Apparatus and method for controlling aed based on battery status

Abstract

The present invention relates to a battery status-based automatic defibrillator control device, wherein the battery status-based automatic defibrillator control device may include an inspection unit for checking the battery status of an automatic defibrillator, a judgment unit for determining a battery level based on the battery status, and a control unit for selectively controlling the activation state of at least one of a plurality of functions including power-on self-diagnosis, electrocardiogram analysis, cardiopulmonary resuscitation guide, and electric shock output according to the battery level.

Description

Technology Field

[0001] The present invention relates to a battery state-based automated external defibrillator control device and method. Background Technology

[0002] An Automated External Defibrillator (AED) is an emergency medical device that restores a normal heart rhythm in patients with acute cardiac arrest by delivering an electric shock, and it is widely distributed in public places and medical institutions. To ensure ease of use for the general public, AEDs provide automatic electrocardiogram (ECG) analysis and voice guidance functions. Upon power-on, the device performs a self-test to check the status of key components, such as the battery, electrode pads, and charging circuit, before executing the ECG analysis and defibrillation procedure. Furthermore, AEDs can periodically perform self-tests even in standby mode to verify proper operation and provide notifications to the user in the event of an abnormality.

[0003] However, AEDs often use non-rechargeable batteries, and because their lifespan is limited, the remaining charge decreases over time. If battery replacement is delayed or an AED has not been used for a long period, a problem may arise where it fails to properly perform defibrillation in an emergency due to a lack of battery power.

[0004] In particular, if all functions of the AED operate as in normal mode when the battery level is low, the limited power is consumed by non-emergency functions, which may result in insufficient power for electrocardiogram analysis or electric shock output, which are directly related to the patient's life.

[0005] The technology forming the background of this invention is disclosed in Korean Registered Patent Publication No. 10-2777788. The problem to be solved

[0006] The present invention aims to solve the problems of the aforementioned prior art by providing a battery state-based automated external defibrillator (AED) control device and method that can improve the operational reliability and efficiency of the AED by selectively deactivating at least one of a plurality of functions, including self-diagnosis, electrocardiogram analysis, and electric shock output, according to the battery level, thereby preferentially allocating limited battery power to the most critical functions in emergency situations.

[0007] The present invention aims to solve the problems of the aforementioned prior art and to provide a battery status-based automated external defibrillator control device and method that can contribute to improving survival rates by maintaining cardiopulmonary resuscitation guidance functions and voice guidance functions even when the battery level is low, thereby enabling the minimum necessary emergency treatment for the patient even in situations where the battery is low.

[0008] The present invention aims to solve the problems of the aforementioned conventional technology by providing a battery-state-based automated external defibrillator control device and method that selectively controls multiple functions according to whether there is a malfunction and the type of malfunction, while maintaining functions such as cardiopulmonary resuscitation guidance and voice guidance even in the event of a partial malfunction, thereby providing cardiopulmonary resuscitation guidance to the patient until the arrival of rescue workers even in situations where electric shock output is impossible, thereby increasing the probability of survival and enabling a rapid emergency response.

[0009] However, the technical problems that the embodiments of the present invention aim to solve are not limited to the technical problems described above, and other technical problems may exist. means of solving the problem

[0010] As a technical means for achieving the above-mentioned technical problem, a battery status-based automatic defibrillator control device according to one embodiment of the present invention may include a checking unit for checking the battery status of the automatic defibrillator, a determining unit for determining a battery level based on the battery status, and a control unit for selectively controlling the activation state of at least one of a plurality of functions including power-on self-diagnosis, electrocardiogram analysis, cardiopulmonary resuscitation guide, and electric shock output according to the battery level.

[0011] According to one embodiment of the present invention, the battery state includes a remaining battery amount, and the determination unit may distinguish the battery level according to the remaining battery amount.

[0012] According to one embodiment of the present invention, the determination unit determines the battery level as a first low level if the remaining battery level is less than a first threshold value and is greater than or equal to a second threshold value smaller than the first threshold value, and the control unit may disable the power-on self-diagnosis if the battery level is the first low level.

[0013] According to one embodiment of the present invention, the determination unit determines the battery level as a second low level if the remaining battery level is less than the second threshold value, and the control unit may disable the power-on self-diagnosis, the electrocardiogram analysis, and the electric shock output if the battery level is the second low level.

[0014] According to one embodiment of the present invention, a diagnostic unit for diagnosing the malfunction state of the automated external defibrillator may be further included.

[0015] According to one embodiment of the present invention, the diagnostic unit checks the diagnostic result of a previous self-diagnosis when the battery level is the first low level, and the control unit may selectively control the activation state of at least one of a plurality of functions including electrocardiogram analysis, cardiopulmonary resuscitation guide and electric shock output according to the diagnostic result of the previous self-diagnosis.

[0016] According to one embodiment of the present invention, the diagnostic unit may diagnose the fault state based on at least one of the diagnostic result of the power-on self-diagnosis and the diagnostic result of the previous self-diagnosis.

[0017] As a technical means for achieving the above-mentioned technical problem, a battery status-based automatic defibrillator control method according to one embodiment of the present invention may include a step of checking the battery status of the automatic defibrillator, a step of determining a battery level based on the battery status, and a step of selectively controlling the activation state of at least one of a plurality of functions including power-on self-diagnosis, electrocardiogram analysis, cardiopulmonary resuscitation guide, and electric shock output according to the battery level.

[0018] According to one embodiment of the present invention, the determining step may be to distinguish the battery level according to the remaining battery amount.

[0019] According to one embodiment of the present invention, the determining step may determine the battery level as a first low level if the remaining battery level is less than a first threshold and is greater than or equal to a second threshold that is smaller than the first threshold, and the controlling step may disable the power-on self-diagnosis if the battery level is the first low level.

[0020] According to one embodiment of the present invention, the determining step may determine the battery level as a second low level if the remaining battery level is less than the second threshold value, and the controlling step may disable the power-on self-diagnosis, the electrocardiogram analysis, and the electric shock output if the battery level is the second low level.

[0021] According to one embodiment of the present invention, the method may further include a step of diagnosing the malfunction state of the automated external defibrillator.

