Emergency treatment device for chest compression and defibrillation of patients and method for correcting disappearance of chest compression depth of patients

Abstract

A method for correcting the disappearance of the chest compression depth of a patient according to an embodiment of the present invention includes: a) After setting, in a control unit, a value of the chest compression start position of the patient at which the chest compression of the patient is started at the lower end of a piston disposed above the chest of the patient, expanding or contracting the piston so that the lower end of the piston moves to the chest compression start position according to the value of the chest compression start position of the patient; b) Applying, in the control unit, a value of the initial chest compression depth, which is a moving length value of the piston from the chest compression start position of the patient toward the upper side of a support plate that supports the patient's back, and a critical value of the chest compression depth, expanding and contracting the piston so that chest compression is performed, and during the progress of the chest compression, sensing a change in the chest shape of the patient and updating the chest compression start position of the patient; c) A step of comparing and determining by the control unit a combined value of the isolation distance between a cap fastened to the lower end of the piston and the chest of the patient and the value of the initial chest compression depth with the critical value of the chest compression depth; and d) Expanding and contracting the piston so that the cap reciprocates according to the value of the initial or updated chest compression depth, so that chest compression by the cap is performed.

Description

Technical Field

[0001] The present invention relates to an emergency treatment device for chest compression and defibrillation of a patient and a method for correcting the disappearance of chest compression depth. More specifically, the present invention relates to an emergency treatment device for chest compression and defibrillation of a patient, and a method for correcting the disappearance of chest compression depth caused by chest shape deformation generated during the process of compressing the patient's chest with a cap provided on the emergency treatment device, so as to ensure that the chest compression of the patient is accurately performed.

Background Art

[0002] Cardiopulmonary Resuscitation (CPR) is a method that repeats a series of processes such as chest compression, airway maintenance, and artificial respiration. More specifically, when a patient with suspected cardiac arrest occurs, after confirming the safety of the scene and the reaction and breathing status of the fallen person, call for help from the surrounding people and report to the emergency rescue agency as soon as possible. Then, place the heel of the hand and stack both hands, and compress 30 times straightening the elbows at the center of the chest (avoiding the sternum and the center of the nipples). The compression depth should be less than 4 - 6 cm. After chest compression, secure the airway and perform artificial respiration 2 times at a rate of 1 time per 1 - 25 seconds while confirming that the chest rises. Alternately perform chest compression and artificial respiration 2 times.

[0003] However, in the case of the general public, even if they have received CPR education, when a cardiac arrest patient occurs, there are problems such as unfamiliarity with CPR, the burden on rib injuries, and the inability to accurately grasp the compression depth because the height of the chest is not constant for each patient.

[0004] Various types of cardiopulmonary resuscitation (CPR) devices are known. One such device is driven by compressed air or breathing gas (Jolife AB, Lund, Sweden; LucasTM). A unique advantage of the cardiopulmonary resuscitation device is that it is light and portable. Another advantage is the elastic nature of compressed air, which causes the gas-driven cardiopulmonary resuscitation device to cause less damage to the patient's chest than a device equipped with rigid compression means. The known device can be used as emergency equipment in life-saving situations. Also, when the patient is admitted to the hospital, the driving gas is supplied from a hospital air supply line suitable for continuous cardiopulmonary resuscitation strikes for the known device.

[0005] However, the cardiopulmonary resuscitation device is not provided with a function for analyzing an electrocardiogram (ECG), so there is a problem that it is difficult to accurately confirm whether the patient has cardiac arrest.

[0006] As described above, since the cardiopulmonary resuscitation device has a problem that it is difficult to accurately confirm whether the patient has cardiac arrest, it needs to be embodied as a device integrated with an automated external defibrillator (AED), which is a device for analyzing an electrocardiogram in an emergency situation, and used in an emergency situation.

[0007] On the other hand, as a device in which a cardiopulmonary resuscitation device and an automated external defibrillator are integrated, Republic of Korea Registered Patent No. 10-1956053 (invention name: Cardiopulmonary resuscitation device in which the depth of compression during chest compression is adjusted, hereinafter referred to as "prior art") has been published.

[0008] The prior art includes a chest compression unit provided with chest compression means for compressing the patient's chest, a control means for analyzing the patient's electrocardiogram and controlling an electric shock, and a defibrillator unit provided with pads attached to the patient. By adjusting the length of the hydraulic frame and the height adjustment frame so that the chest compression unit is located in the upper region toward the patient's chest, the depth of chest compression of the chest compression unit is adjusted, and it is a cardiopulmonary resuscitation device capable of easily performing cardiopulmonary resuscitation.

[0009] However, when the prior art compresses the patient's chest in the initial chest state of the patient before compressing the patient's chest, the patient's chest will be pushed and the chest shape will be deformed, and at the same time, the chest compression depth will disappear and an error in the chest compression depth will occur. Due to such an error, it becomes difficult to accurately perform cardiopulmonary resuscitation at the chest compression part, so there is a problem that it is difficult to provide the effect of the prior art that cardiopulmonary resuscitation can be easily performed. Summary of the Invention Problems to be Solved by the Invention

[0010] An object of the present invention is to correct the disappearance of the chest compression depth due to the change in the chest shape that occurs during the process of compressing the patient's chest with a cap provided in an emergency treatment device for patient chest compression and defibrillation, so that the patient's chest compression is accurately performed. It is to provide a method for correcting the disappearance of the patient's chest compression depth.

[0011] Another object of the present invention is to automate the patient's chest compression and defibrillation process. When the value obtained by adding the set initial chest compression depth and isolation distance is less than the critical value of the compression depth, compression is performed at the existing compression depth. When the critical value is exceeded, chest compression is performed at the corrected compression depth, thereby improving the accuracy and stability of the patient's chest compression and defibrillation process, and improving the ease of use for the user during the patient's chest compression and defibrillation. It is to provide a method for correcting the disappearance of the patient's chest compression depth.

[0012] Also, another object of the present invention is to periodically detect whether the chest compression start position is changed, audibly / visually notify the user of the change in the patient's chest shape, and provide a method for correcting the disappearance of the patient's chest compression depth that can update the chest compression start position.

[0013] However, the technical problems to be achieved by the present invention are not limited to the technical problems mentioned above. Other technical problems not mentioned will be clearly understood by those with ordinary knowledge in the technical field to which the present invention belongs from the following description. Means for Solving the Problems

[0014] An emergency treatment device for chest compression and defibrillation of a patient according to an embodiment of the present invention, which is a technical means for achieving the above object, includes a support plate for supporting the patient's back, a support base having one end and the other end coupled to both edges of the support plate, and a hood coupled to one side of the support base and disposed above the patient's chest, to which a piston for compressing the patient's chest is connected. After setting the value of the chest compression start position of the patient at which the chest compression of the patient starts at the lower end of the piston, the piston is expanded or contracted so that the lower end of the piston is moved to the chest compression start position according to the value of the chest compression start position, and the value of the initial chest compression depth, which is the moving length value of the piston from the chest compression start position toward the upper side of the support plate, and the critical value of the chest compression depth are applied to expand and contract the piston so that chest compression is performed. During chest compression, the change in the patient's chest shape is sensed to update the chest compression start position of the patient, and the value obtained by combining the isolation distance between the cap fastened to the lower end of the piston and the patient's chest and the value of the initial chest compression depth is compared with the critical value of the chest compression depth, and the piston is expanded and contracted so that the cap reciprocates according to the value of the initial or updated chest compression depth, and chest compression by the cap is performed, and is characterized by including a control unit.

[0015] A method for correcting the disappearance of the chest compression depth due to the change in the chest shape during the process of compressing the patient's chest with a cap provided in an emergency treatment device for chest compression and defibrillation of a patient according to an embodiment of the present invention includes: a) After setting the value of the chest compression start position of the patient at the lower end of the piston disposed on the upper side of the patient's chest by a control unit, expanding or contracting the piston so that the lower end of the piston moves to the chest compression start position according to the value of the chest compression start position of the patient; b) Applying the value of the initial chest compression depth, which is the moving length value of the piston from the chest compression start position of the patient toward the upper side of the support plate that supports the patient's back, and the critical value of the chest compression depth by the control unit, expanding and contracting the piston so that chest compression is performed, and during the progress of chest compression, sensing the change in the patient's chest shape and updating the chest compression start position of the patient; c) A step of comparing and determining by the control unit the combined value of the isolation distance between the cap fastened to the lower end of the piston and the patient's chest and the value of the initial chest compression depth with the critical value of the chest compression depth; and d) Expanding and contracting the piston so that the cap reciprocates according to the value of the initial or updated chest compression depth, and performing chest compression by the cap.

