Head-up device for cardiopulmonary resuscitation using airbag, head-up system including backboard for cardiopulmonary resuscitation, and method of controlling head-up device

Abstract

The present invention relates to a device for supporting the head of a patient during cardiopulmonary resuscitation and, more specifically, to a head-up system for cardiopulmonary resuscitation using an airbag and a method of controlling same. The head-up system is configured such that the patient's head is positioned higher than the heart to increase cerebral perfusion pressure and cerebral blood flow during cardiopulmonary resuscitation while the patient's head is tilted horizontally to prevent neck flexion so as to maintain airway and vascular patency. In addition, the head-up system is configured such that the compressive force applied to the chest during cardiopulmonary resuscitation is not absorbed or reduced.

Description

Head-up device for cardiopulmonary resuscitation using airbag, head-up system for cardiopulmonary resuscitation equipped with backboard, and control method of head-up device

[0001] The present invention relates to a device for supporting a patient's head during cardiopulmonary resuscitation, and more particularly, to a head-up device for cardiopulmonary resuscitation using an airbag configured to position the patient's head higher than the heart so as to increase cerebral perfusion pressure and cerebral blood flow during cardiopulmonary resuscitation, while simultaneously tilting the patient's head backward to open the airway and blood vessels, and configured so that the force for compressing the chest during cardiopulmonary resuscitation is not absorbed, a head-up system for cardiopulmonary resuscitation equipped with a backboard, and a control method for the head-up device.

[0002]

[0003] Cross-reference to related applications

[0004] This application claims priority to Republic of Korea Patent Application No. 10-2024-0011151, filed January 24, 2024, the entire contents of which are incorporated herein by reference.

[0005]

[0006] Chest compressions performed in the supine position, the standard CPR chest compression position, are common. Supine chest compressions in CPR increase blood volume and pressure in the arterial system and the right heart, which are then delivered to the brain via the jugular vein and paravertebral venous plexus. This increased blood volume and pressure increases intracranial pressure, reducing cerebral perfusion.

[0007] Intracranial pressure is typically elevated in patients in the supine position, and head elevation is commonly performed as a noninvasive method to reduce intracranial pressure in patients with traumatic brain injury.

[0008] Head-up CPR increases venous return from the brain to the heart, driven by gravity, reducing intracranial pressure and improving cardiac preload. Furthermore, several recent studies have shown that head-up CPR reduces intracranial perfusion, thereby increasing cerebral perfusion pressure and blood flow.

[0009] In one aspect, the present invention is intended to solve the problems of the prior art as described above, and provides a head-up device for cardiopulmonary resuscitation using an airbag, a head-up system for cardiopulmonary resuscitation equipped with a backboard, and a control method for the head-up device, which can improve the neurological prognosis of a patient by tilting the patient's head backward while positioning the patient's head higher than the heart to open the airway and blood vessels so as to increase cerebral perfusion pressure and cerebral blood flow during cardiopulmonary resuscitation.

[0010] In another aspect, the present invention aims to provide a head-up device for cardiopulmonary resuscitation using an airbag, a head-up system for cardiopulmonary resuscitation equipped with a backboard, and a control method for the head-up device, which enable a patient to assume a stable head-up posture and perform precise emergency treatment by measuring the patient's cerebral blood flow in real time.

[0011] In another aspect, the present invention provides a head-up system for cardiopulmonary resuscitation using an airbag, which is configured to prevent pressure from being absorbed and reduced so that the pressure applied to the chest can be smoothly transmitted to the heart when cardiopulmonary resuscitation is performed while tilting the patient's head backward to open the airway and blood vessels, thereby increasing the survival rate through cardiopulmonary resuscitation, and is configured to reduce the volume and weight to increase mobility and storage, and a control method thereof.

[0012] In order to achieve the above-described purpose, a head-up device for cardiopulmonary resuscitation according to the present invention is characterized by including at least one air bag that supports the head of a lying patient and lifts the patient's head by inflating with injected air.

[0013] In addition, according to a preferred embodiment of the present invention, a head-up device for cardiopulmonary resuscitation includes a tilting airbag that supports a patient's head, and a lift airbag that is positioned below the tilting airbag and pushes the tilting airbag upward when inflated.

[0014] Additionally, according to a preferred embodiment of the present invention, a groove is formed on the upper surface of the tilting airbag in which a patient's head can be placed.

[0015] In addition, according to a preferred embodiment of the present invention, one side of the bottom surface of the tilting airbag and one side of the top surface of the lifting airbag are connected, and the other side of the bottom surface of the tilting airbag and the other side of the lifting airbag are formed with corresponding inclined surfaces.

[0016] In addition, according to a preferred embodiment of the present invention, the bottom surface of the tilting airbag is relatively high on one side and low on the other side, and a slope is formed in the middle portion between the one side and the other side.

