CN114983355A - Heart failure monitoring system - Google Patents

Abstract

The invention discloses a heart failure monitoring system, wherein a signal acquisition module in the heart failure monitoring system acquires at least one heart failure physiological signal of a target user, a processor in the heart failure monitoring system 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, so that the heart failure state of the user is monitored, the heart failure degree of the user can be detected in real time, the technical problem that the deterioration of the heart failure state of the patient cannot be found in time is solved, and the heart failure index can also be used as auxiliary information for judging the state of the patient by a doctor, such as determining whether to adjust medicine or go to a hospital for diagnosis.

Description

Heart failure monitoring system

Technical Field

The invention relates to the technical field of medical equipment, in particular to a heart failure monitoring system.

Background

The heart failure is a degenerative chronic disease which can not be completely cured, and the condition of the heart failure patient is often repeatedly worsened after the treatment. At the beginning of acute exacerbation of heart failure, since the nervous system does not sense deterioration in the heart, it is only discovered until the patient has developed severe symptoms such as dyspnea, etc., and the heart muscle is already severely damaged.

Therefore, early detection of signals of acute exacerbation and timely adjustment of treatment schemes and medication are important methods for prolonging the life cycle of patients. However, in the process of implementing the present invention, at least the following technical problems have been found in the prior art: the prior art can not find the heart failure disease deterioration of the patient as early as possible, and further, the condition of the patient is difficult to be pre-warned and the treatment is difficult to be adjusted to prevent the heart failure deterioration.

Disclosure of Invention

The invention provides a heart failure monitoring system, which is used for monitoring the heart failure state of a user and solving the technical problem that the condition deterioration of the heart failure of a patient cannot be found in time.

According to an aspect of the present invention, there is provided a heart failure monitoring system, characterized in that it comprises a heart monitor comprising a signal acquisition module and a processor; wherein the content of the first and second substances,

the signal acquisition module is connected with the processor and used for acquiring at least one heart failure physiological signal of a target user and sending the at least one heart failure physiological signal to the processor;

the processor is used for determining the heart failure index of the target user according to the received at least one heart failure physiological signal and a preset index calculation rule corresponding to the heart failure physiological signal.

Optionally, the signal acquisition module comprises 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, wherein,

the heart sound monitoring unit is used for acquiring a heart sound signal of a target user;

the electrocardio monitoring unit is used for acquiring electrocardiosignals of a target user;

the lung sound monitoring unit is used for acquiring a lung sound signal of a target user;

the blood oxygen monitoring unit is used for acquiring a blood oxygen signal of a target user;

the respiration monitoring unit is used for acquiring a respiration signal of a target user;

the impedance monitoring unit is used for acquiring an impedance signal of a target user;

the sleep inclination angle monitoring unit is used for acquiring a sleep inclination angle signal of a target user.

Optionally, the processor is specifically configured to determine a signal reference index corresponding to the heart failure physiological signal according to the received at least one heart failure physiological signal and a 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 the at least one heart failure physiological signal and a preset weight corresponding to the heart failure physiological signal.

Optionally, 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 to exist in the heart sound signal, determining a signal reference index corresponding to the heart sound signal based on the strength of the third heart sound;

if the electrocardiosignals are received, determining the actual heart rate corresponding to the target user based on the electrocardiosignals, and determining the signal reference index corresponding to the electrocardiosignals based on the actual heart rate and the preset stable heart rate;

if the lung sound signals are received and whether a rale signal exists in the lung sound signals is detected, determining a signal reference index corresponding to the lung sound signals based on the strength of the rale signal;

if the blood oxygen signal is received, determining a signal reference index corresponding to the blood oxygen signal based on the actual blood oxygen saturation in the blood oxygen signal and a preset reference saturation;

if the respiration signal is received, determining a 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 bio-impedance signal is received, determining a signal reference index corresponding to the bio-impedance signal based on the current bio-impedance in the bio-impedance signal and a preset stable impedance;

if the sleep inclination angle signal is received, determining an average sleep inclination angle of the target user in a current preset time period based on the sleep inclination angle signal, and determining a signal reference index corresponding to the sleep inclination angle signal based on the average sleep inclination angle in the current preset time period and the average sleep inclination angle in a last preset time period.

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 electrocardiograph monitoring unit;

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

the wearable cardiac defibrillator is used for performing defibrillation operation on the target user according to the defibrillation instruction and feeding back a defibrillation completion signal to the processor after the defibrillation operation is completed.

Optionally, the signal acquisition module further includes an accelerometer;

the accelerometer is used for acquiring an acceleration signal of the target user and sending the acceleration signal to the processor;

the processor is further configured to detect whether a cardiac event occurs in the target user based on the acceleration signal and the cardiac signal.

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

the processor is further configured to calculate a first heart rate from the cardiac electrical signal, calculate a second heart rate from the cardiac sound signal, and determine whether a cardiac event occurred in the target user based on the first heart rate and the second heart rate.

Optionally, the wearable cardiac defibrillator includes an electrocardiograph module and a sensing electrode; wherein the content of the first and second substances,

the electrocardio module is used for calculating a third heart rate of the target user according to the electrocardiosignals acquired by the sensing electrode and determining whether the target user has a cardiac event or not based on the third heart rate;

the wearable cardiac defibrillator is further used for performing defibrillation operation on the target user if the defibrillation instruction sent by the processor is received and the electrocardio module determines that the target user has a cardiac event.

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

Optionally, the system further comprises an external cardiac defibrillator, the external cardiac defibrillator comprising a second communication module and an indicator; wherein the content of the first and second substances,

the processor is further configured to send an event processing signal to the second communication module of the external cardiac defibrillator through the first communication module when the occurrence of the cardiac event of the target user is detected;

and the external cardiac defibrillator is used for controlling the indicator to play or display an alarm signal when receiving the event processing signal.

Optionally, the processor is further configured to send an event prompt signal to a terminal device of an associated user associated with the target user through the first communication module when the cardiac event of the target user is detected; alternatively, the first and second electrodes may be,

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

Optionally, the external cardiac defibrillator further comprises a microphone and a speaker; wherein, the first and the second end of the pipe are connected with each other,

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

the external cardiac defibrillator is further configured to control the speaker to play the voice signal received through the second communication module, 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.

Optionally, the second communication module includes a bluetooth communication unit and a network communication unit; wherein the content of the first and second substances,

the second communication module is further configured to obtain a current position of the associated user, send an event notification signal to a terminal device of the associated user through the bluetooth communication unit if a distance between the current position and the position of the in-vitro cardiac defibrillator does not exceed a preset distance threshold, and send the event notification signal to the terminal device through the network communication unit if the distance exceeds the preset distance threshold.

Optionally, the external cardiac defibrillator further includes an electrocardiogram module, wherein the external cardiac defibrillator is further configured to, when the event processing signal is received, execute a defibrillation operation on the target user if it is determined that the target user has a cardiac event according to the electrocardiogram module.

Optionally, the external cardiac defibrillator is further configured to display or play basic information of the external cardiac defibrillator when it is detected 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 an associated user associated with the target user through the second communication module, where the basic information includes a current device state, an electrode pad replacement cycle, a battery state, fault handling information, and contact information.

Optionally, the external cardiac defibrillator further comprises a defibrillation interactive learning module, a microphone, and a display interface, wherein,

the defibrillation interactive learning module is used for displaying interactive learning resources on a display interface, acquiring the simulation operation executed by a learning user on the display interface in response to the interactive learning resources and the simulation operation input on the microphone, and determining the interactive learning effect corresponding to the learning user based on the simulation operation.

Optionally, the external cardiac defibrillator further comprises an activation module, wherein,

the activation module is used for determining the resource content of the interactive learning resource and/or the time for displaying the interactive learning resource displayed by the defibrillation interactive learning module according to the interactive learning effect.

