A heart failure monitoring system

Abstract

The present invention discloses a heart failure monitoring system. The signal acquisition module in the heart failure monitoring system acquires at least one heart failure physiological signal of a target user. The processor in the heart failure monitoring system calculates the heart failure index of the target user according to at least one heart failure physiological signal and the preset index calculation rules corresponding to each heart failure physiological signal, realizing the monitoring of the heart failure state of the user, being able to detect the heart failure degree of the user in real time, solving the technical problem that the deterioration of the heart failure condition of the patient cannot be detected in time. Moreover, the heart failure index can also be used as auxiliary information for doctors to judge the condition, such as deciding whether to adjust the medication or go to the hospital for treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a heart failure monitoring system. Background Art

[0002] Heart failure, a degenerative chronic disease, cannot be completely cured. Even after treatment, heart failure patients often experience repeated worsening of their condition. In the early stages of an acute exacerbation of heart failure, because the heart lacks a nervous system to detect the deterioration, the condition is not discovered until the patient develops severe symptoms, such as difficulty breathing, by which time the myocardium has already been severely damaged.

[0003] Therefore, early detection of signs of acute worsening of the condition and timely adjustment of treatment plans and medications are important methods for prolonging a patient's lifespan. However, during the implementation of the present invention, it was discovered that the prior art suffers from at least the following technical problems: The prior art fails to detect worsening of a patient's heart failure early enough, making it difficult to provide early warning of the patient's condition and adjust treatment to prevent worsening of heart failure. Summary of the Invention

[0004] The present invention provides a heart failure monitoring system to monitor the heart failure status of a user and solve the technical problem of not being able to timely detect the worsening of the patient's heart failure condition.

[0005] According to one aspect of the present invention, a heart failure monitoring system is provided, characterized in that the heart failure monitoring system includes a heart monitor, and the heart monitor includes a signal acquisition module and a processor; wherein,

[0006] The signal acquisition module is connected to the processor and is used to acquire at least one heart failure physiological signal of the target user and send the at least one heart failure physiological signal to the processor;

[0007] The processor is configured to determine the heart failure index of the target user based on at least one received heart failure physiological signal and a preset index calculation rule corresponding to the heart failure physiological signal.

[0008] Optionally, the signal acquisition module includes at least one of a heart sound monitoring unit, an electrocardiogram monitoring unit, a lung sound monitoring unit, a blood oxygen monitoring unit, a respiratory monitoring unit, an impedance monitoring unit, and a sleep inclination monitoring unit, wherein:

[0009] The heart sound monitoring unit is used to obtain the heart sound signal of the target user;

[0010] The electrocardiogram monitoring unit is used to obtain the electrocardiogram signal of the target user;

[0011] The lung sound monitoring unit is used to obtain lung sound signals of the target user;

[0012] The blood oxygen monitoring unit is used to acquire the blood oxygen signal of the target user;

[0013] The respiration monitoring unit is used to acquire the respiration signal of the target user;

[0014] The impedance monitoring unit is used to acquire the impedance signal of the target user;

[0015] The sleep inclination monitoring unit is used to acquire the sleep inclination signal of the target user.

[0016] Optionally, the processor is specifically configured to determine the signal reference index corresponding to the heart failure physiological signal according to at least one received heart failure physiological signal and the preset index calculation rule corresponding to the heart failure physiological signal, and determine the heart failure index of the target user based on the signal reference index corresponding to at least one heart failure physiological signal and the preset weight corresponding to the heart failure physiological signal.

[0017] Optionally, the processor is further configured to perform at least one of the following operations:

[0018] If the heart sound signal is received and a third heart sound is detected in the heart sound signal, determine the signal reference index corresponding to the heart sound signal based on the intensity of the third heart sound;

[0019] If the electrocardiogram signal is received, determine the actual heart rate corresponding to the target user based on the electrocardiogram signal, and determine the signal reference index corresponding to the electrocardiogram signal based on the actual heart rate and the preset stable heart rate;

[0020] If the lung sound signal is received and a rale signal is detected in the lung sound signal, determine the signal reference index corresponding to the lung sound signal based on the intensity of the rale signal;

[0021] If the blood oxygen signal is received, determine the signal reference index corresponding to the blood oxygen signal based on the actual blood oxygen saturation in the blood oxygen signal and the preset reference saturation;

[0022] If the respiration signal is received, determine the signal reference index corresponding to the respiration signal based on the current respiration frequency and the historical respiration frequency corresponding to the respiration signal;

[0023] If the bio-impedance signal is received, determine the signal reference index corresponding to the bio-impedance signal based on the current bio-impedance in the bio-impedance signal and the preset stable impedance;

[0024] If the sleep inclination signal is received, determine the average sleep inclination of the target user within the current preset time period based on the sleep inclination signal, and determine the signal reference index corresponding to the sleep inclination signal based on the average sleep inclination within the current preset time period and the average sleep inclination within the previous preset time period.

[0025] Optionally, the system further includes a wearable cardiac defibrillator, the cardiac monitor further includes a first communication module, and the signal acquisition module at least includes the electrocardiogram monitoring unit;

[0026] The processor is further configured to detect whether a cardiac event occurs to the target user according to the electrocardiogram signal, and if so, send a defibrillation instruction to the wearable cardiac defibrillator through the first communication module;

[0027] The wearable cardiac defibrillator is configured to perform a defibrillation operation on the target user according to the defibrillation instruction, and feed back a defibrillation completion signal to the processor after the defibrillation operation is completed.

[0028] Optionally, the signal acquisition module further includes an accelerometer;

[0029] The accelerometer is configured to collect the acceleration signal of the target user and send the acceleration signal to the processor;

[0030] The processor is further configured to detect whether a cardiac event occurs to the target user based on the acceleration signal and the electrocardiogram signal.

[0031] Optionally, the signal acquisition module further includes the heart sound monitoring unit;

[0032] The processor is further configured to calculate a first heart rate according to the electrocardiogram signal, calculate a second heart rate according to the heart sound signal, and determine whether a cardiac event occurs to the target user based on the first heart rate and the second heart rate.

[0033] Optionally, the wearable cardiac defibrillator includes an electrocardiogram module and sensing electrodes; wherein,

[0034] The electrocardiogram module is configured to calculate a third heart rate of the target user according to the electrocardiogram signal collected by the sensing electrodes, and determine whether a cardiac event occurs to the target user based on the third heart rate;

[0035] The wearable cardiac defibrillator is further configured to perform a defibrillation operation on the target user if it receives the defibrillation instruction sent by the processor and the electrocardiogram module determines that a cardiac event occurs to the target user.

[0036] Optionally, the wearable cardiac defibrillator is further configured to, when receiving a defibrillation instruction including the event degree corresponding to the cardiac event, determine the defibrillation energy corresponding to the target user according to the event degree, and perform a defibrillation operation on the target user based on the defibrillation energy.

[0037] Optionally, the system further includes an external cardiac defibrillator, which includes a second communication module and an indicator; wherein,

[0038] The processor is further configured to, when detecting that a cardiac event occurs to the target user, send an event processing signal to the second communication module of the external cardiac defibrillator through the first communication module;

[0039] The external cardiac defibrillator is configured to, when receiving the event processing signal, control the indicator to play or display an alarm signal.

[0040] Optionally, the processor is further configured to, when detecting that a cardiac event occurs to the target user, send an event prompt signal to the terminal device of an associated user associated with the target user through the first communication module; or,

[0041] The external cardiac defibrillator is further configured to, when receiving the event processing signal, send an event prompt signal to the terminal device of the associated user through the second communication module.

[0042] Optionally, the external cardiac defibrillator further includes a microphone and a speaker; wherein,

[0043] The second communication module is further configured to receive a voice signal sent by the terminal device of the associated user, and send a voice signal to the terminal device of the associated user;

[0044] The external cardiac defibrillator is further configured to control the speaker to play the voice signal received through the second communication module, and control the microphone to collect a voice signal, and send the voice signal to the terminal device of the associated user through the second communication module. [[ID=2�]]

[0045] Optionally, the second communication module includes a Bluetooth communication unit and a network communication unit; wherein,

[0046] The second communication module is further configured to obtain the current position of the associated user. If the distance between the current position and the position of the external cardiac defibrillator does not exceed a preset distance threshold, an event prompt signal is sent to the terminal device of the associated user through the Bluetooth communication unit. If the distance exceeds the preset distance threshold, an event prompt signal is sent to the terminal device through the network communication unit.

[0047] Optionally, the external defibrillator further includes an electrocardiogram module. The external defibrillator is further configured to, when receiving the event processing signal, perform a defibrillation operation on the target user if it is determined according to the electrocardiogram module that the target user has a cardiac event.

[0048] Optionally, the external defibrillator is further configured to, when detecting that the user education mode is activated, display or play the basic information of the external defibrillator, or send the basic information to the terminal device of the target user or the terminal device of the associated user associated with the target user through the second communication module. The basic information includes the current device status, electrode pad replacement cycle, battery status, fault handling information, and contact information.