[0017] In addition, according to a preferred embodiment of the present invention, one side of the upper surface of the lift airbag is connected to the tilting airbag, and an inclined surface is formed from the connecting portion to the other side.

[0018] In addition, according to a preferred embodiment of the present invention, while the lift airbag is inflated, the tilting airbag is tilted by the weight of the patient's head, and the inclined surface of the tilting airbag and the inclined surface of the lift airbag come into contact with each other.

[0019] In addition, according to a preferred embodiment of the present invention, the head-up device for cardiopulmonary resuscitation includes an air pump that compresses air and selectively or simultaneously injects it into a tilting airbag and a lift airbag, a plurality of air lines that respectively connect the air pump and the tilting airbag and the air pump and the lift airbag, a valve that controls the injection and blocking of compressed air through each air line, a control unit that controls the operation of the head-up device for cardiopulmonary resuscitation, and a power supply unit that supplies power necessary for the operation of the head-up device for cardiopulmonary resuscitation.

[0020] In addition, according to a preferred embodiment of the present invention, a head-up device for cardiopulmonary resuscitation includes a base plate, and a tilting air bag, a lift air bag, an air pump, an airline, a control unit, and a power supply unit are mounted on the base plate.

[0021] In addition, according to a preferred embodiment of the present invention, a chin protrusion is formed at the edge of the groove of the tilting airbag to contact the patient's chin, and the chin protrusion contacts the chin when the patient's head is placed inside the groove.

[0022] In order to achieve the above-described purpose, the head-up device for cardiopulmonary resuscitation according to the present invention is characterized by including a head-up device having a groove formed to accommodate the head of a patient lying supine and an airbag that can expand and contract to tilt the patient's neck backward while lifting the head upward, and a backboard that supports the patient so that the patient can lie supine and is equipped with the head-up device.

[0023] Additionally, according to a preferred embodiment of the present invention, a head-up device is mounted on one side of the upper surface of the backboard.

[0024] In addition, according to a preferred embodiment of the present invention, a groove is formed on one side of the upper surface of the backboard in which a head-up device is positioned, and the head-up device is mounted on the bottom of the groove.

[0025] Additionally, according to a preferred embodiment of the present invention, a plurality of empty spaces are formed inside the backboard, and a plurality of ribs connect the inner upper surface and the lower surface of the backboard.

[0026] Additionally, according to a preferred embodiment of the present invention, among the plurality of empty spaces, some of the empty spaces are opened upward, and a cover covers the open upper portion of the empty space to form a storage compartment.

[0027] Additionally, according to a preferred embodiment of the present invention, the cover is secured by fastening a piece penetrating the cover to the backboard.

[0028] In addition, according to a preferred embodiment of the present invention, the cover is hingedly connected to the outer wall of the empty space forming the storage portion, and one of a projection and a groove that can be mutually fastened or unfastened is formed on an end of the cover corresponding to the inner wall of the empty space forming the storage portion while the cover is covering the storage portion, and the other is formed on the inner wall.

[0029] Additionally, according to a preferred embodiment of the present invention, the storage portion is formed on one or both sides of the home.

[0030] Additionally, according to a preferred embodiment of the present invention, when the patient's head is placed on the head-up device, the backboard supports the patient's chest.

[0031] Additionally, according to a preferred embodiment of the present invention, when the patient's head is placed on the head-up device, the backboard supports the patient's buttocks.

[0032] In addition, according to a preferred embodiment of the present invention, the head-up device includes a tilting airbag that supports a patient's head, and a lift airbag that is positioned below the tilting airbag and pushes the tilting airbag upward when inflated, and while the lift airbag is inflated, the tilting airbag is tilted by the weight of the patient's head, and an inclined surface formed in the tilting airbag and an inclined surface formed in the lift airbag come into contact with each other.

[0033] The present invention, which aims to achieve the above object, is a control method for a head-up device that tilts the head of a patient lying down while lifting the head of the patient so that the patient's neck is tilted backwards, and is characterized by including a step of injecting air into an airbag that supports the patient's head, and a step of blocking the air injection when the patient's head is lifted upward by the inflating airbag and the air pressure of the airbag is higher than a set pressure.

[0034] Additionally, according to a preferred embodiment of the present invention, the step of injecting air includes the step of injecting air into a tilting airbag that supports the patient's head, and the step of injecting air into a lifting airbag located below the tilting airbag to push the tilting airbag upward.

[0035] Additionally, according to a preferred embodiment of the present invention, the tilting airbag is tilted by the weight of the patient's head while the lift airbag is inflated.

[0036] In addition, according to a preferred embodiment of the present invention, when the tilting airbag is tilted, the lift airbag expands further by the injected air, and when the air pressure of the lift airbag is higher than the set pressure, the air injection is blocked.