[0022] According to one embodiment of the present invention, the diagnosing step may involve checking the diagnostic result of a previous self-diagnosis when the battery level is the first low level, and the controlling step may involve selectively controlling the activation state of at least one of a plurality of functions, including electrocardiogram analysis, cardiopulmonary resuscitation guide, and electric shock output, according to the diagnostic result of the previous self-diagnosis.

[0023] According to one embodiment of the present invention, the diagnosing step may be to diagnose the fault state based on at least one of the diagnosis result of the power-on self-diagnosis and the diagnosis result of the previous self-diagnosis.

[0024] As a technical means for achieving the above-mentioned technical problem, a battery status-based automated external defibrillator control system according to one embodiment of the present invention may include an automated external defibrillator and a battery status of the automated external defibrillator, a battery level determined based on the battery status, and a battery level selectively controlling the activation state of at least one of a plurality of functions including power-on self-diagnosis, electrocardiogram analysis, cardiopulmonary resuscitation guide, and electric shock output according to the battery level.

[0025] The means for solving the problem described above are merely exemplary and should not be interpreted as intended to limit the present invention. In addition to the exemplary embodiments described above, additional embodiments may exist in the drawings and the detailed description of the invention. Effects of the invention

[0026] According to the solution to the problem of the present invention described above, by selectively deactivating at least one of a plurality of functions including self-diagnosis, electrocardiogram analysis, and electric shock output according to the battery level, the limited battery power can be preferentially allocated to the most important function in an emergency situation, thereby improving the operational reliability and operational efficiency of the automated external defibrillator.

[0027] According to the solution to the problem of the present invention described above, by maintaining the cardiopulmonary resuscitation guide function and voice guidance provision function even when the battery level is low, it is possible to provide the minimum necessary emergency treatment to the patient even in a situation where the battery is low, thereby contributing to an improvement in the survival rate.

[0028] According to the solution to the problem of the present invention described above, multiple functions are selectively controlled depending on whether there is a malfunction and the type of malfunction, and by maintaining functions such as CPR guidance and voice guidance even in the event of a partial malfunction, it is possible to provide CPR guidance to the patient until the arrival of rescue workers even in situations where electric shock output is impossible, thereby increasing the probability of survival and enabling a rapid emergency response.

[0029] However, the effects obtainable from this invention are not limited to those described above, and other effects may exist. Brief explanation of the drawing

[0030] FIG. 1 is a schematic diagram of an automated external defibrillator control system according to one embodiment of the present invention. FIG. 2 is a flowchart showing the operation process in the driving mode of an automated external defibrillator according to one embodiment of the present invention. FIG. 3 is a flowchart showing the operation process in standby mode of an automated external defibrillator according to one embodiment of the present invention. FIG. 4 is a schematic block diagram of an automated external defibrillator control device according to one embodiment of the present invention. FIG. 5 is an operation flowchart for an automated external defibrillator control method according to one embodiment of the present invention. Specific details for implementing the invention

[0031] Embodiments of the present invention are described below with reference to the attached drawings to enable those skilled in the art to easily implement the invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. Furthermore, in order to clearly explain the present invention in the drawings, parts unrelated to the explanation have been omitted, and similar parts throughout the specification are denoted by similar reference numerals.

[0032] Throughout this specification, when a part is described as being "connected" to another part, this includes not only cases where they are "directly connected," but also cases where they are "electrically connected" or "indirectly connected" with other elements interposed between them.

[0033] Throughout the entire specification, when a component is described as being located "on," "on top," "on top," "under," "on bottom," or "on bottom" of another component, this includes not only cases where the component is in contact with the other component but also cases where another component exists between the two components.

[0034] Throughout this specification, when a part is described as "comprising" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0035] The present invention relates to a battery status-based automated external defibrillator control device and method. Additionally, the present invention relates to a fault status-based automated external defibrillator control device and method.

[0036] FIG. 1 is a schematic diagram of an automated external defibrillator control system according to one embodiment of the present invention.

[0037] Referring to FIG. 1, an automated external defibrillator control system (10) according to one embodiment of the present invention may include an automated external defibrillator control device (100), an automated external defibrillator (200), and an external terminal (300).

[0038] According to one embodiment of the present invention, the automatic defibrillator control system (10) may be a system capable of improving the survival rate of a patient by selectively controlling a plurality of functions based on the battery status and failure status of the automatic defibrillator (200), thereby maintaining the minimum functions necessary for emergency treatment even when the battery level is low or some failures occur.

[0039] In this regard, the automatic defibrillator control device (100) may check the battery status of the automatic defibrillator (200) in real time, classify the battery level according to the remaining battery amount, and selectively control the activation state of at least one of a plurality of functions including self-diagnosis, electrocardiogram analysis, CPR guidance, electric shock output, emergency contact, visual status display, voice guidance provision, CPR feedback sensor function, and internal high-voltage energy discharge based on the classified battery level and the fault diagnosis result. Meanwhile, the plurality of functions are not limited to the functions described above and may include functions typically added to the automatic defibrillator and various functions that may be additionally installed in the future.

[0040] According to one embodiment of the present invention, the automatic defibrillator control device (100) may be implemented as a separate and independent device from the automatic defibrillator (200), but in actual implementation, it may be embedded in the automatic defibrillator (200) in the form of software or firmware and executed by the main processor of the automatic defibrillator (200). Additionally, the automatic defibrillator control device (100) may be composed of control logic implemented within the microcontroller unit (MCU) of the automatic defibrillator (200).

[0041] According to one embodiment of the present invention, an automated external defibrillator (200) (AED) may restore a normal heart rhythm by applying an electric shock to a patient in acute cardiac arrest. The defibrillator (200) may include electrode pads attached to the patient's chest, an electrocardiogram measurement circuit for measuring an electrocardiogram, an electric shock output circuit for generating an electric shock, a speaker for providing voice guidance to the user, an LED or display for indicating the status of the device, and a main processor for controlling these components.

[0042] For example, the automated external defibrillator (200) may use a non-rechargeable lithium battery, and the standby life of the battery may be about 5 years from the date of manufacture. The automated external defibrillator (200) may periodically perform self-diagnosis in standby mode to check the status of the battery, electrode pads, charging circuit, etc., and if an abnormality is detected, notify the user through the status display window on the front panel.