[0049] Optionally, the external defibrillator further includes a defibrillation interaction learning module, a microphone, and a display interface, where

[0050] The defibrillation interaction learning module is configured to display interactive learning resources on the display interface, obtain the simulated operations performed by the learning user on the display interface in response to the interactive learning resources and the simulated operations recorded by the learning user on the microphone, and determine the interactive learning effect corresponding to the learning user based on the simulated operations.

[0051] Optionally, the external defibrillator further includes an activation module, where

[0052] The activation module is configured to determine the resource content of the interactive learning resources displayed by the defibrillation interaction learning module and / or the time for displaying the interactive learning resources according to the interactive learning effect.

[0053] Optionally, the processor is further configured to send the heart failure index to the activation module;

[0054] The activation module is further configured to determine the resource content and / or the time for displaying the interactive learning resources according to the interactive learning effect and the heart failure index.

[0055] Optionally, the defibrillation interaction learning module is further configured to obtain the treatment pretreatment simulation operations, treatment simulation operations, and first aid simulation operations performed by the learning user on the display interface in response to the interactive learning resources, and obtain the artificial respiration simulation operations recorded by the learning user on the microphone in response to the interactive learning resources, and determine the interactive learning effect corresponding to the learning user based on the treatment pretreatment simulation operations, the treatment simulation operations, the first aid simulation operations, and the artificial respiration simulation operations.

[0056] The heart failure monitoring system provided by the embodiments of the present invention collects at least one heart failure physiological signal of a target user according to a signal acquisition module, and calculates a heart failure index of the target user according to the at least one heart failure physiological signal and a preset index calculation rule corresponding to each heart failure physiological signal through a processor, realizing the monitoring of the heart failure state of the user, being able to detect the degree of heart failure of the user in real time, solving the technical problem that the deterioration of the heart failure condition of the patient cannot be discovered in time, and moreover, the heart failure index can also be used as auxiliary information for a doctor to judge the condition, such as deciding whether to adjust the medication or go to the hospital for treatment.

[0057] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0059] Figure 1A is a schematic structural diagram of a heart failure monitoring system provided by Embodiment 1 of the present invention;

[0060] Figure 1B is a schematic diagram of an electrocardiogram monitoring unit provided by Embodiment 1 of the present invention;

[0061] Figure 1C is a schematic structural diagram of a heart monitor provided by Embodiment 1 of the present invention;

[0062] Figure 2A is a schematic structural diagram of a heart failure monitoring system provided by Embodiment 2 of the present invention;

[0063] Figure 2B is a schematic diagram of a wearable cardioverter defibrillator provided by Embodiment 2 of the present invention;

[0064] Figure 2C is a schematic diagram of a determination process of a heart event based on heart sound signals and electrocardiogram signals provided by Embodiment 2 of the present invention;

[0065] Figure 2D is a schematic diagram of a determination process of a heart event based on a wearable cardioverter defibrillator and a heart monitor provided by Embodiment 2 of the present invention;

[0066] Figure 3A is a schematic structural diagram of a heart failure monitoring system provided by Embodiment 3 of the present invention;

[0067] Figure 3B It is a schematic diagram of the transmission process of an event processing signal provided in the third embodiment of the present invention;

[0068] Figure 4A It is a schematic diagram of the structure of a heart failure monitoring system provided in the fourth embodiment of the present invention;

[0069] Figure 4B It is a schematic diagram of the determination process of an interactive learning effect provided in the fourth embodiment of the present invention;

[0070] Figure 4C It is a schematic diagram of the process for an external cardiac defibrillator to start the user education mode provided in the fourth embodiment of the present invention;

[0071] Figure 4D It is a placement schematic diagram of an external cardiac defibrillator provided in the fourth embodiment of the present invention;

[0072] Figure 4E It is a schematic diagram of an external cardiac defibrillator and a base provided in the fourth embodiment of the present invention;

[0073] Figure 4F It is a schematic diagram of an interactive learning module provided in the fourth embodiment of the present invention. Detailed implementation manners

[0074] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0075] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those clearly listed steps or units, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0076] Embodiment 1

[0077] Figure 1A It is a schematic structural diagram of a heart failure monitoring system provided by Embodiment 1 of the present invention. The heart failure monitoring system includes a heart monitor 10, and the heart monitor 10 includes a signal acquisition module 101 and a processor 102. Among them, the signal acquisition module 101 is connected to the processor 102 and is used to acquire at least one heart failure physiological signal of the target user and send the at least one heart failure physiological signal to the processor 102. The processor 102 is used to determine the heart failure index of the target user according to the received at least one heart failure physiological signal and the preset index calculation rule corresponding to the heart failure physiological signal.

[0078] Among them, the heart failure physiological signal can be a physiological signal reflecting the heart failure condition. Specifically, in the initial stage of the deterioration of the heart failure state, the heart and the human body will release various signals, such as changes in heart sounds, increased resting heart rate, pulmonary rales, decreased blood oxygen, shortness of breath, edema, and changes in the sleep inclination angle. Therefore, heart failure physiological signals such as the user's heart sound signal, electrocardiogram signal, lung sound signal, blood oxygen signal, or respiratory signal can be monitored.

[0079] Exemplarily, the signal acquisition module 101 includes at least one of a heart sound monitoring unit, an electrocardiogram monitoring unit, a lung sound monitoring unit, a blood oxygen monitoring unit, a respiratory monitoring unit, an impedance monitoring unit, and a sleep inclination monitoring unit. Among them, the heart sound monitoring unit is used to acquire the heart sound signal of the target user; the electrocardiogram monitoring unit is used to acquire the electrocardiogram signal of the target user; the lung sound monitoring unit is used to acquire the lung sound signal of the target user; the blood oxygen monitoring unit is used to acquire the blood oxygen signal of the target user; the respiratory monitoring unit is used to acquire the respiratory signal of the target user; the impedance monitoring unit is used to acquire the impedance signal of the target user; the sleep inclination monitoring unit is used to acquire the sleep inclination signal of the target user.

[0080] Among them, the heart sound monitoring unit can be a heart sound sensor. The electrocardiogram monitoring unit can be an optical heart rate sensor or an electrode patch sensor. The lung sound monitoring unit can be a lung sound sensor. The blood oxygen monitoring unit can be a blood oxygen sensor. For example, an optical sensor can be used to determine the oxygenation degree of hemoglobin according to the difference in the absorption amounts of different wavelengths of light by oxyhemoglobin and hemoglobin, and obtain the blood oxygen signal. The respiratory monitoring unit can be a respiratory sensor. The impedance monitoring unit can be a bioimpedance sensor. The sleep inclination monitoring unit can be a sleep inclination sensor. The above-mentioned monitoring units can be implemented in ways such as dedicated hardware modules, general hardware modules, or software modules.

[0081] Specifically, the signal acquisition module 101 can be a patch-type acquisition device, that is, it collects the corresponding heart failure physiological signals by being placed on the body surface of the target user. Exemplarily, if the signal acquisition module includes an electrocardiogram monitoring unit, the electrocardiogram monitoring unit can be a patch-type device, such as Figure 1BAs shown, a schematic diagram of an electrocardiogram monitoring unit is presented. The electrocardiogram monitoring unit can be arranged on the chest skin surface of a user. The electrocardiogram monitoring unit may include a first electrode and a second electrode, which are connected to a processor 102 and send the monitored electrocardiogram signals to the processor 102.

[0082] The signal acquisition module 101 can also be a wearable acquisition device, such as a ring, a bracelet, an armband, a headband, or a chest and abdomen band, etc., which can be worn by the user. Of course, the signal acquisition module 101 can also be a signal acquisition device that combines a patch type and a wearable type, that is, it includes both a body surface patch and a wearable device. The various monitoring units included in the signal acquisition module 101 can be increased or decreased according to the types of heart failure physiological signals to be acquired, or, the various monitoring units included in the signal acquisition module 101 can also be increased or decreased according to the wearing method.

[0083] For example, for wearable signal acquisition modules 101 such as rings and bracelets, only an electrocardiogram monitoring unit and a blood oxygen monitoring unit need to be designed in the signal acquisition module 101; for wearable signal acquisition modules 101 such as headbands or chest and abdomen bands, only a heart sound monitoring unit or an electrocardiogram monitoring unit needs to be designed in the signal acquisition module 101. The patch type or wearable signal acquisition module 101 can achieve long-term continuous monitoring of the target user. The use of multiple sensors can provide more comprehensive clinical data, thereby facilitating a comprehensive evaluation of the heart failure state of the target user.

[0084] Optionally, if the signal acquisition module 101 is a patch type acquisition device, the signal acquisition module 101 can simultaneously include a heart sound monitoring unit, an electrocardiogram monitoring unit, a lung sound monitoring unit, a blood oxygen monitoring unit, a respiration monitoring unit, an impedance monitoring unit, and a sleep inclination monitoring unit.

[0085] Exemplarily, as Figure 1C shown, a schematic diagram of the structure of a heart monitor is presented. The heart monitor includes a processor 110, a heart sound monitoring unit 111, an electrocardiogram monitoring unit 112, a lung sound monitoring unit 113, a blood oxygen monitoring unit 114, a respiration monitoring unit 115, an impedance monitoring unit 116, and a sleep inclination monitoring unit 117.