[0037] Additionally, according to a preferred embodiment of the present invention, when the air pressure of the lift airbag exceeds the set pressure, the patient's shoulder is lifted.

[0038] As previously described, the head-up system and control method for CPR according to the present invention can increase cerebral perfusion pressure and cerebral blood flow by positioning the patient's head higher than the level of the heart during CPR. In this state, the tilting airbag tilts to support and maintain the patient's head, which is tilted backwards, thereby opening the patient's airway and blood vessels, improving the patient's neurological prognosis and preventing asphyxiation.

[0039] In this way, when a patient with an open airway or blood vessel is positioned lying on a backboard, the force of chest compression is fully transmitted to the heart during CPR, and the pressure is prevented from being absorbed by the ground or other objects, thereby increasing the survival rate from CPR.

[0040] In addition, the present invention has the advantage of being lightweight by supporting and tilting the patient's head using airbags, and being able to be easily stored and moved with the airbags deflated when not in use.

[0041] Furthermore, the head-up device according to the present invention can be configured to selectively or simultaneously inflate the tilting airbag and the lift airbag, enabling rapid operation and precise control depending on the patient's condition. Furthermore, by detecting when the patient's shoulders are lifted and halting the airbag inflation, the device maintains the shoulders and chest in contact with the backboard, ensuring that the pressure applied during CPR is fully transmitted to the heart.

[0042] Figure 1 is a perspective view showing a head-up device for cardiopulmonary resuscitation using an airbag according to the present invention.

[0043] Figure 2 is a front view showing a head-up device for cardiopulmonary resuscitation with the airbags shown in Figure 1 in a deflated state.

[0044] Figure 3 is a front view of a head-up device for cardiopulmonary resuscitation showing the state in which air is injected into the tilting airbag illustrated in Figure 2.

[0045] Fig. 4 is a front view of a head-up device for cardiopulmonary resuscitation showing a state in which air is injected into the lifting airbag illustrated in Fig. 3.

[0046] Figure 5 is a front view showing the patient's head positioned in the tilting airbag illustrated in Figure 3.

[0047] Figure 6 is a conceptual diagram showing the positional relationship of a patient's head during the process of injecting air into the lifting airbag of the head-up device for cardiopulmonary resuscitation illustrated in Figure 5.

[0048] Figure 7 is a perspective view showing a head-up system for cardiopulmonary resuscitation according to the present invention.

[0049] Figure 8 is a plan view of the head-up system for cardiopulmonary resuscitation shown in Figure 7.

[0050] Fig. 9 is a cross-sectional view of the head-up system illustrated in Fig. 7,

[0051] Fig. 10 is a conceptual diagram showing the storage section of the backboard illustrated in Fig. 7.

[0052] Fig. 11 is a cross-sectional view of a backboard for showing a storage section as a modified example of the backboard illustrated in Fig. 7.

[0053]

[0054] In this specification, the term "patient" is not necessarily limited to a literal patient, and is not particularly limited to any subject to which the head-up system for CPR can be applied. For example, a subject who is not an actual patient but acts as a patient, such as when practicing CPR using this device, is also included within the meaning of "patient." It should be understood that the scope of the present invention is not necessarily limited to a literal patient.

[0055] Below, a preferred embodiment of a head-up system for cardiopulmonary resuscitation according to the present invention is described in detail with reference to the attached drawings.

[0056] FIG. 7 is a perspective view showing a head-up system for cardiopulmonary resuscitation according to the present invention, FIG. 8 is a plan view of the head-up system for cardiopulmonary resuscitation shown in FIG. 7, FIG. 9 is a longitudinal cross-sectional view of the head-up system shown in FIG. 7, and FIG. 10 is a conceptual diagram showing a storage portion of the backboard shown in FIG. 7.

[0057] As illustrated in FIGS. 7 to 10, a head-up system for cardiopulmonary resuscitation includes a backboard (200) on which a patient can lie, and a head-up device (100) in which the patient's head is positioned so that the patient's head can be maintained in a state of being tilted backward after or while lifting the head of the patient lying on the backboard (200), and the head-up device (100) is fixed to one side of the backboard (200).

[0058] In this way, when the head-up device (100) is mounted on one side of the backboard (200), the backboard (200) has a length that can support at least the patient's chest. The preferred length of the backboard is to support the patient's chest to the buttocks while the patient's head is supported by the head-up device (100). In some cases, the backboard can be configured to support the chest or the entire body including the patient's feet. However, in order for cardiopulmonary resuscitation to be performed effectively, the backboard can be configured to have a length that supports at least the patient's head to the chest.