[0043] According to one embodiment of the present invention, the external terminal (300) may be a medical institution terminal or an emergency rescue center terminal that receives an emergency contact from the defibrillator control device (100) when an emergency situation occurs. The external terminal (300) may receive GPS location information of the automated external defibrillator (200), AED operation information, patient status information, etc., to support a rapid emergency response.

[0044] According to one embodiment of the present invention, the external terminal (300) is a device that is linked to the defibrillator control device (100) through a network, and may be, for example, a smartphone, smart pad, tablet PC, wearable device, and all kinds of wireless communication devices such as PCS (Personal Communication System), GSM (Global System for Mobile communication), PDC (Personal Digital Cellular), PHS (Personal Handyphone System), PDA (Personal Digital Assistant), IMT (International Mobile Telecommunication)-2000, CDMA (Code Division Multiple Access)-2000, W-CDMA (W-Code Division Multiple Access), Wibro (Wireless Broadband Internet) terminals, and a fixed terminal such as a desktop computer and a smart TV.

[0045] According to one embodiment of the present invention, examples of a network for sharing information between a defibrillator control device (100) and an external terminal (300) may include, but are not limited to, a 3GPP (3rd Generation Partnership Project) network, an LTE (Long Term Evolution) network, a 5G network, a WIMAX (World Interoperability for Microwave Access) network, a wired / wireless Internet (Internet), a LAN (Local Area Network), a Wireless LAN (Wireless Local Area Network), a WAN (Wide Area Network), a PAN (Personal Area Network), a Bluetooth network, a Wi-Fi network, a NFC (Near Field Communication) network, a satellite broadcasting network, an analog broadcasting network, a DMB (Digital Multimedia Broadcasting) network, etc.

[0046] Hereinafter, a specific operation process of an automated external defibrillator control device (100) according to one embodiment of the present invention will be described. In this regard, FIGS. 2 and FIGS. 3, which are referenced therein, do not limit the operation process of the automated external defibrillator control device (100) and the automated external defibrillator (200) of the present invention, and should be interpreted as allowing the order of the operation process shown in FIGS. 2 and FIGS. 3 to be changed, or the omission, change, and addition of some operation processes according to various embodiments.

[0047] For convenience of explanation, the automatic defibrillator control device (100) will be referred to as the 'control device (100)' below.

[0048] According to one embodiment of the present invention, the control device (100) may operate in a driving mode and a standby mode. Here, the driving mode may be an operating mode while the user directly turns on the power of the automated external defibrillator (200) to operate it. Additionally, the standby mode may include a state in which the power is off and an operating mode in which the power is automatically turned on for periodic self-diagnosis that is performed periodically without the user directly operating the power, and the power is turned off again after the periodic self-diagnosis is performed automatically.

[0049] FIG. 2 is a flowchart showing the operation process in the driving mode of an automated external defibrillator according to one embodiment of the present invention.

[0050] According to one embodiment of the present invention, the control device (100) can selectively control the activation state of at least one of a plurality of functions, including power-on self-diagnosis, electrocardiogram analysis, cardiopulmonary resuscitation guide, and electric shock output, depending on the battery level, whether there is a failure and the type of failure.

[0051] According to one embodiment of the present invention, when the power of the automatic defibrillator (200) is turned on by user operation, the control device (100) can check the battery status of the automatic defibrillator (200). In other words, the control device (100) may be able to adaptively determine a subsequent sequence of operations based on the remaining battery level in order to efficiently use the limited battery power.

[0052] Here, the battery condition may include the remaining battery capacity. However, it is not limited thereto and may further include conditions such as the battery's internal resistance, discharge capacity, and temperature, but the control device (100) may use the remaining battery capacity as an important judgment criterion when controlling the automated external defibrillator (200). For example, the control device (100) may measure the voltage of the battery through an internal voltage sensor after power is applied and calculate the remaining battery capacity based on the measured voltage value.

[0053] Referring to FIG. 2, the control device (100) can determine the battery level based on the battery status. The battery level may be divided into multiple levels depending on the remaining battery amount. For example, the control device (100) may classify the remaining battery amount as a High level (High level, Normal level) when it is greater than or equal to a first threshold value (TH1), a first Low level when it is less than the first threshold value and greater than or equal to a second threshold value (TH2), and a second Low level when it is less than the second threshold value. Here, the first Low level and the second Low level may be expressed as Low level (L level in FIG. 2) and Critical Low level (CL level in FIG. 2), respectively.

[0054] In other words, the control device (100) can determine the battery level as a high level if the remaining battery level is greater than or equal to a first threshold value, determine the battery level as a first low level if the remaining battery level is less than the first threshold value and greater than or equal to a second threshold value that is smaller than the first threshold value, and determine the battery level as a second low level if the remaining battery level is less than the second threshold value.

[0055] The control device (100) may display a battery level on the front panel of the automatic defibrillator (200), wherein, for example, the first low level may be displayed by flashing only one of the multiple battery display slots, and the second low level may be displayed by turning off all of the multiple battery display slots but flashing only the borders of the multiple battery display slots.

[0056] Referring to FIG. 2, the control device (100) can check whether the battery level is at a high level (H level). If the battery level is at a high level, the control device (100) can enter a normal operation mode and perform a Power On Self Test. Here, the Power On Self Test is a self test that is automatically performed before the execution of electrocardiogram analysis, cardiopulmonary resuscitation guidance, and electric shock output when the power of the automated external defibrillator (200) is turned on by user operation, and may be different from the periodic self test described later.

[0057] Referring to FIG. 2, the control device (100) can check whether the battery level is at a first low level (L level) again if the battery level is not at a high level. If the battery level is at a first low level, the control device (100) can provide a notification that the battery level is at a first low level through voice guidance and visual guidance via the front panel, disable the power-on self-diagnosis, and check the diagnosis results of the previous self-diagnosis that was previously performed.

