on a wireless charger to charge the battery module 108.

Example 2:

fig. 2 is the electrocardio function block diagram of the intelligent auscultation device of the utility model in embodiment 2. Fig. 3 is a functional block diagram of the intelligent auscultation device of the present invention in embodiment 2. Referring to fig. 2 and 3, the intelligent auscultation device mainly comprises an electrocardio function and an auscultation function.

The realization of the electrocardio function mainly depends on an electrode 1 and an electrode 2, an ECG signal processing circuit, a main CPU, a key, an LED lamp array, a piezoelectric sensor, an operational amplifier and filter circuit, an audio processing module, Bluetooth, a battery and a battery management system.

The electrode 1, the electrode 2 and the ECG signal processing circuit jointly form an ECG module, and the ECG module is used for acquiring an electrocardiogram.

The bluetooth function is realized by means of a microcontroller, and the microcontroller transmits audio data and waveform data through a bluetooth protocol. The Bluetooth function includes that the bluetooth pairs and the bluetooth receives data, guarantees data real-time and accuracy, transmits waveform data and audio data to mobile terminal, like cell-phone APP, shows waveform data and audio data on mobile terminal to with waveform data and audio data upload to the high in the clouds.

The battery supplies power to the intelligent auscultation device.

The battery management system is wireless charging module internal system, and the battery management system is used for charging for intelligent auscultation device, replaces wired charging, controls the charge-discharge of battery, and the accurate surplus electric quantity that shows can guarantee that the auscultation device is sufficient all day to deal with daily medical treatment demand.

The main CPU is a Microcontroller (MCU) and completes the processing and control operation of signals through a Digital Signal Processing (DSP) library in the chip. The main CPU functions include: logic processing, audio DSP, peripheral operations, data encoding. The ECG signal processing process in the main CPU is as follows: the main CPU reads the ECG signal through the A/D module, converts the analog signal into a digital signal and sends the digital signal through Bluetooth.

The button and LED lamp array constitute mutual module, can select and carry out corresponding measurement function through the button, because intelligent auscultation device product is less, is not equipped with the touch-sensitive screen, carries out the status indication through LED lamp array. The LED lamp array comprises a first LED lamp group, a second LED lamp group, a third LED lamp group and a fourth LED lamp group. The LED lamp array provides indicative help, and the state indication of its effect for the product includes electric quantity indication, mode display, charge state indication.

The electrocardio function comprises a piezoelectric sensor, the piezoelectric sensor is used for collecting electrocardiosignals, and the collected electrocardiosignals can be collected and processed by the MCU after being processed by the operational amplifier and filter circuit and the audio processing module.

The patient is in the on-state through the switch button control intelligence auscultation device in the upper right corner of device, and the battery begins to supply power for intelligent auscultation device, and battery management system can real-time control display battery's electric quantity in service behavior in the use. The intelligent auscultation device adopts the lithium battery for power supply, can use wireless charging, and can place the wireless charger on to charge when not using. The remaining capacity can be accurately displayed by the battery management system. The ECG signal processing circuit amplifies and filters signals through detecting differential voltage signals of the electrode 1 and the electrode 2 during measurement operation, converts the signals into digital signals through an AD module of the main CPU, performs signal operation of the main CPU, namely signal denoising, ECG characteristic extraction and ECG signal contrast enhancement, and transmits processed waveforms to a mobile terminal, such as a mobile phone, in real time through Bluetooth.

The auscultation function is realized mainly by an audio interface, an audio chip, a main CPU, an LED lamp array, a key, an operational amplifier and filter circuit, a piezoelectric sensor, a battery and a battery management system.

The audio interface, the power amplifier circuit and the audio chip jointly form an audio processing module, and the audio processing module is used for controlling and outputting the collected heart sounds and lung sounds. For example, the collected heart sound signal is an analog signal, the analog signal is converted into a digital signal through an audio chip, the heart sound signal converted into the digital signal is sent to a main CPU, meanwhile, the analog signal received by the audio chip is amplified through a power amplifier circuit and is connected with an earphone through an audio interface, and the collected heart sound and lung sound are amplified and then transmitted to the earphone. The audio chip, namely an audio coding and decoding chip, namely a low-power consumption stereo audio codec, mainly realizes the control of audio output and heart sound processing, including heart sound mode switching and reading of heart sound digital signals. The main CPU is configured with a low-power consumption stereo audio codec through an IIC protocol to complete functions of heart sound signal acquisition, frequency division filtering, power amplification and the like, and simultaneously, digital signals of heart sounds can be read through the IIS protocol.

The audio signal processing process in the main CPU comprises the following steps: the main CPU writes an instruction into the low-power consumption stereo audio codec through the IIC, reads an audio digital signal sent by the low-power consumption stereo audio codec through the IIS interface, and sends the audio digital signal through Bluetooth.

The operational amplifier and filter circuit is a signal processing module and is used for collecting sound signals of a specific part and amplifying, filtering and denoising analog signals at the front end of a piezoelectric sensor, namely a sound cavity.