[0059] The backboard (200) is made of a high-strength synthetic resin material, and it is desirable to have a strength that is not damaged by the pressure applied during cardiopulmonary resuscitation or when the backboard (200) is used as a stretcher to move a patient. In order to reduce weight, the interior of the backboard (200) is formed as an empty space (201), and ribs (203) connecting the upper and lower parts of the backboard (200) are formed at intervals within the empty space (201) to withstand the load and pressure, so that it can sufficiently withstand the vertical load, i.e. the pressure applied during cardiopulmonary resuscitation or the weight of the patient.

[0060] Meanwhile, a groove (210) is formed on one upper surface of the backboard (200).

[0061] Here, the home (210) is a seat on which the head-up device (100) is to be mounted, and the head-up device (100) is fixed to the backboard (200) with the head-up device (100) mounted on the bottom surface of the home (210). Here, the head-up device (100) will be described in detail later, and below, the configuration of the backboard (200) will be described in detail.

[0062] As shown in Figures 7 to 10, the backboard (200) has a width and length that allow a patient to lie down. As previously described, the length is long enough to support the patient's chest and above while the patient's head is placed on the head-up device (100), and the width is preferably wider than the patient's shoulders.

[0063] The backboard (200) configured in this manner is made of a lightweight plastic material with empty spaces (201) formed inside, and ribs (203) connecting the upper and lower parts are formed at intervals inside the backboard (200) to increase resistance to vertical load.

[0064] Meanwhile, a square groove (210) is formed at a predetermined depth in the center of one side of the upper surface of the backboard (200). A head-up device (100) is mounted on the bottom surface of the square groove (210), and the base plate (160) of the head-up device (100) is fixed while mounted on the bottom surface of the groove (210).

[0065] And as illustrated in FIG. 10, a storage section (220) is formed as an empty space inside the backboard (200) outside the groove (210) with both sides of the groove (210) as the boundary, and a cover (221) is provided to cover the open upper surface of the storage section (220). The cover (221) is fixed to the backboard (200) with a piece (223) or the like while covering the upper part of the storage section (220) of the backboard (200) that is open to both sides of the groove (210). Therefore, if necessary, the cover (221) can be disassembled, and parts necessary for emergency activities or parts necessary for the operation of the head-up device (100) are positioned or fixed in the storage section (220), and then the cover (221) is mounted, thereby utilizing the internal empty space (201) of the backboard (200) as a storage section (220).

[0066] In this way, the backboard (200) reduces the weight of the backboard (200) by forming a storage section (220) that can be opened on both sides of the home (210) in which the head-up device (100) is fixed, and at the same time, parts necessary for the operation of the head-up device (100), such as the battery and air pump (130), which are the power supply section (170), are located within the storage section (220), thereby protecting the power supply section (170) and air pump (130), etc., from the external environment, and reducing the components exposed to the outside of the backboard (200), thereby simplifying the external appearance.

[0067] Meanwhile, although not shown in the drawing, the backboard (200) may be provided with handle grooves on both sides of the length direction so that it can be carried and moved, and the upper surface of the backboard (200) may be formed into a curved surface that fits the human body structure so that the patient can be more comfortable when lying on the backboard (200).

[0068] The head-up system for cardiopulmonary resuscitation according to the present invention, which is described in this way, is configured so that the cover (221) of the backboard (200) is detachable, and the cover (221) can be attached and detached to the backboard (200) by a piece (223), etc. However, in some cases, as shown in FIG. 11, the cover (221) can be hinged to the backboard (200) body and rotated to open or close the storage portion (220) by fastening and releasing the fastening.

[0069] In the drawing, Fig. 11 is a cross-sectional view of a backboard for showing a storage section as a modified example of the backboard shown in Fig. 7.

[0070] As illustrated in Fig. 11, the storage section (220) of the backboard (200) is opened and closed by a cover (221). One side of the cover (221) is hinge-connected to the outer wall (225) of the storage section (220) of the backboard (200) and pivots around the hinge point (230) to open or close the storage section (220). An elastic protrusion (228) is formed on one side of the cover (221) configured in this manner, and a protrusion groove (229) is formed on the inner wall (226) of the storage section (220) to correspond to the elastic protrusion (228) when the cover (221) closes the storage section (220).

[0071] Accordingly, when the cover (221) is rotated to cover and close the storage portion (220), the elastic protrusion (228) aligns with the protrusion groove (229) and the cover (221) is fastened to the backboard (200). Thereafter, when the user widens the space between the inner wall (226) where the protrusion groove (229) is formed and the cover (221), the elastic protrusion (228) is detached from the protrusion groove (229) and the cover (221) is rotated so that the storage portion (220) can be opened.

[0072] Below, the head-up device (100) is described in detail.