[0058] Here, the previous self-diagnosis may include previous cycle self-diagnosis and previous power-on self-diagnosis that were performed at a point in time prior to the current time. However, when the control device (100) checks the results of the previous self-diagnosis, the power-on self-diagnosis may not be recorded for a long time as it is performed only in operation mode, and thus may hinder accurate judgment; therefore, the control device (100) may prioritize checking the results of the previous cycle self-diagnosis that is performed periodically in standby mode. However, it is not limited to this. For example, the control device (100) may prioritize checking the results of the previous cycle self-diagnosis and the previous power-on self-diagnosis that have records of being performed more recently. As another example, the control device (100) may not check only one previous self-diagnosis result, but may check two or more previous self-diagnosis results in reverse chronological order, or may check the results of previous self-diagnosis performed during a preset period.

[0059] Additionally, referring to FIG. 2, the control device (100) may determine that the battery level is at a second low level (CL level) if the battery level is not both a high level and a first low level. If the battery level is at a second low level, the control device (100) may provide a notification that the battery level is at a second low level through voice guidance and visual guidance via the front panel, and may provide a cardiopulmonary resuscitation guide function by deactivating power-on self-diagnosis, electrocardiogram analysis, and electric shock output. Subsequently, the control device (100) may repeat the cardiopulmonary resuscitation guide until the power of the automated external defibrillator (200) is turned off.

[0060] Here, the control device (100) provides a cardiopulmonary resuscitation guide function and may further provide a cardiopulmonary resuscitation feedback sensor function. In other words, the control device (100) may activate the cardiopulmonary resuscitation feedback sensor function when the cardiopulmonary resuscitation guide is activated. In this regard, the cardiopulmonary resuscitation feedback sensor function is a function that measures the acceleration generated when a rescuer presses on the patient's chest through an accelerometer inside the feedback sensor, mathematically calculates this to determine the compression depth and compression rate in real time, and transmits the measured data to the main body of the automated external defibrillator (200) through a connecting cable.

[0061] The control device (100) can provide audiovisual feedback to the rescuer based on information received from the sensor. Specifically, the control device (100) can provide voice guidance such as "Push Harder" or "Good Compressions" if the compression depth deviates from the recommended range (minimum 5 cm, maximum 6 cm for adults), output a metronome sound (beat sound) to guide the rescuer to maintain a compression rate of 100 to 120 compressions per minute, provide a warning such as "Remove hands from chest" if sufficient recoil is not achieved after chest compressions, and display the current compression depth as a bar graph or number on the front panel screen to assist in intuitive verification. By utilizing these cardiopulmonary resuscitation feedback sensor functions, the control device (100) can support cardiopulmonary resuscitation by ensuring high-quality cardiopulmonary resuscitation is maintained, maximizing blood flow to the brain, and providing feedback to the rescuer.

[0062] Meanwhile, these feedback sensors are typically disposable consumables that are either integrated with the pad or attached between the pads. They are discarded after a single use to ensure hygiene and prevent infection, and are designed to be placed in the center of the chest (below the sternum) to serve as a guide for rescuers to locate the compression position. Additionally, to ensure the reliability of the conductive gel or internal components within the sensor, an expiration date (typically 2 to 5 years) is set.

[0063] According to one embodiment of the present invention, a control device (100) can diagnose the failure state of an automated external defibrillator (200). At this time, the failure state may include whether there is a failure and the type of failure. Specifically, the control device (100) may classify the automated external defibrillator (200) into normal and failure states, and may diagnose the failure type as one of a first failure type in which the main function is failure, a second failure type in which the sound function is failure, and a third failure type in which other functions are failure.

[0064] In this regard, as described below, the control device (100) may diagnose a fault condition based on at least one of a periodic self-diagnosis performed in standby mode and a power-on self-diagnosis performed in driving mode. Additionally, the control device (100) may diagnose a fault condition based on at least one of the diagnosis result of the power-on self-diagnosis and the diagnosis result of the previous self-diagnosis.

[0065] Referring again to FIG. 2, the control device (100) may proceed with charging in preparation for electrocardiogram analysis and electric shock output when the battery level is at a high level and the diagnosis result is normal (pass) when the battery level is at a high level and the previous self-diagnosis is confirmed and the diagnosis result is normal (pass).

[0066] On the other hand, referring to FIG. 2, the control device (100) can determine the type of failure of the corresponding failure state if the diagnosis result is a failure when the battery level is a high level and the power-on self-diagnosis is performed, or if the diagnosis result is a failure when the battery level is a first low level and the previous self-diagnosis is confirmed.

[0067] For example, the control device (100) can check whether the failure type is a third failure type. In this regard, the third failure type among the failure types is a type in which other functions are in a failure state, and if the failure type is a third failure type, the control device (100) may disable power-on self-diagnosis, electrocardiogram analysis, and electric shock output, and provide only the cardiopulmonary resuscitation guide function. Subsequently, the control device (100) may repeat the cardiopulmonary resuscitation guide until the power of the automated external defibrillator (200) is turned off.

[0068] However, the control device (100) may turn off the power of the automated external defibrillator (200) after providing a notification of equipment failure, if the failure type is the first failure type or the second failure type, because the main function is faulty or the sound function for providing cardiopulmonary resuscitation guidance is faulty.

[0069] Meanwhile, the main functions here may include components responsible for core functions directly related to the patient's life, such as electrocardiogram analysis, electric shock output, and cardiopulmonary resuscitation guidance, and may include a main processor, ROM, RAM, electrocardiogram measurement circuit, charging circuit, etc.

[0070] Regarding the type of failure, the first type of failure is a type of failure in which an abnormality occurs in the main function including oscillation, RAM, ROM, etc. When the control device (100) identifies the first type of failure in either the power-on self-diagnosis or the periodic self-diagnosis described later, it can play a failure notification for this and turn off the power of the automatic defibrillator (200). In addition, when the first type of failure occurs, the control device (100) can prevent the power of the automatic defibrillator (200) from turning on until the corresponding failure is corrected.

[0071] Additionally, the second type of failure is a case where there is a malfunction in the sound function. Since it may be difficult to provide accurate information to the user utilizing it, even if actual electrocardiogram analysis or electric shock output is possible, the control device (100) can play a failure notification regarding the second type of failure and turn off the power of the automatic defibrillator (200) when the second type of failure is identified in either the power-on self-diagnosis or the periodic self-diagnosis. Additionally, the control device (100) can provide a notification regarding the second type of failure through visual elements such as a front panel or LED indicator light rather than the sound function, and if power is turned on again to the automatic defibrillator (200) before the failure is corrected, it can provide the same notification and turn off the power of the automatic defibrillator (200).

