Automatic external defibrillator

Abstract

To reduce the number of indicators provided in an AED from the viewpoint of miniaturization and / or weight reduction of the AED while maintaining usability of the AED.SOLUTION: A battery configured to supply power to the AED, an indicator 30 configured to visually notify predetermined information related to the AED and a remaining battery level, and an indicator control unit configured to change a display mode of the indicator 30 according to the remaining battery level, wherein the indicator 30 includes a plurality of light emitting segments S1 to S4, each of the plurality of light emitting segments S1 to S4 includes at least one light emitting device, and the indicator control unit is configured to control turning on / off of the plurality of light emitting segments S1 to S4 according to a remaining battery level.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present disclosure relates to automated external defibrillators. [Background technology]

[0002] Automated external defibrillators (hereinafter referred to as AEDs), which restore cardiac function by delivering a strong electric shock for defibrillation to the heart of a patient who has suddenly suffered cardiac arrest due to ventricular fibrillation, are currently becoming increasingly popular. AEDs are equipped with a battery as a power source. To manage the remaining battery level, AEDs are provided with a dedicated indicator for displaying the remaining battery level (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2001-516122 Summary of the Invention [Problem to be solved by the invention]

[0004] With the rapid spread of AEDs, efforts are currently being made to reduce the size and weight of AEDs. Increasing the number of indicators provided on an AED to provide information improves the usability of the AED, but also increases the size and weight of the AED. Thus, there is room for consideration of reducing the number of indicators provided on an AED from the perspective of reducing the size and / or weight of the AED while maintaining its usability.

[0005] The present disclosure aims to reduce the number of indicators provided on an AED from the perspective of reducing the size and / or weight of the AED while maintaining the usability of the AED. [Means for solving the problem]

[0006] An automated external defibrillator according to one aspect of the present invention comprises: a battery configured to power an automated external defibrillator; an indicator configured to visually communicate predetermined information related to the automated external defibrillator and the remaining battery level; an indicator control unit configured to change a display mode of the indicator in accordance with the remaining amount level; Equipped with. [Effects of the Invention]

[0007] According to the present disclosure, the number of indicators provided on an AED can be reduced from the viewpoint of reducing the size and / or weight of the AED while maintaining the usability of the AED. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a front view of an automated external defibrillator (hereinafter, referred to as AED) according to an embodiment of the present invention (hereinafter, referred to as the present embodiment). [Figure 2] FIG. 1 is a block diagram showing the configuration of an AED. [Figure 3] FIG. 10 is a front view schematically showing an indicator mounted on the shock button. [Figure 4] 10 is a diagram illustrating how the display mode of the indicator changes depending on the remaining battery level. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments will be described with reference to the drawings. For the sake of convenience, the dimensions of each component shown in each drawing may differ from the actual dimensions of each component.

[0010] First, the configuration of an automated external defibrillator 1 (hereinafter referred to as AED1) will be described below with reference to Figures 1 to 3. Figure 1 is a front view of the AED1 according to this embodiment. Figure 2 is a block diagram showing the configuration of the AED1. Figure 3 is a front view schematically showing an indicator 30 mounted on the shock button 10c.

[0011] 2, the AED 1 includes an AED control unit 2, a high-voltage generation unit 3, an energy storage unit 4, a battery 6, a battery control unit 5, a memory unit 7, and an external communication unit 8. The AED 1 further includes an ECG processing circuit 12, an audio output unit 11, an operation unit 10, an indicator control unit 20, and an indicator 30.

[0012] The AED 1 is a medical device configured to deliver an electric shock to the heart of a patient who has suffered cardiac arrest due to ventricular fibrillation in order to restore cardiac function. The AED control unit 2 is configured to control each component provided in the AED 1. The AED control unit 2 is configured, for example, with a microcontroller including a processor and memory, and an integrated circuit such as an ASIC (Application Specific Integrated Circuit). The processor includes, for example, at least one of a CPU (Central Processing Unit), an MPU (Micro Processing Unit), and a GPU (Graphics Processing Unit). The memory includes a ROM (Read Only Memory) and a RAM (Random Access Memory).

