Fine motor
The defibrillator addresses the lack of intuitive operation indication by changing electrocardiogram waveform colors based on operating modes, enabling clear operation recognition.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- FUKUDA DENSHI CO LTD
- Filing Date
- 2026-03-12
- Publication Date
- 2026-05-19
AI Technical Summary
Conventional defibrillators lack intuitive visual cues to indicate which operation is being executed, as the electrocardiogram waveform remains a single color regardless of button presses.
The defibrillator incorporates control elements that change color based on the operating mode, displaying an electrocardiogram waveform with colors corresponding to asynchronous, synchronous, pacing, and AED modes, and includes a processor to manage these changes.
This implementation allows operators to intuitively understand which operation is being performed by visually distinguishing the electrocardiogram waveform colors, enhancing operational clarity.
Smart Images
Figure 2026083356000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a defibrillator.
Background Art
[0002] A defibrillator used in medical treatment is a device that gives an electric shock to a patient whose heart is in fibrillation to perform cardiopulmonary resuscitation (CPR). Patent Document 1 discloses a defibrillator provided with a display unit for displaying an electrocardiogram (ECG) waveform. The defibrillator disclosed in Patent Document 1 analyzes the waveform of the electrocardiogram detected by defibrillation pads attached to a patient and displays the analysis result on the display unit as an electrocardiogram waveform. Further, the defibrillator disclosed in Patent Document 1 includes a plurality of buttons for performing various operations, for example, a button for executing an electric shock, a button for canceling the synchronous mode, and the like.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] However, in the conventional defibrillator disclosed in Patent Document 1, no matter which of the plurality of buttons is pressed, a single-color electrocardiogram waveform continues to be displayed. Therefore, it is difficult to intuitively grasp which operation the executed operation corresponds to just by looking at the electrocardiogram waveform. Therefore, there remained a problem regarding how to notify the operator of which operation the executed operation corresponds to.
[0005] An object of the present invention is to provide a defibrillator that can notify that an operation corresponding to an operation is being executed. [Means for solving the problem]
[0006] The defibrillator of the present invention comprises a plurality of control elements that can receive an operation and instruct an operating mode, a display processing unit that displays an electrocardiogram waveform on a display unit, and a changing unit that changes the color of the control elements to a color corresponding to the set operating mode, wherein the operating mode includes at least two of the following: an asynchronous mode that delivers an electric shock regardless of the timing of the QRS wave of the electrocardiogram, a synchronous mode that delivers an electric shock in synchronization with the QRS wave, a pacing mode that delivers a pacing pulse to the heart, and an AED mode.
[0007] The device comprises an operator that accepts input and can specify an operating mode, a display processing unit that displays an electrocardiogram waveform and an icon representing the operating mode selected by the operator on a display unit, and a change unit that changes the color of the icon to a color corresponding to the set mode, wherein the operating mode includes at least two of the following: an asynchronous mode that delivers an electric shock regardless of the timing of the QRS wave of the electrocardiogram, a synchronous mode that delivers an electric shock in synchronization with the QRS wave, a pacing mode that delivers a pacing pulse to the heart, and an AED mode. [Effects of the Invention]
[0008] According to the present invention, a defibrillator can be made to indicate that an action corresponding to the operation is being performed. [Brief explanation of the drawing]
[0009] [Figure 1] External view of a defibrillator according to an embodiment of the present invention [Figure 2] Diagram showing an example of the hardware configuration of defibrillator 100. [Figure 3A] Diagram showing an example of the functional configuration of defibrillator 100 [Figure 3B] A diagram showing an example of the settings screen for defibrillator 100. [Figure 4] Flowchart for explaining the operation of defibrillator 100 [Figure 5]A diagram showing an example of an electrocardiogram waveform. [Modes for carrying out the invention]
[0010] Embodiments of the present invention will now be described in detail with reference to the drawings. Figure 1 is an external view of a defibrillator according to an embodiment of the present disclosure. The defibrillator 100 includes various operation buttons such as a charging button 1, a shock button 2, a setting dial 3, and a synchronization button 10, and a display unit 4. Although not shown, the defibrillator 100 also includes a battery, a boost circuit, a calculation circuit, a control circuit, etc. The various operation buttons constitute an input unit, which will be described later. The charging button 1, the shock button 2, the setting dial 3, and the synchronization button 10 are each examples of the controls of the present invention.
[0011] The charge button 1 is used to start charging the energy set in manual mode. The shock button 2 is used to deliver an electric shock using the defibrillation pads. The setting dial 3 is used to switch between pacing mode, monitor mode, AED (Automated External Defibrillator) mode, and to select the output energy value in manual mode.
