KR101383051B1 - Fully-automated cardiopulmonary resuscitation apparatus - Google Patents

Abstract

A fully automatic cardiopulmonary resuscitation device is disclosed. Fully automatic cardiopulmonary resuscitation device according to the present invention, the patient is formed to lie down; A rib cage that is connected to the pedestal and surrounds the rib cage of the patient; Length adjusting unit for adjusting the length of the rib cage so that the rib cage tightens the rib cage of the patient; A heart sound sensor mounted on a chest band to measure heart sound; Tension sensor for measuring the change in the tension of the chest band to determine whether the patient breathing; An electrocardiogram electrode mounted on the chest band and measuring an electrocardiogram waveform of the patient; A compression unit mounted on the rib cage to compress the sternum of the patient; A defibrillator mounted on a chest band and including a defibrillation control unit mounted to the left electrode pad and the right electrode pad to transmit an electric shock to the patient, and installed on the pedestal or compression unit to control the electric shock transmitted to the left electrode pad and the right electrode pad; And a central control unit for controlling the compression unit when the cardiopulmonary arrest is detected by the heart sound sensor and the tension sensor, and controlling the defibrillator when the ventricular fibrillation is detected by the electrocardiogram electrode. According to the present invention, since the compression unit for cardiopulmonary resuscitation and the defibrillator for defibrillation are connected together in the chest band tightening the rib cage, the use of the defibrillator can be used in emergency rescue without having to stop the use of the defibrillator.

Description

Fully-automated cardiopulmonary resuscitation apparatus

The present invention relates to a device that can be used for cardiopulmonary resuscitation and defibrillation, and more particularly, to a fully automatic cardiopulmonary resuscitation device that can be performed together with CPR and defibrillation as one device to perform CPR and defibrillation will be.

Basic life support for resuscitating a person with cardiopulmonary arrest involves chest compression for emergency perfusion and artificial respiration for emergency oxygenation. Cardiopulmonary resuscitation, which provides ventilation or rescue breathing, and defibrillation for ventricular fibrillation. That is, basic resuscitation is a treatment process for resuscitation of a person who has cardiopulmonary arrest by performing CPR and defibrillation.

In general, in order to rescue a person who has cardiopulmonary arrest, a rescuer uses a bag designed for chest compressions and expired air or artificial respiration of the cardiopulmonary arrest patient. Cardiopulmonary resuscitation is performed to provide used resuscitation. Recently, various types of cardiopulmonary resuscitation (CPR) and a manual or automatic defibrillator for defibrillation that can provide artificial circulation in place of the pressure of the rescuer have been developed and used for the treatment of cardiopulmonary arrest patients.

Examples of such CPR devices include Korean Registered Patent No. 0270596 " Cardiopulmonary Resuscitation Apparatus " and 0517298 " Patient Transfer Device Combined With Cardiopulmonary Resuscitation " filed and registered by the inventor of the present application. No. 0517298 has a compression section that compresses the sternum of the patient, a chest band that tightens and contracts the rib cage when the compression section compresses the sternum, and the chest contraction section connected to the compression section, and according to the size of the patient's rib cage In the board combined with a cardiopulmonary resuscitation having a length adjusting unit for adjusting the length, the length adjusting unit is fixedly installed in the inside of the board, the outer side of the board is formed in the receiving groove for storing when the pressing unit is not used It is intended to include a moving means provided on the board to easily move the board, it is easy to transport the patient during CPR It is easy, and can start CPR quickly and easily, there is an advantage that can increase the recovery probability of the patient by continuously performing CPR during the transfer of the patient.

A defibrillator is used to deliver an electric shock to the heart through the chest wall to restore regular heartbeat. Specifically, a high-pressure current is applied to a heart showing arrhythmias such as ventricular fibrillation, atrial fibrillation, atrial fluttering, and ventricular tachycardia. By working for a very short time, you are recovering to your normal pulse. In particular, cardiac output does not occur in the heart with ventricular fibrillation, so if the heartbeat is not restored by defibrillation in a short time, the probability of death increases.

In general, such a defibrillator uses two unipolar electrodes at the apical part and the cardiac part of the chest wall (direct heart during cardiac surgery).

