Multipurpose stethoscope

Abstract

The invention discloses a multipurpose stethoscope, and belongs to the technical field of stethoscopes. A multipurpose stethoscope comprises a cardiopulmonary auscultation unit, an ultrasonic data unit, an auscultation analysis unit and a display terminal. The problem that an existing stethoscope is single in function is solved, heart auscultation data and lung auscultation data of a patient are obtained and analyzed respectively, so that a heart auscultation result and a lung auscultation result are obtained, the conditions of the heart and the lungs of the patient are known, meanwhile, the heart auscultation data are displayed in a graphic mode, and the user experience is improved. Then, the ultrasonic data unit obtains and analyzes cardiac ultrasonic data of the patient by adopting a Doppler ultrasonic technology, so that the cardiac structure and the cardiac condition are known, the cardiac ultrasonic result of the patient is obtained, the skin temperature and the oxygen saturation of the patient can be detected during auscultation, and through the design, the stethoscope has multiple purposes and is convenient to use. And the practicability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of stethoscopes, in particular to a multi-purpose stethoscope. Background Art

[0002] A stethoscope is a medical instrument used to listen to the sounds in the body, such as the sound of the heart, breathing, and stomach. Using a stethoscope for auscultation is an important tool for medical staff to examine patients and diagnose diseases. The stethoscope is mainly composed of a sound pickup part (chest piece), a conductive part (hose), and a listening part (ear piece). During the use of the stethoscope, the sound pickup part (i.e., the pickup) needs to be close to the patient's body, generally close to the patient's skin, to obtain clear characteristic sounds; however, in many cases, due to physiological privacy reasons, especially for female patients, if medical staff directly stick the sound pickup part on the patient's skin, such as the abdomen, chest, etc., it will be very embarrassing; and if the patient sticks the sound pickup part on the skin by himself, it may cause improper placement, thereby affecting the sound pickup effect. However, the existing stethoscope has a relatively simple structure and a relatively simple function, which affects the scope of application of the stethoscope; therefore, it does not meet the existing needs. In this regard, we propose a multi-purpose stethoscope. Summary of the invention

[0003] The purpose of the present invention is to provide a multi-purpose stethoscope, which can obtain the patient's heart auscultation data and lung auscultation data through the stethoscope, and analyze the heart auscultation data and lung auscultation data respectively, so as to obtain the patient's heart auscultation results and lung auscultation results, thereby understanding the patient's heart and lung conditions. At the same time, the heart auscultation data is visualized and displayed in a graphical manner. By adopting Doppler ultrasound technology, the ultrasonic detection function of the stethoscope can be realized. Through the acquired heart ultrasound data, the heart structure and heart size can be understood, and then the contraction and relaxation functions of the atria and ventricles can be identified, as well as the pericardial effusion situation can be identified, and finally the patient's heart ultrasound results can be obtained. The patient's heart auscultation results and lung auscultation results, heart ultrasound results and visualized heart auscultation data are displayed on a display terminal, which is convenient for medical staff to intuitively understand the patient's auscultation situation, thereby solving the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a multi-purpose stethoscope, comprising: Cardiopulmonary auscultation unit for: Listening to the patient's heart sounds and lung sounds through a stethoscope to obtain the patient's heart auscultation data and lung auscultation data, and transmitting the obtained heart auscultation data and lung auscultation data to the auscultation analysis unit; Ultrasound data unit for: Use ultrasound technology to obtain the patient's cardiac ultrasound data, analyze the cardiac ultrasound data to understand the heart structure and size, and then identify the contraction and relaxation functions of the atria and ventricles, as well as the pericardial effusion, and finally obtain the patient's cardiac ultrasound results; Auscultation analysis unit for: Analyze the heart auscultation data to understand the patient's heart murmurs, and analyze the lung auscultation data to understand the pulmonary water status of the patient's lungs. Analyze the heart auscultation data and lung auscultation data separately to finally obtain the patient's heart auscultation results and lung auscultation results. At the same time, visualize the heart auscultation data and display it in a graphical manner. Display terminal for: The patient's heart auscultation results and lung auscultation results are displayed, as well as the heart ultrasound results. At the same time, the visualized heart auscultation data is displayed, wherein the display terminal and the auscultation analysis unit are connected by wireless communication.

[0005] Furthermore, the cardiopulmonary auscultation unit comprises: Heart and lung sound collection module, used for: A stethoscope is used to realize the auscultation function, collect the initial heart and lung sounds of the patient's body in real time, thereby obtaining the patient's heart auscultation data and lung auscultation data, and transmit the heart auscultation data and lung auscultation data to the data processing module; Data processing module for: The heart auscultation data and the lung auscultation data transmitted by the heart and lung sound collection module are received, and the collected heart auscultation data and the lung auscultation data are subjected to noise reduction processing, and the heart auscultation data and the lung auscultation data after the noise reduction processing are transmitted to the auscultation analysis unit.