Optionally, the processor is further configured to send the heart failure indicator to the activation module;

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

Optionally, the defibrillation interactive learning module is further configured to acquire the learning user responds to the interactive learning resource is in the treatment preprocessing simulation operation, the treatment simulation operation and the emergency simulation operation executed on the display interface, and acquire the learning user responds to the interactive learning resource is in the artificial respiration simulation operation entered on the microphone, based on the treatment preprocessing simulation operation, the treatment simulation operation, the emergency simulation operation and the artificial respiration simulation operation determine the interactive learning effect corresponding to the learning user.

According to the heart failure monitoring system provided by the embodiment of the invention, at least one heart failure physiological signal of a target user is acquired according to the signal acquisition module, and the heart failure index of the target user is calculated according to the at least one heart failure physiological signal and the preset index calculation rule corresponding to each heart failure physiological signal through the processor, so that the heart failure state of the user is monitored, the heart failure degree of the user can be detected in real time, the technical problem that the heart failure disease deterioration of a patient cannot be found in time is solved, and the heart failure index can be used as auxiliary information for judging the disease state of the patient by a doctor, such as determining whether to adjust medicine or go to a hospital for diagnosis.

It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present invention, nor do they necessarily limit the scope of the invention. Other features of the present invention will become apparent from the following description.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1A is a schematic structural diagram of a heart failure monitoring system according to an embodiment of the present invention;

fig. 1B is a schematic diagram of an electrocardiograph monitoring unit according to an embodiment of the present invention;

FIG. 1C is a schematic diagram of a heart monitor according to an embodiment of the present invention;

fig. 2A is a schematic structural diagram of a heart failure monitoring system according to a second embodiment of the present invention;

fig. 2B is a schematic diagram of a wearable cardiac defibrillator provided by a second embodiment of the present invention;

fig. 2C is a schematic diagram of a process for determining a cardiac event based on a heart sound signal and a cardiac electrical signal according to a second embodiment of the present invention;

fig. 2D is a schematic diagram of a cardiac event determination process based on a wearable cardiac defibrillator and a cardiac monitor according to a second embodiment of the present invention;

fig. 3A is a schematic structural diagram of a heart failure monitoring system according to a third embodiment of the present invention;

fig. 3B is a schematic diagram of a process of sending an event processing signal according to a third embodiment of the present invention;

fig. 4A is a schematic structural diagram of a heart failure monitoring system according to a fourth embodiment of the present invention;

fig. 4B is a schematic diagram illustrating a process of determining an interactive learning effect according to a fourth embodiment of the present invention;

fig. 4C is a schematic diagram of a process of activating a user education mode by the external defibrillator according to the fourth embodiment of the present invention;

fig. 4D is a schematic diagram illustrating placement of an external defibrillator according to a fourth embodiment of the present invention;

fig. 4E is a schematic diagram of an external defibrillator and base provided by the fourth embodiment of the present invention;

fig. 4F is a schematic diagram of an interactive learning module according to a fourth embodiment of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in other sequences than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example one

Fig. 1A is a schematic structural diagram of a heart failure monitoring system according to an embodiment of the present invention, where 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; the signal acquisition module 101 is connected to the processor 102, and is configured to acquire at least one heart failure physiological signal of a target user and send the at least one heart failure physiological signal to the processor 102; and the processor 102 is configured to determine a heart failure indicator of the target user according to the received at least one heart failure physiological signal and a preset indicator calculation rule corresponding to the heart failure physiological signal.

Wherein, the heart failure physiological signal can be a physiological signal reflecting the condition of heart failure. Specifically, at the initial stage of the worsening of the heart failure state, the heart and the human body can release various signals, such as heart sound change, resting heart rate increase, lung rale, blood oxygen reduction, tachypnea, edema and change of sleep inclination angle; therefore, the heart failure physiological signals of the user, such as heart sound signals, electrocardio signals, lung sound signals, blood oxygen signals or respiratory signals, can be monitored.

Illustratively, 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 respiration monitoring unit, an impedance monitoring unit and a sleep inclination monitoring unit, wherein the heart sound monitoring unit is configured to acquire a heart sound signal of a target user; the electrocardio-monitoring unit is used for acquiring electrocardiosignals of a target user; the lung sound monitoring unit is used for acquiring a lung sound signal of a target user; the blood oxygen monitoring unit is used for acquiring a blood oxygen signal of a target user; the breathing monitoring unit is used for acquiring a breathing signal of a target user; the impedance monitoring unit is used for acquiring an impedance signal of a target user; and the sleep inclination angle monitoring unit is used for acquiring a sleep inclination angle signal of the target user.

Wherein the heart sound monitoring unit may 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 may be a lung sound sensor. The blood oxygen monitoring unit can be a blood oxygen sensor; for example, an optical sensor may be used to determine the oxygenation level of hemoglobin based on the difference between the amount of absorption of oxygenated hemoglobin and the amount of absorption of hemoglobin by different wavelengths of light, resulting in a blood oxygen signal. The respiration monitoring unit may be a respiration sensor. The impedance monitoring unit may be a bio-impedance sensor. The sleep tilt monitoring unit may be a sleep tilt sensor. Each monitoring unit may be implemented by a dedicated hardware module, a general-purpose hardware module, or a software module.

Specifically, the signal collecting module 101 may be a patch type collecting device, that is, the signal collecting module is attached to the body surface of the target user to collect the corresponding heart failure physiological signal. For example, if the signal acquisition module includes an electrocardiograph monitoring unit, the electrocardiograph monitoring unit may be a patch device, as shown in fig. 1B, which shows a schematic diagram of the electrocardiograph monitoring unit, and the electrocardiograph monitoring unit may be disposed on the chest skin surface of the user; the ecg monitoring unit can include a first electrode and a second electrode, which are connected to the processor 102 for transmitting the monitored ecg signals to the processor 102.

The signal acquisition module 101 may also be a wearable acquisition device, such as a ring, a bracelet, an arm ring, a head band, or a chest-abdomen band, which can be worn by a user. Of course, the signal acquisition module 101 may also be a patch type and wearable type combined signal acquisition device, that is, simultaneously including a body surface patch and a wearable device, and the types of the heart failure physiological signals that can be acquired as required are increased or decreased for each monitoring unit included in the signal acquisition module 101, or the monitoring units included in the signal acquisition module 101 may also be increased or decreased according to the wearing manner.

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 the wearable signal acquisition module 101 such as a head band or a chest-abdomen band, 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 realize long-term continuous monitoring on the target user, and the use of various sensors can provide more comprehensive clinical data, so that the heart failure state of the target user can be comprehensively evaluated conveniently.

Optionally, if the signal acquisition module 101 is a patch type acquisition device, the signal acquisition module 101 may 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 tilt angle monitoring unit.

Illustratively, as shown in fig. 1C, a schematic structural diagram of a heart monitor is shown, the heart monitor includes a processor 110, a heart sound monitoring unit 111, an electrocardiograph 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 tilt angle monitoring unit 117.

Further, after the signal acquisition module 101 acquires the at least one heart failure physiological signal of the target user, the signal acquisition module 101 may 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.

Specifically, the processor 102 may calculate the heart failure index of the target user according to a preset index rule corresponding to each heart failure physiological signal. The preset index calculation rule can be a preset rule for analyzing the heart failure physiological signal to determine the heart failure degree; the preset index calculation rules corresponding to different heart failure physiological signals are different.

For example, the preset index calculation rule corresponding to the heart sound signal may be to calculate a reference index corresponding to the heart sound signal according to a 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 electrocardiosignals can be used for calculating the reference index corresponding to the electrocardiosignals according to the difference value between the current heart rate and the preset stable heart rate in the electrocardiosignals. The preset index calculation rule corresponding to the lung sound signal may be to calculate a reference index corresponding to the lung sound signal according to whether lung rale is detected in the lung sound signal and the intensity of the lung rale. The preset index calculation rule corresponding to the blood oxygen signal may be to calculate a 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 respiration signal may be to calculate a reference index corresponding to the respiration signal according to the number of breaths in the respiration signal per unit time. The preset index calculation rule corresponding to the impedance signal may be to calculate a reference index corresponding to the impedance signal according to the bio-impedance in the impedance signal. The preset index calculation rule corresponding to the sleep inclination angle signal may be to calculate a reference index corresponding to the sleep inclination angle signal according to a sleep inclination angle variation value in the sleep inclination angle signal.