[0086] Furthermore, after the signal acquisition module 101 obtains at least one heart failure physiological signal of the target user, the signal acquisition module 101 can send the at least one heart failure physiological signal to the processor 102, so that the processor 102 determines the heart failure index of the target user according to the at least one heart failure physiological signal.

[0087] Specifically, the processor 102 can calculate the heart failure index of the target user according to the preset index rules corresponding to each heart failure physiological signal. Among them, the preset index calculation rules can be the rules pre-set for analyzing the heart failure physiological signals to determine the degree of heart failure; the preset index calculation rules corresponding to different heart failure physiological signals are different.

[0088] For example, the preset index calculation rule corresponding to the heart sound signal can be to calculate the reference index corresponding to the heart sound signal according to the ratio between the intensity of the third heart sound and the intensity of the first heart sound in the heart sound signal. The preset index calculation rule corresponding to the electrocardiogram signal can be to calculate the reference index corresponding to the electrocardiogram signal according to the difference between the current heart rate and the preset stable heart rate in the electrocardiogram signal. The preset index calculation rule corresponding to the lung sound signal can be to calculate the reference index corresponding to the lung sound signal according to whether lung rales are detected in the lung sound signal and the intensity of the lung rales. The preset index calculation rule corresponding to the blood oxygen signal can be to calculate the reference index corresponding to the blood oxygen signal according to the oxygenation degree of hemoglobin in the blood oxygen signal. The preset index calculation rule corresponding to the respiratory signal can be to calculate the reference index corresponding to the respiratory signal according to the number of breaths per unit time in the respiratory signal. The preset index calculation rule corresponding to the impedance signal can be to calculate the reference index corresponding to the impedance signal according to the biological impedance in the impedance signal. The preset index calculation rule corresponding to the sleep inclination signal can be to calculate the reference index corresponding to the sleep inclination signal according to the change value of the sleep inclination in the sleep inclination signal.

[0089] Optionally, the processor 102 is specifically configured to determine the signal reference index corresponding to the heart failure physiological signal according to at least one received heart failure physiological signal and the preset index calculation rule corresponding to the heart failure physiological signal, and determine the heart failure index of the target user based on the signal reference index corresponding to at least one heart failure physiological signal and the preset weight corresponding to the heart failure physiological signal.

[0090] That is, the signal reference index corresponding to each heart failure physiological signal can be calculated according to the preset index calculation rule corresponding to each heart failure physiological signal. Further, through the preset weights corresponding to each heart failure physiological signal, each signal reference index is comprehensively combined to obtain the heart failure index. Among them, the preset weights corresponding to each heart failure physiological signal can be determined according to the number of monitored heart failure physiological signals and / or the importance degree of the heart failure physiological signals.

[0091] For example, if the heart failure physiological signals include heart sound signals, electrocardiogram signals, lung sound signals, blood oxygen signals, respiratory signals, impedance signals, and sleep inclination signals; the heart failure index = a * heart sound signal + b * electrocardiogram signal + c * lung sound signal + d * blood oxygen signal + e * respiratory signal + f * impedance signal + g * sleep inclination signal.

[0092] By using the physiological signals of heart failure and their corresponding preset index calculation rules, the signal reference indexes corresponding to the physiological signals of heart failure are calculated, and then the heart failure index integrating the signal reference indexes is calculated according to the preset weights corresponding to the physiological signals of heart failure, thus accurately determining the heart failure index.

[0093] Exemplarily, the process of calculating the signal reference index according to the preset index calculation rule is illustrated by way of example. That is, optionally, the processor 102 is further configured to perform at least one of the following operations:

[0094] If a heart sound signal is received and a third heart sound is detected in the heart sound signal, then the signal reference index corresponding to the heart sound signal is determined based on the intensity of the third heart sound; if an electrocardiogram signal is received, then the actual heart rate of the target user is determined based on the electrocardiogram signal, and the signal reference index corresponding to the electrocardiogram signal is determined based on the actual heart rate and the preset stable heart rate; if a lung sound signal is received and a rale signal is detected in the lung sound signal, then the signal reference index corresponding to the lung sound signal is determined based on the intensity of the rale signal; if a blood oxygen signal is received, then the signal reference index corresponding to the blood oxygen signal is determined based on the actual blood oxygen saturation and the preset reference saturation in the blood oxygen signal; if a respiratory signal is received, then the signal reference index corresponding to the respiratory signal is determined based on the current respiratory rate and the historical respiratory rate corresponding to the respiratory signal; if a bioimpedance signal is received, then the signal reference index corresponding to the bioimpedance signal is determined based on the current bioimpedance and the preset stable impedance in the bioimpedance signal; if a sleep inclination signal is received, then the average sleep inclination of the target user within the current preset time period is determined based on the sleep inclination signal, and the signal reference index corresponding to the sleep inclination signal is determined based on the average sleep inclination within the current preset time period and the average sleep inclination within the previous preset time period.

[0095] Among them, in the heart sound signal, the third heart sound is a typical symptom of systolic heart failure. The third heart sound is related to the left ventricular filling pressure. The higher the left ventricular filling pressure, the stronger the third heart sound. Generally, the left ventricular punching pressure of patients with pulmonary edema increases, and correspondingly, the third heart sound of patients with pulmonary edema is higher than the normal level. Therefore, the change trend of the intensity of the third heart sound in the heart sound signal can be used to calculate the heart failure index of the target user, or the ratio of the intensity of the third heart sound to the intensity of the first heart sound, or the product of the intensity of the third heart sound and the intensity of the first heart sound in the heart sound signal can be used to calculate the signal reference index corresponding to the heart sound signal. Or, a prediction model can be trained according to the heart sound waveforms of different patients collected in advance, and the electrocardiogram signal of the target user is input into the prediction model to obtain the predicted waveform output by the prediction model, and the signal reference index corresponding to the heart sound signal is calculated according to the predicted waveform. Exemplarily, if the ratio of the intensity of the third heart sound to the intensity of the first heart sound reaches 5% each time, then one point is accumulated in the signal reference index corresponding to the heart sound signal.

[0096] The electrocardiogram (ECG) signal may include the heart rate information of the target user. One of the early manifestations of heart failure is an increase in heart rate. Therefore, the average heart rate when the target user's condition is stable can be set as the preset stable heart rate, or the average heart rate of the target user within a historical time period can be set as the preset stable heart rate. The signal reference index corresponding to the ECG signal is determined by the difference between the actual heart rate in the ECG signal and the preset stable heart rate; for example, every time the difference between the actual heart rate and the preset stable heart rate reaches 10 beats, one point is accumulated in the signal reference index corresponding to the ECG signal. Alternatively, a heart rate recovery event of the target user can also be obtained based on the ECG signal. The heart rate recovery event can be the process of the target user's heart rate recovering from a high heart rate to a low heart rate. The signal reference index corresponding to the ECG signal is calculated based on the duration of the heart rate recovery event reaching the base heart rate and / or the difference between the base heart rate and the preset stable heart rate.

[0097] Considering that the deterioration of heart failure can lead to pulmonary edema, therefore, when a rale signal is detected in the lung sound signal, the signal reference index corresponding to the lung sound signal is calculated based on the intensity of the rale signal.

[0098] Considering that the blood supply capacity of the heart decreases when a patient has heart failure, and the decline in the gas exchange capacity between the alveoli and blood vessels caused by pulmonary edema due to heart failure jointly leads to a decrease in blood oxygen saturation. The blood oxygen saturation can use a specific value or range to indicate the degree of heart failure of the patient. For example, when the arterial blood oxygen saturation is higher than 94%-98%, it is considered that the heart is normal, otherwise it is considered that there is a possibility of heart failure. Therefore, the preset reference saturation can be set to any value within 94%-98%, such as 94%. The signal reference index corresponding to the blood oxygen signal is calculated based on the difference between the actual blood oxygen saturation and the preset reference saturation time. Exemplarily, every time the difference between the actual blood oxygen saturation and the preset reference saturation time reaches 2%, one point is accumulated in the signal reference index corresponding to the blood oxygen signal.

[0099] Considering that the number of breaths per unit time of a heart failure patient will increase as the severity of heart failure increases. Therefore, the current breathing frequency of the target user can be determined from the breathing signal, and the signal reference index corresponding to the breathing signal is calculated based on the gap between the current breathing frequency and the historical breathing frequency. Exemplarily, every time the gap between the breathing frequency and the historical breathing frequency reaches 10%, one point is accumulated in the signal reference index corresponding to the breathing signal; or, every time the difference in the number of breaths between the breathing frequency and the historical breathing frequency reaches 6 breaths per minute, one point is accumulated in the signal reference index corresponding to the breathing signal. Among them, the historical breathing frequency can be the average breathing frequency of the target user within a historical time period.