[0006] Furthermore, the heart and lung sound collection module includes: A real-time acquisition module is used to acquire the initial heart and lung sounds of the patient's body auscultation part in real time, so as to obtain the patient's heart auscultation data and lung auscultation data; A signal amplitude extraction module, used to extract the heart auscultation data and the lung auscultation data, and obtain the current signal amplitudes of the heart auscultation data and the lung auscultation data; The initial gain coefficient acquisition module is used to acquire the initial gain coefficient according to the current signal amplitude of the cardiac auscultation data and the lung auscultation data and the target amplitude corresponding to the cardiac auscultation data and the lung auscultation data; wherein the initial gain coefficient is acquired by the following formula: Where G represents the initial gain coefficient; F m represents the target amplitude corresponding to the heart auscultation data and the lung auscultation data; F dIndicates the current signal amplitude of the heart auscultation data and the lung auscultation data; A gain coefficient adjustment parameter acquisition module is used to monitor the bandwidth value and electromagnetic interference signal of the data transmission between the current heart and lung sound acquisition module and the data processing module in real time, and obtain the gain coefficient adjustment parameter by using the bandwidth value and electromagnetic interference signal of the data transmission; The gain coefficient acquisition module is used to adjust the initial gain coefficient using the gain coefficient adjustment parameter to obtain the adjusted gain coefficient; wherein the adjusted gain coefficient is obtained by the following formula: Among them, G t represents the adjusted gain coefficient; G represents the initial gain coefficient; g represents the gain coefficient adjustment parameter; The amplitude adjustment and data transmission module is used to adjust the amplitude of the heart auscultation data and the lung auscultation data according to the adjusted gain coefficient, and transmit the heart auscultation data and the lung auscultation data after the amplitude adjustment to the data processing module.

[0007] Furthermore, the gain coefficient adjustment parameter acquisition module includes: A first data extraction module is used to extract a bandwidth value of data transmission between the current heart and lung sound acquisition module and the data processing module; A second data extraction module is used to extract the signal frequencies corresponding to the various radio interference signals in the process of data transmission between the current heart and lung sound acquisition module and the data processing module; A gain coefficient adjustment parameter acquisition module, used to obtain a gain coefficient adjustment parameter by using a bandwidth value of data transmission between the current heart and lung sound acquisition module and the data processing module in combination with the signal frequencies corresponding to multiple radio interference signals extracted during data transmission between the current heart and lung sound acquisition module and the data processing module; The gain coefficient adjustment parameter is obtained by the following formula: Wherein, g represents the gain coefficient adjustment parameter; m represents the number of unit times experienced by the data transmission between the heart and lung sound acquisition module and the data processing module, and the unit time is 1s; B represents the bandwidth value of the data transmission between the current heart and lung sound acquisition module and the data processing module; B i represents the bandwidth value corresponding to the i-th unit time in the historical data transmission process in addition to the bandwidth value of the current data transmission; n represents the number of types of radio interference signals; f i represents the frequency of the ith radio interference signal at the current data transmission moment; B e Indicates the rated bandwidth value of data transmission between the heart and lung sound acquisition module and the data processing module.

[0008] Furthermore, the cardiopulmonary auscultation unit further comprises: The temperature detection module includes a temperature sensor for: The function of detecting skin temperature with a stethoscope is realized. When auscultation is performed with a stethoscope, the temperature sensor contacts the patient's skin and the temperature of the skin is identified by the temperature sensor. Skin oxygen detection module, including blood oxygen sensor, is used for: The stethoscope is used to detect oxygen saturation. When auscultation is performed using a stethoscope, the temperature sensor contacts the patient's skin surface, and the blood oxygen sensor measures the oxygen partial pressure through the skin. The oxygen saturation in the arterial blood is estimated based on the measured oxygen partial pressure value.

[0009] Furthermore, the data processing module includes: Data denoising module for: The wavelet threshold method is used to perform multi-layer subdivision on the heart sound signals and lung sound signals in the heart auscultation data and the lung auscultation data, and threshold processing is applied to the coefficients of different layers. Finally, the signal is reconstructed to remove noise and retain useful signal components, thereby obtaining the denoised heart auscultation data and the lung auscultation data.

[0010] Furthermore, the auscultation analysis unit comprises: Heart sound analysis module for: According to the classification rules of heart murmurs, the heart auscultation data is analyzed, and the heart murmurs of the patients are classified through analysis, and then the heart condition of the patients is understood according to the classification results of the patients. Among them, the heart murmurs are classified into six levels, and the symptoms below level three are mild, and those above level three are related to the disease. Finally, the heart auscultation results of the patients are obtained; Heart sound visualization module for: Based on the cardiac auscultation results of the heart sound analysis module, the cardiac auscultation results are converted and processed, and then the converted cardiac auscultation data are displayed in a graphical manner using visual medical image software; Lung sound analysis module for: The lung auscultation data is analyzed to understand the patient's lung condition. By analyzing the patient's lung sounds, it is determined whether the patient has pulmonary edema and whether the lung water content has increased, and finally the patient's lung auscultation results are obtained.

[0011] Furthermore, the heart sound visualization module converts the cardiac auscultation results into a format suitable for visual display through conversion processing, the formats including DICOM and NIFTI medical image formats, and then uses visualization medical image software for visualization processing. The visualization medical image software uses the HiPlot visualization tool, and the visualization medical image software displays the cardiac auscultation results in the form of a waveform graph or a spectrum graph.