Optionally, the processor 102 is specifically configured to determine a signal reference index corresponding to the heart failure physiological signal according to the received at least one heart failure physiological signal and a 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 the at least one heart failure physiological signal and a preset weight corresponding to the heart failure physiological signal.

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, and further, the signal reference indexes are integrated to obtain the heart failure index through the preset weight corresponding to each heart failure physiological signal. The preset weight corresponding to each heart failure physiological signal can be determined according to the number of the monitored heart failure physiological signals and/or the importance degree of the heart failure physiological signals.

For example, if the heart failure physiological signals include heart sound signals, electrocardio signals, lung sound signals, blood oxygen signals, respiration signals, impedance signals and sleep inclination angle signals; the heart failure index is a heart sound signal + b electrocardiosignal + c lung sound signal + d blood oxygen signal + e respiration signal + f impedance signal + g sleep inclination angle signal.

And calculating a signal reference index corresponding to each heart failure physiological signal according to each heart failure physiological signal and a preset index calculation rule corresponding to each heart failure physiological signal, and further calculating a heart failure index integrating each signal reference index according to a preset weight corresponding to each heart failure physiological signal, so that the heart failure index is accurately determined.

For example, a process of calculating the signal reference index according to a preset index calculation rule will be described. That is, optionally, the processor 102 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 to exist in the heart sound signal, determining a signal reference index corresponding to the heart sound signal based on the strength of the third heart sound; if the electrocardiosignals are received, determining the actual heart rate corresponding to the target user based on the electrocardiosignals, and determining the signal reference index corresponding to the electrocardiosignals based on the actual heart rate and the preset stable heart rate; if the lung sound signal is received and whether a crackle signal exists in the lung sound signal is detected, determining a signal reference index corresponding to the lung sound signal based on the strength of the crackle signal; if the blood oxygen signal is received, determining a signal reference index corresponding to the blood oxygen signal based on the actual blood oxygen saturation in the blood oxygen signal and a preset reference saturation; if the breathing signal is received, determining a signal reference index corresponding to the breathing signal based on the current breathing frequency and the historical breathing frequency corresponding to the breathing signal; if the bio-impedance signal is received, determining a signal reference index corresponding to the bio-impedance signal based on the current bio-impedance in the bio-impedance signal and a preset stable impedance; and if the sleep inclination angle signal is received, determining the average sleep inclination angle of the target user in the current preset time period based on the sleep inclination angle signal, and determining a signal reference index corresponding to the sleep inclination angle signal based on the average sleep inclination angle in the current preset time period and the average sleep inclination angle in the last preset time period.

Among heart sound signals, the third heart sound is 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 is, the stronger the third heart sound is, the left ventricular punching pressure of the patient with pulmonary edema is generally increased, and accordingly, the third heart sound of the patient with pulmonary edema is higher than the normal level. Therefore, the heart failure index of the target user may be calculated using the intensity variation trend of the third heart sound in the heart sound signal, the signal reference index corresponding to the heart sound signal may be calculated using the ratio of the intensity of the third heart sound to the intensity of the first heart sound in the heart sound signal, or the product of the intensity of the third heart sound and the intensity of the first heart sound, or the prediction model may be trained according to the previously acquired heart sound waveforms of different patients, the heart sound signal of the target user may be input to the prediction model to obtain the prediction waveform output by the prediction model, and the signal reference index corresponding to the heart sound signal may be calculated according to the prediction waveform. For example, if the ratio of the intensity of the third heart sound to the intensity of the first heart sound reaches 5%, one score is added to the signal reference index corresponding to the heart sound signal.

The cardiac electrical signal may include 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 of the target user when the condition of the target user is stable may be set as the preset stable heart rate, or the average heart rate of the target user over the historical period of time may be set as the preset stable heart rate. Determining a signal reference index corresponding to the electrocardiosignal according to a difference value between an actual heart rate in the electrocardiosignal and a preset stable heart rate; if the difference value between the actual heart rate and the preset stable heart rate reaches 10 times, one minute is accumulated in the signal reference index corresponding to the electrocardiosignal. Or, a heart rate recovery event of the target user can be obtained according to the electrocardiosignals, the heart rate recovery event can be a process that the target user recovers from a high heart rate to a low heart rate, and signal reference indexes corresponding to the electrocardiosignals are calculated according to the duration of recovering to the base heart rate in the heart rate recovery event and/or the difference between the base heart rate and a preset stable heart rate.

Considering that the worsening of the heart failure may cause pulmonary edema, when a rale signal is detected to be present in the lung sound signal, a signal reference index corresponding to the lung sound signal may be calculated according to the intensity of the rale signal.

Considering that the blood supply capacity of the heart is reduced when a patient suffers from heart failure, and pulmonary edema caused by the heart failure causes the reduction of the gas exchange capacity of alveoli and blood vessels to jointly cause the reduction of the blood oxygen saturation, the blood pressure saturation can indicate the heart failure degree of the patient by using a specific value or range, for example, the heart is considered to be normal when the arterial blood oxygen saturation is higher than 94% -98%, otherwise, the possibility of the heart failure is considered to exist. Therefore, the preset reference saturation may be set to any value of 94% -98%, such as 94%. And calculating a signal reference index corresponding to the blood oxygen signal according to the difference value of the actual blood oxygen saturation and the preset reference saturation time. For example, every 2% of the difference between the actual blood oxygen saturation and the preset reference saturation time is added to the signal reference index corresponding to the blood oxygen signal.

It is considered that the number of breaths per unit time of a heart failure patient increases as the severity of the heart failure increases. Therefore, the current respiratory frequency of the target user can be determined from the respiratory signal, and the signal reference index corresponding to the respiratory signal is calculated according to the difference between the current respiratory frequency and the historical respiratory frequency. Illustratively, every time the difference between the respiratory rate and the historical respiratory rate reaches 10%, one score is added in the signal reference index corresponding to the respiratory signal; or accumulating one minute in the signal reference index corresponding to the respiratory signal every time the difference between the respiratory frequency and the historical respiratory frequency reaches 6 times/minute. Wherein the historical respiratory rate may be an average respiratory rate of the target user over a historical period of time.

Considering that one of the clinical manifestations of heart failure is edema, the patient's bio-impedance is gradually decreased during the formation of edema, so that the degree of edema of the patient and thus the degree of heart failure can be determined according to the change of bio-impedance. Specifically, the current bioimpedance of the target user can be measured in real time through an optivol method, namely, the castration impedance is measured in a pulse emitting mode, and then a signal reference index corresponding to the bioimpedance signal is calculated through the difference between the current bioimpedance and the preset stable impedance. For example, when the current bio-impedance is reduced by 5% compared with the preset stable impedance, one minute is added in the signal reference index corresponding to the bio-impedance signal. Wherein the preset plateau impedance may be a baseline bioimpedance at which the target user's condition is stable.

Another manifestation in which heart failure is considered is an increase in sleep dip. Therefore, the average sleep inclination angle of the target user in the current preset time period can be calculated, and the signal reference index corresponding to the sleep inclination angle signal is calculated according to the difference value between the average sleep inclination angle in the current preset time period and the average sleep inclination angle in the last preset time period. For example, when the average sleep inclination angle in the current preset time period is increased by 5 degrees compared with the average sleep inclination angle in the previous preset time period, one time is added in the signal reference index corresponding to the sleep inclination angle signal. The current preset time period may be a preset fixed sleep time period, such as 0-6 points, or may also be a sleep time period measured in real time by an accelerometer. The average sleep tilt angle in the last preset period may be the average sleep tilt angle in the sleep period of the previous day, or the average sleep tilt angle in the sleep period of the previous week, etc.