[0100] Considering that one of the clinical manifestations of heart failure is edema, during the formation of edema, the bioimpedance of the patient gradually decreases. Therefore, the degree of edema of the patient can be determined based on the change in bioimpedance, and then the degree of heart failure can be determined. Specifically, the current bioimpedance of the target user can be measured in real time by the Optivol method, that is, by emitting pulses to measure the bioimpedance, and then the signal reference index corresponding to the bioimpedance signal can be calculated based on the difference between the current bioimpedance and the preset stable impedance. For example, compared with the preset stable impedance, every 5% reduction in the current bioimpedance accumulates one point in the signal reference index corresponding to the bioimpedance signal. Among them, the preset stable impedance can be the baseline bioimpedance when the condition of the target user is stable.

[0101] Considering that another manifestation of heart failure is an increase in the sleep inclination angle. Therefore, the average sleep inclination angle of the target user within the current preset time period can also be calculated, and the signal reference index corresponding to the sleep inclination angle signal can be calculated based on the difference between the average sleep inclination angle within the current preset time period and the average sleep inclination angle within the previous preset time period. For example, compared with the average sleep inclination angle within the previous preset time period, every 5-degree increase in the average sleep inclination angle within the current preset time period accumulates one point in the signal reference index corresponding to the sleep inclination angle signal. Among them, the current preset time period can be a preset fixed sleep time period, such as 0-6 o'clock, or it can also be the sleep time period measured in real time by an accelerometer. The average sleep inclination angle within the previous preset time period can be the average sleep inclination angle within the sleep time period of the previous day, or the average sleep inclination angle within the sleep time period of the previous week, etc.

[0102] In the above example, the accurate calculation of the signal reference index corresponding to various heart failure physiological signals is realized, and then a heart failure index that can accurately characterize the heart failure state of the target user is obtained.

[0103] Furthermore, after obtaining the heart failure index of the target user, the actual heart failure degree corresponding to the target user can be determined according to the preset index ranges and the heart failure degrees corresponding to the index ranges. If the actual heart failure degree reaches the preset alarm degree, a prompt message can be sent to the terminal device of the doctor associated with the target user. Or, a medical treatment prompt message can also be sent to the terminal device of the target user when the actual heart failure degree reaches the preset alarm degree. Or, when the actual heart failure degree reaches the preset alarm degree, the external defibrillator can also be controlled to be in a standby state to facilitate defibrillating the target user in time through the external defibrillator.

[0104] The heart failure monitoring system provided in this embodiment collects at least one heart failure physiological signal of the target user according to the signal acquisition module, and the processor calculates the heart failure index of the target user according to at least one heart failure physiological signal and the preset index calculation rules corresponding to each heart failure physiological signal, realizing the monitoring of the heart failure state of the user, being able to detect the heart failure degree of the user in real time, solving the technical problem that the deterioration of the patient's heart failure condition cannot be detected in time. Moreover, this heart failure index can also be used as auxiliary information for doctors to judge the condition, such as deciding whether to adjust the medication or go to the hospital for treatment.

[0105] Embodiment 2

[0106] Figure 2A FIG. is a schematic structural diagram of a heart failure monitoring system provided in Embodiment 2 of the present invention. On the basis of the above embodiments, this embodiment further includes a wearable cardiac defibrillator. As Figure 2A shown, the heart failure monitoring system provided in this embodiment includes a cardiac monitor 20 and a wearable cardiac defibrillator 21. The cardiac monitor 20 includes a signal acquisition module 201, a processor 202, and a first communication module 203. The signal acquisition module 201 at least includes an electrocardiogram monitoring unit 2010.

[0107] Among them, the processor 202 is further configured to detect whether a cardiac event occurs to the target user according to the electrocardiogram signal. If so, it sends a defibrillation instruction to the wearable cardiac defibrillator 21 through the first communication module 203. The wearable cardiac defibrillator 21 is configured to perform a defibrillation operation on the target user according to the defibrillation instruction and feedback a defibrillation completion signal to the processor 202 after the defibrillation operation is completed.

[0108] Specifically, the processor 202 can judge whether a cardiac event occurs to the target user according to the electrocardiogram signal collected by the electrocardiogram monitoring unit 2010 in the signal acquisition module 201. Among them, the cardiac event can be ventricular fibrillation or malignant arrhythmia. Exemplarily, the processor 202 can detect whether a cardiac event occurs to the target user according to the probability counting method and the electrocardiogram signal, that is, it can determine the proportion of heartbeats falling within the ventricular tachycardia / ventricular fibrillation partition range in the electrocardiogram signal, and judge whether a cardiac event occurs to the target user based on this proportion. For example, if 18 heart rates are detected to fall within the ventricular tachycardia / ventricular fibrillation partition range in a 24-beat electrocardiogram signal, it can be determined that a cardiac event has occurred to the target user and the target user needs to be shocked.

[0109] In this embodiment, when the processor 202 detects that a cardiac event occurs to the target user, it can send a defibrillation instruction to the wearable cardiac defibrillator 21 through the first communication module 203. After receiving the defibrillation instruction, the wearable cardiac defibrillator 21 performs a defibrillation operation on the target user through the defibrillation electrodes, and after the defibrillation operation is completed, it feeds back a defibrillation completion signal to the processor 202. Further, after receiving the defibrillation completion signal, the processor 202 can continue to determine whether the target user still has a cardiac event based on the electrocardiogram signal. If so, the processor 202 can continue to send a defibrillation instruction to the wearable cardiac defibrillator 21.

[0110] Generally speaking, when a cardiac event occurs to the target user, defibrillation can be performed on the target user in the above manner six times. That is, the processor 202 can detect the number of times the wearable cardiac defibrillator 21 completes the defibrillation operation. If the target user still has a cardiac event after six defibrillations, the defibrillation operation can be stopped, and the processor 202 can send an alarm message to the doctor's terminal through the first communication module 203 or call a preset alarm number.

[0111] Exemplarily, as Figure 2B shown, a schematic diagram of a wearable cardiac defibrillator is presented. The wearable cardiac defibrillator 21 includes at least a first defibrillation electrode and a second defibrillation electrode. A defibrillation vector can be formed between the first defibrillation electrode and the second defibrillation electrode, and the defibrillation vector can cover the cardiac tissue of the target user to perform a defibrillation operation on the target user.

[0112] Optionally, the wearable cardiac defibrillator 21 is further configured to, when receiving a defibrillation instruction including the event degree corresponding to the cardiac event, determine the defibrillation energy corresponding to the target user according to the event degree, and perform a defibrillation operation on the target user based on the defibrillation energy.

[0113] That is, when the processor 202 detects that a cardiac event occurs to the target user, it can determine the event degree corresponding to the cardiac event, and then send a defibrillation instruction including the event degree to the wearable cardiac defibrillator 21. The wearable cardiac defibrillator 21 determines the corresponding defibrillation energy according to the event degree and performs defibrillation on the target user through the defibrillation energy. Through this method, the defibrillation energy can be accurately determined according to the event degree when the target user has a cardiac event, making the defibrillation operation of the wearable cardiac defibrillator more in line with the actual needs of the patient.

[0114] In this embodiment, the processor 202 can directly determine whether there is a cardiac event based on the electrocardiogram signal. In addition, in order to prevent misjudgment of cardiac events caused by interference of the electrocardiogram signal, an accelerometer can also be set in the signal acquisition module 201 to verify the cardiac event through the acceleration of the target user collected by the accelerometer.

[0115] That is, optionally, the signal acquisition module 201 further includes an accelerometer; the accelerometer is configured to acquire the acceleration signal of the target user and send the acceleration signal to the processor 202; the processor 202 is further configured to detect whether a cardiac event occurs to the target user based on the acceleration signal and the electrocardiogram signal.

[0116] Specifically, the processor 202 may determine whether the target user has fallen according to the acceleration signal. If so, it further determines whether there is a cardiac event according to the electrocardiogram signal. Alternatively, the processor 202 may first determine whether there may be a cardiac event according to the electrocardiogram signal. If so, it further determines whether the target user has fallen according to the acceleration signal. If it is determined that the target user has fallen, it is determined that the target user has had a cardiac event. Through this method, the verification of cardiac events is realized, and the situation of misjudging cardiac events caused by interference of electrocardiogram signals is avoided.

[0117] In this embodiment, in addition to verifying cardiac events based on acceleration signals, it is also possible to set a heart sound monitoring unit in the signal acquisition module 201, and verify whether a cardiac event occurs to the target user bidirectionally through the heart sound signal collected by the heart sound monitoring unit and the electrocardiogram signal collected by the electrocardiogram monitoring unit.

[0118] That is, optionally, the signal acquisition module 201 further includes a heart sound monitoring unit; the processor 202 is further configured to calculate a first heart rate according to the electrocardiogram signal, calculate a second heart rate according to the heart sound signal, and determine whether a cardiac event occurs to the target user based on the first heart rate and the second heart rate.