However, since the above-described cardiopulmonary resuscitation device and defibrillator are developed and used respectively, two resuscitation devices (cardiopulmonary resuscitation device and defibrillator) should be used to treat the same cardiopulmonary arrest patient.

Also, because some CPR devices have bands around the rib cage or structures to support chest compressions, it is difficult to attach electrode pads for defibrillation to the rib cage surface while CPR devices are in use. It is pointed out as a problem during the procedure that it is impossible or to attach the electrode only after stopping the operation of the CPR device.

In addition, the interlocking between the two devices does not work, and when one device is used, the other device needs to be stopped, and the chest pressure is temporarily stopped (more than 10 seconds) to the person who has cardiopulmonary arrest. In some cases, despite the rapid decline in survival, interruption of chest compressions is inevitable with each device.

In addition, rescuers, such as emergency rescuers, are accompanied by the inconvenience of bringing two devices when dispatched for cardiopulmonary arrest patients.

An object of the present invention is to provide a fully automatic cardiopulmonary resuscitation device for cardiopulmonary resuscitation and defibrillation is made according to the situation by automatically detecting cardiopulmonary arrest and ventricular fibrillation according to the patient's condition To provide.

The object, the base is formed so that the patient can lie down; A rib cage that is connected to the pedestal and surrounds the rib cage of the patient; A length adjusting unit for adjusting the length of the rib cage so that the rib cage may contract by tightening the rib cage of the patient; A heart sound sensor mounted on the chest band to measure heart sound; A tension sensor for measuring a change in tension of the rib cage to detect whether the patient breathes; An electrocardiogram electrode mounted on the rib cage and used to measure an electrocardiogram waveform of a patient; A compression unit mounted on the rib cage to compress the sternum of the patient; A left electrode pad and a right electrode pad mounted on the chest band to transmit an electric shock to a patient, and a defibrillation control unit installed on the pedestal or the pressing unit to control an electric shock delivered to the left electrode pad and the right electrode pad; Defibrillator being; And a central control unit configured to control the compression unit to operate when the cardiopulmonary arrest is detected through the cardiac sound sensor and the tension sensor, and to control the defibrillator to operate when the ventricular fibrillation is detected through the ECG electrode. Achieved by the resuscitation device.

The heart sound sensor is mounted on the left chest of the chest band, the electrocardiogram electrode is formed in plural, and the central control unit has a first control value according to whether there is a heart sound detected by the heart sound sensor for 10 seconds; A second control value according to whether there is a change in tension detected by the tension sensor for 10 seconds, and a second value according to whether the QRS wave detected by the ECG electrode for 10 seconds exceeds 40 times per minute. Cardiopulmonary arrest and ventricular fibrillation can be detected by dividing the three control values.

If the first control value is negative, the central controller may determine that the card is stopped and repeat the detection when the first control value is positive and the third control value is negative.

If the second control value is negative, the central control unit may determine that respiration stops.

The cardiac pacemaker may further include an artificial cardiac pacemaker operated when bradycardia is detected by the electrocardiogram electrode, and the cardiac pacemaker may share the left electrode pad and the right electrode pad of the defibrillator.

The apparatus may further include a guide device displaying a method of using the automatic cardiopulmonary resuscitation by voice or a screen.

The guide device is controlled by the central control unit, guides the state of cardiopulmonary arrest and ventricular fibrillation, and can guide the operation of the compression unit and the defibrillator.

A GPS transmitter and receiver for receiving a signal from a GPS satellite and transmitting a position thereof when the automatic cardiopulmonary resuscitation device is used; And when the automatic cardiopulmonary resuscitation device is used, may further include a rescue request unit for transmitting and receiving voice or image information to the rescue center or medical institution.

The control unit may further include a remote control unit for transmitting information from the central control unit to a rescue center or a medical institution, or receiving a control signal from the rescue center or a medical institution and transmitting the received control signal to the central control unit.