In the above example, accurate calculation of signal reference indexes corresponding to various heart failure physiological signals is realized, and then a heart failure index capable of accurately representing the heart failure state of the target user is obtained.

Further, after obtaining the heart failure index of the target user, the actual heart failure degree corresponding to the target user may be determined according to each preset index range and the heart failure degree corresponding to each index range. If the actual heart failure degree reaches the preset alarm degree, prompt information can be sent to the terminal equipment of the doctor related to the target user. Or, when the actual heart failure degree reaches a preset alarm degree, sending a diagnosis prompt message to the terminal device of the target user. Or, when the actual heart failure degree reaches the preset alarm degree, the external cardiac defibrillator can be controlled to be in a standby state, so that the target user can be defibrillated through the external cardiac defibrillator in time.

The heart failure monitoring system provided by the embodiment collects at least one type of heart failure physiological signal of a target user according to the signal collection module, calculates the heart failure index of the target user according to the preset index calculation rule corresponding to the at least one type of heart failure physiological signal and each type of heart failure physiological signal through the processor, realizes monitoring of the heart failure state of the user, can detect the heart failure degree of the user in real time, solves the technical problem that the condition deterioration of the heart failure of the patient cannot be found in time, and can also be used as auxiliary information for judging the condition of the patient by a doctor, such as determining whether to adjust medication or go to a hospital for diagnosis.

Example two

Fig. 2A is a schematic structural diagram of a heart failure monitoring system according to a second embodiment of the present invention, and the present embodiment further includes a wearable cardiac defibrillator based on the above embodiments. As shown in fig. 2A, the heart failure monitoring system provided in this embodiment includes a heart monitor 20 and a wearable cardiac defibrillator 21, where the heart monitor 20 includes a signal acquisition module 201, a processor 202, and a first communication module 203, and the signal acquisition module 201 includes at least an electrocardiographic monitoring unit 2010.

The processor 202 is further configured to detect whether a cardiac event occurs in the target user according to the electrocardiographic signal, and if so, send a defibrillation instruction to the wearable cardiac defibrillator 21 through the first communication module 203; the wearable cardiac defibrillator 21 is configured to perform defibrillation operation on the target user according to the defibrillation instruction, and feed back a defibrillation completion signal to the processor 202 after the defibrillation operation is completed.

Specifically, the processor 202 may determine whether a cardiac event occurs in the target user according to the electrocardiographic signal acquired by the electrocardiographic monitoring unit 2010 in the signal acquisition module 201; the cardiac event may be ventricular fibrillation or malignant arrhythmia, among others. For example, the processor 202 may detect whether a cardiac event occurs in the target user according to a probabilistic counting method and the cardiac electrical signal, that is, may determine a ratio of heartbeats in the cardiac electrical signal falling within the ventricular rate/ventricular fibrillation zone, and determine whether the cardiac event occurs in the target user based on the ratio. For example, if 18 beats of heart rate falling within the ventricular rate/ventricular fibrillation zone is detected in 24 beats of electrocardiosignals, it can be determined that a cardiac event occurs in the target user and a shock needs to be applied to the target user.

In this embodiment, processor 202 may send defibrillation instructions to wearable cardiac defibrillator 21 through first communication module 203 when detecting that a cardiac event occurs in the target user; after receiving the defibrillation instruction, the wearable cardiac defibrillator 21 performs defibrillation operation on the target user through the defibrillation electrode, and feeds back a defibrillation completion signal to the processor 202 after the defibrillation operation is completed. Further, after receiving the defibrillation completion signal, the processor 202 may continue to determine whether the target user still has a cardiac event according to the electrocardiographic signal, and if so, the processor 202 may continue to send a defibrillation instruction to the wearable cardiac defibrillator-wearable cardiac defibrillator 21.

Generally speaking, when a cardiac event occurs in a target user, the target user may be defibrillated six times in the above manner, that is, the processor 202 may detect the number of times that the wearable cardiac defibrillator 21 completes defibrillation operation, and if the cardiac event still exists in the target user after six times of defibrillation, the defibrillation operation may be stopped, and the processor 202 may send an alarm message to a terminal of a doctor or dial a preset alarm number through the first communication module 203.

Illustratively, as shown in fig. 2B, a schematic diagram of a wearable cardiac defibrillator is presented. The wearable cardiac defibrillator 21 at least comprises a first defibrillation electrode and a second defibrillation electrode, and a defibrillation vector can be formed between the first defibrillation electrode and the second defibrillation electrode, and the defibrillation vector can cover cardiac tissues of a target user so as to perform defibrillation operation on the target user.

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

That is, when detecting that a cardiac event occurs to the target user, the processor 202 may determine an event degree corresponding to the cardiac event, and further send a defibrillation instruction including the event degree to the wearable cardiac defibrillator 21, and the wearable cardiac defibrillator 21 determines corresponding defibrillation energy according to the event degree, and performs defibrillation on the target user through the defibrillation energy. By the method, defibrillation energy can be accurately determined according to the event degree of the target user when a cardiac event occurs, so that defibrillation operation of the wearable cardiac defibrillator can better meet actual requirements of patients.

In this embodiment, the processor 202 may directly determine whether a cardiac event is present based on the cardiac electrical signal. In addition, in order to prevent the cardiac event from being misjudged due to the interference of the electrocardiographic signal, an accelerometer may be disposed in the signal acquisition module 201, and the cardiac event may be verified through the acceleration of the target user acquired by the accelerometer.

That is, optionally, the signal acquisition module 201 further includes an accelerometer; the accelerometer is used for acquiring an acceleration signal of a target user and sending the acceleration signal to the processor 202; the processor 202 is further configured to detect whether a cardiac event occurs in the target user based on the acceleration signal and the cardiac signal.

Specifically, the processor 202 may determine whether the target user falls down according to the acceleration signal, and if so, further determine whether a cardiac event exists according to the cardiac electrical signal. Alternatively, the processor 202 may first determine whether a cardiac event may exist according to the electrocardiographic signal, if so, further determine whether the target user falls down according to the acceleration signal, and if so, determine that the target user has a cardiac event. By the method, the cardiac events are verified, and the situation that the cardiac events are misjudged due to interference of electrocardiosignals is avoided.

In this embodiment, in addition to verifying the cardiac event based on the acceleration signal, a heart sound monitoring unit may be disposed in the signal acquisition module 201, and whether the target user has the cardiac event or not may be verified in a bidirectional manner through the heart sound signal acquired by the heart sound monitoring unit and the electrocardiographic signal acquired by the electrocardiographic monitoring unit.

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 from the cardiac electrical signal, calculate a second heart rate from the cardiac sound signal, and determine whether a cardiac event occurs in the target user based on the first heart rate and the second heart rate.

Specifically, whether the ratio of heartbeats falling into the ventricular rate/ventricular fibrillation zone range in the first heart rate of the electrocardiosignal is larger than the preset zone ratio or not can be judged, if yes, it is indicated that the target user may have a heart event, further, whether the difference value between the first heart rate and the second heart rate is smaller than a set difference value or not can be judged, and if yes, it can be determined that the first heart rate is reliable and the target user has a heart event. Or, whether the difference between the first heart rate and the second heart rate is smaller than a set difference or not can be judged, if yes, when the proportion of heartbeats falling into the ventricular rate/ventricular fibrillation zone range in the first heart rate of the electrocardiosignal is judged to be larger than the preset zone proportion, or the proportion of heartbeats falling into the ventricular rate/ventricular fibrillation zone range in the second heart rate of the electrocardiosignal is judged to be larger than the preset zone proportion, the target user is determined to have the cardiac event. By the method, the cardiac event is determined based on the cardiac sound signal and the electrocardiosignal, and the situation that the cardiac event is misjudged due to interference of the electrocardiosignal is avoided.