[0119] Specifically, it may be determined whether the proportion of heartbeats in the first heart rate of the electrocardiogram signal that fall within the ventricular tachycardia / ventricular fibrillation partition range is greater than a preset partition ratio. If so, it indicates that the target user may have a cardiac event. Further, it may be determined whether the difference between the first heart rate and the second heart rate is less than a set difference. If so, it may be determined that the first heart rate is reliable and the target user has a cardiac event. Alternatively, it may also first determine whether the difference between the first heart rate and the second heart rate is less than a set difference. If so, when it is determined that the proportion of heartbeats in the first heart rate of the electrocardiogram signal that fall within the ventricular tachycardia / ventricular fibrillation partition range is greater than a preset partition ratio, or it is determined that the proportion of heartbeats in the second heart rate of the heart sound signal that fall within the ventricular tachycardia / ventricular fibrillation partition range is greater than a preset partition ratio, it is determined that the target user has a cardiac event. Through this method, the determination of cardiac events based on heart sound signals and electrocardiogram signals is realized, and the situation of misjudging cardiac events caused by interference of electrocardiogram signals is avoided.

[0120] Exemplarily, such as Figure 2CAs shown, it shows a schematic diagram of the determination process of a cardiac event based on heart sound signals and electrocardiogram signals. Specifically, the first heart rate is calculated based on the electrocardiogram signal, the second heart rate is calculated based on the heart sound signal, and it is determined whether ventricular fibrillation occurs in the first heart rate. If so, it is then determined whether ventricular fibrillation occurs in the second heart rate. If ventricular fibrillation also occurs in the second heart rate, an alarm signal is sent, and it is determined whether to cancel the alarm signal. If not, a defibrillation operation is performed. If so, the monitoring of the electrocardiogram signal and the heart rate signal is continued. If ventricular fibrillation does not occur in the first heart rate or the second heart rate, the monitoring of the electrocardiogram signal and the heart rate signal is continued. This process can be executed by the processor 202 in the cardiac monitor.

[0121] In another alternative embodiment, the wearable cardiac defibrillator 21 includes an electrocardiogram module and sensing electrodes; wherein, the electrocardiogram module is used to calculate the third heart rate of the target user based on the electrocardiogram signal collected by the sensing electrodes, and determine whether a cardiac event occurs to the target user based on the third heart rate; the wearable cardiac defibrillator 21 is further used to perform a defibrillation operation on the target user if it receives a defibrillation instruction sent by the processor 202 and the electrocardiogram module determines that a cardiac event occurs to the target user. Among them, the sensing electrodes can be electrodes shared with the defibrillation electrodes or independent electrodes.

[0122] That is, it is also possible to verify whether a cardiac event occurs to the target user through the electrocardiogram module and sensing electrodes inside the wearable cardiac defibrillator 21. Specifically, the electrocardiogram module of the wearable cardiac defibrillator 21 can calculate the third heart rate for the electrocardiogram signal collected by the sensing electrodes. If the processor 202 sends a defibrillation instruction, it indicates that the processor 202 determines that a cardiac event occurs based on the electrocardiogram signal of the electrocardiogram monitoring unit, or the processor 202 determines that a cardiac event occurs based on the electrocardiogram signal of the electrocardiogram monitoring unit and the heart sound signal of the heart sound monitoring unit. At this time, the electrocardiogram module of the wearable cardiac defibrillator 21 can determine whether a cardiac event occurs based on the third heart rate. If the electrocardiogram module also determines that a cardiac event occurs, the wearable cardiac defibrillator 21 can perform defibrillation on the target user. Through this method, the further verification of cardiac events is realized, and the situation of misjudging cardiac events caused by interference in the electrocardiogram signal is avoided.

[0123] Exemplarily, such as Figure 2DAs shown in the figure, a schematic diagram of a cardiac event determination process based on a wearable cardiac defibrillator and a cardiac monitor is presented. Among them, the cardiac monitor respectively collects electrocardiogram signals and heart sound signals through its internal electrocardiogram monitoring unit and heart sound monitoring unit, calculates the first heart rate and the second heart rate based on the electrocardiogram signals and heart sound signals respectively, and sends the determination result of whether ventricular fibrillation has occurred to the wearable cardiac defibrillator according to the first heart rate and the second heart rate. The wearable cardiac defibrillator collects electrocardiogram signals according to the sensing electrodes, calculates the third heart rate based on the electrocardiogram signals, determines whether ventricular fibrillation has occurred in the third heart rate. If so, it determines whether the determination result sent by the cardiac monitor is that ventricular fibrillation has occurred. If so, it controls to emit an alarm signal and determines whether to cancel the alarm signal. If not, it performs a defibrillation operation. If so, it returns to continue monitoring the electrocardiogram signals and heart rate signals. If there is no ventricular fibrillation in the third heart rate, or the determination result sent by the cardiac monitor is that ventricular fibrillation has not occurred, it returns to continue monitoring the electrocardiogram signals.

[0124] In the heart failure monitoring system provided in this embodiment, the processor can also determine whether a cardiac event has occurred to the target user according to the electrocardiogram signals detected by the electrocardiogram monitoring unit in the signal acquisition module, and when a cardiac event occurs to the target user, send a defibrillation instruction to the wearable cardiac defibrillator in the system, so that the wearable cardiac defibrillator performs a defibrillation operation on the target user when a cardiac event occurs to the target user, realizing the monitoring of the user's cardiac events, and performing defibrillation on the user through the wearable cardiac defibrillator when a cardiac event occurs to the user for first aid.

[0125] Embodiment III

[0126] Figure 3A It is a schematic structural diagram of a heart failure monitoring system provided by Embodiment III of the present invention. On the basis of the above embodiments, this embodiment further includes an external cardiac defibrillator. As Figure 3A shown, the heart failure monitoring system provided in this embodiment includes a cardiac monitor 30, a wearable cardiac defibrillator 31, and an external cardiac defibrillator 32. The cardiac monitor 30 includes a signal acquisition module 301, a processor 302, and a first communication module 303. The signal acquisition module 301 at least includes an electrocardiogram monitoring unit 3010; the external cardiac defibrillator 32 includes a second communication module 320 and an indicator 321.

[0127] Among them, the processor 302 is further configured to send an event processing signal to the second communication module 320 of the external cardiac defibrillator 32 through the first communication module 303 when detecting that a cardiac event has occurred to the target user; the external cardiac defibrillator 32 is configured to control the indicator 321 to play or display an alarm signal when receiving the event processing signal.

[0128] In this embodiment, when the processor 302 detects that a cardiac event occurs to the target user, it can send an event processing signal to the second communication module 320 in the external cardiac defibrillator 32 through the first communication module 303. Further, the external cardiac defibrillator 32 can control the indicator 321 to play or display an alarm signal. Wherein, if the indicator 321 is in the form of an electronic screen or a signal lamp, the external cardiac defibrillator 32 can control the indicator 321 to display an alarm signal; if the indicator 321 is in the form of a voice playback device, such as a speaker. Then the external cardiac defibrillator 32 can control the indicator 321 to play an alarm signal.

[0129] It should be noted that the purpose of the external cardiac defibrillator 32 controlling the indicator 321 to play or display an alarm signal is: by playing or displaying an alarm signal, it can timely remind the target user or the family member of the target user that the target user has a cardiac event and first aid operations need to be performed on the target user in a timely manner.

[0130] In this embodiment, in addition to the external cardiac defibrillator 32 controlling the display or playback of an alarm signal, it can also send a prompt message to the family member or doctor of the target user. For example, the processor 302 is further configured to send an event prompt signal to the terminal device of the associated user associated with the target user through the first communication module 303 when detecting that a cardiac event occurs to the target user; or, the external cardiac defibrillator 32 is further configured to send an event prompt signal to the terminal device of the associated user through the second communication module 320 when receiving the event processing signal.

[0131] Among them, the associated users associated with the target user include but are not limited to the family members of the target user and the attending doctor of the target user. Specifically, the processor 302 can send an event prompt signal to the terminal device of the associated user through the first communication module 303 when detecting a cardiac event. Or, when the processor 302 detects a cardiac event, it sends an event prompt signal to the external cardiac defibrillator 32. Further, the external cardiac defibrillator 32 sends an event prompt signal to the terminal device of the associated user through the second communication module 320. The terminal device includes but is not limited to electronic devices with communication functions such as mobile phones, computers, smart watches or tablet computers, and the event prompt signal can be presented in the form of text messages, phone calls, voices, emails or WeChat messages.

[0132] In this way, through the processor or the external cardiac defibrillator, when a cardiac event occurs to the target user, a prompt signal can be sent to the family member or the attending doctor of the target user to remind the family member or the attending doctor of the target user that the target user has a cardiac event and first aid operations need to be performed on the target user in a timely manner.

[0133] In an alternative embodiment, the second communication module 320 includes a Bluetooth communication unit and a network communication unit; wherein, the second communication module 320 is further configured to obtain the current location of the associated user, and if the distance between the current location and the location of the extracorporeal defibrillator 32 does not exceed a preset distance threshold, send an event prompt signal to the terminal device of the associated user through the Bluetooth communication unit, and if the distance exceeds the preset distance threshold, send an event prompt signal to the terminal device through the network communication unit.

[0134] That is, the second communication module 320 of the extracorporeal defibrillator 32 can select the Bluetooth communication unit or the network communication unit to send an event prompt signal according to the current location of the associated user. Specifically, when the distance between the current location of the associated user and the location of the extracorporeal defibrillator 32 does not exceed the preset distance threshold, the Bluetooth communication unit is selected to send an event prompt signal to the terminal device of the associated user, and when the distance between the two exceeds the preset distance threshold, the network communication unit is selected to send an event prompt signal to the terminal device.