[0012] The charging button 1, shock button 2, and sync button 10 are painted in different colors, or are configured to emit light in different colors. Specifically, charging button 1 is yellow-green, shock button 2 is red, and sync button 10 is yellow. In addition to these buttons, other modes such as pacing mode and AED mode may be provided as selectable modes using the setting dial 3, and the names of these modes may be displayed around the setting dial 3 in different colors. In this case, pacing mode may be blue, and AED mode may be white.
[0013] The sync button 10 is a button that switches to asynchronous mode by disabling sync mode. In other words, the sync button 10 is a button for switching from asynchronous mode to sync mode. Synchronized mode is a mode in which, when an electric shock is administered manually, an electric shock is administered in sync with the QRS wave of the electrocardiogram. In sync mode, while the shock button is pressed and held down after the energy charge is complete, a synchronous electric shock is administered at the timing when a QRS wave is detected. Note that when the defibrillator 100 is activated, sync mode is disabled, i.e., asynchronous mode is set, so you can switch to sync mode by pressing the sync button 10. Asynchronous mode is a mode in which, when an electric shock is administered manually, an electric shock is administered regardless of the timing of the QRS wave of the electrocardiogram.
[0014] Next, an example of the hardware configuration of the defibrillator 100 will be described with reference to Figure 2. Figure 2 is a diagram showing an example of the hardware configuration of the defibrillator 100. The defibrillator 100 has a display unit 4, a processor 5, a receiving interface 6, a storage unit 7, and an input unit 8. The display unit 4, processor 5, receiving interface 6, storage unit 7, and input unit 8 are connected to each other via a bus 9.
[0015] The receiving interface 6 is an interface for connecting, for example, a defibrillation pad (not shown) that measures an electrocardiogram signal to the defibrillator 100.
[0016] The memory unit 7 is a hard disk drive, a semiconductor memory device, etc., and stores the calculation results performed by the processor 5, programs related to the functions that the processor 5 is instructed to perform, and so on.
[0017] The input unit 8 is a user interface that accepts operations from the operator and includes a setting dial 3, various operation buttons, etc. The input unit 8 generates a signal to operate the defibrillator 100 according to the content of the operation to the input unit 8 and transmits it to the processor 5.
[0018] The display unit 4 has functions such as displaying various types of information such as electrocardiogram waveforms, and generating signals corresponding to touch operations by the operator and transmitting them to the processor 5.
[0019] By executing a predetermined program, the processor 5 realizes various functions related to the defibrillator 100.
[0020] Also, when the synchronization button 10 is pressed, the processor 5 notifies the operator that the mode has shifted from the asynchronous mode to the synchronous mode by causing the display unit 4 to display the character "synchronization". The synchronous mode is a mode in which, when manually performing an electric shock, an electric shock synchronized with the QRS wave of the electrocardiogram is executed. In the synchronous mode, while the shock button 2 is being long-pressed in a state where the energy charging is complete, a synchronous electric shock is executed at the timing when the QRS wave is detected. The asynchronous mode is a mode in which, when manually performing an electric shock, an electric shock is executed regardless of the timing of the QRS wave of the electrocardiogram.
[0021] Also, when the pacing mode is selected, the processor 5 generates a pacing pulse from the defibrillation pads. The pacing mode is a mode in which the defibrillator 100 is operated with a temporary transcutaneous pacing function. Temporary transcutaneous pacing is a function of causing the heart to beat normally by transmitting a pacing pulse from the defibrillation pads attached to the patient's body surface to the heart. The pacing mode includes a demand mode and a fixed mode. The demand mode is a mode in which a pacing pulse is output when the rate of the patient's own heartbeat is lower than the set pacing rate. The fixed mode is a mode in which a pacing pulse is output at the set pacing rate regardless of the rate of the patient's own heartbeat.
[0022] Also, the processor 5 analyzes the electrocardiogram of a patient in a fibrillation state for a predetermined period, determines whether an electric shock is necessary, and if it is determined that defibrillation is necessary, generates an electric shock for defibrillation to defibrillation pads (not shown) at an appropriate timing.
[0023] In this case, if the ECG waveform remains a single color without changing color even though one of the aforementioned buttons (charging button 1, shock button 2, sync button 10, etc.) is pressed, it is difficult to intuitively understand which operation corresponds to which action being performed simply by looking at the ECG waveform. Therefore, it is desirable to clearly communicate to the operator which operation corresponds to which action being performed.
[0024] In view of the above, the defibrillator 100 according to an embodiment of the present invention has the following functions. These functions will be specifically described with reference to Figures 3A and 3B.
[0025] Figure 3A shows an example of the functional configuration of the defibrillator 100, and Figure 3B shows an example of the settings screen for the defibrillator 100.