Advantages of the Invention

[0016] The present invention has the effect that the chest compression of the patient can be accurately performed by correcting the disappearance of the chest compression depth due to the change in the chest shape generated during the process of compressing the patient's chest with a cap provided in an emergency treatment device for chest compression and defibrillation of the patient.

[0017] In addition, the present invention automates the chest compression and defibrillation process of the patient. When the combined value of the set initial chest compression depth and the isolation distance is less than the critical value of the compression depth, compression is performed at the existing compression depth. When the critical value is exceeded, chest compression is performed at the corrected compression depth, thereby improving the accuracy and stability of the chest compression and defibrillation process of the patient, and improving the ease of use of the user during chest compression and defibrillation of the patient.

[0018] Furthermore, the present invention can periodically detect whether the chest compression start position is changed, audibly / visually notify the user of the change in the patient's chest shape, and update the chest compression start position, thereby ensuring the convenience for the user.

[0019] However, the effects obtained from the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those having ordinary knowledge in the technical field to which the present invention pertains from the following description.

Brief Description of the Drawings

[0020]

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Embodiments for Carrying Out the Invention

[0021] Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those having ordinary knowledge in the technical field to which the present invention belongs can easily implement them. However, the description of the present invention is only an embodiment for structural or functional explanation, so the scope of the rights of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiments can be variously changed and can have various forms, the scope of the rights of the present invention should be understood to include equivalents that can realize the technical idea. In addition, since the objects or effects presented in the present invention do not mean that a specific embodiment should include all of them or should only include such effects, the scope of the rights of the present invention should not be construed as being limited thereby.

[0022] The meanings of the terms in the present invention are understood as follows.

[0023] Terms such as "first" and "second" are used to distinguish one component from another, and the scope of rights should not be limited by these terms. For example, the first component can be named the second component, and similarly, the second component can also be named the first component. The fact that a certain component is "connected to" another component should be understood to mean that it can be directly connected to the other component, but there may also be other components in between. In contrast, the fact that a certain component is "directly connected to" another component should be understood to mean that there are no other components in between. On the other hand, other expressions for explaining the relationship between components, namely, "between" and "immediately between", or "adjacent to" and "directly adjacent to", should be analyzed in the same way.

[0024] Singular expressions include plural expressions unless the context clearly indicates otherwise. Also, terms such as "including" or "having" are intended to specify the existence of the recited features, numbers, steps, operations, components, parts, or combinations thereof, and should be understood not to exclude the existence or addition possibility of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0025] All terms used herein have the same meaning as commonly understood by those having ordinary knowledge in the field to which the present invention pertains, unless otherwise defined. Terms defined in commonly used dictionaries should be analyzed to be consistent with the meaning they have in the context of the related art, and should not be construed to have an ideal or overly formal meaning unless clearly defined in the present invention.

[0026] FIG. 1 is a perspective view of a partial configuration of an emergency treatment device for chest compression and defibrillation of a patient according to an embodiment of the present invention, FIG. 2 is a schematic view of a partial configuration of the emergency treatment device for chest compression and defibrillation of the patient in FIG. 1, and FIG. 3 is a block diagram showing a unit provided in a hood according to an embodiment of the present invention.

[0027] As shown in FIGS. 1 to 3, an emergency treatment device for chest compression and defibrillation of a patient according to an embodiment of the present invention (hereinafter referred to as "emergency treatment device") includes a support plate 100, a support base 200, and a hood 300.

[0028] The support plate 100 is formed in a shape for supporting the back of a patient in whom diseases such as cardiac arrest and ventricular fibrillation have occurred, and includes a sliding guide 110 for sliding the support base 200 and the hood 300 having a shape in which a cardiopulmonary resuscitation device and an automated external defibrillator are integrated, a stopper 120 for fixing the positions of the support base 200 and the hood 300, and a band 130 for wrapping and fixing the upper part of the patient's arm including the elbow.

[0029] The support plate 100 is provided with an internal space on the side where the frame 115 provided on the sliding guide 110 can be retracted for height adjustment of the piston 310.

[0030] The sliding guide 110 is provided at both edges of the support plate 100, and one end and the other end of the support base 200 are slidably coupled so that the support base 200 can slide forward or backward.

[0031] As shown in FIG. 2(b) which is an enlarged view of region A in FIG. 2(a), the sliding guide 110 is provided with a frame 115 that can be retracted into the support plate 100 or pulled out from the inside of the support plate 100, so that the distance between both ends of the support base 200 can be adjusted, and thereby the height of the piston 310 can be adjusted.

[0032] Here, adjusting the height of the piston 310 is to prevent a situation where the chest compression point of a specific patient cannot be compressed in the piston 310 because each patient has a different body shape.

[0033] The stopper 120 is provided on the sliding guide 110 and has a shape that can be bound to one end and the other end of the support base 200. By being bound to one end and the other end of the support base 200, the positions of the support base 200 and the hood 300 are fixed from the binding to one end and the other end of the support base 200.

[0034] As shown in FIGS. 17 and 18, the band 130 has its back supported on the support plate 100, wraps around the upper part of the arm including the patient's elbow during chest compression, and is provided with a cuff 131 for fixing the patient's arm (D).

[0035] The cuff 131 includes a D-ring 132 and an opening 133. With a structure that passes through the D-ring 132, on the inner surface, it wraps around the patient's arm (D), adheres closely to the patient's arm (D), and hook-and-loop fasteners 131a and 131b that are detachable from each other are provided on one side to maintain the wrapped state of the patient's arm (D).

[0036] Although not shown, such a cuff 131 is wound around a shaft formed at the lower part of the support plate 100, is connected to the support plate 100, and is preferably arranged in a pair on the side of the support plate 100 so as to wrap around all of a pair of patients' arms (D).

[0037] In addition, the cuff 131 is formed with an opening 133 having a diameter into which the user's hand can be inserted so that the user can grip the support plate 100 and the cuff 131 simultaneously. The user inserts the hand into the groove formed at the lower part of the support plate 100 where the shaft of the support plate 100 (not shown) is provided together with the opening 133, and then grips the support plate 100 to which the cuff 131 is connected, and can move the first aid device to a desired location.

[0038] On the other hand, although the emergency treatment device in FIG. 18 does not include the support plate 100 for supporting the patient's back, it is preferably understood that it is an emergency treatment device according to an embodiment of the present invention including the support plate 100.

[0039] The support base 200 is coupled to the sliding guide 110 such that the lower end of the piston 310 moves to a position pressing the chest compression point of the patient. In one embodiment of the present invention, the shape for supporting the hood 300 is arched, but it is not limited thereto.

[0040] One end and the other end of the support base 200 are movably coupled to a pair of sliding guides 110, so that the support base 200 slides forward or backward about the sliding guide 110, or the distance between both ends can be adjusted by retracting and extending the frame 115.

[0041] It is preferable to perform the forward and backward sliding of the support base 200 and the distance adjustment between both ends before the piston 310 presses the chest compression point of the patient. When the support base 200 moves to a position for the piston 310 to press and relax the chest compression point of the patient, one end and the other end are bound by a pair of stoppers 120.

[0042] The support base 200 is configured such that one end and the other end are detachable from a pair of sliding guides 110, is detachable from the pair of sliding guides 110, and is detachable from the support plate 100 together with the hood 300 by detachment, and can be used as another device.

[0043] The hood 300 is coupled to one side of the support base 200, more specifically, to the center part (Arch Crown) of the arched support base 200, and is connected to the piston 310 for pressing the chest compression point of the patient. The components of the hood 300 are as follows.