[0135] In this alternative embodiment, the home or out state of the associated user can be determined by the distance between the current location of the associated user and the location of the extracorporeal defibrillator 32. When the associated user is in the home state, a signal is sent through the Bluetooth communication unit; when the associated user is in the out state, a signal is sent through the network communication unit, ensuring that the associated user can receive an event prompt signal indicating that a cardiac event has occurred to the target user, and thus providing timely assistance to the target user.

[0136] Of course, the extracorporeal defibrillator 32 can also first send an event prompt signal to the terminal device of the associated user through the Bluetooth communication unit, and then send the event prompt signal to the cloud through the network communication unit, so that the cloud forwards the event prompt information to the terminal device of the associated user. By this means, a prompt signal can be sent to the terminal device of the associated user through the proximity signal first, and then a communication redundancy solution can be formed through the network communication unit and the cloud, further ensuring that the associated user can receive the event prompt signal, and thus ensuring that the target user can obtain timely assistance after a cardiac event occurs.

[0137] Of course, the extracorporeal defibrillator 32 can also perform a defibrillation operation on the target user when an event processing signal is received and it is detected that the target user has worn the extracorporeal defibrillator. Optionally, the extracorporeal defibrillator 32 further includes an electrocardiogram module, wherein the extracorporeal defibrillator 32 is further configured to perform a defibrillation operation on the target user when an event processing signal is received and it is determined according to the electrocardiogram module that the target user has had a cardiac event. That is, the extracorporeal defibrillator 32 can verify the cardiac event determined by the processor 302 through its internal electrocardiogram module, avoiding misjudgment of the cardiac event caused by interference of the electrocardiogram signal.

[0138] Optionally, the external cardiac defibrillator 32 also includes a microphone and a speaker; wherein the second communication module 320 is also used to receive voice signals sent by the terminal device of the associated user, and to send voice signals to the terminal device of the associated user; the external cardiac defibrillator 32 is also used to control the speaker to play the voice signal received through the second communication module 320, and to control the microphone to collect the voice signal and send the voice signal to the terminal device of the associated user through the second communication module 320.

[0139] Specifically, the external cardiac defibrillator 32 can control the speaker to play the voice signal sent by the associated user, and the microphone to collect the voice signal and send it to the associated user's terminal device. In this way, a question-and-answer session can be conducted between the associated doctor and the target user, or between the associated doctor and the target user's family, or between the target user and their family, to notify the target user's family to provide timely assistance to the target user, or to guide the target user's family in providing assistance to the target user.

[0140] Of course, if the terminal device of the associated user does not receive the voice signal fed back by the second communication module 320 within the set time, it means that the target user has not been treated within the set time, or the target user has suffered a malignant arrhythmia and is unable to respond. At this time, the terminal device of the associated user can call the terminal devices of other associated users through the telephone network, or automatically dial the preset emergency number.

[0141] For example, see Figure 3B , showing a schematic diagram of the process of sending an event processing signal. Among them, the heart monitor can send an event prompt signal to the external cardiac defibrillator after detecting a cardiac event, and send the event prompt signal to the terminal device of the associated user through the first communication module. After receiving the event prompt signal, the external cardiac defibrillator can send the event prompt signal to the cloud through the second communication module, and the cloud sends a call message to the external cardiac defibrillator based on the received event prompt signal. The external cardiac defibrillator can also send a rescue event signal to the cloud after a rescue event occurs, and the cloud initiates a call message to the terminal device of the associated user based on the rescue event signal.

[0142] In the heart failure monitoring system provided in this embodiment, when the processor detects that a cardiac event has occurred in a target user, it sends an event processing signal to the second communication module of the external cardiac defibrillator through the first communication module. The external cardiac defibrillator can then control the indicator to play or display an alarm signal, thereby reminding the target user of the cardiac event and prompting the user's family to perform defibrillation on the user in a timely manner.

[0143] Example 4

[0144] Figure 4A This is a schematic structural diagram of a heart failure monitoring system provided in the fourth embodiment of the present invention. On the basis of the above embodiments, the external cardiac defibrillator further includes a defibrillation interaction learning module, a microphone, and a display interface. As Figure 4A shown, the heart failure monitoring system provided in this embodiment includes a cardiac monitor 40, a wearable cardiac defibrillator 41, and an external cardiac defibrillator 42. The cardiac monitor 40 includes a signal acquisition module 401, a processor 402, and a first communication module 403. The signal acquisition module 401 at least includes an electrocardiogram monitoring unit 4010. The external cardiac defibrillator 42 includes a second communication module 420, an indicator 421, a defibrillation interaction learning module 422, a microphone 423, and a display interface 424.

[0145] Among them, the defibrillation interaction learning module 422 is configured to display interactive learning resources on the display interface, obtain the simulated operations performed by the learning user on the display interface 424 in response to the interactive learning resources and the simulated operations recorded on the microphone 423, and determine the corresponding interactive learning effect of the learning user based on the simulated operations.

[0146] In this embodiment, the defibrillation interaction learning module 422 can control the display interface 424 to display interactive learning resources through its internal processing unit. Among them, the interactive learning resources can be animations simulating the first aid process. Specifically, during the process of displaying the interactive learning resources, the learning user can perform simulated operations of the simulated treatment process on the display interface 424 according to the content of the interactive learning resources, or record the simulated operations of the simulated treatment process on the microphone 423. Such as the operation of simulating removing the patient's clothes on the display interface 424, the operation of simulating placing electrodes at the defibrillation position of the patient, or the operation of simulating cardiac massage, or the operation of simulating artificial respiration recorded on the microphone 423.

[0147] Furthermore, the defibrillation interaction learning module 422 can determine the corresponding interactive learning effect of the learning user according to the simulated operations performed by the learning user on the display interface 424 in response to the interactive learning resources and the simulated operations recorded on the microphone 423. Specifically, the defibrillation interaction learning module 422 can determine the interactive learning score corresponding to each simulated operation for the operation content, operation timing, and operation duration of each simulated operation, and then determine the corresponding interactive learning effect of the learning user based on the interactive learning scores corresponding to each simulated operation.

[0148] Exemplarily, the defibrillation interactive learning module 422 is further configured to obtain the treatment preprocessing simulation operations, treatment simulation operations, and first aid simulation operations performed by the learning user in response to the interactive learning resources on the display interface 424, and obtain the artificial respiration simulation operation recorded by the learning user on the microphone 423 in response to the interactive learning resources, and determine the corresponding interactive learning effect of the learning user based on the treatment preprocessing simulation operations, treatment simulation operations, first aid simulation operations, and artificial respiration simulation operations.

[0149] Among them, the treatment preprocessing simulation operations include, but are not limited to, simulating removing clothes and simulating placing electrodes. The treatment simulation operations can be simulating automatic diagnosis and simulating defibrillation. The first aid simulation operations can be simulating cardiac massage. The artificial respiration simulation operation can be simulating artificial respiration. The defibrillation interactive learning module 422 can display interactive learning resources on the display interface 424 for guiding the above various simulation operations, and can also play prompt voices for guiding the above various simulation operations through the microphone 423.

[0150] Specifically, the interactive learning score corresponding to the simulated clothes removal operation can be determined according to the clothes position simulated by the learning user to be removed in the simulated clothes removal operation and the preset clothes position, and the interactive learning score corresponding to the simulated clothes removal operation can be determined according to the time point and duration of removing clothes in the simulated clothes removal operation. The interactive learning score corresponding to the simulated electrode placement operation can also be determined according to the position where the learning user simulates placing the electrode in the simulated electrode placement operation and the preset electrode position, and the interactive learning score corresponding to the simulated electrode placement operation can be determined according to the duration and time point of placing the electrode in the simulated electrode placement operation.

[0151] Of course, the interactive learning score corresponding to the simulated automatic diagnosis operation can also be determined according to the time point and duration of the simulated automatic diagnosis operation. Or, the interactive learning score corresponding to the simulated defibrillation operation can be determined according to whether the learning user is away from the defibrillation object in the simulated defibrillation operation. This embodiment can also determine the interactive learning score corresponding to the artificial respiration simulation operation according to the simulation actions and simulation duration in the artificial respiration simulation operation; determine the interactive learning score corresponding to the first aid simulation operation according to the rhythm and time of the learning user massaging the heart in the first aid simulation operation.

[0152] Further, the defibrillation interaction learning module 422 can determine the interaction learning effect corresponding to the learning user according to the interaction learning scores corresponding to various simulation operations. For example, the interaction learning scores corresponding to various simulation operations are weighted and calculated according to the preset weights corresponding to various simulation operations to determine the interaction learning effect corresponding to the learning user. Among them, the interaction learning effect can be in the form of a score or in the form of a level, such as low level, medium level, high level, etc. Through this method, an accurate evaluation of the learning user's simulated treatment learning process is achieved. Of course, the defibrillation interaction learning module 422 can also display the interaction learning effect of the learning user on the display interface 424, or display the interaction learning scores corresponding to each simulation operation of the learning user, so that the learning user can clearly know the learning results of each simulation operation.