[0012] Furthermore, the lung sound analysis module analyzes the patient's lung sounds based on the lung auscultation data. Normal lung sounds are divided into tracheal sounds, bronchial sounds and alveolar sounds. If additional sounds are superimposed on normal respiratory sounds, abnormal respiratory sounds are formed. Abnormal respiratory sounds are divided into snoring sounds, wheezing sounds and moist rales. When moist rales appear in the patient's lung sounds, it is judged that the patient has water accumulation in the lungs. The heavier the moist rales, the higher the water content in the patient's lungs.

[0013] Furthermore, the ultrasound data unit specifically includes the following process: Adopt Doppler ultrasound technology to realize the ultrasonic detection function of the stethoscope; During auscultation, Doppler ultrasound technology is used to observe various structures of the heart, including the heart chambers, heart valves, and myocardium, in order to understand the structural condition of the patient's heart; By observing the various structures of the heart, cardiac ultrasound data is obtained, and the contraction and relaxation functions of the atria and ventricles are evaluated based on the cardiac ultrasound data, as well as the pericardial effusion condition is analyzed; Finally, the patient's cardiac ultrasound results were obtained.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention obtains the patient's heart auscultation data and lung auscultation data through the heart and lung auscultation unit, and then uses the auscultation analysis unit to analyze the heart auscultation data and the lung auscultation data respectively, thereby obtaining the heart auscultation results and the lung auscultation results, so as to understand the conditions of the patient's heart and lungs. At the same time, the heart auscultation data is displayed in a graphical manner. Then, the ultrasound data unit uses Doppler ultrasound technology to obtain and analyze the patient's heart ultrasound data, so as to understand the heart structure and heart condition, thereby obtaining the patient's heart ultrasound results. In addition, during auscultation, the patient's skin temperature and oxygen saturation can be detected. Through the above design, the stethoscope has multiple uses and improved practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the multi-purpose stethoscope of the present invention. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] In order to solve the technical problem that the existing stethoscope has a relatively simple structure, which leads to a relatively simple function of the stethoscope, thereby affecting the scope of application of the stethoscope and the low practicality, please refer to Figure 1 , this embodiment provides the following technical solutions: A multi-purpose stethoscope, comprising: Cardiopulmonary auscultation unit for: Listening to the patient's heart sounds and lung sounds through a stethoscope to obtain the patient's heart auscultation data and lung auscultation data, and transmitting the obtained heart auscultation data and lung auscultation data to the auscultation analysis unit; Ultrasound data unit for: Use ultrasound technology to obtain the patient's cardiac ultrasound data, analyze the cardiac ultrasound data to understand the heart structure and size, and then identify the contraction and relaxation functions of the atria and ventricles, as well as the pericardial effusion, and finally obtain the patient's cardiac ultrasound results; Auscultation analysis unit for: Analyze the heart auscultation data to understand the patient's heart murmurs, and analyze the lung auscultation data to understand the pulmonary water status of the patient's lungs. Analyze the heart auscultation data and lung auscultation data separately to finally obtain the patient's heart auscultation results and lung auscultation results. At the same time, visualize the heart auscultation data and display it in a graphical manner. Display terminal for: The patient's heart auscultation results and lung auscultation results are displayed, as well as the heart ultrasound results. At the same time, the visualized heart auscultation data is displayed. The display terminal and the auscultation analysis unit are connected by wireless communication, and the communication function between the display terminal and the auscultation analysis unit is realized through network wireless, so that the stethoscope can transmit data and analysis results to the display terminal for display.

[0018] The technical effect of the above content is: the stethoscope can obtain the patient's heart auscultation data and lung auscultation data through the cardiopulmonary auscultation unit, and then the heart auscultation data and lung auscultation data can be analyzed respectively through the auscultation analysis unit. After analysis, the patient's heart auscultation results and lung auscultation results can be obtained, and the conditions of the patient's heart and lungs can be understood according to the results. At the same time, the heart auscultation data is visualized and displayed in a graphical form. The graphics can more intuitively express the patient's heart condition. The ultrasound data unit uses ultrasound technology to obtain the patient's heart ultrasound data. Through the analysis of the heart ultrasound data, the heart structure and heart condition can be understood, so that the patient's heart ultrasound results can be obtained. Finally, the patient's heart auscultation results and lung auscultation results, heart ultrasound results and visualized heart auscultation data are displayed through the display terminal, so that medical staff can intuitively understand the patient's auscultation condition.

[0019] Cardiopulmonary auscultation unit, including: Heart and lung sound collection module, used for: A stethoscope is used to realize the auscultation function, collect the initial heart and lung sounds of the patient's body in real time, thereby obtaining the patient's heart auscultation data and lung auscultation data, and transmit the heart auscultation data and lung auscultation data to the data processing module; Data processing module for: The heart auscultation data and the lung auscultation data transmitted by the heart and lung sound collection module are received, and the collected heart auscultation data and the lung auscultation data are subjected to noise reduction processing, and the heart auscultation data and the lung auscultation data after the noise reduction processing are transmitted to the auscultation analysis unit.