[0044] As shown in FIG. 3, the hood 300 includes the piston 310, a control unit 320, an electrocardiogram measurement unit 330, a rhythm determination / shock signal generation unit 340, an electrical shock unit 350, and a chest impedance measurement unit 360. These components are either exposed to the outside or provided within the hood 300.

[0045] Before compressing the patient's chest compression point, the piston 310 is in a state separated from the patient's chest. It is operated by the control unit 320, compresses the patient's chest compression point, then separates from it, and can repeat the process of relaxing the patient's chest compression point.

[0046] The piston 310 operates based on a continuous compression mode in which it continuously compresses the patient's chest compression point according to a chest compression mode set by the control unit 320, or a compression 30:2 mode in which after 30 compressions of the patient's chest, 2 artificial breaths are performed and chest compression and artificial respiration of the patient are performed in parallel, and can provide chest compression-based first aid to the patient.

[0047] The piston 310 is operated by the control unit 320 to intersect or operate simultaneously with the electrical shock unit 350, and can provide cardiopulmonary resuscitation and electrical shock-based first aid to the patient.

[0048] Also, the piston 310 can directly compress the patient's chest compression point, but is not limited thereto. A cap 700 for directly compressing the patient's chest compression point is detachable at the lower end. The cap 700 can be made of a material such as silicon for relaxing the impact during the process of compressing the patient's chest compression point.

[0049] That is, the hood 300 connects the piston 310 or a cap 700 to the lower end of the piston 310, compresses the patient's chest compression point through the cap 700, and performs cardiopulmonary resuscitation. Hereinafter, the first aid device of the present invention will be described in detail by the lower end of the piston 310 compressing the patient's chest compression point.

[0050] On the one hand, when the piston 310 and the electric shock unit 350 operate, the emergency treatment device of the present invention can provide chest compressions and electric shocks to a patient alternately or simultaneously by one system. Therefore, compared with conventional cardiopulmonary resuscitation devices and automated external defibrillators, it has an excellent effect in terms of versatility.

[0051] The control unit 320 controls the operations of the piston 310, the electrocardiogram measurement unit 330, the rhythm determination / shock signal generation unit 340, the electric shock unit 350, and the chest impedance measurement unit 360, which are components provided in the hood 300, and a plurality of buttons are provided for this purpose.

[0052] Although not shown in the figure, as a specific example, the plurality of buttons include a power button for turning on / off the power of the emergency treatment device, a control button for setting the mode of the emergency treatment device to the automatic cardiac shock mode and / or the chest compression mode, a stop button for stopping the operation of the piston 310, a compression mode setting button for setting whether the piston 310 performs chest compressions (CPR) on the patient or for setting the chest compression mode of the piston 310, a compression depth setting button for setting the chest compression depth (depth) of the piston 310, a compression frequency setting button for setting the number of chest compressions of the piston 310, a shock button for operating the electrocardiogram measurement unit 330, the rhythm determination / shock signal generation unit 340, and the electric shock unit 350, and an adaptive length change button for selecting whether to correct the update of the chest compression start position of the patient and the disappearance of the chest compression depth.

[0053] When an input signal is input to the power button and the power of the emergency treatment device is turned on, the control unit 320 performs a self test to determine whether initialization and normal operation are possible. When the emergency treatment device is in the on state, if an input signal is input to the power button again, the initialization is set and the power of the emergency treatment device is turned off.

[0054] When the chest compression mode set by the compression mode setting button is the compression continuous mode, the control unit 320 controls the operation of the piston 310 so that the compression and relaxation of the patient's chest are repeated. On the contrary, when the chest compression mode set by the compression mode setting button is the compression 30:2 mode, the operation of the piston 310 can be controlled so that artificial respiration is performed twice after the patient's chest is compressed 30 times.

[0055] When an input signal is input to the compression depth setting button, the control unit 320 can control the operation of the piston 310 so that the patient's chest is compressed at at least one depth of 4 cm, 4.5 cm, 5 cm, or 5.5 cm. Furthermore, when an input signal is input to the compression depth setting button in the initialization state, the patient's chest is compressed by 5 cm. When a signal is input thereafter, the patient's chest is compressed by 5.5 cm. When another signal is input, the patient's chest is compressed by 4 cm. When a further signal is input, the operation of the piston 310 can be controlled so that the patient's chest is compressed by 4.5 cm.

[0056] When an input signal is input to the compression frequency setting button, the control unit 320 can control the operation of the piston 310 so that the patient's chest is compressed at at least one frequency of 100 times, 110 times, or 120 times per minute. Furthermore, when an input signal is input to the compression frequency setting button in the initialization state, the patient's chest is compressed 110 times. When a signal is input thereafter, the patient's chest is compressed 120 times. When a further signal is input, the operation of the piston 310 can be controlled so that the patient's chest is compressed 100 times.

[0057] The electrocardiogram measurement unit 330 is connected to the rhythm determination / shock signal generation unit 340 and the control unit 320. When operated by the control unit 320, after detecting an electrocardiogram signal from the patient, it amplifies the signal, removes the noise from the amplified electrocardiogram signal, and then converts the electrocardiogram signal into a digital signal and transmits it to the rhythm determination / shock signal generation unit 340.

[0058] When an analog electrocardiogram signal is detected, the electrocardiogram measurement unit 330 is provided with an amplifier for amplifying the signal, a filter for removing noise from the electrocardiogram signal amplified by the amplifier, and an A / D converter for converting the electrocardiogram signal from which noise has been removed by the filter into a digital signal.

[0059] The electrocardiogram measurement unit 330 is provided on one side of the hood 300 to detect an analog electrocardiogram signal from a patient, and is composed of electrodes or pads that can be attached to the patient, so as to detect an electrocardiogram signal from the patient who supports the back on the support plate 100.

[0060] Here, since the process of detecting a patient's electrocardiogram signal by electrodes or pads is a normal matter, the description thereof will be omitted for convenience.

[0061] The rhythm determination / shock signal generation unit 340 is built into the hood 300 and is connected to the electrocardiogram measurement unit 330 so as to operate together when the electrocardiogram measurement unit 330 is operated by the control unit 320, thereby receiving a digital signal from the electrocardiogram measurement unit 330.

[0062] When the rhythm determination / shock signal generation unit 340 receives a digital signal from the electrocardiogram measurement unit 330, it analyzes the patient's electrocardiogram with the digital signal to determine whether the patient's electrocardiogram is a shockable rhythm or a nonshockable rhythm. When it is determined that the patient's electrocardiogram is a shockable rhythm, an electrical shock signal is generated and transmitted to the electrical shock unit 350 when the electrical shock unit 350 operates.

[0063] The electrical shock unit 350 is connected to the rhythm determination / shock signal generation unit 340 and receives an electrical shock signal from the rhythm determination / shock signal generation unit 340 when it is determined that the patient's electrocardiogram is a shockable rhythm and operates by the control unit 320.

[0064] When the electric shock unit 350 receives an electric shock signal, it releases higher voltage energy than a pair of first electrodes 351 and a pair of second electrodes 352, so as to apply an electric shock to the patient.

[0065] The pair of first and second electrodes 351, 352 are preferably attached to the patient's chest so as to apply an electric shock to the patient. As a specific example, a pair of first electrodes 351 can be attached under the right collarbone of the patient to apply an electric shock to the patient, and a pair of second electrodes 352 can be attached to the side adjacent to the left nipple of the patient to apply an electric shock to the patient.

[0066] Also, the pair of first and second electrodes 351, 352 are electrically connected to the electric shock unit 350 through a cable and are detachably attached to the electric shock unit 350 to release high voltage energy.

[0067] Also, the pair of first and second electrodes 351, 352 are described as components of the hood 300 in one embodiment of the present invention, but are not limited thereto. As components provided on the support plate 100, they can be electrically connected to the electric shock unit 350 through a cable and release high voltage energy.

[0068] The chest impedance measurement unit 360 measures the chest impedance of the patient and does not limit the measurement method of the chest impedance. Specifically, not only the release of high voltage energy, but also a pair of first electrodes 351 which are current output electrodes capable of outputting current and a pair of second electrodes 352 which are voltage detection electrodes capable of detecting voltage are used to continuously measure the chest impedance values when the patient's chest is compressed and relaxed.