The patient is in the on-state through the switch button control intelligence auscultation device in the upper right corner of device, and the battery begins to supply power for the auscultation device, and battery management system can real-time control display battery's electric quantity in service behavior in the use. The intelligent auscultation device adopts the lithium battery for power supply, can use wireless charging, can place the wireless charger on with it when not using and charge, the accurate demonstration residual capacity of accessible battery management system. When the patient carries out measurement operation according to pilot lamp LED lamp battle array, the sound cavity of purpose-made structure gathers the sound of specific part, and the AD module through main CPU is changed into digital signal to with this digital signal through the filtering and denoise etc. and handle through audio chip and enlarge the back, transmit for the earphone through the audio interface, make the doctor can hear the sound more clear than traditional stethoscope sound, thereby supplementary doctor carries out medical diagnosis. The indicator light LED lamp array can indicate four modes of the auscultation device: 1) high frequency mode, which can measure heart diaphragm sounds; 2) a medium frequency mode, in which lung sounds can be measured; 3) low frequency mode, abdominal sounds can be measured; 4) full frequency mode, all sounds can be measured. The doctor can switch four kinds of modes through the button and listen sound, and the principle selects hardware audio decoding chip to carry out the switching of four kinds of modes for use, and the button is every time pressed the master control and is sent a string of instruction to decoding chip, accomplishes the switching of mode, promotes listening efficiency through mode switching.

When the intelligent auscultation device is used, a user controls the intelligent auscultation device to carry out measurement work through keys in an interactive module, sound of a specific part (specifically comprising a heart, a lung, a rib part and an abdomen and determined by a doctor) is collected through a special structure with high sound collection efficiency, small occupied space, low sensor cost and low mold cost, after signals collected by an electrocardio module are amplified and filtered by a signal processing module, the signals are collected into digital signals through an AD module of a main CPU, the digital signals are amplified, filtered, denoised and the like, and then transmitted to an earphone through an audio processing module, so that the doctor can hear the sound which is clearer than that of the traditional auscultation device, thereby assisting the doctor to carry out medical diagnosis, and meanwhile, the digital signals are converted into the digital signals through the AD module of the main CPU, and then, performing signal operation of a main CPU, specifically comprising smooth denoising, frequency division and signal enhancement, and transmitting the processed waveform to a mobile terminal, such as a mobile phone, in real time through Bluetooth. The intelligent auscultation device is powered by the lithium battery and is provided with the wireless charging module, and the intelligent auscultation device can be placed on the wireless charger to be charged when not in use.

The utility model discloses an auscultation device of intelligent acquisition, diagnosis can be applied to intelligent auscultation patient's heart sound and lung sound among the medical field to can gather ECG electrocardiosignal. The advantages are that:

1. the user can more clearly acquire heart sounds and lung sounds through the intelligent auscultation device.

2. The user can accomplish simple ECG electrocardio function through intelligent auscultation device.

3. Can accomplish the interconnection of intelligent auscultation device and cell-phone to through APP with the wave form signal transmission to the high in the clouds of heart sound and lung sound and ECG electrocardio, adopt current remote network medical system to carry out the analysis, obtain the diagnosis result, the diagnosis result is showing on APP.

4. Compared with the traditional stethoscope, the stethoscope improves the wearing comfort of doctors.

5. The whole structure is small and exquisite in design and convenient to carry about.

6. The wireless charging is along with filling and using, and the use is more convenient.

Compared with the prior stethoscope, the utility model discloses well intelligent auscultation device has following beneficial effect:

1) the function is richer, the functions of a stethoscope and a single-lead ECG are combined, and more diagnostic bases can be provided.

2) The audio interface is structurally provided, the monitoring earphone can be connected, the wearing comfort degree of a doctor is improved, and the monitoring quality and efficiency are improved.

3) Structurally, adopt the EVA bubble cotton, the rubber pad, the piezoceramics piece constitutes the sound cavity structure of auscultation device, compares the electret cooperation of current stethoscope and moulds plastics the structure in sound cavity, saves the cost, and the equipment of being convenient for improves radio reception efficiency.

4) The circuit divides the frequency of the collected audio signals, distinguishes different modes, can select different modes through the keys, thus finely monitoring the signals with specific frequency, isolating interference signals with other frequencies and improving the listening efficiency.

5) The product supplies power through the mode of wireless cooperation lithium cell that charges, for the wired mode of charging of current stethoscope, can make the stethoscope line more succinct, and continuous operation time is long, and it is more convenient to use.

6) Structurally, the single-lead ECG signal electrodes are distributed around the sound cavity, so that the ECG signal can be collected while the auscultation function is used, and the detection efficiency is improved.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. An intelligent auscultation device, characterized in that the device comprises: the device comprises a sound cavity, an earphone, an audio processing module, an electrocardio module, a microcontroller and a signal processing module; the sound cavity is connected with the signal processing module, the signal processing module is connected with the audio processing module, the electrocardio module is connected with the microcontroller, the microcontroller is respectively connected with the audio processing module and a remote network medical system, and the audio processing module is connected with the earphone;

2. The intelligent auscultation device of claim 1, wherein the sound cavity comprises EVA foam, a rubber pad and a piezoelectric ceramic sheet;

3. The intelligent auscultation device of claim 1, wherein the audio processing module specifically comprises an audio encoding and decoding chip, a power amplifier circuit and an audio interface;

4. The intelligent auscultation device of claim 1, wherein the electrocardio-module comprises 2 ECG signal electrodes and an ECG signal processing circuit;

5. The intelligent auscultation device of claim 1, wherein the device further comprises a mobile terminal;

6. The intelligent auscultation device of claim 1, wherein the signal processing module comprises an operational amplifier circuit and a filter circuit;

7. The intelligent auscultation device of claim 1, further comprising a mode switch button, a first LED light group, a second LED light group, a third LED light group, and a fourth LED light group;

8. The intelligent auscultation device of claim 7, wherein the device further comprises a battery module;

9. The intelligent auscultation device of claim 8, wherein the device further comprises a wireless charging module;

10. The intelligent auscultation device of claim 1, wherein the microcontroller is of type CY8C4248LQI-BL 573.