[0013] The high-voltage generating unit 3 is configured to charge the energy storage unit 4 with electrical energy for administering a defibrillation shock to a patient (subject), and to discharge the electrical energy stored in the energy storage unit 4. The energy storage unit 4 is configured to store electrical energy for administering a defibrillation shock to a patient, and may be, for example, a high-voltage film capacitor made up of multiple dielectric films.

[0014] The battery 6 functions as a power source configured to supply power to each component of the AED 1, and is, for example, a lithium primary battery. The battery control unit 5 includes a circuit (e.g., a switching regulator or a series regulator) configured to convert the voltage of the battery 6 into a voltage required for each component of the AED 1. The battery control unit 5 is also configured to transmit a signal related to the remaining charge level of the battery 6 to the AED control unit 2. In this regard, the battery control unit 5 may transmit a signal indicating the voltage of the battery 6, a signal indicating the current value of the battery 6, or a signal indicating the impedance of the battery 6 to the AED control unit 2 as the signal related to the remaining charge level of the battery 6. The AED control unit 2 determines the remaining charge level of the battery 6 (between 0% and 100%) based on the signal related to the remaining charge level of the battery 6 transmitted from the battery control unit 5. Thereafter, the AED control unit 2 transmits an illumination control signal indicating the remaining charge level of the battery 6 to the indicator control unit 20. Here, when there is no remaining charge in the battery 6, the remaining charge level is 0%. When the battery 6 is fully charged, the remaining charge level is 100%. The remaining charge level of the battery 6 may not be expressed as a percentage, but may be expressed, for example, in five levels.

[0015] The storage unit 7 is configured to store various programs for operating the AED 1, audio data, and the patient's electrocardiogram data. The storage unit 7 is configured, for example, with a flash memory or a hard disk. The external communication unit 8 is configured to transmit the various data stored in the storage unit 7 to an external device or receive data from an external device. The external communication unit 8 may be an interface into which a connector of a wired cable such as a LAN cable is inserted, or may be a wireless communication module compatible with wireless communication standards such as Bluetooth (registered trademark) or Wifi (registered trademark). When the external communication unit 8 is a wireless communication module, it may have a transmitting / receiving antenna, a high-frequency circuit, and a signal processing circuit.

[0016] The ECG processing circuit 12 is configured to process electrocardiogram signals output from two defibrillation pads 13 attached to the patient. For example, the ECG processing circuit 12 may include a differential amplifier that generates electrocardiogram data by differentially amplifying the potential signal output from one of the two defibrillation pads 13 and the potential signal output from the other defibrillation pad 13, and an AD converter that converts the electrocardiogram data into digital data. The defibrillation pads 13 are detachably attached to the AED 1.

[0017] The audio output unit 11 is a speaker configured to output audio guidance and warning sounds related to the operation of the AED 1. The operation unit 10 is configured to accept operations from the operator. As shown in Fig. 1, the operation unit 10 includes a power button 10a for turning on the AED 1, a check button 10b for checking whether the AED 1 is ready for use, and a shock button 10c for administering a defibrillation electric shock to the patient.

[0018] The indicator control unit 20 is, for example, an analog control circuit configured to control the turning on and off of the indicator 30. In particular, the indicator control unit 20 is configured to control the turning on and off of the indicator 30 based on a lighting control signal transmitted from the AED control unit 2. For example, the indicator control unit 20 may be configured to receive from the AED control unit 2 a lighting control signal indicating the remaining charge level of the battery 6, and then change the display mode of the indicator 30 in accordance with the remaining charge level. Furthermore, the indicator control unit 20 may be configured to receive from the AED control unit 2 a lighting control signal indicating that the AED 1 is ready to administer an electric shock for defibrillation to a patient (subject), and then turn on the indicator 30 based on the lighting control signal. In this case, the indicator 30 can visually notify information (an example of predetermined information) indicating that the AED 1 is ready to administer an electric shock for defibrillation to a patient.

[0019] As shown in FIG. 1, the indicator 30 is mounted on the shock button 10c. In other words, the indicator 30 constitutes a part of the shock button 10c. The indicator 30 is configured to light up when the AED 1 is ready to administer an electric shock for defibrillation to the patient. By visually checking that the indicator 30 is lit, the operator of the AED 1 can recognize that the AED 1 is ready to administer an electric shock to the patient. Therefore, the operator is prompted by the illumination of the indicator 30 to press the shock button 10c.