[0069] On the one hand, the control unit 320 calculates whether a pair of first and second electrodes 351 and 352 are conformably attached to the patient within the chest impedance range of the patient measured by the chest impedance measurement unit 360, and uses the chest impedance value 421a during chest compression of the patient and the chest impedance value 421b during chest relaxation of the patient to calculate the profile of a biphasic electrical shock waveform.

[0070] In one embodiment of the present invention, the emergency treatment device further includes a storage unit 400 for storing information necessary during the emergency treatment process of the patient. The storage unit 400 consists of a first storage unit 410 and a second storage unit 420, and the information stored in each storage unit 410 and 420 is as follows.

[0071] FIG. 4 is a diagram showing the storage unit provided in the emergency treatment device for chest compression and defibrillation of a patient according to one embodiment of the present invention and the stored information.

[0072] As shown in FIG. 4, the first storage unit 410 has pre-stored start time information 411 for starting the electrocardiogram analysis of the patient, end time information 412 for ending the electrocardiogram analysis of the patient, and chest compression start position information 413 for causing the piston 310 to return after completing chest compression and relaxation of the patient.

[0073] The second storage unit 420 stores the chest impedance value 421a during chest compression of the patient measured by the chest impedance measurement unit 360, the chest impedance value 421b during chest relaxation of the patient, compression time information 422 for the piston 310 to compress the chest compression point of the patient, and relaxation time information 423 for relaxing the chest compression point of the patient.

[0074] Although the storage unit 400 has been described as consisting of a first storage unit 410 and a second storage unit 420 as one embodiment, it is not limited thereto. The first storage unit 410 and the second storage unit 420 are provided as one storage unit, and each piece of information is stored or pre-stored.

[0075] On the other hand, the control unit 320 calculates the average chest impedance values during chest compression and relaxation of the patient using the compression time information and relaxation time information stored in the second storage unit 420, and based on each chest impedance average value, can generate the profiles of the optimal biphasic electric shock waveforms during chest compression and relaxation of the patient.

[0076] In addition, when fluctuations occur in the chest impedance values 421a and 421b during chest compression and relaxation of the patient stored in the second storage unit 420, the control unit 320 can calculate the absolute value of the difference between each chest impedance value 421a and 421b during chest compression and relaxation of the patient continuously measured by the chest impedance measurement unit 360 and the average value of a certain number of chest impedance values of the chest impedance values 421a and 421b stored in the second storage unit 420.

[0077] In addition, when the calculated average value of the chest impedance and the absolute value of the difference are values equal to or greater than a predetermined absolute value, the control unit 320 excludes the average chest impedance value before the fluctuation stored in the second storage unit 420. After excluding the chest impedance average value, it replaces the chest impedance values 421a and 421b during chest compression and relaxation of the patient measured by the chest impedance measurement unit 360, and using the chest impedance values 421a and 421b, can generate the profiles of the optimal biphasic electric shock waveforms during chest compression and relaxation of the patient.

[0078] That is, according to one embodiment, the chest impedance value 421a during chest compression and the chest impedance value 421b during chest relaxation are respectively obtained, the average value of each is calculated, and when chest compression is performed at the time of applying an electric shock using the calculated average chest impedance values of each, a profile of the electric shock waveform corresponding to the average impedance value during chest compression is generated, and when chest relaxation is performed at the time of applying an electric shock, a profile of the electric shock waveform corresponding to the average impedance value during chest relaxation is generated so that an optimal electric shock waveform profile for the patient is generated.

[0079] Here, the profile of the optimal biphasic electric shock waveform generated by the control unit 320 will be described in detail with reference to FIG. 7 and Table 1 below.

[0080]

Table 1

[0081] As shown in FIG. 7, the profile of the biphasic electric shock waveform includes a positive waveform and a negative waveform, and when an electric shock is applied to the patient, it shows the current value and the duration applied. Also, in Table 1, the duration (ms) of the first phase interval, the duration (ms) of the second phase interval, the peak current (A), and the discharge energy (J) calculated therefrom provided by the average impedance value measured during chest relaxation or contraction of the patient are shown. The discharge energy (J) in Table 1 is the discharge energy for adult patients, and desirably, 200 J can be applied to adult patients, but it is not limited thereto.

[0082] Referring to FIG. 7 again, the profile of the biphasic electric shock waveform has the duration (ms) on the x-axis and the current (A) on the y-axis, and FIG. 7 shows a symmetric profile according to one embodiment of the present invention, but it is not limited thereto, and it may be configured with an asymmetric profile.

[0083] In actually implementing the present invention, the duration (ms) of the first phase interval, the duration (ms) of the second phase time, and the peak current (A) value according to each impedance value shown in Table 1 above are the duration (ms) of the first phase interval corresponding to the average impedance value measured at a predetermined value by the control unit 320 during chest compression and relaxation, the duration (ms) of the second phase time, and the peak current (A) value. According to the biphasic electric shock waveform profile, an electric shock will be applied to the patient.

[0084] In FIG. 7, a is the current value before the first phase interval, b is the current value between the first phase interval and the second phase interval, c is the current value after the second phase interval, and the values of a, b, and c can all be the same. Also, α is the amount of decrease while the peak current decreases during the first phase interval, β is the amount of decrease when the peak current decreases during the second phase interval, and the values of α and β can be the same as each other. Also, A is the duration during the first phase interval, B is the duration during the second phase interval, and the values of A and B can be the same. Also, (1) is the difference value between the current value immediately before the end of the first phase interval and the current value immediately before the start of the second phase interval, (2) is the absolute value of the peak current during the first phase interval, and the sum of (1) and α can be (2).

[0085] In one embodiment of the present invention, the emergency treatment device further includes a sensor 500 for sensing information during the emergency treatment process of the patient, and the sensor 500 may consist of a first sensing sensor 520 and a second sensing sensor 530.

[0086] FIG. 5 is a diagram showing a sensor provided in an emergency treatment device for chest compression and defibrillation of a patient according to one embodiment of the present invention.

[0087] As shown in FIG. 5, the sensor 500 senses the current position of the piston 310 in real time by the first sensing sensor 520 to generate current position information, and transmits the current position information of the piston 310 to the control unit 320 in real time.

[0088] On the one hand, before analyzing the patient's electrocardiogram, the control unit 320 will control the operation of the piston 310 using the information of the first sensing sensor 520 and the second sensing sensor 530. An example of the process of controlling the operation of the piston 310 using the current position information of the piston 310 is as follows.

[0089] Before analyzing the patient's electrocardiogram, the control unit 320 moves the lower end of the piston 310 to the chest compression start position so that the lower end of the piston 310 does not contact the patient's chest. When the lower end of the piston 310 moves to the chest compression start position, it determines whether the current position information of the piston 310 received in real time matches the chest compression start position, and makes the lower end of the piston 310 be arranged relatively higher than the chest compression start position, so as to make the piston 310 be in a standby state before compressing the patient's chest compression point.

[0090] In addition, after analyzing the patient's electrocardiogram, the control unit 320 can control the operation of the piston 310 so that the patient's chest is compressed and relaxed according to the settings of the chest compression mode, chest compression depth, and chest compression times by a plurality of buttons from the chest compression start position.

[0091] In addition, before the piston 310 compresses and relaxes the patient's chest compression point, when the piston 310 descends by the chest compression depth set by the compression depth setting button, the control unit 320 makes the patient's chest be compressed, so that the interval between the lower end of the piston 310 and the patient's chest becomes a predetermined interval (0 - 2 cm). That is, the chest compression start position of the patient means the position of the piston 310 that should be arranged for compressing the patient's chest during the patient's chest compression and relaxation process.

[0092] In addition, the optimization of the patient's chest compression start position by the control unit 320 is performed by updating the patient's chest compression start position every certain period (2 minutes and 30 seconds after the chest compression mode, chest compression depth, and chest compression count are set) in one embodiment. Updating the patient's chest compression start position every such certain period is because the chest may sink due to the patient's chest compression and relaxation, or the patient may move during the process of the patient supporting the back on the support plate 100, and the optimization of the patient's chest compression start position may not be achieved.