According to the present invention, cardiopulmonary resuscitation and automatic defibrillation can be performed by combining the pads of the defibrillator as well as the cardiac sound sensor, the tension sensor and the electrocardiogram electrode on the chest band, and automatically stop cardiopulmonary arrest and ventricular fibrillation according to the patient's condition. By detecting the cardiopulmonary resuscitation and defibrillation can be made according to the situation.

Some people with impending cardiopulmonary arrest may be shock-induced by bradycardia, and the defibrillator and cardiac pacemaker may be selectively selected according to ventricular fibrillation detection and bradycardia by allowing the cardiac pacemaker to be embedded with the defibrillator while sharing electrode pads. Can be used as

1 is a cross-sectional view schematically showing a fully automatic cardiopulmonary resuscitation device according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a connection relationship between components in the fully automatic cardiopulmonary resuscitation device shown in FIG. 1.
3 is a diagram illustrating an algorithm for determining cardiopulmonary arrest and ventricular fibrillation according to a heart sound sensor, a tension sensor, and an electrocardiogram electrode in the central control unit of the fully automatic cardiopulmonary resuscitation device of FIG. 1.
4 is a diagram illustrating an algorithm of a CPR process in the fully automatic CPR apparatus of FIG. 1.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

1 is a cross-sectional view schematically showing a fully automatic cardiopulmonary resuscitation device according to an embodiment of the present invention, Figure 2 is a diagram showing the connection between the configuration in the fully automatic cardiopulmonary resuscitation device shown in FIG.

As shown in FIG. 1, the fully automatic cardiopulmonary resuscitation device according to the present invention includes a pedestal 100 and a rib cage 110, and a defibrillator for resolving ventricular fibrillation and compression unit 200 used in CPR. Synchronization 300 and the heart sound sensor 130, the tension sensor 140 and the ECG electrode 150, and the like.

The pedestal 100 is formed so that the patient can lie down to form the base of the fully automatic cardiopulmonary resuscitation device according to the present invention, the other configuration is directly or indirectly coupled to the pedestal 100.

And the chest band 110 is connected to the base 100 is made of a form surrounding the patient's rib cage. In FIG. 1, the patient is shown in an abbreviated form, and the chest of the patient is positioned inside the chestband 110 having an elliptical shape.

As shown in FIG. 1, the length adjusting part 120 is formed inside the pedestal 100 to adjust the length of the chestband 110. When the chest band 110 surrounding the patient's chest is loose or too tight while the patient is lying on the pedestal 100, the compression unit 200 may not properly compress the sternum, so the chest band 110 is in a proper state. Length adjustment unit 120 is formed to tighten the rib cage of the patient.

The length adjusting part 120 is formed in a symmetrical shape, and is formed in a shape such that the chest band 110 is unwound and wound on both left and right sides. Accordingly, the length adjusting unit 120 is formed with a bobbin (not shown) to which both ends of the chestband 110 are wound, and a pair of gears (not shown) to rotate the bobbin with each other. In addition, an electric motor for transmitting rotational power to the bobbin and the gear is connected.

As an apparatus for determining occurrence of cardiopulmonary arrest, a cardiac sound sensor 130 for determining cardiac arrest is first formed. The heart sound sensor 130 is mounted on the left chest of the chest band 110. Instead of the heart sound sensor 130, a plethysmograpgy sensor that can measure blood flow changes in the chest cavity may be used, and a presmograph sensor may be used together with the heart sound sensor 130.

Sound generated in the heart is transmitted to the chest wall to generate vibrations in the chest wall, and the heart sound sensor 130 corresponds to a means for detecting the vibration. Therefore, the heart sound sensor 130 can be made on the same principle as a conventional heart sound system, it is possible to confirm the heart sound in the form of converting the vibration transmitted to the chest wall into electrical energy by the microphone.

And the tension sensor 140 is formed as a means for determining whether or not breathing. The tension sensor 140 is a means for detecting the tension change of the chest band 110 in the chest band 110 that is pulled around the patient's chest, and the degree of tension of the chest band 110 depending on whether breathing It can be made in the form of detecting, the form of detecting the change in pressure acting on the chestband (110).