[0072] Additionally, the third type of failure is a type of failure in which an abnormality occurs in other functions including Temperature, ECG, Low Shock, High Shock, BI, HV Limit, SE Module COM, Key Stuck, MSP430 COM, etc. When the third type of failure is identified in the power-on self-diagnosis, the control device (100) may play a failure notification regarding this and activate the cardiopulmonary resuscitation guide function as described above. At this time, the control device (100) may provide a cardiopulmonary resuscitation feedback sensor function together with the second low level as described above, but is not limited thereto, and the description of the cardiopulmonary resuscitation feedback sensor function is omitted below as described above.

[0073] Additionally, the control device (100) may provide a fault notification once again and turn off the power of the automated external defibrillator (200) if a third fault type is identified during periodic self-diagnosis or if power is turned on again before the fault is corrected. However, this is not limited thereto, and the control device (100) may provide a fault notification if there is no abnormality in the voice provision function and internal calculation function in the third fault type, and may provide a CPR guide immediately to support minimal emergency treatment even in the event of a fault.

[0074] Additionally, if the control device (100) determines that the automated external defibrillator (200) is malfunctioning regardless of the type of malfunction, it can activate an emergency contact function to transmit an emergency contact to an external terminal (300), etc. Through this, the control device (100) can provide the best possible emergency treatment even in the event of a malfunction of the automated external defibrillator (200).

[0075] Referring again to FIG. 2, the control device (100) can determine whether an electric shock output (Shock) is necessary through electrocardiogram analysis. In this regard, the control device (100) can check whether the electrode pads for electrocardiogram analysis and electric shock output are properly attached prior to charging in preparation for electrocardiogram analysis and electric shock output.

[0076] Additionally, confirmation of electrode pad attachment can be performed by measuring the impedance between the electrode pad and the patient's skin. For example, the control device (100) may determine that the pad is properly attached if the measured impedance is within the range of 25 to 200, and determine that the pad is not properly attached if it is outside this range, and may provide a guide requesting reattachment of the pad. When the recording function is activated, the control device (100) may record the entire process of the emergency situation by recording voice and ambient sounds on an SD card from the time the pad is attached.

[0077] In other words, the control device (100) can analyze the electrocardiogram when pad attachment is confirmed, measure and analyze the patient impedance, and determine whether an electric shock output is necessary based on the analysis results. For example, the control device (100) can collect an electrocardiogram signal for 5 to 10 seconds, and then analyze the frequency and amplitude characteristics of the signal to determine whether an electric shock output is necessary.

[0078] Referring to FIG. 2, the control device (100) may output (apply) an electric shock if it determines that an electric shock is necessary. At this time, the control device (100) may provide voice guidance regarding the output of the electric shock. Additionally, the control device (100) may omit the output (apply) of the electric shock if it determines that the electric shock is unnecessary. At this time, when the output of the electric shock is omitted, the control device (100) may disable the internal high-voltage energy discharge function to save more energy. In other words, the control device (100) may disable the internal high-voltage energy discharge function when the output of the electric shock is deactivated.

[0079] In this regard, high-voltage charging is a process of generating a high voltage between approximately 1,500V and 2,000V required to restart the heart by converting a low DC voltage supplied from the battery (typically a 12V to 15V lithium battery) of an automated external defibrillator (200) into a low-frequency alternating current, passing it through a transformer to increase the voltage, and then rectifying it back into DC and storing it in a capacitor. Depending on the patient's impedance (body resistance), about 200J of energy is charged for an adult, and when the target voltage is charged in the capacitor, the control device (100) stops charging and provides a "press the shock button" instruction.

[0080] In addition, internal disarm is a process that safely dissipates charged high-voltage energy within the device without delivering it to the patient. It is activated when the shock button is not pressed within a certain time (typically 20 seconds) after charging is complete, when the patient's electrocardiogram (ECG) is re-analyzed during or after charging and changes to a rhythm that does not require a shock, when a device error is detected, or when the user forcibly turns off the power or the pads are disconnected. The internal safety switch (relay or semiconductor switch) is switched toward the internal disarm circuit rather than toward the patient, causing the high voltage stored in the capacitor to pass through a high-resistance discharge resistor, converting electrical energy into thermal energy and causing the capacitor's voltage to drop close to 0V, thereby preventing accidents in which rescuers or patients receive unintended electric shocks.

[0081] The control device (100) can save battery energy by preventing heat loss through the internal resistor by omitting (canceling) this internal discharge process when it is determined that an electric shock is unnecessary, and can provide the effect of allowing the cardiopulmonary resuscitation guide function to be sustained for a longer period, especially when the battery level is at the second low level.

[0082] Referring to FIG. 2, the control device (100) may provide a CPR guide after outputting or omitting an electric shock, and may repeat the CPR guide until the power of the automated external defibrillator (200) is turned off. In this regard, the time when the power of the automated external defibrillator (200) described above is turned off may include at least one of the following: when the user turns off the power, when the battery is completely depleted, or when a rescue team arrives.

[0083] According to one embodiment of the present invention, the control device (100) may display status information regarding battery status and fault status through a front panel or provide notifications via voice guidance. Specifically, the control device (100) may display a text message through a front panel and simultaneously output it as voice through a speaker. In addition, the control device (100) may visually indicate the battery status and fault status of the automated external defibrillator (200) through color changes or flashing patterns of an LED indicator, and may audibly notify of emergency situations or situations requiring attention through warning sounds or notification sounds.

[0084] For example, the control device (100) may indicate that when the battery level is at a first low level, only one of the multiple battery indicator slots is flashing, and when it is at a second low level, only the borders of the multiple battery indicator slots are flashing. As another example, the control device (100) may display an "X" on the status display window when a fault is detected and may play different warning sounds depending on the type of fault. For example, the control device (100) may play a short beep three times when the battery is low, play a long beep twice when the impact output circuit is faulty, and play a continuous warning sound when the main function is faulty. This multi-sensory guidance method can help the user recognize information more clearly and respond quickly in emergency situations.