[0020] Specifically, the heart and lung sound collection module includes: A real-time acquisition module is used to acquire the initial heart and lung sounds of the patient's body auscultation part in real time, so as to obtain the patient's heart auscultation data and lung auscultation data; A signal amplitude extraction module, used to extract the heart auscultation data and the lung auscultation data, and obtain the current signal amplitudes of the heart auscultation data and the lung auscultation data; The initial gain coefficient acquisition module is used to acquire the initial gain coefficient according to the current signal amplitude of the cardiac auscultation data and the lung auscultation data and the target amplitude corresponding to the cardiac auscultation data and the lung auscultation data; wherein the initial gain coefficient is acquired by the following formula: Where G represents the initial gain coefficient; F m represents the target amplitude corresponding to the heart auscultation data and the lung auscultation data; F d Indicates the current signal amplitude of the heart auscultation data and the lung auscultation data; A gain coefficient adjustment parameter acquisition module is used to monitor the bandwidth value and electromagnetic interference signal of the data transmission between the current heart and lung sound acquisition module and the data processing module in real time, and obtain the gain coefficient adjustment parameter by using the bandwidth value and electromagnetic interference signal of the data transmission; The gain coefficient acquisition module is used to adjust the initial gain coefficient using the gain coefficient adjustment parameter to obtain the adjusted gain coefficient; wherein the adjusted gain coefficient is obtained by the following formula: Among them, G t represents the adjusted gain coefficient; G represents the initial gain coefficient; g represents the gain coefficient adjustment parameter; The amplitude adjustment and data transmission module is used to adjust the amplitude of the heart auscultation data and the lung auscultation data according to the adjusted gain coefficient, and transmit the heart auscultation data and the lung auscultation data after the amplitude adjustment to the data processing module.

[0021] The technical effect of the above technical solution is: through the real-time acquisition module, the patient's heart auscultation data and lung auscultation data can be obtained instantly, which is particularly important for medical diagnosis, especially for emergency situations that require immediate feedback, such as cardiac arrest or acute respiratory distress. The signal amplitude extraction module can accurately extract the current signal amplitude of the heart and lung sound data, which provides an accurate basis for subsequent signal processing. The initial gain coefficient acquisition module dynamically calculates the initial gain coefficient based on the comparison between the current signal amplitude and the target amplitude, thereby automatically adjusting the signal strength so that the signal can maintain better quality during transmission and subsequent processing.

[0022] The gain coefficient adjustment parameter acquisition module monitors the bandwidth and electromagnetic interference signals of data transmission in real time. This function is essential to ensure stable data transmission in complex environments (such as the electromagnetic environment in hospitals). By dynamically adjusting the gain coefficient according to the real-time monitored environmental parameters, this technical solution can effectively resist external interference and improve the reliability and accuracy of data. The entire gain coefficient calculation and adjustment process is highly automated and intelligent, reducing the need for human intervention and improving the overall efficiency and stability of the system. The adjusted gain coefficient can more accurately adapt to the actual conditions of different patients and different working environments, ensuring the validity and availability of data. The amplitude adjustment and data transmission module adjusts the amplitude of the cardiopulmonary sound data according to the adjusted gain coefficient, which not only ensures the stability of the data during transmission, but also improves the efficiency of data transmission. By optimizing the quality of data transmission, data loss and errors during transmission can be reduced, ensuring that the data processing module can receive high-quality cardiopulmonary sound data.

[0023] In summary, this technical solution significantly improves the accuracy and reliability of cardiopulmonary sound collection through real-time collection, intelligent gain adjustment and environmental adaptability improvement, providing more solid data support for medical diagnosis.

[0024] Specifically, the gain coefficient adjustment parameter acquisition module includes: A first data extraction module is used to extract a bandwidth value of data transmission between the current heart and lung sound acquisition module and the data processing module; A second data extraction module is used to extract the signal frequencies corresponding to the various radio interference signals in the process of data transmission between the current heart and lung sound acquisition module and the data processing module; A gain coefficient adjustment parameter acquisition module, used to obtain a gain coefficient adjustment parameter by using a bandwidth value of data transmission between the current heart and lung sound acquisition module and the data processing module in combination with the signal frequencies corresponding to multiple radio interference signals extracted during data transmission between the current heart and lung sound acquisition module and the data processing module; The gain coefficient adjustment parameter is obtained by the following formula: Wherein, g represents the gain coefficient adjustment parameter; m represents the number of unit times experienced by the data transmission between the heart and lung sound acquisition module and the data processing module, and the unit time is 1s; B represents the bandwidth value of the data transmission between the current heart and lung sound acquisition module and the data processing module; B i represents the bandwidth value corresponding to the i-th unit time in the historical data transmission process in addition to the bandwidth value of the current data transmission; n represents the number of types of radio interference signals; f i represents the frequency of the ith radio interference signal at the current data transmission moment; B e Indicates the rated bandwidth value of data transmission between the heart and lung sound acquisition module and the data processing module.