Illustratively, as shown in fig. 2C, a schematic diagram of a process for determining a cardiac event based on a heart sound signal and a heart electrical signal is shown. Specifically, a first heart rate is calculated according to the electrocardio signals, a second heart rate is calculated according to the heart sound signals, whether ventricular fibrillation occurs in the first heart rate is judged, if yes, whether ventricular fibrillation occurs in the second heart rate is continuously judged, if the ventricular fibrillation also occurs in the second heart rate, an alarm signal is sent out, whether the alarm signal is cancelled is judged, if not, defibrillation operation is executed, and if yes, the electrocardio signals and the heart rate signals are continuously monitored. And if the first heart rate or the second heart rate does not generate ventricular fibrillation, returning to continuously monitor the electrocardiosignals and the heart rate signals. The process may be performed by the processor 202 in the heart monitor.

In another alternative embodiment, wearable cardiac defibrillator 21 includes an electrocardiogram module and a sensing electrode; the electrocardio module is used for calculating a third heart rate of the target user according to electrocardiosignals acquired by the sensing electrode and determining whether the target user has a cardiac event or not based on the third heart rate; the wearable cardiac defibrillator 21 is further configured to perform defibrillation operation on the target user if the defibrillation instruction sent by the processor 202 is received and the electrocardiograph module determines that the target user has a cardiac event. The sensing electrode may be a common electrode with the defibrillation electrode or an independent electrode.

That is, whether a cardiac event occurs in the target user can be verified through the electrocardiograph module and the sensing electrode inside the wearable cardiac defibrillator 21. Specifically, the electrocardiogram module of the wearable cardiac defibrillator 21 may calculate the third heart rate for the electrocardiogram signals collected by the sensing electrodes. If the processor 202 sends the defibrillation instruction, it indicates that the processor 202 determines that the cardiac event occurs according to the electrocardiographic signal of the electrocardiographic monitoring unit, or the processor 202 determines that the cardiac time occurs according to the electrocardiographic signal of the electrocardiographic monitoring unit and the cardiac signal of the cardiac sound monitoring unit, at this time, the electrocardiographic module of the wearable cardiac defibrillator 21 may determine whether the cardiac event occurs according to the third heart rate, and if the electrocardiographic module also determines that the cardiac event occurs, the wearable cardiac defibrillator 21 may perform defibrillation on the target user. By the method, further verification of the cardiac event is realized, and the situation that the cardiac event is misjudged due to interference of the electrocardiosignal is avoided.

Illustratively, as shown in fig. 2D, a schematic diagram of a cardiac event determination process based on a wearable cardiac defibrillator and a cardiac monitor is shown. The heart monitor collects electrocardiosignals and heart sound signals respectively through an electrocardio monitoring unit and a heart sound monitoring unit inside the heart monitor, calculates a first heart rate and a second heart rate respectively according to the electrocardiosignals and the heart sound signals, and sends a judgment result of whether ventricular fibrillation occurs to the wearable heart defibrillator according to the first heart rate and the second heart rate. The wearable cardiac defibrillator collects electrocardiosignals according to the sensing electrode, calculates a third heart rate according to the electrocardiosignals, judges whether ventricular fibrillation occurs in the third heart rate, determines whether ventricular fibrillation occurs according to a judgment result sent by the cardiac monitor if the ventricular fibrillation occurs in the third heart rate, controls to send an alarm signal if the ventricular fibrillation occurs in the third heart rate, judges whether the alarm signal is cancelled, executes defibrillation operation if the ventricular fibrillation does not occur, and returns to continue monitoring the electrocardiosignals and the heart rate signals if the ventricular fibrillation occurs. And if the third heart rate does not have ventricular fibrillation or the judgment result sent by the heart monitor indicates that the ventricular fibrillation does not occur, returning to continuously monitor the electrocardiosignals.

In the heart failure monitoring system provided in this embodiment, the processor may further determine whether the target user has a cardiac event according to the electrocardiographic signal detected by the electrocardiographic monitoring unit in the signal acquisition module, and send a defibrillation instruction to the wearable cardiac defibrillator in the system when the target user has the cardiac event, so that the wearable cardiac defibrillator performs defibrillation operation on the target user when the target user has the cardiac event, thereby monitoring the cardiac event of the user is achieved, and the wearable cardiac defibrillator performs defibrillation on the user to perform first aid on the user when the user has the cardiac event.

EXAMPLE III

Fig. 3A is a schematic structural diagram of a heart failure monitoring system according to a third embodiment of the present invention, and the present embodiment further includes an external cardiac defibrillator based on the above embodiments. As shown in fig. 3A, the heart failure monitoring system provided in this embodiment includes a heart monitor 30, a wearable cardiac defibrillator 31, and an external cardiac defibrillator 32, where the heart monitor 30 includes a signal acquisition module 301, a processor 302, and a first communication module 303, and the signal acquisition module 301 at least includes an electrocardiograph monitoring unit 3010; the external cardiac defibrillator 32 includes a second communication module 320 and an indicator 321.

Wherein, the processor 302 is further configured to send an event processing signal to the second communication module 320 of the external defibrillator 32 through the first communication module 303 when detecting that the cardiac event occurs in the target user; the external defibrillator 32 is configured to control the indicator 321 to play or display an alarm signal when receiving the event processing signal.

In this embodiment, the processor 302 may further transmit an event processing signal to the second communication module 320 in the external defibrillator 32 through the first communication module 303 when detecting the occurrence of a cardiac event by the target user. Further, the external defibrillator 32 may 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; indicator 321 is in the form of a voice-playing device, such as a speaker. The external defibrillator 32 can control the indicator 321 to play an alarm signal.

It should be noted that the purpose of the external cardiac defibrillator 32 controlling the indicator 321 to play or display the alarm signal is to: by playing or displaying the alarm signal, the target user or the family of the target user can be reminded of the existence of the cardiac event in time, and the target user needs to be subjected to emergency treatment in time.

In this embodiment, in addition to the external defibrillator 32 controlling the display or playback of the alarm signal, a prompt message may be sent to the family of the target user or to a physician. For example, the processor 302 is further configured to, upon detecting that a cardiac event occurs in the target user, send an event prompt signal to a terminal device of an associated user associated with the target user through the first communication module 303; alternatively, the external defibrillator 32 is further configured to send an event prompt signal to the terminal device of the associated user via the second communication module 320 upon receiving the event processing signal.

The associated users associated with the target user include, but are not limited to, family members of the target user and a doctor in charge of the target user. In particular, the processor 302 may send an event alert signal to a terminal device of an associated user via the first communication module 303 when a cardiac event is detected. Alternatively, the processor 302 sends an event prompt signal to the external defibrillator 32 when detecting the cardiac event, and further, the external defibrillator 32 sends the 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, an electronic device with a communication function, such as a mobile phone, a computer, a smart watch, a tablet computer, or the like, and the event prompt signal may be presented in the form of a short message, a telephone call, a voice, a mail, a WeChat message, or the like.

By the method, when a cardiac event occurs to a target user, a prompt signal is sent to family members or doctors in charge of the target user through the processor or the external cardiac defibrillator, so that the family members or doctors in charge of the target user are reminded that the target user has the cardiac event and needs to be subjected to emergency treatment in time.

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

That is, the second communication module 320 of the external defibrillator 32 may select the bluetooth communication unit or the network communication unit to transmit the event notification signal according to the current location of the associated user. Specifically, the bluetooth communication unit may be selected to send the event prompt signal to the terminal device of the associated user when the distance between the current location of the associated user and the location of the external cardiac defibrillator 32 does not exceed the preset distance threshold, and the network communication unit may be selected to send the event prompt signal to the terminal device when the distance between the two events exceeds the preset distance threshold.