[0020] Furthermore, the indicator 30 is configured to visually notify the outside of the remaining charge level of the battery 6 when the AED 1 is powered on. In this regard, the indicator 30 is configured to change the display mode depending on the remaining charge level of the battery 6.

[0021] As shown in FIG. 3, the indicator 30 has a transparent cover 32 that transmits visible light. The transparent cover 32 forms the surface of the shock button 10c that the operator touches. The surface of the transparent cover 32 may be formed with minute diffusion steps that diffuse the light emitted from the light-emitting elements 33a to 33d. The indicator 30 has four light-emitting segments S1 to S4 that are partitioned along its circumferential direction. Each of the light-emitting segments S1 to S4 has a 90° angular region starting from the center point P of the indicator 30. The light-emitting segment S1 has two light-emitting elements 33a. The light-emitting segment S2 is adjacent to the light-emitting segments S1 and S3 and has two light-emitting elements 33b. The light-emitting segment S3 is adjacent to the light-emitting segments S2 and S4 and has two light-emitting elements 33c. The light-emitting segment S4 is adjacent to the light-emitting segments S1 and S3 and has two light-emitting elements 33d. The light emitting elements 33a to 33d are, for example, semiconductor light emitting elements such as LEDs (Light Emitting Diodes). The indicator control unit 20 controls the turning on and off of each of the light emitting elements 33a to 33d.

[0022] (Indicator display according to remaining battery level) Next, referring to Fig. 4, a description will be given below of a change in the display mode of the indicator 30 according to the remaining level of the battery 6. Fig. 4 is a diagram for explaining that the display mode of the indicator 30 is changed according to the remaining level of the battery 6. In the following description, it is assumed that the indicator control unit 20 receives a lighting control signal indicating the remaining level of the battery 6 from the AED control unit 2 after the AED 1 is powered on and before the remaining level of the battery 6 is visually notified.

[0023] (Battery level: 75% or more) First, the display mode of the indicator 30 when the remaining charge level of the battery 6 is 75% or higher will be described. As shown in FIG. 4, when the AED 1 is powered on through the operator's operation of the power button 10a (see FIG. 1), all of the light-emitting segments S1 to S4 of the indicator 30 light up to check the operation of the indicator 30, and then all of the light-emitting segments S1 to S4 are turned off. Next, to notify the operator of the remaining charge level of the battery 6, the indicator control unit 20 turns on the light-emitting segment S1 (two light-emitting elements 33a) in a first stage. Next, in a second stage, the indicator control unit 20 turns on the light-emitting segment S2 (two light-emitting elements 33b) in addition to the light-emitting segment S1. In a third stage, the indicator control unit 20 turns on the light-emitting segment S3 (two light-emitting elements 33c) in addition to the light-emitting segments S1 and S2. In a fourth stage, the indicator control unit 20 turns on the light-emitting segment S4 (two light-emitting elements 33d) in addition to the light-emitting segments S1 to S3. In the final stage, the indicator control unit 20 turns off all of the light emitting segments S1 to S4. In this way, when the remaining charge level of the battery 6 is 75% or more, the indicator control unit 20 sequentially turns on the four light emitting segments S1 to S4. The period from the first stage to the final stage is, for example, one second.

[0024] (Battery level: 50%-75%) Next, the display mode of the indicator 30 when the remaining charge level of the battery 6 is equal to or greater than 50% and less than 75% will be described. As shown in FIG. 4, when the AED 1 is powered on, all of the light-emitting segments S1 to S4 of the indicator 30 light up to check the operation of the indicator 30, and then all of the light-emitting segments S1 to S4 are turned off. Next, to notify the operator of the remaining charge level of the battery 6, the indicator control unit 20 turns on the light-emitting segment S1 in a first stage. In a second stage, the indicator control unit 20 turns on the light-emitting segment S2 in addition to the light-emitting segment S1. In a third stage, the indicator control unit 20 turns on the light-emitting segment S3 in addition to the light-emitting segments S1 and S2. In a final stage, the indicator control unit 20 turns off the three light-emitting segments S1 to S3. In this way, when the remaining charge level of the battery 6 is equal to or greater than 50% and less than 75%, the indicator control unit 20 sequentially turns on the three light-emitting segments S1 to S3.