[0025] The technical effect of the above technical solution is: through the first data extraction module and the second data extraction module, the bandwidth value of the current data transmission and the frequency of various radio interference signals are respectively obtained, which provides detailed environmental data for the subsequent calculation of the gain coefficient adjustment parameters. This enables the system to perceive and adapt to the current communication environment more accurately, thereby ensuring the stability and reliability of data transmission. The gain coefficient adjustment parameter acquisition module calculates the gain coefficient adjustment parameters using the current bandwidth value, the historical bandwidth value and the frequency of the radio interference signal. This calculation method takes into account the dynamic changes of data transmission, so that the system can adjust the gain coefficient in real time according to the actual environment to adapt to different communication conditions.

[0026] The formula combines the bandwidth change per unit time (represented by m, B and Bi) and the frequency of the radio interference signal (represented by n and fi), as well as the rated bandwidth value (Be), which together act on the calculation of the gain factor adjustment parameter. This comprehensive approach to consider multiple factors makes the adjustment of the gain factor more intelligent and precise, which helps to optimize the efficiency and quality of data transmission. By dynamically adjusting the gain factor, the system can more effectively utilize limited bandwidth resources and reduce data transmission problems caused by insufficient bandwidth or radio interference. This can not only increase the data transmission rate, but also reduce the error rate and packet loss rate during data transmission, thereby ensuring the integrity and accuracy of the data. Because the system can sense and adapt to changes in the communication environment in real time, it can better resist external interference and internal fluctuations, and improve the stability and reliability of the entire system. This is especially important for application scenarios that require high reliability and stability, such as medical diagnosis.

[0027] In summary, this technical solution significantly improves the system's adaptability to the communication environment and the efficiency and quality of data transmission by extracting and analyzing the bandwidth value of data transmission and the frequency of radio interference signals, and dynamically calculating and adjusting the gain coefficient adjustment parameters, thereby enhancing the stability and reliability of the system.

[0028] Cardiopulmonary auscultation unit, also includes: The temperature detection module includes a temperature sensor for: The function of detecting skin temperature with a stethoscope is realized. When auscultation is performed with a stethoscope, the temperature sensor contacts the patient's skin and the temperature of the skin is identified by the temperature sensor. Skin oxygen detection module, including blood oxygen sensor, is used for: The stethoscope is used to detect oxygen saturation. When auscultation is performed using a stethoscope, the temperature sensor contacts the patient's skin surface, and the blood oxygen sensor measures the oxygen partial pressure through the skin. The oxygen saturation in the arterial blood is estimated based on the measured oxygen partial pressure value.

[0029] The technical effect of the above content is: the stethoscope realizes the auscultation function through the heart and lung sound acquisition module. When the stethoscope is in contact with the patient's skin, the heart and lung sound acquisition module collects the initial heart and lung sounds of the patient's body auscultation part in real time, thereby obtaining the patient's heart auscultation data and lung auscultation data. The acquired heart auscultation data and lung auscultation data need to undergo noise reduction processing by the data processing module. The noise reduction processing can improve the quality of the heart auscultation data and lung auscultation data, thereby ensuring the accuracy of subsequent data analysis. At the same time, the stethoscope also realizes the function of detecting skin temperature through the temperature detection module. During auscultation, the stethoscope is in contact with the patient's skin. At this time, the temperature sensor can detect the patient's skin temperature in real time, thereby understanding the patient's skin temperature. In addition, the stethoscope also realizes the function of detecting oxygen saturation through the skin oxygen detection module. When auscultation is performed, the stethoscope is in contact with the patient's skin. At this time, the blood oxygen sensor measures the oxygen partial pressure through the skin, and estimates the oxygen saturation in the arterial blood based on the measured oxygen partial pressure value. The blood oxygen sensor is a non-invasive measurement method and can be used to evaluate the oxygen saturation in the human arterial blood. Through the above design, the two functions of skin temperature detection and oxygen saturation detection are added to the traditional cardiopulmonary auscultation of the stethoscope, thereby increasing the use function of the stethoscope and improving the practicality of the stethoscope.

[0030] Data processing module, including: Data denoising module for: The wavelet threshold method is used to perform multi-layer subdivision on the heart sound signals and lung sound signals in the heart auscultation data and the lung auscultation data, and threshold processing is applied to the coefficients of different layers. Finally, the signal is reconstructed to remove noise and retain useful signal components, thereby obtaining the denoised heart auscultation data and the lung auscultation data.

[0031] The technical effect of the above content is: before the heart auscultation data and the lung auscultation data are transmitted to the auscultation analysis unit, they need to undergo denoising processing by the data denoising module. The wavelet threshold method is used to subdivide the heart sound signal and the lung sound signal into multiple layers, and threshold processing is applied to the coefficients of different layers, which can effectively remove the noise in the signal, thereby improving the quality of the heart auscultation data and the lung auscultation data. Wavelet transform is a time-frequency analysis tool that can decompose the heart sound signal and the lung sound signal into sub-signals of different scales and frequencies, so as to better capture the characteristics of the heart sound signal and the lung sound signal. Threshold processing is to set a threshold for the wavelet coefficients. Coefficients less than this threshold are considered to be noise and are removed, while coefficients greater than this threshold are considered to be important parts of the signal and are retained. The wavelet threshold method can effectively remove noise while retaining important signal information, thereby improving the signal-to-noise ratio of the wavelet threshold method. The denoising processing of the heart auscultation data and the lung auscultation data by the data denoising module can improve the accuracy and efficiency of subsequent data analysis.