In the heart, there is a sinouricular node (SA node), a specific part of the heart that regulates the heartbeat by periodically generating electricity and inducing heart contractions, where it produces electrical signals. The electricity thus produced is transferred to the entire heart along the electrical conduction system in the heart. The electrical signals transmitted to each part of the heart cause the cells of the heart muscle to contract, causing the heart to beat. The electrocardiogram electrode 150 used in the present invention is used to detect an electrical signal of the heart and is attached to the skin, and has the same principle and structure as the electrode used in general electrocardiography.

The electrocardiogram electrode 150 is formed in plural in the rib cage 110 and is formed in a portion covering the front of the chest of the patient.

In the present invention, the compression unit 200 is mounted to the center of the chest band 110 to be formed to compress the sternum of the patient, using the pressure in accordance with the movement of the fluid, including air or press the sternum using the power of the motor It can be made in the form. Compression unit 200 is a means for artificially squeezing the blood by using the force delivered to the heart directly through the chest wall by pressing the sternum and the indirect force applied to the vascular system as the intrathoracic pressure increases It is a device for circulation.

The defibrillator 300 according to the present invention is a device for transmitting an electric shock to the heart through the chest wall to recover a regular heartbeat, and includes a left electrode pad 310, a right electrode pad 320, and a defibrillation controller 330. ) The defibrillator 300 according to the present invention is made of the same principle as a general defibrillator (Defibrillator, 除 細 動 器), but in the defibrillator 300 according to the present invention, the left electrode pad 310 and the right electrode pad ( 320 is provided in the form to be mounted on the chest strap (110). That is, the defibrillator 300 is not provided separately from the chest band 110, the left electrode pad 310 is mounted on the left front side portion of the rib cage in the chest band 110, the right electrode pad ( 320 is mounted at the right front position of the rib cage in the rib cage (110). The electrode pads 310 and 320 may also serve as electrocardiogram electrodes.

The defibrillation control unit 330 constituting the defibrillator 300 according to the present invention may be installed on the pedestal 100 or the pressing unit 200.

In the fully automatic cardiopulmonary resuscitation device according to the present invention, the central control unit 400 is configured to receive electrical and mechanical signals from the above-described components, and control the respective components in accordance with the signals. The central control unit 400 includes a microprocessor and a storage medium, and includes an operating system program for driving the same.

The central control unit 400 controls the compression unit 200 to repeatedly compress the sternum when the cardiopulmonary arrest is detected through the sound sensor 130 and the tension sensor 140, and ventricular fibrillation through the ECG electrode 150.動, ventricular fibrillation, the state in which each part of the ventricles irregularly contracted in the heartbeat) is detected to control the defibrillator 300 to operate. This will be described in more detail below.

3 is a diagram illustrating an algorithm for determining cardiopulmonary arrest and ventricular fibrillation according to a heart sound sensor 130, a tension sensor 140, and an electrocardiogram electrode in the central control unit 400 of the fully automatic cardiopulmonary resuscitation device according to FIG. 1.

As described above, the fully automatic cardiopulmonary resuscitation device according to the present invention, after detecting the state of the patient through the heart sound sensor 130, the tension sensor 140 and the electrocardiogram electrode 150 determines the cardiopulmonary arrest and defibrillation. Sensors and electrodes of the fully automatic cardiopulmonary resuscitation device are operated simultaneously for 10 seconds after the start of the operation to determine whether cardiopulmonary arrest and defibrillation needs, the process is as follows.

After the automatic cardiopulmonary resuscitation device is operated according to the present invention, the first control value is input to the central control unit 400 according to whether there is a heart sound detected by the heart sound sensor 130 for 10 seconds. That is, when the heart sound is detected by the heart sound sensor 130 for 10 seconds, as shown in FIG. 3, the state indicated by (+) is input to the central controller 400, and the heart sound is not detected for 10 seconds. In this case, the state indicated by (-) is input to the central controller 400. Here, if the first control value is negative, that is, negative, it is determined as cardiac arrest.

The second control value is input to the central controller 400 according to whether there is a change in tension detected by the tension sensor 140 for 10 seconds. In this case, if the tension change is detected by the tension sensor 140 for 10 seconds, the state displayed as (+) is input to the central control unit 400, and if the tension change is not detected for 10 seconds, it is displayed as (-). The state is input to the central control unit 400. In this case, when the second control value is negative, that is, negative, the breathing stop is determined.