In this alternative embodiment, whether the associated user is in a home state or an out-of-home state may be determined by the distance between the current location of the associated user and the location of the external cardiac defibrillator 32, and when the associated user is in the home state, a signal is transmitted through the bluetooth communication unit; when the associated user is in an outgoing state, the network communication unit sends a signal, so that the associated user can receive an event prompt signal indicating that the target user has a cardiac event, and the target user is timely rescued.

Of course, the external cardiac defibrillator 32 may also send the 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 the method, the prompt signal can be sent to the terminal equipment of the associated user through the approach signal, and then a communication redundancy scheme is formed through the network communication unit and the cloud end, so that the associated user can be further ensured to receive the event prompt signal, and the target user can be further ensured to be rescued in time after a cardiac event occurs.

Of course, the external cardiac defibrillator 32 may also perform defibrillation operation on the target user when the event processing signal is received and it is detected that the external cardiac defibrillator is worn by the target user. Optionally, the external cardiac defibrillator 32 further includes an electrocardiogram module, where the external cardiac defibrillator 32 is further configured to, when the event processing signal is received, execute a defibrillation operation on the target user if it is determined that the target user has a cardiac event according to the electrocardiogram module. That is, the external defibrillator 32 can verify the cardiac event determined by the processor 302 through the internal ecg module thereof, so as to avoid erroneous judgment of the cardiac event due to interference of the ecg signal.

Optionally, the external cardiac defibrillator 32 further comprises a microphone and a speaker; the second communication module 320 is further configured to receive a voice signal sent by the terminal device of the associated user, and send the voice signal to the terminal device of the associated user; the external defibrillator 32 is further configured to control the speaker to play the voice signal received through the second communication module 320, and 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.

Specifically, the external defibrillator 32 may control the speaker to play a voice signal transmitted by the associated user, and transmit the microphone-collected voice signal to the terminal device of the associated user. By the method, the question and answer between the associated doctor and the target user, or the question and answer between the associated doctor and the family of the target user, or the question and answer between the target user and the family can be realized, so that the family of the target user is informed to timely rescue the target user, or the family of the target user is guided to rescue the target user.

Certainly, 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 indicates that the target user is not treated within the set time, or the target user has a malignant arrhythmia event and cannot answer the event, at this time, the terminal device of the associated user may call the terminal device of another associated user through the telephone network, or automatically dial a preset emergency call.

Illustratively, referring to fig. 3B, a schematic diagram of a process of transmitting an event processing signal is shown. The heart monitor can send an event prompt signal to the external heart defibrillator after detecting the heart event, and send the event prompt signal to the terminal equipment of the associated user through the first communication module. After the external cardiac defibrillator receives the event prompt signal, the external cardiac defibrillator can send the event prompt signal to the cloud end through the second communication module, and the cloud end sends a calling message to the external cardiac defibrillator based on the received event prompt signal. The external cardiac defibrillator can also send a treatment event signal to the cloud after a treatment event is generated, and the cloud initiates a calling message to the terminal equipment of the associated user according to the treatment event signal.

In the heart failure monitoring system provided by this embodiment, when the processor detects that the target user has a cardiac event, the processor sends an event processing signal to the second communication module of the external cardiac defibrillator through the first communication module, and then the external cardiac defibrillator can control the indicator to play or display an alarm signal, so that the target user is reminded of the cardiac event, and the family members of the user are prompted to defibrillate the user in time.

Example four

Fig. 4A is a schematic structural diagram of a heart failure monitoring system according to a fourth embodiment of the present invention, and on the basis of the foregoing embodiments, the external cardiac defibrillator further includes a defibrillation interactive learning module, a microphone, and a display interface. As shown in fig. 4A, the heart failure monitoring system provided in this embodiment includes a heart monitor 40, a wearable cardiac defibrillator 41, and an external cardiac defibrillator 42, where the heart monitor 40 includes a signal acquisition module 401, a processor 402, and a first communication module 403, and the signal acquisition module 401 at least includes an electrocardiograph monitoring unit 4010; the external cardiac defibrillator 42 includes a second communication module 420, an indicator 421, a defibrillation cross-learning module 422, a microphone 423, and a display interface 424.

The defibrillation interactive learning module 422 is configured to display the interactive learning resources on the display interface, obtain a simulation operation executed by the learning user on the display interface 424 in response to the interactive learning resources and a simulation operation entered on the microphone 423, and determine an interactive learning effect corresponding to the learning user based on the simulation operation.

In this embodiment, the defibrillation interactive learning module 422 may control the display interface 424 to display the interactive learning resource through its internal processing unit, wherein the interactive learning resource may be an animation simulating the emergency treatment process. Specifically, in the process of displaying the interactive learning resources, the learning user may execute the simulation operation of the simulation treatment process on the display interface 424 or enter the simulation operation of the simulation treatment process on the microphone 423 according to the content of the interactive learning resources. Such as simulating removal of patient clothing, simulating attachment of electrodes at the location of defibrillation of the patient, or simulating cardiac massage, as performed on the display interface 424, or simulating artificial respiration, as entered on the microphone 423.

Further, the defibrillation interactive learning module 422 may determine the corresponding interactive learning effect of the learning user according to the acquired simulation operation performed by the learning user on the display interface 424 in response to the interactive learning resource and the simulation operation entered on the microphone 423. Specifically, the defibrillation interactive learning module 422 may determine an interactive learning score corresponding to each simulation operation according to the operation content, the operation time, and the operation duration of each simulation operation, and further determine an interactive learning effect corresponding to the learning user based on the interactive learning score corresponding to each simulation operation.

Illustratively, the defibrillation interactive learning module 422 is further configured to obtain a therapy preprocessing simulation operation, a therapy simulation operation, and an emergency simulation operation performed by the learning user on the display interface 424 in response to the interactive learning resource, and obtain a respiration simulation operation entered by the learning user on the microphone 423 in response to the interactive learning resource, and determine a corresponding interactive learning effect of the learning user based on the therapy preprocessing simulation operation, the therapy simulation operation, the emergency simulation operation, and the respiration simulation operation.

The treatment pretreatment simulation operation comprises but is not limited to simulating clothes removal and simulating stick electrodes, the treatment simulation operation can be simulating automatic diagnosis and simulating defibrillation, the emergency simulation operation can be simulating cardiac massage, and the artificial respiration simulation operation can be simulating artificial respiration. The defibrillation interactive learning module 422 may display the interactive learning resources for guiding the simulation operations on the display interface 424, and may play a prompt voice for guiding the simulation operations through the microphone 423.

Specifically, the interactive learning score corresponding to the simulated clothes removal operation can be determined according to the position of the clothes removed by the learning user in the simulated clothes removal operation and the preset position of the clothes, and the interactive learning score corresponding to the simulated clothes removal operation can be determined according to the time point of removing the clothes in the simulated clothes removal operation and the time length of removing the clothes. The interactive learning score corresponding to the simulated sticking discharge electrode operation can be determined according to the position of the simulated sticking discharge electrode of the learning user in the simulated sticking discharge electrode operation and the preset electrode position, and the interactive learning score corresponding to the simulated sticking discharge electrode operation can be determined according to the time length of sticking the discharge electrode in the simulated sticking discharge electrode operation and the time point of sticking the discharge electrode.

Of course, the interactive learning score corresponding to the simulated automatic diagnosis operation can be determined according to the time point and the time length of the simulated automatic diagnosis operation. Or determining the interactive learning score corresponding to the simulated defibrillation operation according to whether the learning user is far away from the defibrillation subject in the simulated defibrillation operation. In the embodiment, the interactive learning score corresponding to the artificial respiration simulation operation can be determined according to the simulation action and the simulation duration in the artificial respiration simulation operation; and determining the interactive learning score corresponding to the emergency simulation operation according to the rhythm and time of the heart massaged by the learning user in the emergency simulation operation.