[0032] Auscultation analysis unit, including: Heart sound analysis module for: According to the classification rules of heart murmurs, the heart auscultation data is analyzed, and the heart murmurs of the patients are classified through analysis, and then the heart condition of the patients is understood according to the classification results of the patients. Among them, the heart murmurs are classified into six levels, and the symptoms below level three are mild, and those above level three are related to the disease. Finally, the heart auscultation results of the patients are obtained; Heart sound visualization module for: Based on the cardiac auscultation results of the heart sound analysis module, the cardiac auscultation results are converted and processed, and then the converted cardiac auscultation data are displayed in a graphical manner using visual medical image software; Lung sound analysis module for: The lung auscultation data is analyzed to understand the patient's lung condition. By analyzing the patient's lung sounds, it is determined whether the patient has pulmonary edema and whether the lung water content has increased, and finally the patient's lung auscultation results are obtained.

[0033] Among them, the heart sound visualization module converts the heart auscultation results into a format suitable for visual display through conversion processing, including DICOM and NIFTI medical image formats, and then uses the visualization medical image software for visualization processing. The visualization medical image software uses the HiPlot visualization tool. The visualization medical image software displays the heart auscultation results in the form of waveform graphs or spectrum graphs.

[0034] Among them, the lung sound analysis module analyzes the patient's lung sounds based on lung auscultation data. Normal lung sounds are divided into tracheal sounds, bronchial sounds and alveolar sounds. In normal respiratory sounds, if additional sounds are superimposed, abnormal respiratory sounds are formed. Abnormal respiratory sounds are divided into snoring sounds, wheezing sounds and moist rales. When moist rales appear in the patient's lung sounds, it is judged that the patient has water accumulation in the lungs. The heavier the moist rales, the higher the water content in the patient's lungs.

[0035] The technical effect of the above content is: the heart auscultation data and lung auscultation data after noise reduction are transmitted to the auscultation analysis unit, and the auscultation analysis unit will analyze the heart auscultation data and the lung auscultation data respectively. First, the heart sound analysis module will analyze the heart auscultation data according to the existing heart murmur grading rules. The patient's heart rhythm can be understood according to the heart auscultation data, so that the irregularity of the heart rhythm can be analyzed, and the patient's heart murmur can be graded through analysis, and then the patient's heart condition can be understood according to the patient's grading result, and finally the patient's heart auscultation result is obtained. If the patient is graded below level three, the symptoms are relatively mild. If the patient is graded above level three, it is related to the disease and requires in-depth examination. Then, the lung sound analysis module can analyze the patient's lung sounds based on the lung auscultation data to determine whether the patient is Whether there is pulmonary edema and whether the pulmonary water content has increased. Moist rales are a manifestation of pulmonary edema in the patient. When moist rales appear in the patient's lung sounds, it indicates that the patient has pulmonary edema, and the heavier the moist rales, the more pulmonary water content in the patient's lungs is increasing. By analyzing the patient's lung sounds, we can understand the patient's lung condition and obtain the patient's lung auscultation results. Finally, the heart sound visualization module can visualize the heart auscultation results. The heart sound visualization module first converts the heart auscultation results into DICOM or NIFTI medical image formats suitable for visual display, and then uses the HiPlot visualization tool for visualization, and displays the heart auscultation results in the form of waveforms or spectrum diagrams. By displaying the heart auscultation data in a graphical way, the patient's heart condition can be more intuitively expressed.

[0036] It should be noted that the grading standard for heart murmurs is divided into six levels according to the murmur volume and duration during auscultation, as follows: Level 1 murmur: It is an extremely mild murmur, the loudness of the murmur is relatively light and the duration is relatively short; Secondary murmur: It is a relatively mild murmur that can be heard during auscultation; Level 3 murmur: The murmur is relatively loud and strong, belonging to the medium murmur; Level 4 murmur: It is relatively loud, of high intensity, and lasts for a long time; Level 5 murmur: The murmur is very loud and lasts for a long time; Level 6 noise: It is an extremely loud noise.

[0037] Ultrasound data unit, specifically including the following processes: When using a stethoscope for auscultation, noise can also be heard after the stethoscope leaves the chest wall. Further, the ultrasound data unit specifically includes the following process: Adopt Doppler ultrasound technology to realize the ultrasonic detection function of the stethoscope; During auscultation, Doppler ultrasound technology is used to observe various structures of the heart, including the heart chambers, heart valves, and myocardium, in order to understand the structural condition of the patient's heart; By observing the various structures of the heart, cardiac ultrasound data is obtained, and the contraction and relaxation functions of the atria and ventricles are evaluated based on the cardiac ultrasound data, as well as the pericardial effusion condition is analyzed; Finally, the patient's cardiac ultrasound results were obtained.