In addition, by measuring the QRS wave detected by the electrocardiogram electrode 150 for 10 seconds, a third control value according to whether or not exceeding 40 times per minute is input to the central control unit 400. In this case, if the QRS wave exceeds 40 times per minute, the state represented by (+) is input to the central control unit 400, and if less, the state represented by (-) is input to the central controller 400. Here, the QRS wave is a wave generated by the depolarization process of the ventricular muscle in the electrocardiogram, and the first downward wave following the P wave is the Q wave, the first upward wave is the R wave, and the downward wave continues to the R. Name it S wave.

When ventricular fibrillation and contraction are confirmed through electrocardiogram analysis judged by the electrocardiogram electrode 150, the cardiac arrest is determined. When QRS waves of 40 or less per minute are detected, that is, the third control value is negative ((- )) In the case of heart sound, chest band 110 to determine the tension to determine whether cardiac arrest. Preferably, when the first control value is positive and the third control value is negative, the detection is repeatedly determined.

4 is an algorithm illustrating a cardiopulmonary resuscitation process in the fully automatic cardiopulmonary resuscitation device of FIG. 1.

Other fully automatic cardiopulmonary resuscitation device according to the present invention may further comprise an artificial heart pacemaker (500).

In the present invention, an artificial heart pacemaker (500, cardiac pacemakers) is a device that detects a problem of heart rhythm and sends electrical stimulation so that the heart can be beat regularly and on time, and is the same as a conventional pacemaker. It consists of principle and structure. However, the artificial cardiac pacemaker 500 according to the present invention is not provided with an electrode pad for applying electrical stimulation to the chest, and the left electrode pad 310 and the right electrode pad 320 of the defibrillator 300 described above. Share.

Therefore, the cardiac pacemaker 500 is operated when bradycardia (slow vein, bradycardia) is detected through electrocardiogram analysis through another fully automatic cardiopulmonary resuscitation device, and the defibrillator 300 is operated when ventricular fibrillation is detected. Done.

In addition, the fully automatic cardiopulmonary resuscitation device according to the present invention may further comprise a guide device 600 that shows the use method by voice or screen. That is, when the fully automatic cardiopulmonary resuscitation device according to the present invention is used, the process of laying the patient on the pedestal 100, the chest band 110 is placed on the chest of the patient and the chest band 110 by the length adjusting unit 120 Tightening process, the heart sound sensor 130, the tension sensor 140 and the electrocardiogram electrode 150 to the chest and through this process to detect cardiac arrest and ventricular fibrillation, compression unit 200 and defibrillator 300, etc. Speakers and storage are provided so that a sequence of steps of this actuation process can be transmitted to rescue workers and the like by voice. In addition, the guidance of this order may be transmitted as a picture or an image through an LCD screen or the like, and may be transmitted together with voice.

Such a playback device (speaker, etc.), a display device (LCD), a storage device, and the like are connected to and controlled by the central controller 400. Through this means, it is possible to induce the user to use the fully automatic cardiopulmonary resuscitation device, it is possible to easily communicate the operating state and operation process of the device.

In addition, the fully automatic cardiopulmonary resuscitation device according to the invention further comprises a GPS transmitter and receiver 700 and the rescue request unit 800, when the automatic cardiopulmonary resuscitation device is used to automatically position the patient in the rescue center and / or medical institution And a rescue request is made.

The GPS transmitter / receiver 700 receives a signal from a GPS satellite and transmits the position of the fully automatic cardiopulmonary resuscitation device. The structure request unit 800 may be made of a wired communication device, but preferably made of a wireless communication device. The rescue request unit 800 includes a storage medium and transmits a rescue request signal stored in the storage medium.