[0093] In addition, the control unit 320 can update the patient's chest compression start position when it receives the electrical information (e.g., power) used from the motor for driving the piston 310 and the current position information of the piston, and senses a change in the patient's chest compression start position. Here, the sensors for sensing electrical information, the rotation speed of the motor, and the piston movement distance information can be the first sensing sensor 520 and the second sensing sensor 530.

[0094] Referring to FIG. 5 again, the first sensing sensor 520 senses the electrical information used from the motor and transmits the electrical information to the control unit 320.

[0095] Such a first sensing sensor 520 is provided in the drive circuit of the motor and can be transmitted to the control unit 320 in real time after grasping the position of the lower end of the piston 310.

[0096] Here, the control unit 320 can receive the lower end position value of the piston 310 from the first sensing sensor 520 and determine the current position of the piston 310. Here, as described above, when the cap 700 is coupled to the lower end of the piston 310 to compress the patient's chest, the control unit 320 can calculate the lower end position value of the piston 310 in consideration of the value of the predetermined width of the first housing 710 located between the patient's chests.

[0097] As an example of the method by which the first sensing sensor 520 grasps the position of the lower end of the piston, when the piston 310 descends due to the rotation of the motor, during the descent of the void, the power consumption of the motor is maintained constant. During the descent of the space, the power consumption of the motor is constant, and the power consumption by the motor will increase from the moment the lower end of the piston touches the chest surface of the patient. The first sensing sensor 520 senses the power consumption by the motor, recognizes the moment when the power consumption increases as the chest surface of the patient, and here, can grasp the position value of the lower end of the piston and transmit it to the control unit 320.

[0098] Also, when the lower end of the piston 310 contacts the chest surface of the patient at regular intervals, the first sensing sensor 520 uses the difference in electrical information to sense whether the chest shape of the patient can be changed, and transmits whether the chest shape of the patient can be changed to the control unit 320.

[0099] Furthermore, when a cap 700 is fitted to the lower end of the piston 310, when the lower end of the cap 700 contacts the chest surface of the patient, the first sensing sensor 520 uses the difference in electrical information to sense whether the chest shape of the patient can be changed, and can also transmit whether the chest shape of the patient can be changed to the control unit 320.

[0100] The second sensing sensor 530 is provided on the motor. After sensing the rotation speed of the motor and the moving distance of the piston, it generates moving distance information of the piston 310 and transmits the moving distance information of the piston to the control unit 320.

[0101] In one embodiment, the sensor 500 includes the first sensing sensor 520 and the second sensing sensor 530, but is not limited thereto. The first sensing sensor 520 and the second sensing sensor 530 can be provided as one sensing sensor to respectively sense changes in electrical information, the rotation speed of the motor, and the moving distance information of the piston.

[0102] In one embodiment of the present invention, the emergency treatment device further includes a notification unit 600 for notifying a user of a message for the progress of the patient's emergency treatment, and the notification unit 600 includes a first notification unit 610 and a second notification unit 620.

[0103] FIG. 6 is a diagram showing a notification unit provided in an emergency treatment device for chest compression and defibrillation of a patient according to an embodiment of the present invention.

[0104] As shown in FIG. 6, when the chest compression start position of the patient is updated, the first notification unit 610 outputs a first message for notifying that the chest compression start position of the patient has been updated, and a second message for notifying a difference value between the existing patient's chest compression start position before the update and the updated patient's chest compression start position.

[0105] In addition, when the difference value between the existing patient's chest compression start position and the updated patient's chest compression start position is equal to or greater than a specific critical value, the first notification unit 610 outputs a third message. The specific critical value, which is a criterion for outputting the third message, is not limited, but in one embodiment of the present invention, it can be set to 1 cm.

[0106] That is, in one embodiment, the first notification unit 610 can output a third message when the difference value between the existing patient's chest compression start position and the updated patient's chest compression start position is 1 cm or more. When the chest compression start position of the patient is updated, a fourth message for requesting the user to select the chest compression depth (at least one of 4 cm, 4.5 cm, 5 cm, 5.5 cm) and the number of chest compressions (at least one of 100 times, 110 times, 120 times per minute) of the piston 310 can be output.

[0107] Here, after the user of the first aid device for first aid treatment of a patient is provided with the fourth message, signals are input to the compression depth setting button and the compression frequency setting button of the control unit 320 so that the chest compression depth and the chest compression frequency of the piston 310 are selected, and the chest compression depth and the chest compression frequency of the piston 310 can be selected. When the chest compression depth and the chest compression frequency are selected by the compression depth setting button and the compression frequency setting button, the control unit 320 can update the chest compression depth and the chest compression frequency.

[0108] In addition, when the first notification unit 610 senses a change in the chest shape of the patient from the first sensing sensor 520, the first notification unit 610 can output a fifth message for notifying the user that the chest shape of the patient has changed.

[0109] When at least one of the first to fifth messages output from the first notification unit 610, which is an auditory display device, is output in voice, an LED implemented by an LED electronic display board or an LED blinking light and a visual display device provided with a display can visually output the same message as the message output from the first notification unit 610 and provide it to the user.

[0110] When the absolute value of the difference between the chest impedance value calculated at the current time and the average value of each chest impedance during chest compression and relaxation of the patient stored in the second storage unit 420 by the control unit 320 is a value equal to or greater than a predetermined absolute value, the second notification unit 620 can output a message and notify the user.

[0111] On the other hand, the cap 700 attached to the lower end of the piston 310 is attached to the lower end of the piston 310 and is made of a member having a different hardness from the piston 310 made of a hard material, so that the pressure acting on the chest of the patient can be relieved and the buffering action of distributing the pressure can be continuously provided.

[0112] Hereinafter, the structure of the cap 700 will be described in detail.

[0113] FIG. 8 is a perspective view of a cap according to an embodiment of the present invention, FIG. 9 is a cross-sectional view taken along line A-A in FIG. 8, FIG. 10 is a perspective view showing a first member according to an embodiment of the present invention, FIG. 11 is a plan view showing the first member according to an embodiment of the present invention, and FIG. 12 is a cross-sectional view taken along line B-B in FIG. 11.

[0114] As shown in FIGS. 8 to 12, the cap 700 includes a first member 710 and a second member 720.

[0115] After the piston 310 and the cap 700 are fitted, when the piston 310 expands toward the patient's chest, the first member 710 can directly contact the patient's chest compression point and compress the patient's chest.

[0116] Further, the first member 710 is made of at least one of ethylene vinyl acetate, polyethylene, polyethylene - polypropylene blend, polystyrene, neoprene, chloroprene, polyurethane, and biocompatible silicone. Due to the characteristics of such materials, it can be embodied in a form that adapts to the shape of the patient's chest.

[0117] Furthermore, among the first member 710, the biocompatible silicone has a Shore A hardness of 10 to 30, and the other materials have an Asker C hardness of 10 to 20. In an embodiment of the present invention, the Asker C hardness is measured by an Asker hardness tester that measures the hardness based on the depth at which a pressing needle of a predetermined shape is pressed into the surface of the sample by the force of a spring until the resistance of the sample and the force of the spring are balanced. The shore hardness is measured by measuring the height to which a falling object with a small diamond fixed at its end bounces up when it falls from a certain height.

[0118] Further, as shown in FIGS. 11 to 14, the first member 710 has an outer shape formed by a first housing 711, and the first housing 711 is provided with a plurality of air flow ports 712 and a seating portion 713.

[0119] The first housing 711 is composed of an integrally formed inner housing 711a and an outer housing 711b, and the lower surface will contact the patient's chest.

[0120] When pressure is transmitted from the patient's chest to the lower surface during the patient's chest compression process, a plurality of air flow ports 712 are formed on the lower surface of the inner housing 711a so that a volume change occurs due to the air flow in the gap space (A).

[0121] The gap space (A) between the upper side of the inner housing 711a and the bottom 723 can have its volume decreased when air flows out along the air flow port 712 due to the expansion of the piston 310 during the patient's chest compression process. On the contrary, when it moves away from the patient's chest after the patient's chest compression is completed, the volume can be increased by the air flowing in through the air flow port 712.