[0025] (Battery level: 25%-50%) Next, the display mode of the indicator 30 when the remaining charge level of the battery 6 is equal to or greater than 25% and less than 50% will be described. As shown in FIG. 4, when the AED 1 is powered on, all of the light-emitting segments S1 to S4 of the indicator 30 light up to check the operation of the indicator 30, and then all of the light-emitting segments S1 to S4 are turned off. Next, to notify the operator of the remaining charge level of the battery 6, the indicator control unit 20 turns on the light-emitting segment S1 in a first stage. In a second stage, the indicator control unit 20 turns on the light-emitting segment S2 in addition to the light-emitting segment S1. In a final stage, the indicator control unit 20 turns off the two light-emitting segments S1 and S2. In this way, when the remaining charge level of the battery 6 is equal to or greater than 25% and less than 50%, the indicator control unit 20 turns on the two light-emitting segments S1 and S2 sequentially.

[0026] (Battery level: 5%-25%) Next, the display mode of the indicator 30 when the remaining charge level of the battery 6 is equal to or greater than 5% and less than 25% will be described. As shown in Fig. 4, when the AED 1 is powered on, all of the light-emitting segments S1 to S4 of the indicator 30 light up to check the operation of the indicator 30, and then all of the light-emitting segments S1 to S4 are turned off. Next, to notify the operator of the remaining charge level of the battery 6, the indicator control unit 20 turns on the light-emitting segment S1 and then turns it off. In this way, when the remaining charge level of the battery 6 is equal to or greater than 5% and less than 25%, the indicator control unit 20 turns on only one light-emitting segment S1.

[0027] (Battery level: less than 5%) Next, the display mode of the indicator 30 when the remaining charge level of the battery 6 is less than 5% will be described. As shown in Fig. 4, when the AED 1 is powered on, all of the light-emitting segments S1 to S4 of the indicator 30 light up to check the operation of the indicator 30, and then all of the light-emitting segments S1 to S4 are turned off. Next, to notify the operator of the remaining charge level of the battery 6, the indicator control unit 20 does not light up any of the light-emitting segments S1 to S4. In this way, when the remaining charge level of the battery 6 is less than 5%, the indicator control unit 20 does not light up any of the light-emitting segments S1 to S4.

[0028] As described above, according to this embodiment, the indicator 30 is configured to visually notify both information indicating that the AED 1 is ready to deliver a defibrillation shock to a patient and information indicating the remaining charge level of the battery 6. In this way, since there is no need to provide the AED 1 with a dedicated indicator for visually notifying only the remaining charge level of the battery 6, it is possible to reduce the number of indicators 30 provided on the AED 1 from the viewpoint of reducing the size and / or weight of the AED 1 while maintaining the usability of the AED 1. Furthermore, since the remaining charge level of the battery 6 is notified by the indicator 30 when the AED 1 is turned on, the operator of the AED 1 can easily be aware of the remaining charge level of the battery 6. In particular, the operator can grasp the remaining charge level of the battery 6 before use, which allows for more reliable use of the AED 1.

[0029] In this embodiment, the indicator control unit 20 is configured to increase the number of light-emitting segments that are sequentially lit over a predetermined period (e.g., one second) as the remaining charge level of the battery 6 increases. Specifically, when the remaining charge level is 75% or higher, four light-emitting segments are sequentially lit. When the remaining charge level is 50% or higher but less than 75%, three light-emitting segments are sequentially lit. When the remaining charge level is 25% or higher but less than 50%, two light-emitting segments are sequentially lit. When the remaining charge level is 5% or higher but less than 25%, only one light-emitting segment is lit. When the remaining charge level is less than 5%, no light-emitting segments are lit.

[0030] In this way, the operator of the AED 1 can intuitively grasp the remaining level of the battery 6 by visually checking the number of light emitting segments S1 to S4 that are sequentially lit along the circumferential direction of the indicator 30.

[0031] Furthermore, in this embodiment, the indicator control unit 20 turns on all of the light-emitting segments S1 to S4 after the AED 1 is powered on and before the indicator 30 visually notifies the user of the remaining charge level of the battery 6. Therefore, by visually checking that all of the light-emitting segments S1 to S4 are lit, the operator can recognize that each of the light-emitting segments S1 to S4 is operating normally. In this respect, the operator can recognize that the indicator 30 is able to correctly notify the user of the remaining charge level of the battery 6 through the lighting of all of the light-emitting segments S1 to S4.