[0073] In the drawings, Fig. 1 is a perspective view showing a head-up device for cardiopulmonary resuscitation using an airbag according to the present invention, Fig. 2 is a front view showing the head-up device for cardiopulmonary resuscitation showing the airbags shown in Fig. 1 in a deflated state, and Fig. 3 is a front view of the head-up device for cardiopulmonary resuscitation showing the state in which air is injected into the tilting airbag shown in Fig. 2, and Fig. 4 is a front view of the head-up device for cardiopulmonary resuscitation showing the state in which air is injected into the lifting airbag shown in Fig. 3. Fig. 5 is a front view showing the state in which the patient's head is placed on the tilting airbag shown in Fig. 3, and Fig. 6 is a conceptual diagram showing the positional relationship of the patient's head during the process of injecting air into the lifting airbag of the head-up device for cardiopulmonary resuscitation shown in Fig. 5.

[0074] As illustrated in FIGS. 1 to 6, a head-up device (100) for cardiopulmonary resuscitation includes a tilting airbag (110) having a groove (111) formed on the upper surface so as to be able to wrap around the back of the head, neck, and both sides of the jaw of a patient, a lift airbag (120) that is fixed to a portion of the lower surface of the tilting airbag (110) and can be expanded or contracted so as to allow the tilting airbag (110) to move up and down, an air pump (130) that compresses and supplies air so as to selectively or simultaneously inject air into the tilting airbag (110) and the lift airbag (120), and a battery that is a power supply unit (170) that supplies power necessary for the operation of the head-up device (100) for cardiopulmonary resuscitation.

[0075] Meanwhile, the head-up device (100) illustrated in FIGS. 1 to 6 is illustrated as having a tilting airbag (110), a lift airbag (120), an air pump (130), a control unit (140), and a power supply unit (170) mounted on a base plate (160). However, as illustrated in FIGS. 7 to 11, the tilting airbag (110) and the lift airbag (120) may be mounted on the base plate (160), and the air pump (130), the control unit (140), and the power supply unit (170) may be configured to be located in the storage unit (220) of the backboard (200).

[0076] Below, the head-up device (100) illustrated in FIGS. 1 to 6 is described in more detail.

[0077] When the head of a patient requiring cardiopulmonary resuscitation is placed in the groove (111) of the tilting airbag (110) and the air pump (130) is operated, air is first injected into the tilting airbag (110) and then into the lift airbag (120), so that the patient's head is positioned higher than the level of the heart. As the patient's head is positioned higher than the level of the heart, cerebral perfusion pressure and cerebral blood flow can be increased. However, if the head is raised while the patient is lying flat, the patient's neck may bend forward, which may block the airway or blood vessels. That is, when air is injected into the tilting airbag (110), the tilting airbag (110) expands and the neck is raised in a forward-tilted state according to the bottom structure of the tilting airbag (110), and in this state, when air is injected into the lift airbag (120), the expanded tilting airbag (110) rises upward and the tilting airbag (110) is tilted toward the inclined surface (123) of the lift airbag (120), and in that state, it is pushed upward by the expansion of the lift airbag (120). Therefore, when air is first injected into the tilting airbag (110) and then air is injected into the lift airbag (120), the patient's head rises upward in a tilted state in which the crown of the head is lower than the chin, thereby opening the patient's airway or blood vessels.

[0078] Therefore, the head-up device (100) for cardiopulmonary resuscitation according to the present invention is configured to open the airway and blood vessels by positioning the patient's head higher than the position of the heart and tilting the patient's head backward, and to increase cerebral perfusion pressure and cerebral blood flow while preventing occlusion of the airway or blood vessels by performing cardiopulmonary resuscitation in this state.

[0079] To this end, a groove (111) is formed on the upper surface (110H) of the tilting airbag (110) so that the tilting airbag (110) can wrap around the back of the head, neck, and both sides of the jaw of a patient lying down. A cushion part (not shown) made of silicone material that is more flexible than the tilting airbag (110) is attached to the inside of the groove (111), so that the head of the patient placed in the groove (111) can be protected by the cushion part.

[0080] A chin protrusion (111P) that contacts the chin on both sides is formed at the edge of the groove (111) of the tilting airbag (110). The chin protrusion (111P) contacts the chin when the patient's head is placed inside the groove (111), thereby forming an air passage between the patient's head and the groove (111). When the patient's neck is tilted back, the chin protrusion (111P) is configured to push up the patient's chin area. The chin protrusion (111P) also has a cushion portion (not shown) attached thereto as described above, so that the chin does not directly contact the tilting airbag (110), thereby minimizing pressure when the chin protrusion (111P) of the inflated tilting airbag pushes up the chin.

[0081] When the patient's head is positioned in the groove (111) of the tilting airbag (110), and the direction toward which the crown of the head faces is referred to as the front end, the front end bottom surface of the tilting airbag (110) is low and the rear end bottom surface of the tilting airbag (110) is high, so that an inclined surface (113) is formed on the middle bottom surface between the front end and the rear end of the tilting airbag (110).