Further, the defibrillation interactive learning module 422 may determine an interactive learning effect corresponding to the learning user according to the interactive learning score corresponding to each simulation operation. If so, performing weighted calculation on the interactive learning scores corresponding to the simulation operations according to the preset weights corresponding to the simulation operations, and determining the interactive learning effect corresponding to the learning user. The interactive learning effect may be in the form of a score, or may be in the form of a grade, such as low grade, medium grade, high grade, etc. By the method, the accurate evaluation of the simulation treatment learning process of the learning user is realized, and certainly, the defibrillation interactive learning module 422 can also show the interactive learning effect of the learning user on the display interface 424, or show the interactive learning scores corresponding to each simulation operation of the learning user respectively, so that the learning user can clearly learn the learning results of each simulation operation.

In this embodiment, the defibrillation interactive learning module 422 may further display the learning suggestion on the display interface 424 according to the interactive learning effect of the learning user after completing various simulation operations of the learning user, for example, the learning suggestion may include a simulation operation with an interactive learning score lower than a preset value. The defibrillation interactive learning module 422 may also simulate the defibrillation subject to wake up after the learning user completes the simulation operation, and display information for reminding the learning user to send the defibrillation subject to the hospital on the display interface 424.

It should be noted that the simulation operations performed by the learning user in response to the interactive learning resources may be entered on the display interface 424 or the microphone 423 of the external defibrillator 42, or may be entered on the learning user's terminal device.

For example, as shown in fig. 4B, a schematic diagram of a determination process of an interactive learning effect is shown, first, an interactive learning resource is shown, then a simulated defibrillation operation performed by a learning user is obtained, a simulated chest pressing operation performed by the learning user by clicking a screen or a key is obtained, a simulated artificial respiration operation performed by the learning user by blowing air into a microphone is obtained, whether a rescue object wakes up is judged according to the simulated operation, if not, the simulated defibrillation operation performed by the learning user is continuously returned to be obtained, and if yes, the interactive learning is ended, and the interactive learning effect of the learning user is determined.

In this embodiment, the interactive learning effect of the learning user may be used to not only remind the learning result of the learning user, but also serve as an activation parameter to determine the content that the learning user needs to learn next time, or determine the time for the learning user to learn next time.

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

For example, the poorer the interactive learning effect is, the more resource contents of the interactive learning resources determined by the activation module are, the closer the time for displaying the interactive learning resources is to the current time, that is, the more contents of the learning user in the next learning is, the shorter the time interval of the next learning is.

Specifically, the activation module may activate the defibrillation interactive learning module 422 to display the content of the interactive learning resource at the determined content and time of the interactive learning resource.

Optionally, the processor 402 is further configured to send the heart failure indicator to the activation module; and the activation module is also used for determining the resource content and/or the time for displaying the interactive learning resource according to the interactive learning effect and the heart failure index. That is, the heart failure indicator generated by the processor 402 in the heart monitor 40 may also be used to determine the resource content of the interactive learning resource that the learning user next learns, or to determine the time at which the learning user next learns the interactive learning resource, or to determine the resource content and time of the next learning.

For example, if the heart failure index reflects a smaller degree of heart failure, the less resource content of the interactive learning resource may be displayed, for example, only an animation simulating emergency operation is displayed, or the interactive learning resource is only an animation guiding a simulated learning process. If the heart failure degree reflected by the heart failure index is larger, the display time of the interactive learning resource is closer to the current time, or the times of the simulated learning process included in the interactive learning resource are more, and the like. The resource content and/or learning time of the next interactive learning resource of the learning user is determined 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 condition of the target user and the historical learning condition of the learning user is realized, the personalized determination of the learning content and the learning time is further realized, and the learning content and the learning time of the learning user are ensured to be more in line with the requirements of the target user.

Illustratively, the heart failure index score is divided into a plurality of score intervals, and different user learning contents and/or learning time intervals are set for different score intervals. For example, a plurality of intervals may be preset, each interval corresponding to a different heart failure index score range, for example, the first interval corresponds to a heart failure index score range of 0% to 30%, the second interval corresponds to a heart failure index score range of 30% to 60%, and the third interval corresponds to a heart failure index score range of 60% to 100%. If the heart failure index score of the user is in a third interval, only displaying the animation simulating the emergency operation, and setting the learning time interval to be once per month; if the heart failure index score of the user is in the second interval, immediately performing interactive learning, wherein the interactive learning resource is only animation for guiding one-time simulation learning process; if the heart failure index score of the user is in the first interval, animation simulating emergency operation and animation learning simulating learning process for multiple times are performed daily.

Optionally, the activation module may further determine the interactive learning effect, the heart failure index, the time of the target user when the cardiac event occurs, the number of times of the target user when the cardiac event occurs, the time of the previous defibrillation operation for the target user, and the away time ratio of the associated user 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 the parameters. For example, a decision tree may be set in the activation module, where the decision condition of the decision tree is the above 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.

According to the heart failure monitoring system provided by the embodiment, the simulation operation of the learning user is obtained through the defibrillation interactive learning module arranged in the external cardiac defibrillator, and the interactive learning effect of the learning user is determined according to the simulation operation, so that the evaluation on the learning process of the learning user is realized, and the learning user can clearly know the learning effect conveniently.

Optionally, the external defibrillator of the present embodiment may also be used to educate a target user or an associated user. Such as the external defibrillator 42, is further configured to display or play basic information of the external defibrillator when it is detected 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 a current state of the device, a replacement cycle of the electrode pads, a state of the battery, fault handling information, and contact information.

Wherein the external cardiac defibrillator 42 may activate the user education mode upon detecting that it is in the on-hook state. By starting the user education mode, basic information of the device is presented or played, or the basic information of the device is transmitted to the terminal device of the target user or the associated user through the second communication module 420. Of course, the external cardiac defibrillator 42 may also play a tutorial for emergency procedures, or a description of critical emergency actions, through the display interface 424 upon detecting that the user education mode is activated. Illustratively, as shown in fig. 4C, a schematic diagram of a process of starting the user education mode of the external defibrillator is shown, when the external defibrillator is in a hanging state and the external power supply is normal, the user education mode is activated, and corresponding basic information or education animation is shown.

For example, referring to fig. 4D, fig. 4D shows a schematic placement diagram of an external defibrillator, wherein the external defibrillator can be hung on a wall surface through an adapter. The base not only has the effect of holding the external cardiac defibrillator, but also can be internally provided with a charging circuit, and is connected with a 220V power supply through the charging circuit to supply power to the external cardiac defibrillator for a long time.

Referring to fig. 4E, fig. 4E shows a schematic diagram of an external cardiac defibrillator and a base, where the base includes an output structure and a power management device, the power management device converts a 220V voltage into a current for charging the external cardiac defibrillator, and is connected to a charging input interface of the external cardiac defibrillator through an output interface, and the AED uses an internal power management unit to perform charging management on a battery. The external cardiac defibrillator can be obtained in a long-term store through the base, and can keep a long-term activation state, so that the external cardiac defibrillator supports the normalized screen starting to carry out interactive education on a learning user.

In fig. 4E, the external cardiac defibrillator includes an indicator, which may be an indicator light or an audible alarm, etc. The external cardiac defibrillator also comprises a sensing module, a control Unit (MCU), a switch circuit, a battery, a treatment module, a screen, a second communication module and an interactive learning module. The communication module can communicate with terminal equipment of a target user, terminal equipment of a related user and a cloud end in modes of WIFI, Bluetooth, 5G, approach communication and the like. The sensing module can acquire electrocardiosignals of a target user; the interactive learning module can display interactive learning resources for a learning user by utilizing equipment such as a screen or an indicator and the like, and determine the interactive learning effect of the learning user.