[0085] As described above, the control device (100) can improve the operational reliability and operational efficiency of the automated external defibrillator by selectively deactivating at least one of a plurality of functions, including self-diagnosis, electrocardiogram analysis, and electric shock output, depending on the battery level, thereby preferentially allocating limited battery power to the most important functions in emergency situations.

[0086] In addition, the control device (100) can contribute to improving the survival rate by maintaining the cardiopulmonary resuscitation guide function and voice guidance function even when the battery level is low, thereby enabling the minimum necessary emergency treatment for the patient even in a low-battery situation.

[0087] In addition, the control device (100) selectively controls multiple functions depending on whether there is a malfunction and the type of malfunction, and maintains functions such as cardiopulmonary resuscitation guidance and voice guidance even in the event of a partial malfunction, thereby providing cardiopulmonary resuscitation guidance to the patient until the arrival of the rescue team even in situations where electric shock output is impossible, thereby increasing the probability of survival and enabling a rapid emergency response.

[0088] FIG. 3 is a flowchart showing the operation process in standby mode of an automated external defibrillator according to one embodiment of the present invention.

[0089] According to one embodiment of the present invention, a control device (100) may periodically perform self-diagnosis in standby mode. This self-diagnosis is referred to as a periodic self-test. Specifically, referring to FIG. 3, the control device (100) may perform at least one of a daily test, a weekly test, and a monthly test. Specifically, the control device (100) may sequentially check whether a daily test, a weekly test, and a monthly test are necessary and perform each test. At this time, the determination of whether each test is necessary may follow the self-diagnosis cycle in accordance with medical device-related laws, but the details may be adjustable by user settings.

[0090] Referring to FIG. 3, the control device (100) may check whether the diagnosis result of the periodic self-diagnosis has passed, and if it has not passed, output an alarm that notifies of equipment failure and requests equipment replacement. For example, the control device (100) may notify the user by illuminating an "X" mark or a red LED through the status display window of the front panel, and may notify the user of equipment abnormalities by generating a warning sound if necessary. Additionally, the control device (100) may transmit failure information to a remote management system (RMS) via a network so that an administrator can take prompt action.

[0091] Additionally, referring to FIG. 3, the control device (100) may execute a Pads Quality Test procedure when the diagnosis result of the periodic self-diagnosis is passed. The Pads Quality Test may involve checking the expiration date, connection status, impedance characteristics, etc., of the electrode pads to determine whether the pads are in a state where they can be used normally.

[0092] Additionally, referring to FIG. 3, the control device (100) may determine whether the pad quality test result has passed after the pad quality test. If the pad quality test result has not passed, the control device (100) may output a pad replacement alarm. At this time, the control device (100) may display a pad-related warning message through the front panel or notify that a pad replacement is required through voice guidance. If the pad quality test result has passed, the control device (100) may terminate the self-diagnosis process and return to a normal standby state.

[0093] Through this multi-layered self-diagnosis process, the control device (100) can periodically check the battery status, electrode pad connection status, and the operating status of each circuit, and can continuously maintain the reliability and readiness of the automated external defibrillator (200). In addition, the results of each test can be stored on an SD card and managed as a maintenance history of the automated external defibrillator (200), and can be transmitted to a remote management system to be used for real-time monitoring and preventive maintenance.

[0094] According to one embodiment of the present invention, the control device (100) can continuously acquire and analyze an electrocardiogram signal even while cardiopulmonary resuscitation is being performed. Generally, during cardiopulmonary resuscitation, periodic and repetitive mechanical artifacts are included in the electrocardiogram signal due to chest compressions, which may make it difficult to accurately interpret the electrocardiogram signal. Accordingly, in this embodiment, by performing electrocardiogram analysis considering the signal characteristics occurring during cardiopulmonary resuscitation, it may be possible to determine the heart rhythm status without interrupting cardiopulmonary resuscitation.

[0095] According to one embodiment, the control device (100) may apply at least one of an adaptive filter, a frequency band separation filter, or a signal correlation analysis technique to remove or mitigate chest compression artifacts included in an electrocardiogram signal obtained during cardiopulmonary resuscitation. For example, the control device (100) can estimate an electrocardiogram component corresponding to the actual heart rhythm by removing a specific frequency component corresponding to the cardiopulmonary resuscitation compression cycle. Through this, the control device (100) can more reliably determine whether defibrillation is necessary even during cardiopulmonary resuscitation.

[0096] Additionally, the control device (100) can dynamically change the analysis interval, threshold, or judgment criteria of the electrocardiogram analysis algorithm based on at least one of the information on whether cardiopulmonary resuscitation is performed, the cardiopulmonary resuscitation compression cycle, and the compression intensity. Accordingly, different analysis logics may be applied during cardiopulmonary resuscitation and when cardiopulmonary resuscitation is stopped, and through this, the control device (100) can reduce the possibility of electrocardiogram misdiagnosis and improve the accuracy of defibrillation judgment.

[0097] According to one embodiment, the control device (100) may be controlled to reanalyze an electrocardiogram signal based on user input while performing cardiopulmonary resuscitation. The user input may be at least one of a voice command, a button input, or a touch input, and, for example, when the user inputs a predefined command such as "reanalyze electrocardiogram," the control device (100) may immediately resume electrocardiogram analysis while maintaining the state of performing cardiopulmonary resuscitation.

[0098] According to this configuration, the rescuer can actively control the timing of the electrocardiogram analysis when a change in the patient's condition is detected, and can reflect changes in the electrocardiogram condition more quickly compared to the conventional method in which the electrocardiogram analysis is performed only after a certain cardiopulmonary resuscitation cycle has ended. As a result, the control device (100) can minimize the time for interrupting cardiopulmonary resuscitation and adjust the defibrillation timing more appropriately.

[0099] According to another embodiment, the control device (100) can perform a voice recognition function by taking into account environmental noise and chest compression noise that occur during cardiopulmonary resuscitation. Specifically, the control device (100) can apply a noise removal algorithm to separate cardiopulmonary resuscitation noise, ambient environmental noise, and user voice, thereby selectively recognizing only the user's voice commands.