[0032] In addition, in this embodiment, the indicator 30 is mounted on the shock button 10c. In other words, the indicator 30 and the shock button 10c are integrally configured, which makes it possible to reduce the size and weight of the AED 1. Furthermore, the operator is guided to press the shock button 10c by the illumination of the indicator 30, so that the operator can reliably press the shock button 10c.

[0033] Although the embodiments of the present invention have been described above, the technical scope of the present invention should not be construed as being limited by the description of the present embodiments. The present embodiments are merely examples, and it will be understood by those skilled in the art that various modifications of the embodiments are possible within the scope of the invention described in the claims. The technical scope of the present invention should be determined based on the scope of the invention described in the claims and its equivalents.

[0034] In this embodiment, the indicator control unit 20 sequentially lights up the light emitting segments according to the remaining charge level of the battery 6, but this embodiment is not limited to this. For example, the indicator control unit 20 may change the number of light emitting segments that are simultaneously lit according to the remaining charge level of the battery 6.

[0035] For example, when the remaining charge level of the battery 6 is 75% or more, the indicator control unit 20 may simultaneously light up four light-emitting segments S1 to S4 and then turn off the four light-emitting segments S1 to S4 to notify the outside of the remaining charge level of the battery 6. When the remaining charge level of the battery 6 is 50% or more but less than 75%, the indicator control unit 20 may simultaneously light up three light-emitting segments S1 to S3 and then turn off the three light-emitting segments S1 to S3 to notify the outside of the remaining charge level of the battery 6. When the remaining charge level of the battery 6 is 25% or more but less than 50%, the indicator control unit 20 may simultaneously light up two light-emitting segments S1 and S2 and then turn off the two light-emitting segments S1 and S2 to notify the outside of the remaining charge level of the battery 6.

[0036] Furthermore, the indicator control unit 20 increases the number of light emitting segments that are sequentially lit as the remaining charge level of the battery 6 increases, but this embodiment is not limited to this. For example, the indicator control unit 20 may decrease the number of light emitting segments that are sequentially lit as the remaining charge level of the battery 6 increases.

[0037] In this case, if the remaining charge level is 75% or higher, no illuminated segments will light. If the remaining charge level is between 50% and 75%, one illuminated segment will light in sequence. If the remaining charge level is between 25% and 50%, two illuminated segments will light in sequence. If the remaining charge level is between 5% and 25%, only three illuminated segments will light. If the remaining charge level is less than 5%, four illuminated segments will light in sequence.

[0038] Furthermore, although the indicator control unit 20 increases the number of light-emitting segments that are sequentially lit in each stage, this embodiment is not limited to this. For example, the indicator control unit 20 may decrease the number of light-emitting segments that are sequentially lit in each stage.

[0039] For example, let us consider a case where the remaining charge level of the battery 6 is 75% or more. In this case, in the first stage, all light-emitting segments S1 to S4 are lit. Next, in the second stage, light-emitting segments S1 to S3 are lit. In the third stage, light-emitting segments S1 and S2 are lit. In the fourth stage, light-emitting segment S1 is lit. In the final stage, all light-emitting segments are turned off.

[0040] Furthermore, the indicator control unit 20 may change the position of the light emitting segment to be lit at each stage.

[0041] For example, let us consider a case where the remaining charge level of the battery 6 is 75% or more. In this case, in the first stage, the light-emitting segment S1 lights up and then goes out. Next, in the second stage, the light-emitting segment S2 lights up and then goes out. In the third stage, the light-emitting segment S3 lights up and then goes out. In the fourth stage, the light-emitting segment S4 lights up and then goes out. In the final stage, all the light-emitting segments go out. In this way, the positions of the light-emitting segments that light up may be changed in each stage.

[0042] In addition, the indicator control unit 20 changes the number of light-emitting segments S1 to S4 to be sequentially lit (i.e., the lighting area of ​​the indicator 30) as an example of the display mode of the indicator 30 depending on the remaining charge level of the battery 6, but this embodiment is not limited to this.