[0122] During the patient's chest compression process, the lower surface of such an inner housing 711a contacts the patient's chest. Due to the expansion of the piston 310, air flows out from the gap space (A) to the outside, and the volume of the gap space (A) decreases. When the seating portion 713 provided at the center contacts the lower surface of the bottom 723, a negative pressure is generated in the gap space (A). After the negative pressure is generated in the gap space (A), when the piston 310 contracts, the lower surface in contact with the patient's chest compression point can pull the patient's chest and move upward.

[0123] The first housing 711 is formed with a protruding member insertion port 7110 at the boundary between the inner housing 711a and the outer housing 711b, into which a protruding member 7230 to be described later can be fitted.

[0124] The protruding member insertion port 7110 is formed in a circular shape at the boundary between the inner housing 711a and the outer housing 711b so that the protruding member 7230 can be fitted therein.

[0125] In addition, in the fitting structure of the first member 710 and the second member 720, a gap space (A) is generated between the inner housing 711a and the bottom portion 723 by the side walls forming the protruding member insertion port 7110 protruding upward.

[0126] When pressing the patient's chest, the first housing 711 needs to conform to the patient's chest. Accordingly, it is desirable that the lower surface of the inner housing 711a that contacts the patient's chest compression point is made of biocompatible silicon that is easily adaptable to the patient's chest among applicable materials. By continuously providing a buffering effect that relaxes and distributes the pressure acting on the patient's chest, it is possible to prevent rib fractures and hemothorax from occurring during the first aid process.

[0127] In addition, when the air in the gap space (A) flows out to the outside from the plurality of air flow ports 712 of the first housing 711, the volume of the gap space (A) decreases, and when the landing portion 713 contacts the lower surface of the bottom portion 723 of the second member 720, the gap space (A) is in a negative pressure state.

[0128] Furthermore, the inner housing 711a and the outer housing 711b of the first housing 711 are embodied in a bellows shape so that the volume of the gap space (A) can be changed by air flow.

[0129] The second member 720 is fitted with the piston 310 and comes into contact with the lower end portion of the piston 310, and is fitted to the first member 710.

[0130] Such a second member 720 can be made of one of polyurethane and polypropylene and biocompatible silicon, so that the material can be different from that of the first member 710.

[0131] Further, when the second member 720 is made of biocompatible silicon, it can have a Shore A hardness of 40 to 60, and when made of other materials, it can have an Asker C hardness of 25 to 30, so that the hardness can be different from that of the first member 710.

[0132] Also, as shown in FIGS. 11 to 14, the second member 720 has a second housing 721, a piston fitting portion 722, and a bottom portion 723 integrally formed.

[0133] The second housing 721 forms the outer shape of the second member 720 and is integrally formed with the piston fitting portion 722 and the bottom portion 723.

[0134] The piston fitting portion 722 is integrally formed with the second housing 721 and forms a piston fitting port 7220 so that the piston 310 fits on the upper part of the second member 720.

[0135] Also, the piston fitting portion 722 is a portion provided in a state bent from the second housing 721 to form a piston fitting port 7220 into which a fastening member (not shown) of the piston 310 can be retracted, and includes a first piston fitting portion 722a, a second piston fitting portion 722b, a third piston fitting portion 722c, and a fourth piston fitting portion 722d.

[0136] Furthermore, a pair of grooves 724a and 724b are formed between the first piston fitting portion 722a and the second piston fitting portion 722b and between the third piston fitting portion 722c and the fourth piston fitting portion 722d of the piston fitting portion 722. When the piston 310 fits into the piston fitting port 7220, a fastening member formed on a part of the outer peripheral surface of the piston 310 is retracted into the grooves 724a and 724b.

[0137] That is, the piston 310 is brought into contact with the bottom portion 723 at its lower end, and the fastening member is retracted into the pair of grooves 724a and 724b, so that the piston 310 is fastened to the cap 700.

[0138] Further, in the process of the coupling and decoupling of the fastening member of the piston 310 with the grooves 724a and 724b, the lower part of the piston fitting part 722 can be extended (or flowed) to the outside of the second housing 721 so that the fastening member of the piston 310 is pulled in or pulled out from the pair of grooves 724a and 724b. As a result, an expansion space 7221 is formed in the gap space with the second housing 721.

[0139] The bottom part 723 is the lower surface of the second member 720, is integrally formed with the second housing 721, and when the piston 310 is fitted into the piston fitting port 7220, the upper surface comes into contact with the lower end part of the piston 310.

[0140] Further, a protruding member 7230 is provided on the lower surface of the bottom part verb, is fitted into the protruding member insertion port 7110, and thereby the fitting of the first member 710 and the second member 720 is realized.

[0141] The protruding member 7230 can protrude circularly from the lower surface of the bottom part 723 so as to be fitted into the protruding member insertion port 7110.

[0142] Hereinafter, the process of the method (S100) for correcting the disappearance of the chest compression depth of a patient performed by the emergency treatment device according to an embodiment of the present invention will be described in detail.

[0143] As shown in FIG. 13, after the user of the emergency treatment device sets the value of the chest compression start position at the lower end of the piston 310 disposed at the upper end of the patient's chest by the control unit 320, the piston 310 is expanded or contracted so that the lower end of the piston 310 moves to the chest compression start position according to the value of the chest compression start position of the patient (S101).

[0144] Here, the expansion of the piston 310 means the descending process for compressing the patient's chest, and the contraction means the ascending process for relaxing the patient's chest.

[0145] Also, the patient's chest compression start position movement step (S101) is performed by the first sensing sensor 520 as described above.

[0146] After the patient's chest compression start position movement step (S101), the user can apply the value (L) of the chest compression depth, which is the moving length value of the piston 310 from the patient's chest compression start position in the upward direction of the support plate 100, and the critical value (T) of the chest compression depth with the control unit 320 (S102).

[0147] After the step (S102) of applying the value of the chest compression depth and the critical value of the chest compression depth, the control unit 320 expands and contracts the piston 310 so as to reciprocate according to a predetermined chest compression depth, and causes the cap 700 to compress the patient's chest (S103).

[0148] While the patient's chest is being compressed, the control unit 320 can periodically detect from the first sensing sensor 520 whether the patient's chest compression start position has changed (S104).

[0149] Here, if it is not detected from the first sensing sensor 520 that the patient's chest compression start position has changed and the change in the patient's chest compression start position is unnecessary (S104-NO), the control unit 320 maintains the patient's chest compression step (S103) to compress the patient's chest.

[0150] On the contrary, if it is detected from the first sensing sensor 520 that the patient's chest compression start position has changed and the change in the patient's chest compression start position is necessary (S104-YES), the control unit 320 can notify the user of the change in the chest shape due to the need to change the patient's chest compression start position by the first notification unit 610, which is an auditory display device, an LED electronic display board or an LED that is embodied by an LED blinking light, and a visual display device that is a display (S105).

[0151] Thus, after notifying the user of the change in the chest shape both audibly / visually (S105), the control unit 320 can determine whether a signal is input to the adaptive length button included in the emergency medical device (S106).

[0152] Here, if no signal is input to the adaptive length button (S106-NO), the control unit 320 maintains the patient chest compression step (S103) to compress the patient's chest.

[0153] In contrast, if a signal is input to the adaptive length button (S106-YES), the control unit 320 updates the patient chest compression start position (S107), and after calculating and comparing the value obtained by combining the isolation distance (X) and the value of the initial chest compression depth (L) with the critical value (T) of the chest compression depth respectively (S108).

[0154] Here, if the value obtained by combining the isolation distance (X) between the patient's chest and the cap 700 and the value of the initial chest compression depth (L) is less than the critical value (T) of the chest compression depth (S108-NO), the control unit 320 maintains the patient chest compression step (S103) to compress the patient's chest.

[0155] In contrast, if the value obtained by combining the isolation distance (X) between the patient's chest and the cap 700 and the value of the initial chest compression depth (L) exceeds the critical value (T) of the chest compression depth (S108-YES), the absolute value of the difference between the value obtained by combining the isolation distance (X) and the value of the initial chest compression depth (L) and the critical value (T) of the chest compression depth can be calculated (S109).