[0153] In this embodiment, after the learning user completes various simulation operations, the defibrillation interaction learning module 422 can also display learning suggestions on the display interface 424 according to the interaction learning effect of the learning user. For example, the learning suggestions can include the simulation operations with interaction learning scores lower than the preset value. After the learning user completes the simulation operation, the defibrillation interaction learning module 422 can also simulate the awakening of the defibrillation object and display information on the display interface 424 to remind the learning user to send the defibrillation object to the hospital.

[0154] It should be noted that the various simulation operations performed by the learning user in response to the interaction learning resources can be input on the display interface 424 or the microphone 423 of the external defibrillator 42, or can be input on the learning user's terminal device.

[0155] Exemplarily, as Figure 4B shown, a schematic diagram of the process for determining an interaction learning effect is shown. First, the interaction learning resources are displayed, then the simulated defibrillation operation performed by the learning user is obtained, and the simulated chest compression operation performed by the learning user by clicking the screen or pressing a button is obtained. The simulated artificial respiration operation performed by the learning user by blowing air into the microphone is obtained. It is judged whether the simulated treatment object wakes up according to the simulation operation. If not, the process returns to obtain the simulated defibrillation operation performed by the learning user. If so, this interaction learning is ended, and the interaction learning effect of the learning user is determined.

[0156] In this embodiment, the interaction learning effect of the learning user can not only be used to remind the learning user of the learning results of this time, but also be used as an activation parameter to determine the content that the learning user needs to learn next time, or to determine the time for the learning user to learn next time.

[0157] For example, optionally, the external cardiac defibrillator 42 further includes an activation module, where the activation module is configured to determine the resource content of the interactive learning resources displayed by the defibrillation interactive learning module and / or the time for displaying the interactive learning resources according to the interactive learning effect.

[0158] Exemplarily, the worse the interactive learning effect is, the more resource content of the interactive learning resources determined by the activation module is, and the closer the time for displaying the interactive learning resources is to the current time, that is, the more content for the next learning of the learning user is, and the shorter the time interval for the next learning is.

[0159] Specifically, the activation module can activate the defibrillation interactive learning module 422 to display the content of the interactive learning resources at this time according to the determined content and time of the interactive learning resources.

[0160] Optionally, the processor 402 is further configured to send the heart failure index to the activation module; the activation module is further configured to determine the resource content and / or the time for displaying the interactive learning resources according to the interactive learning effect and the heart failure index. That is, the heart failure index generated by the processor 402 in the cardiac monitor 40 can also be used to determine the resource content of the interactive learning resources for the next learning of the learning user, or to determine the time for the learning user to learn the interactive learning resources next time, or to determine the resource content and time for the next learning.

[0161] Exemplarily, if the degree of heart failure reflected by the heart failure index is small, the resource content of the displayed interactive learning resources can be less. For example, only the animation simulating first aid operations is displayed, or the interactive learning resources are only the animation guiding a simulation learning process. If the degree of heart failure reflected by the heart failure index is large, the closer the display time of the interactive learning resources is to the current time, or the more times of the simulation learning process included in the interactive learning resources, etc. By determining the resource content and / or the learning time of the next interactive learning resources of the learning user through the heart failure index of the target user and the previous interactive learning effect of the learning user, the determination of the learning content and the learning time combining the heart failure situation of the target user and the historical learning situation of the learning user is realized, and further the personalized determination of the learning content and the learning time is realized, ensuring that the learning content and the learning time of the learning user are more in line with the needs of the target user.

[0162] Exemplarily, the heart failure index score is divided into multiple score intervals, and different learning content for users and / or learning time intervals are set for different score intervals. For example, multiple intervals can be preset in advance, and each interval corresponds to a different heart failure index score range. For example, the heart failure index score range corresponding to the first interval is 0%-30%, the heart failure index score range corresponding to the second interval is 30%-60%, and the heart failure index score range corresponding to the third interval is 60%-100%. If the heart failure index score of the user is in the third interval, only the animation of the simulated first aid operation is displayed, and the learning time interval is set to once a month; if the heart failure index score of the user is in the second interval, interactive learning will be carried out immediately, and the interactive learning resource is only the animation guiding the simulated learning process; if the heart failure index score of the user is in the first interval, the animation of the simulated first aid operation and the animation of multiple simulated learning processes will be learned daily.

[0163] Optionally, the activation module can also determine the interactive learning effect, heart failure index, the time when the target user has a cardiac event, the number of times the target user has a cardiac event, the time of the previous defibrillation operation for the target user, and the proportion of the time when the associated user is away from home as parameters for activating the next learning time and / or learning content, and determine the resource content of the interactive learning resource and / or the time for displaying the interactive learning resource according to each parameter. Exemplarily, a decision tree can be set in the activation module, and the judgment conditions of the decision tree are the above-mentioned various parameters, and the resource content of the interactive learning resource and / or the time for displaying the interactive learning resource are determined through the decision tree.

[0164] The heart failure monitoring system provided in this embodiment obtains the simulated operations of the learning user through the defibrillation interactive learning module set in the external cardiac defibrillator, and determines the interactive learning effect of the learning user according to the simulated operations, realizing the evaluation of the learning process of the learning user, which is convenient for the learning user to clearly know the learning effect.

[0165] Optionally, the external cardiac defibrillator in this embodiment can also be used to educate the target user or the associated user. For example, the external cardiac defibrillator 42 is also used to display or play the basic information of the external cardiac defibrillator when it detects that the user education mode is activated, or send the basic information to the terminal device of the target user or the terminal device of the associated user associated with the target user through the second communication module 420, where the basic information includes the current device status, the electrode patch replacement cycle, the battery status, the fault handling information, and the contact information.

[0166] Among them, the automated external defibrillator 42 can activate the user education mode when it detects that it is in the hanging state. By starting the user education mode, the basic information of the device is displayed or played, or the basic information of the device is sent to the terminal device of the target user or associated user through the second communication module 420. Of course, when the automated external defibrillator 42 detects that the user education mode is activated, it can also play a first aid process tutorial or a description of key first aid actions through the display interface 424. Exemplarily, as Figure 4C shown, it shows a schematic diagram of the process of an automated external defibrillator activating the user education mode. When the automated external defibrillator is in the hanging state and the external power supply is normal, the user education mode is activated to display the corresponding basic information or educational animation.

[0167] Exemplarily, refer to Figure 4D , Figure 4D shown, it shows a schematic diagram of the placement of an automated external defibrillator. Among them, the automated external defibrillator can be hung on the wall through an adapter. The base not only has the function of accommodating the automated external defibrillator, but also can set a charging circuit inside the base, and connect to a 220V power supply through the charging circuit to supply power to the automated external defibrillator for a long time.

[0168] Refer to Figure 4E , Figure 4E shown, it shows a schematic diagram of an automated external defibrillator and a base. Among them, the base includes an output structure and a power management device. The power management device converts 220V voltage into the current for charging the automated external defibrillator, and connects to the charging input interface of the automated external defibrillator through the output interface. The AED uses the internal power management unit to manage the charging of the battery. The automated external defibrillator can obtain long-term power through the base, can maintain a long-term activated state, and thus support its normal screen startup to conduct interactive education for learning users.

[0169] In Figure 4E , the automated external defibrillator includes an indicator, which can be an indicator light or a sound alarm, etc. The automated external defibrillator also includes a sensing module, a control unit (Microcontroller Unit, MCU), a switching circuit, a battery, a treatment module, a screen, a second communication module, and an interactive learning module. Among them, the communication module can communicate with the terminal devices of target users, associated users, and the cloud in ways such as WIFI, Bluetooth, 5G, and near-field communication. The sensing module can acquire the electrocardiogram signal of the target user; the interactive learning module can use devices such as the screen or indicator to display interactive learning resources for learning users and determine the interactive learning effect of learning users.

[0170] It should be noted that the interactive learning module can not only be used to guide the rescuer to perform rescue operations when a cardiac event occurs to the target user, but also be used to provide learning guidance to the learning user when the external defibrillator is placed on the base. Exemplarily, as Figure 4F shown, a schematic diagram of an interactive learning module is presented. Among them, the interactive learning module includes a content module, a scoring module, an activation module, a feedback input module, a control module, and a timer. The control module is used to obtain the simulated operations of the learning user collected by the feedback input module during the process of presenting the interactive learning resources. The scoring module is used to determine the interactive learning effect of the learning user based on the simulated operations. This interactive learning effect can be input as a parameter into the activation module, and the activation module uses this parameter as a conditional parameter for activating the resource content and display time of the next presentation of the interactive learning resources by the interactive learning module. The timer is used to time the interactive learning process and the time for the learning user to perform the simulated operations. The timer can also provide the timing time to the activation module. The activation module can use various parameters as judgment conditions for activating the learning user to learn the interactive learning resources next time, automatically start the learning process of the interactive learning resources, and strengthen the first aid ability of the patient's family members through interactive learning to prevent the family members from panicking when the patient has malignant arrhythmia.