[0043] For example, the indicator control unit 20 may change the lighting duration, brightness, number of flashes, or lighting color of the indicator 30 as the display mode of the indicator 30 according to the remaining charge level of the battery 6. Specifically, the lighting duration of the indicator 30 after the power is turned on may become longer as the remaining charge level of the battery 6 increases. Furthermore, the light emitted from the indicator 30 may become brighter as the remaining charge level of the battery 6 increases. Furthermore, the number of flashes of the indicator 30 may increase as the remaining charge level of the battery 6 increases. Furthermore, the indicator 30 may emit light of different colors to the outside according to the remaining charge level of the battery 6. In this case, three light-emitting elements (red LED, blue LED, and green LED) may be arranged in each of the light-emitting segments S1 to S4.

[0044] In addition, in this embodiment, the indicator 30 visually notifies the remaining level of the battery 6 when the AED 1 is powered on, but this embodiment is not limited to this. For example, the indicator 30 may visually notify the remaining level of the battery 6 at predetermined time intervals (for example, every hour). Furthermore, the indicator 30 may visually notify the remaining level of the battery 6 when the check button 10b is operated by the operator. Furthermore, the indicator 30 may visually notify the remaining level of the battery 6 when the AED 1 is powered off or when the battery 6 is attached to the AED 1.

[0045] In addition, in this embodiment, the indicator 30 is mounted on the shock button 10c, but this embodiment is not limited to this. For example, the indicator 30 may be mounted on the power button 10a or the check button 10b. In this case, the transparent cover of the indicator 30 forms the surface of the power button or the check button. Furthermore, the above-mentioned remaining battery level notification mechanism may be incorporated into other indicators (not shown, for example, indicators for notifying of any error).

[0046] For example, when the indicator 30 is mounted on the check button 10b, the indicator 30 can visually notify both information indicating that the AED 1 is performing a self-check and the remaining charge level of the battery 6. In particular, by flashing each light emitting segment of the indicator 30, information indicating that the AED 1 is performing a self-check (an example of predetermined information) is presented to the outside.

[0047] In addition, in this embodiment, two light-emitting elements are provided in each light-emitting segment, but the number of light-emitting elements provided in each light-emitting segment is not particularly limited. For example, each light-emitting segment may be provided with one light-emitting element or three or more light-emitting elements. In addition, although the indicator 30 is divided into four light-emitting segments S1 to S4, the number of light-emitting segments into which the indicator 30 is divided is not particularly limited. Furthermore, in this embodiment, the remaining charge level of the battery 6 is divided into five levels, but the number of divisions into which the remaining charge level of the battery 6 is divided is not particularly limited. For example, the remaining charge level of the battery 6 may be divided into six or more levels. For example, if the remaining charge level of the battery 6 is divided into ten levels, the operator will be able to grasp the remaining charge level of the battery 6 in 10% increments. [Explanation of symbols]

[0048] 1:AED (automated external defibrillator) 2: AED control unit 3: High voltage generator 4: Energy storage unit 5: Battery control unit 6: Battery 7: Storage part 8: External communication department 10:Operation unit 10a: Power button 10b: Check button 10c: Shock button 11: Audio output section 12: ECG processing circuit 13: Defibrillator pads 20: Indicator control unit 30: Indicator 32: Transparent cover 33a, 33b, 33c, 33d: Light-emitting elements

Claims

1. a battery configured to power an automated external defibrillator; an indicator configured to visually communicate predetermined information related to the automated external defibrillator and the remaining battery level; an indicator control unit configured to change a display mode of the indicator in accordance with the remaining amount level; Equipped with the indicator has a plurality of light-emitting segments; Each of the plurality of light emitting segments has at least one light emitting element; the indicator control unit is configured to control turning on and off of the plurality of light emitting segments in accordance with the remaining amount level; The indicator control unit an automatic external defibrillator configured to illuminate all of the plurality of light-emitting segments after the automatic external defibrillator is powered on and before the indicator visually notifies the remaining charge level.

2. the indicator is configured to visually indicate the remaining charge level when the automated external defibrillator is powered on.

10. The automated external defibrillator of claim 1.

3. The predetermined information is information indicating that the automated external defibrillator is ready to administer a defibrillation electric shock to a subject, the indicator control unit is configured to illuminate the indicator when the automated external defibrillator is ready to deliver the electric shock to the subject.

3. The automatic external defibrillator according to claim 1 or 2.

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