[0082] And the rear bottom surface of the tilting airbag (110) is connected to the lift airbag (120) located below.

[0083] Meanwhile, as shown in Fig. 6, the upper surface of the lift airbag (120) is connected to the lower surface of the rear end of the tilting airbag (110). In addition, the lift airbag (120) is formed with a slope (123) that becomes lower as it goes toward the front end from the connecting portion (115) connected to the tilting airbag (110).

[0084] As described above, in order to position the patient's head in the groove (111) of the tilting airbag (110), the lift airbag (120) is deflated, air is injected into the tilting airbag (110), and the patient's head is positioned in the groove (111) of the tilting airbag (110) while it is inflated. At this time, when the tilting airbag (110) having an inclined surface (113) formed on the bottom is inflated and the patient's head is positioned thereon, the patient's neck is tilted forward by the inclined surface (113), but when air is injected into the lift airbag (120), the lift airbag (120) is inflated and the tilting airbag (110) moves upward, and the patient's head and neck are positioned horizontally. In this state, when more air is injected into the lift airbag (120), the tilting airbag (110) is tilted downward at the front end due to the weight of the patient's head. In this state, the patient's head is raised upward by the lift airbag (120).

[0085] When the tilting airbag (110) is tilted, the inclined surface (113) formed on the bottom of the tilting airbag (110) and the corresponding inclined surface (123) of the lift airbag (120) come into contact. As the inclined surface (113) of the tilting airbag (110) and the inclined surface (123) of the lift airbag (120) come into contact, the patient's neck is tilted backward, and in this state, the patient's head moves upward due to the expansion of the lift airbag (120).

[0086] As the patient's head continues to move upward due to the expansion of the lift airbag (120), the patient's shoulder is lifted. However, before the patient's shoulder is lifted, the air injected into the lift airbag (120) must be blocked to maintain the inflated state of the lift airbag (120).

[0087] The head-up device (100) according to the present invention operates the air pump (130) according to a sequence programmed in the control unit (140), and the compressed air generated by the operation of the air pump (130) can be selectively injected into the tilting airbag (110) and the lift airbag (120) through flexible airlines (131T, 131L) connected from the air pump (130) to each airbag (110, 120), or injected simultaneously but with different amounts of air. This is configured so that the control unit (140) can control the opening and closing of the valves (133T, 133L) mounted on each airline (131T, 131L), thereby controlling the amount of air injected into each airbag (110, 120), i.e., the air pressure, thereby controlling the expansion and contraction of the airbags (110, 120) and the intensity of the expansion state of the airbags (110, 120).

[0088] Meanwhile, the power required for the operation of the control unit (140), air pump (130), and valves (133T, 133L) is provided from a charged power supply unit (170).

[0089] Below, we describe in detail the control method of a head-up system for CPR that operates in this manner.

[0090] If it is determined that the patient requires cardiopulmonary resuscitation, an operating signal is input to the control unit (140) through an input means such as a switch.

[0091] When an operating signal is input to the control unit (140), the control unit (140) first operates the air pump (130) and opens the valve (133T) mounted on the airline (131T) extended to the tilting airbag (110) to inject compressed air into the tilting airbag (110). As the compressed air is injected, the tilting airbag (110) expands, and when the internal pressure of the tilting airbag (110) is measured in real time by the pressure sensor (135T), if the internal pressure is higher than the set pressure, the control unit (140) closes the valve (133T) to maintain the tilting airbag (110) in an expanded state. A groove (111) is formed on the upper surface of the inflated tilting airbag (110) to accommodate the patient's head.

[0092] Medical staff or paramedics place the patient's head in the groove (111) of the tilting airbag (110) and set the position of the patient's head so that the patient's chin is in contact with the chin protrusion (111P) of the tilting airbag (110). At this time, there is no significant difference in height between the patient's head and the heart.

[0093] Thereafter, the control unit (140) operates the air pump (130) for the second time, opens the valve (133L) mounted on the airline (131L) extended to the lift airbag (120), and injects compressed air into the lift airbag (120). As the compressed air is injected, the lift airbag (120) expands, and the patient's head is pushed upward together with the tilting airbag (110) by the expansion of the lift airbag (120).

[0094] At this time, the center of gravity of the patient's head is located closer to the tip than the connecting portion (115) of the tilting airbag (110) and the lift airbag (120), so when the lift airbag (120) expands, the tilting airbag (110) tilts as its tip moves downward, and when the tilting airbag (110) tilts, the inclined surface (113) of the tilting airbag (110) and the inclined surface (123) of the lift airbag (120) come into contact.