In addition, the automatic cardiopulmonary resuscitation device according to the present invention further comprises a remote control unit 900, and transmits the information from the central control unit 400 to the rescue center or medical institution through the remote control unit 900 or from the rescue center or medical institution A control signal is received. The remote control unit 900 is a device for remote operation through a communication transmission line, a microwave, or the like, and may be made like a conventional remote control device. The remote control unit 900 transmits information on the state of the patient and the operation state of the fully automatic cardiopulmonary resuscitation device detected through the central control unit 400, and transmits the control signal transmitted through the control terminal installed in the rescue center or the medical institution. 400).

This allows the remote medical practitioner to monitor the use of the fully automatic CPR and to control it remotely. The fully automatic cardiopulmonary resuscitation device according to the present invention may further be equipped with various storage devices which are commonly used to record signals from the patient during the use of the device and the operation of the device.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious to those who have. Accordingly, it should be understood that such modifications or alterations should not be understood individually from the technical spirit and viewpoint of the present invention, and that modified embodiments fall within the scope of the claims of the present invention.

100: pedestal 110: chest band
120: length adjustment unit 130: heart sound sensor
140: tension sensor 150: ECG electrode
200: pressure portion
300: defibrillator 310: left electrode pad
320: right electrode pad 330: defibrillation control unit
400: central control unit 500: artificial heart pacemaker
600: guide device 700: GPS transmitter and receiver
800: rescue request unit 900: remote control unit

Claims (9)

A pedestal formed to lie down by the patient;
A rib cage that is connected to the pedestal and surrounds the rib cage of the patient;
A length adjusting unit for adjusting the length of the rib cage so that the rib cage may contract by tightening the rib cage of the patient;
A heart sound sensor mounted on the chest band to measure heart sound;
A tension sensor for measuring a change in tension of the rib cage to detect whether the patient breathes;
An electrocardiogram electrode mounted on the rib cage and used to measure an electrocardiogram waveform of a patient;
A compression unit mounted on the rib cage to compress the sternum of the patient;
A left electrode pad and a right electrode pad mounted on the chest band to transmit an electric shock to a patient, and a defibrillation control unit installed on the pedestal or the pressing unit to control an electric shock delivered to the left electrode pad and the right electrode pad; Defibrillator being; And
And a central control unit controlling the compression unit to operate when the cardiopulmonary arrest is detected through the heart sound sensor and the tension sensor, and controlling the defibrillator to operate when the ventricular fibrillation is detected through the electrocardiogram electrode.
The heart sound sensor is mounted on the left chest portion of the chest band, the ECG electrodes are formed of a plurality,
The central control unit may include a first control value according to whether there is a heart sound detected by the heart sound sensor for 10 seconds, a second control value according to whether there is a change in tension detected by the tension sensor for 10 seconds, Cardiopulmonary arrest and ventricular fibrillation are detected by dividing a third control value according to whether the QRS wave detected by the ECG electrode for 10 seconds exceeds 40 times per minute,
If the first control value is negative, the central controller determines that the card is stopped, and repeats the detection when the first control value is positive and the third control value is negative, and when the second control value is negative. Fully automatic cardiopulmonary resuscitation device characterized in that judged by respiratory arrest. delete delete delete The method according to claim 1,
It further comprises an artificial cardiac pacemaker operated when bradycardia is detected by the ECG electrode,
The cardiac pacemaker shares a left electrode pad and a right electrode pad of the defibrillator. The method according to claim 1,
Fully automatic cardiopulmonary resuscitation device characterized in that it further comprises a guide device for displaying the use of the automatic cardiopulmonary resuscitation device by voice or screen. The method according to claim 6,
The guide device is controlled by the central control unit, the cardiopulmonary stop and ventricular fibrillation state, and guide the operation of the compression unit and the defibrillator, characterized in that fully automatic cardiopulmonary resuscitation. The method according to claim 1,
A GPS transmitter and receiver for receiving a signal from a GPS satellite and transmitting a position thereof when the automatic cardiopulmonary resuscitation device is used; And
And a rescue request unit for transmitting and receiving voice or image information to a rescue center or a medical institution when the fully automatic CPR is used. The method according to claim 1,
And a remote control unit for transmitting information from the central control unit to a rescue center or a medical institution, or receiving a control signal from the rescue center or a medical institution and transmitting the control signal to the central control unit.

Images