[0100] Additionally, the control device (100) can automatically adjust the voice recognition sensitivity according to the user's pronunciation characteristics, ambient noise level, or installation environment. Accordingly, voice command recognition errors can be minimized even in high-noise environments such as airports or roadsides, and stable user input processing can be achieved even while performing cardiopulmonary resuscitation.

[0101] FIG. 4 is a schematic block diagram of an automated external defibrillator control device according to one embodiment of the present invention.

[0102] Referring to FIG. 4, the control device (100) may include an inspection unit (110), a judgment unit (120), a diagnosis unit (130), a control unit (140), and a display unit (150).

[0103] According to one embodiment of the present invention, the inspection unit (110) can check the battery status of the automated external defibrillator (200). Here, the battery status may include the remaining battery capacity.

[0104] According to one embodiment of the present invention, the judgment unit (120) can determine the battery level based on the battery status. The judgment unit (120) may distinguish the battery level according to the remaining battery amount.

[0105] Specifically, the judgment unit (120) can determine the battery level as a first low level if the remaining battery level is less than a first threshold value and is greater than or equal to a second threshold value that is smaller than the first threshold value. Additionally, the judgment unit (120) can determine the battery level as a second low level if the remaining battery level is less than a second threshold value.

[0106] According to one embodiment of the present invention, the diagnostic unit (130) can diagnose the fault condition of the automated external defibrillator (200). Specifically, the diagnostic unit (130) diagnoses the fault condition based on at least one of a periodic self-diagnosis performed in standby mode and a power-on self-diagnosis performed in operation mode, and may diagnose the fault condition based on at least one of the diagnosis result of the power-on self-diagnosis and the diagnosis result of the previous self-diagnosis. At this time, the diagnostic unit (130) can check the diagnosis result of the previous self-diagnosis if the battery level is at the first low level.

[0107] At this time, the fault condition may include whether there is a fault and the type of fault. In this regard, the diagnostic unit (130) may diagnose the type of fault as one of a first fault type in which the main function is faulty, a second fault type in which the acoustic function is faulty, and a third fault type in which other functions are faulty.

[0108] According to one embodiment of the present invention, the control unit (140) can selectively control the activation state of at least one of a plurality of functions, including power-on self-diagnosis, electrocardiogram analysis, cardiopulmonary resuscitation guide and electric shock output, depending on the battery level.

[0109] Specifically, the control unit (140) may disable the power-on self-diagnosis when the battery level is at a first low level. Additionally, the control unit (140) may disable the power-on self-diagnosis, electrocardiogram analysis, and electric shock output when the battery level is at a second low level. Additionally, the control unit (140) may turn off the power of the automatic defibrillator (200) when the fault type is one of the first fault type and the second fault type, and may disable the power-on self-diagnosis, electrocardiogram analysis, and electric shock output when the fault type is the third fault type.

[0110] According to one embodiment of the present invention, the display unit (150) can display status information regarding a fault condition through the front panel.

[0111] Below, based on the details described above, we will briefly examine the operation flow of the present invention.

[0112] FIG. 5 is an operation flowchart for an automated external defibrillator control method according to one embodiment of the present invention.

[0113] The automated external defibrillator control method illustrated in FIG. 5 can be performed by the automated external defibrillator control device (100) described above. Therefore, even if the content described below is omitted, the description of the automated external defibrillator control device (100) can be applied equally to the description of the automated external defibrillator control method.

[0114] Referring to FIG. 5, in step S11, the inspection unit (110) can check the battery status of the automated external defibrillator (200). Here, the battery status may include the remaining battery capacity.

[0115] Next, in step S12, the judgment unit (120) can determine the battery level based on the battery status. The judgment unit (120) may distinguish the battery level according to the remaining battery amount.

[0116] Specifically, in step S12, the judgment unit (120) can determine the battery level as a first low level if the remaining battery level is less than a first threshold and is greater than or equal to a second threshold that is smaller than the first threshold. Additionally, in step S12, the judgment unit (120) can determine the battery level as a second low level if the remaining battery level is less than a second threshold.

[0117] Next, in step S13, the diagnostic unit (130) can diagnose the fault condition of the automated external defibrillator (200). Specifically, in step S13, the diagnostic unit (130) diagnoses the fault condition based on at least one of a periodic self-diagnosis performed in standby mode and a power-on self-diagnosis performed in operation mode, and may diagnose the fault condition based on at least one of the diagnosis result of the power-on self-diagnosis and the diagnosis result of the previous self-diagnosis. At this time, in step S13, if the battery level is at the first low level, the diagnostic unit (130) can check the diagnosis result of the previous self-diagnosis.

[0118] At this time, the fault condition may include whether there is a fault and the type of fault. In this regard, in step S13, the diagnostic unit (130) may diagnose the type of fault as one of a first fault type in which the main function is faulty, a second fault type in which the acoustic function is faulty, and a third fault type in which other functions are faulty.

[0119] Next, in step S14, the control unit (140) can selectively control the activation state of at least one of a plurality of functions, including power-on self-diagnosis, electrocardiogram analysis, cardiopulmonary resuscitation guide, and electric shock output, depending on the battery level.

[0120] Specifically, in step S14, the control unit (140) may disable the power-on self-diagnosis if the battery level is at a first low level. Additionally, in step S14, the control unit (140) may disable the power-on self-diagnosis, electrocardiogram analysis, and electric shock output if the battery level is at a second low level. Additionally, in step S14, the control unit (140) may turn off the power of the automated external defibrillator (200) if the fault type is one of the first fault type and the second fault type, and may disable the power-on self-diagnosis, electrocardiogram analysis, and electric shock output if the fault type is the third fault type.

[0121] Next, in step S15, the display unit (150) can display status information regarding the fault condition through the front panel.

[0122] In the description above, steps S11 through S15 may be further divided into additional steps or combined into fewer steps according to an embodiment of the present invention. Additionally, some steps may be omitted as necessary, and the order of the steps may be changed.