[0171] The above specific implementation manners do not constitute a limitation on the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub - combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A heart failure monitoring system, characterized in that, The heart failure monitoring system includes a cardiac monitor, a wearable cardiac defibrillator, and an external cardiac defibrillator. The cardiac monitor includes a signal acquisition module and a processor. The external cardiac defibrillator includes a defibrillation interaction learning module, a microphone, a display interface, and an activation module. Among them, The signal acquisition module, connected to the processor, is configured to acquire at least one heart failure physiological signal of a target user and send at least one of the heart failure physiological signals to the processor; The processor is configured to determine the heart failure index of the target user according to at least one of the received heart failure physiological signals and the preset index calculation rule corresponding to the heart failure physiological signal; The defibrillation interaction learning module is configured to display interactive learning resources on the display interface, acquire the simulated operations performed by the learning user on the display interface in response to the interactive learning resources and the simulated operations recorded on the microphone, and perform weighted calculation on the interactive learning scores corresponding to the simulated operations according to the preset weights corresponding to the simulated operations to determine the interactive learning effect corresponding to the learning user. Among them, the interactive learning effect is displayed in the form of a score or a level; The processor is further configured to send the heart failure index to the activation module; The activation module is configured to determine the interactive learning effect, the heart failure index, the time when the target user has a cardiac event, the number of times the target user has a cardiac event, the time of the previous defibrillation operation for the target user, and the proportion of the time when the associated user is away from home as parameters for activating the next learning time and / or learning content, and determine the resource content of the interactive learning resources and / or the time for displaying the interactive learning resources according to the parameters; 2. The system according to claim 1, wherein The signal acquisition module includes at least one of a heart sound monitoring unit, an electrocardiogram monitoring unit, a lung sound monitoring unit, a blood oxygen monitoring unit, a respiration monitoring unit, an impedance monitoring unit, and a sleep inclination monitoring unit. Among them, The heart sound monitoring unit is configured to acquire the heart sound signal of the target user; The electrocardiogram monitoring unit is configured to acquire the electrocardiogram signal of the target user; The lung sound monitoring unit is configured to acquire the lung sound signal of the target user; The blood oxygen monitoring unit is configured to acquire the blood oxygen signal of the target user; The respiration monitoring unit is configured to acquire the respiration signal of the target user; The impedance monitoring unit is configured to acquire the impedance signal of the target user; The sleep inclination monitoring unit is configured to acquire the sleep inclination signal of the target user.

3. The system according to claim 2, wherein The processor is specifically configured to determine the signal reference index corresponding to the heart failure physiological signal according to at least one of the received heart failure physiological signals and the preset index calculation rule corresponding to the heart failure physiological signal, and determine the heart failure index of the target user based on the signal reference index corresponding to at least one of the heart failure physiological signals and the preset weight corresponding to the heart failure physiological signal.

4. The system according to claim 3, wherein The processor is further configured to perform at least one of the following operations: If the heart sound signal is received and a third heart sound is detected in the heart sound signal, determine the signal reference index corresponding to the heart sound signal based on the intensity of the third heart sound; If the electrocardiogram signal is received, determine the actual heart rate corresponding to the target user based on the electrocardiogram signal, and determine the signal reference index corresponding to the electrocardiogram signal based on the actual heart rate and the preset stable heart rate; If the lung sound signal is received and a rale signal is detected in the lung sound signal, determine the signal reference index corresponding to the lung sound signal based on the intensity of the rale signal; If the blood oxygen signal is received, determine the signal reference index corresponding to the blood oxygen signal based on the actual blood oxygen saturation in the blood oxygen signal and the preset reference saturation; If the respiration signal is received, determine the signal reference index corresponding to the respiration signal based on the current respiration frequency and the historical respiration frequency corresponding to the respiration signal; If the impedance signal is received, determine the signal reference index corresponding to the impedance signal based on the current biological impedance in the impedance signal and the preset stable impedance; If the sleep inclination signal is received, determine the average sleep inclination of the target user within the current preset time period based on the sleep inclination signal, and determine the signal reference index corresponding to the sleep inclination signal based on the average sleep inclination within the current preset time period and the average sleep inclination within the previous preset time period.

5. The system according to claim 2, wherein The cardiac monitor further includes a first communication module, and the signal acquisition module at least includes the electrocardiogram monitoring unit; The processor is further configured to detect whether a cardiac event occurs to the target user according to the electrocardiogram signal, and if so, send a defibrillation instruction to the wearable cardiac defibrillator through the first communication module; The wearable cardiac defibrillator is configured to perform a defibrillation operation on the target user according to the defibrillation instruction, and feedback a defibrillation completion signal to the processor after the defibrillation operation is completed.

6. The system according to claim 5, characterized in that The signal acquisition module further includes an accelerometer; The accelerometer is configured to acquire the acceleration signal of the target user and send the acceleration signal to the processor; The processor is further configured to detect whether a cardiac event occurs to the target user based on the acceleration signal and the electrocardiogram signal.

7. The system according to claim 5, characterized in that, The signal acquisition module further includes the heart sound monitoring unit; The processor is further configured to calculate a first heart rate according to the electrocardiogram signal, calculate a second heart rate according to the heart sound signal, and determine whether a cardiac event occurs to the target user based on the first heart rate and the second heart rate.

8. The system according to claim 7, wherein The wearable cardiac defibrillator includes an electrocardiogram module and sensing electrodes; wherein, The electrocardiogram module is configured to calculate a third heart rate of the target user according to the electrocardiogram signal acquired by the sensing electrodes, and determine whether a cardiac event occurs to the target user based on the third heart rate; The wearable cardiac defibrillator is further configured to perform a defibrillation operation on the target user if it receives the defibrillation instruction sent by the processor and the electrocardiogram module determines that a cardiac event occurs to the target user.

9. The system according to claim 5, wherein The wearable cardiac defibrillator is further configured to, when receiving a defibrillation instruction including the event degree corresponding to the cardiac event, determine the defibrillation energy corresponding to the target user according to the event degree, and perform a defibrillation operation on the target user based on the defibrillation energy.

10. The system according to claim 5, wherein The extracorporeal defibrillator includes a second communication module and an indicator; wherein, The processor is further configured to, when detecting that a cardiac event occurs to the target user, send an event processing signal to the second communication module of the extracorporeal defibrillator through the first communication module; The extracorporeal defibrillator is configured to, when receiving the event processing signal, control the indicator to play or display an alarm signal.

11. The system according to claim 10, wherein The processor is further configured to, when detecting that a cardiac event occurs to the target user, send an event prompt signal to the terminal device of an associated user associated with the target user through the first communication module; or, The extracorporeal defibrillator is further configured to, when receiving the event processing signal, send an event prompt signal to the terminal device of the associated user through the second communication module.

12. The system according to claim 11, wherein The extracorporeal defibrillator further includes a microphone and a speaker; wherein, The second communication module is further configured to receive a voice signal sent by the terminal device of the associated user, and send a voice signal to the terminal device of the associated user; The extracorporeal defibrillator is further configured to control the speaker to play the voice signal received through the second communication module, and control the microphone to collect a voice signal, and send the voice signal to the terminal device of the associated user through the second communication module.

13. The system according to claim 11, wherein The second communication module includes a Bluetooth communication unit and a network communication unit; wherein, The second communication module is further configured to obtain the current location of the associated user. If the distance between the current location and the location of the extracorporeal defibrillator does not exceed a preset distance threshold, an event prompt signal is sent to the terminal device of the associated user through the Bluetooth communication unit. If the distance exceeds the preset distance threshold, an event prompt signal is sent to the terminal device through the network communication unit.

14. The system according to claim 10, wherein The extracorporeal defibrillator further includes an electrocardiogram module. Wherein, the extracorporeal defibrillator is further configured to, when receiving the event processing signal, if it is determined according to the electrocardiogram module that a cardiac event occurs to the target user, perform a defibrillation operation on the target user.

15. The system according to claim 10, wherein The extracorporeal defibrillator is further configured to, when detecting that the user education mode is activated, display or play the basic information of the extracorporeal defibrillator, or send the basic information to the terminal device of the target user or the terminal device of an associated user associated with the target user through the second communication module, where the basic information includes the current state of the device, the electrode patch replacement cycle, the battery state, the fault handling information, and the contact information.

16. The system according to claim 1, wherein, The activation module is further configured to determine the resource content of the interactive learning resource displayed by the defibrillation interactive learning module and / or the time for displaying the interactive learning resource according to the interactive learning effect.

17. The system according to claim 1, characterized in that, The defibrillation interactive learning module is further configured to obtain the treatment preprocessing simulation operations, treatment simulation operations, and first aid simulation operations performed by the learning user in response to the interactive learning resources on the display interface, and obtain the artificial respiration simulation operations recorded by the learning user in response to the interactive learning resources on the microphone, and determine the corresponding interactive learning effect of the learning user based on the treatment preprocessing simulation operations, the treatment simulation operations, the first aid simulation operations, and the artificial respiration simulation operations.

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