[0156] After the absolute value calculation step (S109), the control unit 320 subtracts the absolute value from the value of the chest compression depth (L) to update the value of the chest compression depth (L) (S110).

[0157] After the step (S110) of updating the value of the chest compression depth, the control unit 320 can control the first notification unit 610 so that a message based on the updated value (L) of the chest compression depth is output (S111).

[0158] In the step (S111) of controlling the first notification unit, the message output by the first notification unit 610 includes a first message for notifying that the chest compression start position of the patient has been updated when the chest compression start position of the patient is updated by the first notification unit 610, and a second message for notifying the difference value between the existing chest compression start position of the patient before the update and the updated chest compression start position of the patient. The control unit 320 can control not only the first notification unit 610, but also the LEDs embodied by an LED electronic display board or LED blinking lights, and the visual display device which is a display so that information regarding the first and second messages is output.

[0159] Also, in the step (S111) of controlling the first notification unit, the control unit 320 can communicate with a terminal carried by a user of the emergency treatment device, transmit information regarding the first and second messages to the terminal, and provide it to the user. Thereby, the user can confirm the updated value (L) of the chest compression depth and information regarding the absolute value by the terminal during or after the emergency treatment of the patient.

[0160] After the first and second messages are output one by one, the control unit 320 expands and contracts the piston 310 so that the cap 700 reciprocates in accordance with the updated value (L) of the chest compression depth, and causes the chest compression by the cap 700 to be performed (S112).

[0161] The timing at which the control unit 320 reciprocates the cap 700 is not limited to when the first and second messages are output from the first notification unit 610 one by one. Instead, the piston 310 can be expanded and contracted so that the cap 700 reciprocates in accordance with the updated chest compression depth value (L) immediately after the value (L) of the chest compression depth is updated.

[0162] Hereinafter, during the process of the patient's chest compression depth disappearance correction method (S100), the patient's chest shape will be described in detail.

[0163] FIG. 14 is a diagram for explaining the chest compression start position of a patient according to an embodiment of the present invention, FIG. 15 is a diagram showing the chest shape in a state where the lower end of the cap according to an embodiment of the present invention is in contact, and FIG. 16 is a diagram showing the chest shape in a state where chest compression depth disappearance has occurred during the chest compression process by the cap according to an embodiment of the present invention.

[0164] In the chest compression start position movement step (S101) of the patient, when the chest compression process is performed alone, the control unit 320 expands the cap 700 at the chest compression start position so as to be in contact with the patient's chest (C) as shown in FIG. 14(a). In contrast, when chest compression and electrocardiogram analysis by the hood 300 (analysis of cardiac shock required or unnecessary rhythm) are performed in parallel, the piston 310 can be separated from the patient's chest (C) by a predetermined distance (2 cm) as shown in FIG. 14(b) so that the electrocardiogram analysis is not hindered by the piston 310 and the cap 700 during the electrocardiogram analysis before and after chest compression.

[0165] As shown in FIG. 15, in the chest compression progression steps (S103, S112) by the cap, the piston 310 is expanded by the control unit 320, and the cap 700 is moved from the chest compression start position to contact the patient's chest (C). The cap 700 can compress the patient's chest (C) by the value (L) of the chest compression depth set or updated in the control unit 320 due to the expansion of the piston 310.

[0166] As shown in FIG. 16, in the chest compression progression steps (S103, S112) by the cap, when the cap 700 is to compress the patient's chest (C), the shape of the patient's chest (C) deforms as shown in FIG. 16. Here, the disappearance of the chest compression depth value (L) occurs by the isolation distance (X) between the lower end of the cap 700 and the deformed patient's chest (C), and the patient's chest compression process cannot be accurately performed. Thus, the control unit 320 compares and determines the value (L) of the chest compression depth with the critical value (T) of the chest compression depth, and corrects the disappearance of the chest compression depth by compressing the patient's chest using the set or updated chest compression depth value (L), so that the patient's chest compression process can be accurately performed.

[0167] As described above, a detailed description of the preferred embodiments of the present invention has been provided so that those skilled in the art can embody and implement the present invention. Above, the preferred embodiments of the present invention have been described with reference thereto, but those skilled in the art in the relevant technical field will understand that the present invention can be variously modified and changed without departing from the scope of the present invention. For example, those skilled in the art can use the respective configurations described in the above-described embodiments in a combined manner with each other. Therefore, the present invention is not intended to be limited to the embodiments presented here, but is intended to be given the broadest scope consistent with the principles and novel features disclosed here.

[0168] The present invention can be embodied in other specific forms without departing from the spirit and essential features of the present invention. Therefore, the above detailed description should not be analyzed restrictively in all aspects and should be considered exemplary. The scope of the present invention is determined by a reasonable analysis of the appended claims, and all modifications within the equivalent scope of the present invention are included in the scope of the present invention. The present invention is not intended to be limited to the embodiments shown herein, but rather to confer the broadest scope consistent with the principles and novel features disclosed herein. Also, claims without an explicit citation relationship in the claims can be combined to form embodiments or included as new claims by amendment after filing. Industrial applicability

[0169] The emergency treatment device for patient chest compression and defibrillation and the method for correcting the disappearance of patient chest compression depth according to the present invention correct the disappearance of chest compression depth caused by the change in chest shape occurring during the process of compressing the patient's chest with a cap provided on the emergency treatment device for patient chest compression and defibrillation, so as to ensure that the patient's chest compression is accurately performed, and thus has industrial applicability.

[0170] Also, the emergency treatment device for patient chest compression and defibrillation and the method for correcting the disappearance of patient chest compression depth according to the present invention automate the patient chest compression and defibrillation process. When the value obtained by combining the set initial chest compression depth and isolation distance is less than the critical value of the compression depth, compression is performed at the existing compression depth. When the critical value is exceeded, chest compression is performed at the corrected compression depth, thereby enhancing the accuracy and stability of the patient chest compression and defibrillation process, and thus improving the ease of use for the user during patient chest compression and defibrillation, so it has industrial applicability.

[0171] Furthermore, the emergency treatment device for patient chest compression and defibrillation and the method for correcting the disappearance of patient chest compression depth according to the present invention periodically detect whether there is a change in the chest compression start position, audibly / visually notify the user of the change in the patient's chest shape, and can update the chest compression start position, thus ensuring the convenience of the user, so it has industrial applicability.

Claims

1. A support plate for supporting the patient's back, a support base with one end and the other end connected to both edges of the support plate, a hood connected to one side of the support base and disposed above the upper part of the patient's chest, to which a piston for compressing the patient's chest is connected, After setting the value of the chest compression start position of the patient at which the patient's chest compression starts at the lower end of the piston, the piston is expanded or contracted so that the lower end of the piston is moved to the chest compression start position according to the value of the chest compression start position, and the value of the initial chest compression depth, which is the moving length value of the piston in the upward direction of the support plate from the chest compression start position, and the critical value of the chest compression depth are applied to expand and contract the piston so that chest compression is performed. During chest compression, the change in the patient's chest shape is sensed, the chest compression start position of the patient is updated, and the combined value of the isolation distance between the cap fastened to the lower end of the piston and the patient's chest and the value of the initial chest compression depth is compared with the critical value of the chest compression depth to make a judgment. The piston is expanded and contracted so that the cap reciprocates according to the value of the initial or updated chest compression depth, and a control unit for performing chest compression by the cap is included. An emergency treatment device for chest compression and defibrillation of a patient, characterized in that it comprises the above.

2. A first storage unit in which information on the chest compression start position at which the piston returns after completing chest compression and relaxation of the patient is already stored, a sensor that senses the current position of the piston in real time and generates the current position information of the piston. The emergency treatment device for chest compression and defibrillation of a patient according to claim 1, characterized in that it comprises the above.

3. The first storage unit stores the start time information for starting the electrocardiogram analysis of the patient and the end time information for ending the electrocardiogram analysis of the patient. The emergency treatment device for chest compression and defibrillation of a patient according to claim 2, characterized in that it comprises the above.