[0026] As shown in Figure 3A, the processor 5 includes a display processing unit 51, an analysis unit 52, a determination unit 53, a modification unit 54, and a setting unit 55.
[0027] The display processing unit 51 displays the electrocardiogram waveform measured from the patient on the display unit 4 in real time. When displaying the electrocardiogram waveform on the display unit 4, the display processing unit 51 displays the electrocardiogram waveform corresponding to the color set in the setting unit 55. Details of the setting unit 55 will be described later.
[0028] The analysis unit 52 analyzes the measured electrocardiogram (ECG) to determine whether defibrillation by electric shock is necessary, for example, when the AED mode is set. This analysis may take several seconds. If CPR is performed while the ECG is being analyzed, noise from chest compressions may be introduced into the ECG, making it impossible to analyze the ECG correctly. Therefore, CPR must be interrupted during ECG analysis, but clinically, the interruption time should be kept as short as possible to prevent cerebral ischemia and improve the resuscitation rate. Various guidelines on cardiac resuscitation recommend interrupting CPR for no more than 10 seconds.
[0029] The determination unit 53 determines whether or not to deliver an electric shock to the patient based on the results of the electrocardiogram analysis performed by the analysis unit 52. The method for determining whether or not to deliver an electric shock is publicly known, so its explanation is omitted.
[0030] The determination unit 53 also determines the color corresponding to each of the buttons that have been operated. For example, if the shock button 2 is operated, it refers to the information in the table set in the setting unit 55. The table associates information identifying the type of each of the buttons with information identifying the color set for each of the buttons, and by referring to this table, the determination unit 53 determines that the color corresponding to the operated shock button 2 is red.
[0031] The modification unit 54 changes the color of the electrocardiogram waveform to the color corresponding to each of the multiple buttons based on the result of the determination unit 53. For example, if the shock button 2 is operated, the determination unit 53 determines it to be red. If the color of the electrocardiogram waveform before the shock button 2 is operated is green, the modification unit 54 sends instruction information to the display processing unit 51 to change the color of the electrocardiogram waveform from green to red. Upon receiving the instruction information, the display processing unit 51 changes the color of the electrocardiogram waveform from green to red.
[0032] The setting unit 55 displays a setting screen 41 (see Figure 3B) on the display unit 4 for setting the color of the electrocardiogram waveform, the brightness of the electrocardiogram waveform, and so on. To give a specific example of the setting screen 41, the setting unit 55 displays the setting screen 41 on the display unit 4 and further displays an area A1 on the setting screen 41 where multiple setting buttons for selecting the color of the electrocardiogram (ECG) waveform are arranged, an area A2 for setting the brightness of the electrocardiogram waveform, and so on.
[0033] The settings buttons in area A1 include buttons for setting the color of the electrocardiogram waveform, such as "Normal," "Synchronized," "AED," and "Pacing."
[0034] The "Normal" button sets the color of the electrocardiogram waveform when synchronization mode, AED mode, pacing mode, etc., are not set. It can also set the color of the electrocardiogram waveform displayed when asynchronous mode is set, and the color of the electrocardiogram waveform displayed after synchronization mode is deactivated.
[0035] The "Sync" button sets the color of the electrocardiogram waveform when sync mode is enabled.
[0036] The "AED" button sets the color of the electrocardiogram waveform when AED mode is selected. AED mode automatically performs electrocardiogram analysis, determines whether an electric shock is necessary, selects the energy value, and charges the energy, and then delivers the electric shock manually or automatically.
[0037] The "Pacing" button sets the color of the electrocardiogram waveform when pacing is initiated.
[0038] By pressing these setting buttons, the operator can select a color, such as green, yellow, white, or blue, that is set for the shock button 2, etc. The setting unit 55 sets the color selected by the operator as the color of the electrocardiogram waveform in each of the above modes.
[0039] Next, the operation of the defibrillator 100 will be explained with reference to Figures 4 and 5. Figure 4 is a flowchart illustrating the operation of the defibrillator 100, and Figure 5 is a diagram showing an example of an electrocardiogram waveform. In Figure 5, the horizontal direction represents time, and the vertical direction represents the amplitude of the electrocardiogram waveform.
[0040] Figure 5 shows the electrocardiogram waveforms before and after the shock button 2 is operated. Time t1 is when the shock button 2 is operated. The color of the electrocardiogram waveform before time t1 is green, for example, when set to asynchronous mode, and the color of the electrocardiogram waveform after time t1 is red.
[0041] (Operation of Defibrillator 100) When the defibrillator 100 is activated and electrocardiogram measurement begins (step S1), an electrocardiogram waveform in a color corresponding to asynchronous mode (green), for example, is displayed on the display unit 4 (step S2).