It should be noted that the interactive learning module can be used not only to guide the rescuer to perform a rescue operation when a cardiac event occurs in the target user, but also to provide learning guidance to the learning user when the external defibrillator is placed on the base. Exemplarily, as shown in fig. 4F, a schematic diagram of an interactive learning module is shown, where the interactive learning module includes a content module, a scoring module, an activation module, a feedback input module, a control module, and a timer, where the control module is configured to obtain a simulation operation of a learning user collected by the feedback input module during a process of displaying an interactive learning resource, and the scoring module is configured to determine an interactive learning effect of the learning user according to the simulation operation. The interactive learning effect can be used as a parameter to be input into the activation module, and the activation module uses the parameter as a condition parameter for activating the interactive learning module to display the resource content and the display time of the interactive learning resource next time. The timer is used for timely carrying out an interactive learning process and timely carrying out simulation operation time on a learning user. The timer may also provide a timed time to the activation module. The activation module can automatically start the learning process of the interactive learning resources according to the judgment condition for activating the interactive learning resources for next learning of the learning user by various parameters, and strengthen the emergency treatment capability of the family members of the patient through interactive learning, so as to avoid confusion of the family members when the patient suffers from malignant arrhythmia.

The above-described embodiments should not be construed as limiting the scope of the invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (19)

1. A heart failure monitoring system comprising a heart monitor, the heart monitor comprising a signal acquisition module and a processor; wherein the content of the first and second substances,

the signal acquisition module is connected with the processor and used for acquiring at least one heart failure physiological signal of a target user and sending the at least one heart failure physiological signal to the processor;

the processor is used for determining the heart failure index of the target user according to the received at least one heart failure physiological signal and a preset index calculation rule corresponding to the heart failure physiological signal.

2. The system of claim 1, wherein the signal acquisition module comprises 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 tilt angle monitoring unit,

the heart sound monitoring unit is used for acquiring a heart sound signal of a target user;

the electrocardio monitoring unit is used for acquiring electrocardiosignals of a target user;

the lung sound monitoring unit is used for acquiring a lung sound signal of a target user;

the blood oxygen monitoring unit is used for acquiring a blood oxygen signal of a target user;

the respiration monitoring unit is used for acquiring a respiration signal of a target user;

the impedance monitoring unit is used for acquiring an impedance signal of a target user;

the sleep inclination angle monitoring unit is used for acquiring a sleep inclination angle signal of a target user.

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

4. The system of claim 3, wherein the processor is further configured to perform at least one of:

if the heart sound signal is received and a third heart sound is detected to exist in the heart sound signal, determining a signal reference index corresponding to the heart sound signal based on the strength of the third heart sound;

if the electrocardiosignals are received, determining the actual heart rate corresponding to the target user based on the electrocardiosignals, and determining the signal reference index corresponding to the electrocardiosignals based on the actual heart rate and the preset stable heart rate;

if the lung sound signals are received and whether a rale signal exists in the lung sound signals is detected, determining a signal reference index corresponding to the lung sound signals based on the strength of the rale signal;

if the blood oxygen signal is received, determining a signal reference index corresponding to the blood oxygen signal based on the actual blood oxygen saturation in the blood oxygen signal and a preset reference saturation;

if the respiration signal is received, determining a 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 bio-impedance signal is received, determining a signal reference index corresponding to the bio-impedance signal based on the current bio-impedance in the bio-impedance signal and a preset stable impedance;

if the sleep inclination angle signal is received, determining an average sleep inclination angle of the target user in a current preset time period based on the sleep inclination angle signal, and determining a signal reference index corresponding to the sleep inclination angle signal based on the average sleep inclination angle in the current preset time period and the average sleep inclination angle in a last preset time period.

5. The system of claim 2, further comprising a wearable cardiac defibrillator, the cardiac monitor further comprising a first communication module, the signal acquisition module comprising at least the cardiac electrical monitoring unit;

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

the wearable cardiac defibrillator is used for performing defibrillation operation on the target user according to the defibrillation instruction and feeding back a defibrillation completion signal to the processor after the defibrillation operation is completed.

6. The system of claim 5, wherein the signal acquisition module further comprises an accelerometer;

the accelerometer is used for acquiring an acceleration signal of the target user and sending the acceleration signal to the processor;

the processor is further configured to detect whether a cardiac event occurs in the target user based on the acceleration signal and the cardiac signal.

7. The system of claim 5, wherein the signal acquisition module further comprises the heart sound monitoring unit;

the processor is further configured to calculate a first heart rate from the cardiac electrical signal, calculate a second heart rate from the cardiac sound signal, and determine whether a cardiac event occurred in the target user based on the first heart rate and the second heart rate.

8. The system of claim 7, wherein the wearable cardiac defibrillator comprises an electrocardiogram module and a sensing electrode; wherein the content of the first and second substances,

the electrocardio module is used for calculating a third heart rate of the target user according to the electrocardiosignals acquired by the sensing electrode and determining whether the target user has a cardiac event or not based on the third heart rate;

the wearable cardiac defibrillator is further used for performing defibrillation operation on the target user if the defibrillation instruction sent by the processor is received and the electrocardio module determines that the target user has a cardiac event.

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

10. The system of claim 5, further comprising an external cardiac defibrillator comprising a second communication module and an indicator; wherein the content of the first and second substances,

the processor is further configured to send an event processing signal to the second communication module of the external cardiac defibrillator through the first communication module when the occurrence of the cardiac event of the target user is detected;

and the external cardiac defibrillator is used for controlling the indicator to play or display an alarm signal when receiving the event processing signal.

11. The system of claim 10, wherein the processor is further configured to send an event prompt signal to a terminal device of an associated user associated with the target user through the first communication module upon detecting occurrence of a cardiac event by the target user; alternatively, the first and second electrodes may be,

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

12. The system of claim 11, wherein the external cardiac defibrillator further comprises a microphone and a speaker; wherein the content of the first and second substances,

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

the external cardiac defibrillator is further used for controlling the loudspeaker to play the voice signal received through the second communication module, controlling the microphone to collect the voice signal, and sending the voice signal to the terminal equipment of the associated user through the second communication module.

13. The system of claim 11, wherein the second communication module comprises a bluetooth communication unit and a network communication unit; wherein the content of the first and second substances,

the second communication module is further configured to obtain a current location of the associated user, send an event notification signal to the terminal device of the associated user through the bluetooth communication unit if a distance between the current location and the location of the external cardiac defibrillator does not exceed a preset distance threshold, and send the event notification signal to the terminal device through the network communication unit if the distance exceeds the preset distance threshold.

14. The system of claim 10, wherein the external defibrillator is further configured to perform defibrillation operations on the target user if it is determined that the target user has a cardiac event according to the ecg module upon receiving the event processing signal.

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

16. The system of claim 10, wherein the external cardiac defibrillator further comprises a defibrillation interactive learning module, a microphone, and a display interface, wherein,

the defibrillation interactive learning module is used for displaying interactive learning resources on a display interface, acquiring the simulation operation executed by a learning user on the display interface in response to the interactive learning resources and the simulation operation input on the microphone, and determining the interactive learning effect corresponding to the learning user based on the simulation operation.

17. The system of claim 16, wherein the external cardiac defibrillator further comprises an activation module, wherein,

the activation module is used for determining the resource content of the interactive learning resource and/or the time for displaying the interactive learning resource displayed by the defibrillation interactive learning module according to the interactive learning effect.

18. The system of claim 17, wherein the processor is further configured to send the heart failure indicator to the activation module;

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

19. The system of claim 16, wherein the defibrillation interactive learning module is further configured to obtain a treatment preprocessing simulation operation, a treatment simulation operation, and an emergency simulation operation performed by the learning user on the display interface in response to the interactive learning resource, and obtain a respiratory simulation operation entered by the learning user on the microphone in response to the interactive learning resource, and determine a corresponding interactive learning effect of the learning user based on the treatment preprocessing simulation operation, the treatment simulation operation, the emergency simulation operation, and the respiratory simulation operation.

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