[0038] The technical effect of the above content is: by using Doppler ultrasound technology to obtain an ultrasonic image of the patient's heart area, the various structures of the heart can be observed, including the heart chambers, heart valves, and myocardium, so as to understand the structural condition of the patient's heart, thereby obtaining the patient's heart ultrasound data. The heart ultrasound data obtained based on the Doppler ultrasound technology can identify the contraction and relaxation functions of the atria and ventricles, and the size of the heart can be identified. By adopting Doppler ultrasound technology, the ultrasonic data unit can realize the ultrasonic detection function when auscultating with a stethoscope, further increasing the use function of the stethoscope and improving the practicality of the stethoscope.

[0039] Working principle: The heart auscultation data and lung auscultation data of the patient are obtained through the cardiopulmonary auscultation unit, and then the heart auscultation data and lung auscultation data are analyzed by the auscultation analysis unit respectively, so as to obtain the heart auscultation results and lung auscultation results, so as to understand the conditions of the patient's heart and lungs. At the same time, the heart auscultation data is displayed in a graphical manner. Then, the ultrasound data unit uses Doppler ultrasound technology to obtain and analyze the patient's heart ultrasound data, so as to understand the heart structure and heart condition, so as to obtain the patient's heart ultrasound results. In addition, during auscultation, the patient's skin temperature and oxygen saturation can be detected. Through the above design, the stethoscope has multiple uses and improves its practicality. The ultrasound data unit uses Doppler ultrasound technology to realize the ultrasound detection function during auscultation with the stethoscope, further increasing the use function of the stethoscope and improving the practicality of the stethoscope. In addition, the display terminal can display the patient's heart auscultation results and lung auscultation results, heart ultrasound results and visualized heart auscultation data, so that medical staff can intuitively understand the patient's auscultation condition.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A multi-purpose stethoscope, characterized in that: include: Cardiopulmonary auscultation unit for: Listening to the patient's heart sounds and lung sounds through a stethoscope to obtain the patient's heart auscultation data and lung auscultation data, and transmitting the obtained heart auscultation data and lung auscultation data to the auscultation analysis unit; Ultrasound data unit for: Use ultrasound technology to obtain the patient's cardiac ultrasound data, analyze the cardiac ultrasound data to understand the heart structure and size, identify the contraction and relaxation functions of the atria and ventricles, and identify the pericardial effusion, and obtain the patient's cardiac ultrasound results; Auscultation analysis unit for: Analyze the heart auscultation data to understand the patient's heart murmurs, and analyze the lung auscultation data to understand the pulmonary water status of the patient's lungs. Analyze the heart auscultation data and lung auscultation data separately to finally obtain the patient's heart auscultation results and lung auscultation results. At the same time, visualize the heart auscultation data and display it in a graphical manner. Display terminal for: The patient's heart auscultation results and lung auscultation results are displayed, as well as the heart ultrasound results. At the same time, the visualized heart auscultation data is displayed, wherein the display terminal and the auscultation analysis unit are connected by wireless communication.

2. A multi-purpose stethoscope according to claim 1, characterized in that: The cardiopulmonary auscultation unit comprises: Heart and lung sound collection module, used for: A stethoscope is used to realize the auscultation function, collect the initial heart and lung sounds of the patient's body in real time, thereby obtaining the patient's heart auscultation data and lung auscultation data, and transmit the heart auscultation data and lung auscultation data to the data processing module; Data processing module for: The heart auscultation data and the lung auscultation data transmitted by the heart and lung sound collection module are received, and the collected heart auscultation data and the lung auscultation data are subjected to noise reduction processing, and the heart auscultation data and the lung auscultation data after the noise reduction processing are transmitted to the auscultation analysis unit.

3. A multi-purpose stethoscope according to claim 2, characterized in that: The heart and lung sound collection module comprises: A real-time acquisition module is used to acquire the initial heart and lung sounds of the patient's body auscultation part in real time, so as to obtain the patient's heart auscultation data and lung auscultation data; A signal amplitude extraction module, used to extract the heart auscultation data and the lung auscultation data, and obtain the current signal amplitudes of the heart auscultation data and the lung auscultation data; The initial gain coefficient acquisition module is used to acquire the initial gain coefficient according to the current signal amplitude of the heart auscultation data and the lung auscultation data and the target amplitude corresponding to the heart auscultation data and the lung auscultation data; wherein the initial gain coefficient is acquired by the following formula: Where G represents the initial gain coefficient; F m represents the target amplitude corresponding to the heart auscultation data and the lung auscultation data; F d Indicates the current signal amplitude of the heart auscultation data and the lung auscultation data; A gain coefficient adjustment parameter acquisition module is used to monitor the bandwidth value and electromagnetic interference signal of the data transmission between the current heart and lung sound acquisition module and the data processing module in real time, and obtain the gain coefficient adjustment parameter by using the bandwidth value and electromagnetic interference signal of the data transmission; The gain coefficient acquisition module is used to adjust the initial gain coefficient using the gain coefficient adjustment parameter to obtain the adjusted gain coefficient; wherein the adjusted gain coefficient is obtained by the following formula: Among them, G t represents the adjusted gain coefficient; G represents the initial gain coefficient; g represents the gain coefficient adjustment parameter; The amplitude adjustment and data transmission module is used to adjust the amplitude of the heart auscultation data and the lung auscultation data according to the adjusted gain coefficient, and transmit the heart auscultation data and the lung auscultation data after the amplitude adjustment to the data processing module.