[0123] An automated external defibrillator control method according to one embodiment of the present invention may be implemented in the form of program instructions that can be executed through various computer means and recorded on a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc., either individually or in combination. The program instructions recorded on the medium may be those specifically designed and configured for the present invention, or they may be those known and available to those skilled in the art of computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes; optical recording media such as CD-ROMs and DVDs; magneto-optical media such as floptical disks; and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, and flash memory. Examples of program instructions include machine code, such as that generated by a compiler, as well as high-level language code that can be executed by a computer using an interpreter, etc. The above-described hardware device may be configured to operate as one or more software modules to perform the operation of the present invention, and vice versa.

[0124] In addition, the aforementioned automated external defibrillator control method may also be implemented in the form of a computer program or application executed by a computer stored on a recording medium.

[0125] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will understand that other specific forms can be easily modified without altering the technical concept or essential features of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single unit may be implemented in a distributed manner, and components described as distributed may likewise be implemented in a combined form.

[0126] The scope of the present invention is defined by the claims set forth below rather than by the detailed description above, and all modifications or variations derived from the meaning and scope of the claims and the concept of equivalents thereof should be interpreted as being included within the scope of the present invention. Explanation of the symbols

[0127] 10: Battery Status-Based Automated External Defibrillator Control System 100: Battery Status-Based Automated External Defibrillator Control Device 110: Inspection section 120: Judgment Department 130: Diagnostic Department 140: Control unit 200: Automated External Defibrillator 300: External terminal

Claims

Claim 1 A battery status-based automatic defibrillator control device comprising: a checking unit for checking the battery status of the automatic defibrillator; a judgment unit for determining a battery level based on the battery status; and a control unit for selectively controlling the activation state of at least one of a plurality of functions including power-on self-diagnosis, electrocardiogram analysis, cardiopulmonary resuscitation guide, and electric shock output according to the battery level, wherein the battery status includes a remaining battery amount, and the judgment unit distinguishes the battery level according to the remaining battery amount, wherein if the remaining battery amount is less than a first threshold value and is greater than or equal to a second threshold value smaller than the first threshold value, the battery level is determined to be a first low level, and the control unit deactivates the power-on self-diagnosis if the battery level is the first low level. Claim 2 delete Claim 3 delete Claim 4 A control device according to claim 1, wherein the judgment unit determines the battery level as a second low level if the remaining battery amount is less than the second threshold value, and the control unit disables the power-on self-diagnosis, the electrocardiogram analysis, and the electric shock output if the battery level is the second low level. Claim 5 A control device according to claim 1, further comprising a diagnostic unit for diagnosing the failure state of the automated external defibrillator. Claim 6 A control device according to claim 5, wherein the diagnostic unit checks the diagnostic result of a previous self-diagnosis when the battery level is the first low level, and the control unit selectively controls the activation state of at least one of a plurality of functions including electrocardiogram analysis, cardiopulmonary resuscitation guide, and electric shock output according to the diagnostic result of the previous self-diagnosis. Claim 7 A control device according to claim 6, wherein the diagnostic unit diagnoses the fault condition based on at least one of the diagnostic result of the power-on self-diagnosis and the diagnostic result of the previous self-diagnosis. Claim 8 A control device according to claim 1, wherein the plurality of functions further include a cardiopulmonary resuscitation feedback sensor function and an internal high-voltage discharge function, and the control unit activates the cardiopulmonary resuscitation feedback sensor function when the cardiopulmonary resuscitation guide is activated and deactivates the internal high-voltage discharge function when the electric shock output is deactivated. Claim 9 A control method for an automated external defibrillator based on battery status, comprising: a step of checking the battery status of the automated external defibrillator; a step of determining a battery level based on the battery status; and a step of selectively controlling the activation state of at least one of a plurality of functions including power-on self-diagnosis, electrocardiogram analysis, cardiopulmonary resuscitation guide, and electric shock output according to the battery level, wherein the battery status includes a remaining battery amount, and the determining step distinguishes the battery level according to the remaining battery amount, wherein the determining step determines the battery level as a first low level if the remaining battery amount is less than a first threshold and is greater than or equal to a second threshold that is smaller than the first threshold, and the controlling step deactivates the power-on self-diagnosis if the battery level is the first low level. Claim 10 delete Claim 11 delete Claim 12 A control method according to claim 9, wherein the determining step determines the battery level as a second low level if the remaining battery level is less than the second threshold value, and the controlling step disables the power-on self-diagnosis, the electrocardiogram analysis, and the electric shock output if the battery level is the second low level. Claim 13 A control method according to claim 9, further comprising the step of diagnosing the malfunction state of the automated external defibrillator. Claim 14 A control method according to claim 13, wherein the diagnosing step checks the diagnostic result of a previous self-diagnosis when the battery level is the first low level, and the controlling step selectively controls the activation state of at least one of a plurality of functions including electrocardiogram analysis, cardiopulmonary resuscitation guide and electric shock output according to the diagnostic result of the previous self-diagnosis. Claim 15 A control method according to claim 14, wherein the diagnosing step is to diagnose the fault state based on at least one of the diagnosis result of the power-on self-diagnosis and the diagnosis result of the previous self-diagnosis. Claim 16 A control method according to claim 9, wherein the plurality of functions further include a cardiopulmonary resuscitation feedback sensor function and an internal high voltage discharge function, and the controlling step is to activate the cardiopulmonary resuscitation feedback sensor function when the cardiopulmonary resuscitation guide is activated and to deactivate the internal high voltage discharge function when the electric shock output is deactivated. Claim 17 A battery status-based automatic defibrillator control system comprises: an automatic defibrillator; and an automatic defibrillator control system that checks the battery status of the automatic defibrillator, determines a battery level based on the battery status, and selectively controls the activation state of at least one of a plurality of functions including power-on self-diagnosis, electrocardiogram analysis, cardiopulmonary resuscitation guide, and electric shock output according to the battery level, wherein the battery status includes a remaining battery amount, and the automatic defibrillator control system distinguishes the battery level according to the remaining battery amount, wherein the determining step is to determine the battery level as a first low level if the remaining battery amount is less than a first threshold value and is greater than or equal to a second threshold value that is smaller than the first threshold value, and the automatic defibrillator control system disables the power-on self-diagnosis if the battery level is the first low level. Claim 18 A computer-readable recording medium having a program for executing the method of any one of paragraphs 9, 12 through 16 on a computer.

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