4. Before the electrocardiogram analysis of the patient, the control unit uses the chest compression start position information to move the lower end of the piston to the chest compression start position, and determines whether the current position information of the piston received from the sensor matches the chest compression start position. The emergency treatment device for chest compression and defibrillation of a patient according to claim 2, characterized in that the lower end of the piston is arranged relatively above the chest compression start position so that the piston is in a standby state.

5. The control unit is provided with a plurality of buttons for respectively setting the chest compression mode, chest compression depth, and chest compression frequency of the piston. The emergency treatment device for chest compression and defibrillation of a patient according to claim 4, characterized in that after analyzing the electrocardiogram of the patient, the piston is controlled so that the chest of the patient is compressed and relaxed in accordance with the settings by the buttons from the chest compression start position.

6. Before the control unit compresses and relaxes the chest of the patient in accordance with the settings by the buttons, when the piston descends by the chest compression depth set by the buttons, in order to compress the chest of the patient, the emergency treatment device for chest compression and defibrillation of a patient according to claim 5, characterized in that the interval between the lower end of the piston and the chest of the patient is maintained at a predetermined interval to optimize the chest compression start position of the patient.

7. The emergency treatment device for chest compression and defibrillation of a patient according to claim 6, characterized in that the control unit optimizes the chest compression start position of the patient by updating the chest compression start position of the patient at regular intervals.

8. After the control unit moves the lower end of the piston to the chest compression start position, it determines whether the current position information of the piston received from the sensor matches the current position of the piston. The emergency treatment device for chest compression and defibrillation of a patient according to claim 7, characterized in that when the control unit receives the electrical information used by the motor for driving the piston and the current position information of the piston from the sensor and senses a change in the chest compression start position of the patient, it updates the chest compression start position of the patient.

9. The sensor is provided in the drive circuit of the motor. When the lower end of the piston contacts the chest surface of the patient at regular intervals, it uses the difference in electrical information to sense whether the chest shape of the patient can be changed, and includes a first sensing sensor that transmits whether the chest shape of the patient can be changed to the control unit. The emergency treatment device for chest compression and defibrillation of a patient according to claim 8.

10. The sensor according to claim 8, wherein the sensor includes a second sensing sensor that senses the rotation speed of the motor and the moving distance of the piston, generates moving distance information of the piston, and transmits the piston moving distance information to the control unit. The emergency treatment device for chest compression and defibrillation of a patient.

11. When the chest compression start position of the patient is updated, a first message for notifying that the chest compression start position of the patient has been updated, and a difference value between the existing patient's chest compression start position before the update and the updated patient's chest compression start position. The emergency treatment device for chest compression and defibrillation of a patient according to claim 8, further comprising a first notification unit that outputs a second message for notifying the difference value.

12. The first notification unit includes a third message when the difference value between the existing patient's chest compression start position and the updated patient's chest compression start position is equal to or greater than a specific critical value, and when the chest compression start position of the patient is updated. A fourth message for requesting the user to select the chest compression depth and the number of chest compressions of the piston, and a fifth message for notifying the user that the chest shape of the patient has changed when a change in the chest shape of the patient is sensed from the first sensing sensor. The emergency treatment device for chest compression and defibrillation of a patient according to claim 11, characterized in that each of the messages is output.

13. After the control unit outputs the fourth message from the first notification unit, when the chest compression depth and the number of chest compressions are selected through the plurality of buttons, the control unit updates the chest compression depth and the number of chest compressions. The emergency treatment device for chest compression and defibrillation of a patient according to claim 12.

14. An LED or an LED realized by an LED electric light display board or an LED blinking lamp for visually outputting at least one of the first to fifth messages output from the first notification unit, and a visual display device provided with a display. The emergency treatment device for chest compression and defibrillation of a patient according to claim 13.

15. The hood is characterized in that it is configured to move by sliding the support base. The emergency treatment device for chest compression and defibrillation of a patient according to claim 1.

16. The emergency treatment device for chest compression and defibrillation of a patient according to claim 1, wherein the support plate includes a band provided with a pair of cuffs on the sides for wrapping the upper part of the arm including the elbow of the patient to fix the patient's arm while the chest compression of the patient is being performed.

17. A method for correcting the disappearance of chest compression depth performed on an emergency treatment device for chest compression and defibrillation of a patient, comprising: a) After setting, by a control unit, a value of a chest compression start position of a patient at which chest compression of the patient is started at a lower end of a piston disposed above the patient's chest, expanding or contracting the piston so that the lower end of the piston moves to a chest compression start position according to the value of the chest compression start position of the patient; b) Applying, by the control unit, a value of an initial chest compression depth, which is a moving length value of the piston from the chest compression start position of the patient toward an upper side of a support plate that supports the patient's back, and a critical value of chest compression depth, expanding and contracting the piston so that chest compression is performed, and during the progress of chest compression, sensing a change in the patient's chest shape and updating the chest compression start position of the patient; c) A step of comparing and determining, by the control unit, a value obtained by combining a separation distance between a cap fastened to the lower end of the piston and the patient's chest and the value of the initial chest compression depth with a critical value of chest compression depth; d) Expanding and contracting the piston so that the cap reciprocates according to the value of the initial or updated chest compression depth, so that chest compression by the cap is performed. A method for correcting the disappearance of chest compression depth of a patient, characterized by including the above steps.

18. The step a) is characterized in that, after the control unit receives a position value of the lower end of the piston from a first sensing sensor, adding a pre-input width value of a first housing disposed between the lower end of the piston and the patient's chest to the position value of the lower end of the piston to determine the current position of the piston, determining whether the determined current position of the piston is the same as the chest compression start position, and expanding or contracting the piston so that the determined current position of the piston becomes the same as the value of the chest compression start position. The method for correcting the disappearance of chest compression depth of a patient according to claim 17.

19. The step b) is b-1) While the first sensing sensor senses whether the chest shape of the patient can be changed by using the difference in electrical information when the lower end of the piston comes into contact with the chest surface of the patient during chest compression by the piston; b-2) When the chest shape of the patient changes, notifying the user of whether the chest shape of the patient can be changed by the first notification unit; b-3) The method for correcting the disappearance of the chest compression depth of a patient according to claim 18, comprising: when the user inputs a signal to an adaptive length change button for updating the chest compression start position of the patient, the control unit updates the chest compression start position of the patient.

20. The step d) is as follows: d-1) When the combined value of the initial chest compression depth value and the isolation distance value exceeds the critical value of the chest compression depth, the control unit calculates the absolute value of the difference between the combined value of the isolation distance value and the initial chest compression depth value and the critical value of the chest compression depth; d-2) The control unit subtracts the absolute value from the chest compression depth value to update the chest compression depth value; d-3) Controlling the first notification unit so that a message based on the updated chest compression depth value is output; d-4) After the control unit outputs the message, expanding and contracting the piston so that the cap reciprocates according to the updated chest compression depth value, so that chest compression by the cap is performed. The method for correcting the disappearance of the chest compression depth of a patient according to claim 19, characterized by including the above steps.

21. The first notification unit sequentially and repeatedly outputs a first message for notifying that the chest compression start position of the patient has been updated when the chest compression start position of the patient is updated until the user of the emergency treatment device inputs a signal to the control unit, and a second message for notifying the difference value between the existing chest compression start position of the patient before the update and the updated chest compression start position of the patient, and transmits information on the first message and the second message to the control unit in real time. The method for correcting the disappearance of the chest compression depth of a patient according to claim 20, characterized by the above.

22. When the first and second messages are output one by one, the control unit expands or contracts the piston so that the cap reciprocates in accordance with the updated value of the chest compression depth, and causes chest compression by the cap. The method for correcting disappearance of chest compression depth of a patient according to claim 21, characterized in that.

23. In the step d), when the combined value of the isolation distance between the chest of the patient and the cap and the initial chest compression depth is less than the critical value of the chest compression depth, the control unit adjusts the piston so that the cap reciprocates in accordance with the set value of the chest compression depth. The method for correcting disappearance of chest compression depth of a patient according to claim 17, characterized in that chest compression by the cap is performed by expanding and contracting.

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