4. A multi-purpose stethoscope according to claim 3, characterized in that: The gain coefficient adjustment parameter acquisition module includes: A first data extraction module is used to extract a bandwidth value of data transmission between the current heart and lung sound acquisition module and the data processing module; A second data extraction module is used to extract the signal frequencies corresponding to the various radio interference signals in the process of data transmission between the current heart and lung sound acquisition module and the data processing module; A gain coefficient adjustment parameter acquisition module, used to obtain a gain coefficient adjustment parameter by using a bandwidth value of data transmission between the current heart and lung sound acquisition module and the data processing module in combination with the signal frequencies corresponding to multiple radio interference signals extracted during data transmission between the current heart and lung sound acquisition module and the data processing module; The gain coefficient adjustment parameter is obtained by the following formula: Wherein, g represents the gain coefficient adjustment parameter; m represents the number of unit times experienced by the data transmission between the heart and lung sound acquisition module and the data processing module, and the unit time is 1s; B represents the bandwidth value of the data transmission between the current heart and lung sound acquisition module and the data processing module; B i represents the bandwidth value corresponding to the i-th unit time in the historical data transmission process in addition to the bandwidth value of the current data transmission; n represents the number of types of radio interference signals; f i represents the frequency of the ith radio interference signal at the current data transmission moment; B e Indicates the rated bandwidth value of data transmission between the heart and lung sound acquisition module and the data processing module.

5. A multi-purpose stethoscope according to claim 1, characterized in that: The cardiopulmonary auscultation unit further comprises: The temperature detection module includes a temperature sensor for: The function of detecting skin temperature with a stethoscope is realized. When auscultation is performed with a stethoscope, the temperature sensor contacts the patient's skin and the temperature of the skin is identified by the temperature sensor. Skin oxygen detection module, including blood oxygen sensor, is used for: The stethoscope is used to detect oxygen saturation. When auscultation is performed using a stethoscope, the temperature sensor contacts the patient's skin surface, and the blood oxygen sensor measures the oxygen partial pressure through the skin. The oxygen saturation in the arterial blood is estimated based on the measured oxygen partial pressure value.

6. A multi-purpose stethoscope according to claim 2, characterized in that: The data processing module comprises: Data denoising module for: The wavelet threshold method is used to perform multi-layer subdivision on the heart sound signals and lung sound signals in the heart auscultation data and the lung auscultation data, and threshold processing is applied to the coefficients of different layers. Finally, the signal is reconstructed to remove noise and retain useful signal components, thereby obtaining the denoised heart auscultation data and the lung auscultation data.

7. A multi-purpose stethoscope according to claim 1, characterized in that: The auscultation analysis unit comprises: Heart sound analysis module for: According to the classification rules of heart murmurs, the heart auscultation data is analyzed, and the heart murmurs of the patients are classified through analysis, and then the heart condition of the patients is understood according to the classification results of the patients. Among them, the heart murmurs are classified into six levels, and the symptoms below level three are mild, and those above level three are related to the disease. Finally, the heart auscultation results of the patients are obtained; Heart sound visualization module for: Based on the cardiac auscultation results of the heart sound analysis module, the cardiac auscultation results are converted and processed, and then the converted cardiac auscultation data are displayed in a graphical manner using visual medical image software; Lung sound analysis module for: The lung auscultation data is analyzed to understand the patient's lung condition. By analyzing the patient's lung sounds, it is determined whether the patient has pulmonary edema and whether the lung water content has increased, and finally the patient's lung auscultation results are obtained.

8. A multi-purpose stethoscope according to claim 7, characterized in that: The heart sound visualization module converts the heart auscultation results into a format suitable for visual display through conversion processing, including DICOM and NIFTI medical image formats, and then uses visualization medical image software for visualization processing. The visualization medical image software uses the HiPlot visualization tool. The visualization medical image software displays the heart auscultation results in the form of a waveform graph or a spectrum graph.

9. A multi-purpose stethoscope according to claim 7, characterized in that: The lung sound analysis module analyzes the patient's lung sounds based on the lung auscultation data. Normal lung sounds are divided into tracheal sounds, bronchial sounds and alveolar sounds. If additional sounds are superimposed on normal respiratory sounds, abnormal respiratory sounds are formed. Abnormal respiratory sounds are divided into snoring sounds, wheezing sounds and moist rales. When moist rales appear in the patient's lung sounds, it is judged that the patient's lungs have water accumulation. The heavier the moist rales, the higher the water content in the patient's lungs.

10. A multi-purpose stethoscope according to claim 1, characterized in that: The ultrasound data unit specifically includes the following process: Adopt Doppler ultrasound technology to realize the ultrasonic detection function of the stethoscope; During auscultation, Doppler ultrasound technology is used to observe various structures of the heart, including the heart chambers, heart valves, and myocardium, in order to understand the structural condition of the patient's heart; By observing the various structures of the heart, cardiac ultrasound data is obtained, and the contraction and relaxation functions of the atria and ventricles are evaluated based on the cardiac ultrasound data, as well as the pericardial effusion condition is analyzed; Finally, the patient's cardiac ultrasound results were obtained.

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