[0042] Subsequently, the determination unit 53 determines whether or not any button has been pressed (step S3). The process in step S3 is repeated until any button is pressed (step S3, NO). If, for example, the shock button 2 is pressed (step S3, YES), the modification unit 54 changes the color of the electrocardiogram waveform to a color different from green (red) (step S4).
[0043] In this way, by displaying an electrocardiogram waveform in a color corresponding to the type of button pressed, it is possible to intuitively understand which operation is being performed.
[0044] In addition to changing the color, the modification unit 54 may also change at least one of the brightness, thickness, or line type of the electrocardiogram waveform to correspond to the type of button. This makes the difference in the electrocardiogram waveform before and after each button is operated clearer, allowing the operator to more easily understand which operation corresponds to which action. The determination unit 53 may be configured to determine not only the button that accepts operation, but also the color corresponding to the setting of the setting dial 3. Furthermore, the modification unit 54 may be configured to change the color of the control element to a color corresponding to the mode set in the defibrillator 100. For example, when the setting dial 3 is operated and "pacing mode" is selected, the color of the icon for "pacing mode," which is the selection of the setting dial 3, is changed from the color at power-on (e.g., white) to the color associated with the table information (e.g., blue) by referring to table information that associates mode types with color types. In this way, the color of the control element such as the setting dial 3, or the color of the icon that the control element selects, is changed to a color corresponding to various operating modes, allowing the operator to easily understand which operating mode corresponds to which action is being performed.
[0045] Furthermore, it is understood that, for example, the following embodiments also fall within the technical scope of the present invention.
[0046] (1) A defibrillator according to an embodiment of the present invention comprises a plurality of operators that receive operations, a display processing unit that displays an electrocardiogram waveform on a display unit, a determination unit that determines the color corresponding to each of the plurality of operators that has been operated, and a modification unit that changes the color of the electrocardiogram waveform to the color corresponding to each of the plurality of operators based on the result of the determination.
[0047] (2) In addition to changing the color, the modified part changes at least one of the brightness, thickness, and line type of the electrocardiogram waveform.
[0048] (3) The modified part further changes the color of the control element to a color corresponding to the mode set on the defibrillator.
[0049] (4) The waveform display method according to an embodiment of the present invention is performed by a defibrillator having the steps of: displaying an electrocardiogram waveform on a display unit; determining the color corresponding to each of the multiple controls that have been operated when an operation of each of the multiple controls that accepts operation is received; and changing the color of the electrocardiogram waveform to the color corresponding to each of the multiple controls based on the result of the determination.
[0050] The embodiments disclosed herein should be considered in all respects to be illustrative and not restrictive. The scope of the present invention is indicated by the claims rather than the foregoing description and is intended to include all modifications within the meaning and scope of the claims, including equivalents.
[0051] Embodiments of the present invention have been described above. It should be noted that the above description illustrates preferred embodiments of the present invention, and the scope of the present invention is not limited thereto. In other words, the description of the configuration of the apparatus and the shape of each part is merely an example, and it is clear that various modifications and additions to these examples are possible within the scope of the present invention. [Explanation of symbols]
[0052] 1. Charging button 2 Shock Buttons 3. Setting dial 4 Display section 5 processors 6. Receiving Interface 7 Memory section 8 Input section 9 buses 10 Sync button 41 Settings screen 51 Display Processing Unit 52 Analysis Department 53 Judgment section 54 Changes 55 Setting section 100 Defibrillator A1 area A2 area P1 Period 1 P2 Second Period
Claims
1. Multiple control elements that can receive commands and specify the operating mode, A display processing unit that displays the electrocardiogram waveform on the display unit, The system includes a change unit that changes the color of the control element to a color corresponding to the set operating mode, The aforementioned operating modes include at least two of the following: an asynchronous mode that delivers an electric shock regardless of the timing of the QRS wave in the electrocardiogram; a synchronous mode that delivers an electric shock in synchronization with the QRS wave; a pacing mode that delivers a pacing pulse to the heart; and an AED mode. Defibrillator.
2. A control element that can accept commands and specify the operating mode, A display processing unit that displays an electrocardiogram waveform and an icon representing the operating mode of the selected control on the display unit, The system includes a modification unit that changes the color of the aforementioned icon to a color corresponding to the set mode, The aforementioned operating modes include at least two of the following: an asynchronous mode that delivers an electric shock regardless of the timing of the QRS wave in the electrocardiogram; a synchronous mode that delivers an electric shock in synchronization with the QRS wave; a pacing mode that delivers a pacing pulse to the heart; and an AED mode. Defibrillator.
3. The system further includes a determination unit that determines the color corresponding to the manipulated operator, Based on the result of the determination, the modification unit changes the color of the electrocardiogram waveform to the color corresponding to the operated control. A defibrillator according to claim 1 or 2.