[0095] In this way, before the lift airbag (120) is inflated, the patient's head and neck are positioned horizontally or with the neck tilted forward due to the expansion of the tilting airbag (110), but when the lift airbag (120) is inflated, the tilting airbag (110) and the patient's head are tilted downwards, and in the tilted state, the tilting airbag (110) and the patient's head are pushed upwards due to the expansion of the lift airbag (120).

[0096] Even at this time, compressed air is continuously injected into the lift airbag (120), and when the pressure measured by the pressure sensor (135L) that measures the pressure of the lift airbag (120) is higher than the set pressure, the pressure sensor (135L) inputs a signal to the control unit (140), and the control unit (140) closes the valve (133L) of the airline (131L) and stops the operation of the air pump (130) in order to block the injection of air into the lift airbag (120) based on the signal input from the pressure sensor (135L).

[0097] When the patient's head rises upward due to the inflation of the lift airbag (120), and the load of the patient's chest connected to the neck is applied to the lift airbag (120), the pressure of the lift airbag (120) increases. Therefore, if the pressure of the lift airbag (120) exceeds the set pressure, it means that the patient's chest is lifted. If the chest is lifted in this way, the pressure applied during cardiopulmonary resuscitation to be performed later is absorbed, making it impossible to perform effective cardiopulmonary resuscitation. Therefore, in order to prevent the chest from being lifted, the control unit (140) closes the valve (133L) to stop the inflation of the lift airbag (120).

[0098] In this way, the inflation of the lift airbag (120) is stopped, and the patient's neck is kept in a state of being tilted backwards while the patient's chest, i.e., shoulders, are not raised, so that the patient's head is positioned higher than the heart and the patient's head is tilted to open the airway and blood vessels.

[0099] In this state, medical staff or paramedics perform cardiopulmonary resuscitation on the patient lying on the backboard (200).

[0100] In the control method of the head-up system for CPR described above, the control unit is described as operating the air pump by dividing it into primary and secondary operations, but this is only to specifically explain the function and purpose of the tilting airbag and the lift airbag. The air pump can be used to inject compressed air into the tilting airbag and the lift airbag simultaneously or with a time difference, or alternatively, the amount of air injected per hour can be different to inflate the tilting airbag and the lift airbag respectively.

[0101]

[0102] The head-up device for cardiopulmonary resuscitation using an airbag of the present invention, the head-up system for cardiopulmonary resuscitation equipped with a backboard, and the control method of the head-up device have industrial applicability in that they can improve the neurological prognosis of a patient by opening the airway and blood vessels by tilting the patient's head backward while positioning the patient's head higher than the heart so as to increase cerebral perfusion pressure and cerebral blood flow during cardiopulmonary resuscitation.

[0103] In addition, the present invention is configured to increase the survival rate through cardiopulmonary resuscitation by enabling the patient to assume a stable head-up position, measuring the patient's cerebral blood flow in real time to perform precise emergency treatment, and preventing the pressure applied to the chest from being absorbed and reduced so that the pressure can be smoothly transmitted to the heart when performing cardiopulmonary resuscitation while tilting the patient's head backward to open the airway and blood vessels, and also reducing the volume and weight to increase mobility and storage, so that it has sufficient potential for industrial use.

Claims

1. A head-up device for cardiopulmonary resuscitation, characterized by including one or more air bags that support the head of a patient lying flat and lift the patient's head by inflating with air.

2. In paragraph 1, A head-up device for cardiopulmonary resuscitation, characterized in that it includes a tilting airbag that supports a patient's head, and a lift airbag that is located below the tilting airbag and pushes the tilting airbag upward when inflated.

3. In paragraph 2, A head-up device for cardiopulmonary resuscitation characterized by having a groove formed on the upper surface of the tilting airbag in which a patient's head can be placed.

4. In paragraph 2 or 3, A head-up device for cardiopulmonary resuscitation, characterized in that one side of the bottom surface of the tilting airbag and one side of the top surface of the lifting airbag are connected, and the other side of the bottom surface of the tilting airbag and the other side of the lifting airbag have mutually facing inclined surfaces formed respectively.

5. In paragraph 4, A head-up device for cardiopulmonary resuscitation, characterized in that the bottom of the tilting airbag is relatively high on one side and low on the other side, and a slope is formed in the middle portion between the one side and the other side.

6. In paragraph 5, A head-up device for cardiopulmonary resuscitation, characterized in that one side of the upper surface of the lift airbag is connected to the tilting airbag, and a slope is formed from the connecting portion to the other side.

7. In paragraph 6, A head-up device for cardiopulmonary resuscitation, characterized in that the tilting airbag is tilted by the weight of the patient's head while the lift airbag is inflated, and the inclined surface of the tilting airbag and the inclined surface of the lift airbag come into contact with each other.

8. In paragraph 2, A head-up device for cardiopulmonary resuscitation, characterized in that it includes an air pump that compresses air and injects it selectively or simultaneously into a tilting air bag and a lift air bag, a plurality of air lines that respectively connect the air pump and the tilting air bag and the air pump and the lift air bag, a valve that controls the injection and blocking of compressed air through each air line, a control unit that controls the operation of the head-up device for cardiopulmonary resuscitation, and a power supply unit that supplies power necessary for the operation of the head-up device for cardiopulmonary resuscitation.

9. In paragraph 8, A head-up device for cardiopulmonary resuscitation, comprising a base plate, and characterized in that a tilting air bag, a lift air bag, an air pump, an airline, a control unit, and a power supply unit are mounted on the base plate.

10. In paragraph 3, A head-up device for cardiopulmonary resuscitation, characterized in that a chin protrusion is formed on the edge of the groove of the tilting airbag to contact the patient's chin, and the chin protrusion contacts the chin when the patient's head is placed inside the groove.

11. A head-up device having a groove formed to accommodate the head of a patient lying down and an airbag that can be inflated and deflated to tilt the patient's neck backward while lifting the head upward, A head-up system for cardiopulmonary resuscitation, comprising a backboard equipped with a head-up device that supports the patient so that the patient can lie down.

12. In paragraph 11, A head-up system for cardiopulmonary resuscitation characterized by a head-up device mounted on one side of the upper surface of the backboard.

13. In paragraph 12, A head-up system for cardiopulmonary resuscitation, characterized in that a groove is formed on one side of the upper surface of the backboard in which a head-up device is positioned, and the head-up device is mounted on the bottom of the groove.

14. In any one of paragraphs 10 to 13, A head-up system for cardiopulmonary resuscitation, characterized in that a plurality of empty spaces are formed inside the backboard and a plurality of ribs connect the inner upper surface and the lower surface of the backboard.

15. In paragraph 14, A head-up system for cardiopulmonary resuscitation, characterized in that among a plurality of empty spaces, some of the empty spaces are open upward, and a cover covers the open upper portion of the empty spaces to form a storage compartment.

16. In paragraph 15, A head-up system for cardiopulmonary resuscitation characterized by securing the cover by attaching a piece penetrating the cover to a backboard.

17. In paragraph 15, A head-up system for cardiopulmonary resuscitation, wherein the cover is hingedly connected to the outer wall of the empty space forming the storage compartment, and one of a projection and a groove that can be mutually fastened or unfastened is formed on an end of the cover corresponding to the inner wall of the empty space forming the storage compartment while the cover covers the storage compartment, and the other is formed on the inner wall.

18. In paragraph 15, A head-up system for cardiopulmonary resuscitation, characterized in that the storage section is formed on one or both sides of the home.

19. In paragraph 15, A head-up system for cardiopulmonary resuscitation characterized in that the backboard supports the patient's chest when the patient's head is placed on the head-up device.

20. In paragraph 15, A head-up system for cardiopulmonary resuscitation characterized by a backboard that supports the patient's buttocks when the patient's head is placed on the head-up device.

21. In paragraph 15, A head-up system for cardiopulmonary resuscitation, comprising: a tilting airbag that supports a patient's head; and a lift airbag that is positioned below the tilting airbag and pushes the tilting airbag upward when inflated; wherein, while the lift airbag is inflated, the tilting airbag is tilted by the weight of the patient's head, and the inclined surface formed in the tilting airbag and the inclined surface formed in the lift airbag come into contact with each other.

22. A control method for a head-up device for cardiopulmonary resuscitation that tilts the patient's neck backward while lifting the head of a patient lying flat on his or her back, The step of injecting air into the airbag that supports the patient's head, A control method for a head-up device for cardiopulmonary resuscitation, characterized in that it includes a step of blocking air injection when the air pressure of the air bag exceeds a set pressure while the patient's head is lifted upward by the inflating air bag.

23. In paragraph 22, The step of injecting air is, The step of inflating air into the tilting airbag that supports the patient's head, A control method for a head-up device for cardiopulmonary resuscitation, characterized in that it comprises a step of injecting air into a lifting airbag located below a tilting airbag to push the tilting airbag upward.

24. In paragraph 23, A control method for a head-up device for cardiopulmonary resuscitation, characterized in that the tilting airbag is tilted by the weight of the patient's head while the lift airbag is inflated.

25. In paragraph 23, A control method for a head-up device for cardiopulmonary resuscitation, characterized in that when the tilting airbag is tilted, the lift airbag expands further by the injected air, and when the air pressure of the lift airbag exceeds the set pressure, the air injection is blocked.

26. In paragraph 25, A control method for a head-up device for cardiopulmonary resuscitation, characterized in that the patient's shoulder is lifted when the air pressure of the lift airbag exceeds the set pressure.

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