First-aid device for breathing severe illness

Abstract

The invention discloses a breathing severe illness first-aid device, and relates to the technical field of medical instruments. Comprising a bed body, and a first supporting frame and a second supporting frame which are adjustable in height are installed on the bed body; a lever is hinged to the upper end of the first supporting frame; a first limiting groove for limiting the lever to move in the vertical direction is formed in the second supporting frame; the middle part of the lever is movably connected with a pressing mechanism; the far end of the lever is connected with a driving mechanism; the bed body is further connected with a breathing mechanism, and the far end of the lever acts on the breathing mechanism when moving up and down to conduct artificial respiration on a patient. The pressing mechanism is installed on the lever, physical strength is saved through the lever principle, the driving mechanism is connected to the lever, automatic external chest compression is achieved, and the pressing frequency and the pressing depth are guaranteed; the distraction assembly is arranged in the pressing mechanism, so that the pressing depth is adjustable, the size of the pressing block is adjustable, and the device is suitable for different patients.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a respiratory emergency device. Background Art

[0002] In the field of respiratory critical care emergency, cardiopulmonary resuscitation and other operations are key links in saving patients' lives. However, for some patients with a large body weight base, traditional cardiopulmonary resuscitation operations have many difficulties in actual operation. On the one hand, chest compressions often require rescuers to exert a lot of force to achieve an effective compression depth, which is a huge challenge to the rescuers' physical strength, and it is difficult to ensure the stability of the compression quality during long-term operations; on the other hand, during the emergency treatment process, it may be necessary to quickly adjust parameters such as compression depth according to the physical condition of different patients, and at the same time, artificial respiration operations need to be taken into account. Some existing first aid methods and simple tools are difficult to meet these complex and critical needs. Therefore, it is particularly important to develop an efficient, convenient and safe respiratory critical care emergency equipment.

[0003] To address the above issues, patent number CN115192322B discloses a cardiopulmonary resuscitation stand for a transport bed with protective measures. The stand is mounted on the transport bed. A drive motor drives a planetary gear set, which in turn drives a connecting rod, which in turn drives a linkage mechanism. This causes the pressing blocks to regularly simulate manual chest compressions, performing cardiopulmonary resuscitation on the patient, replacing manual operation. However, this patent still presents the following two issues: 1. Failure to perform artificial respiration on the patient simultaneously. Cardiopulmonary resuscitation generally consists of two parts: chest compressions and artificial respiration. Performing both parts simultaneously is significantly more effective than performing artificial respiration alone, or performing the two operations alternately.

[0004] 2. The size of the compression block cannot be adjusted. Different patients require compression blocks of different sizes. For example, relatively thin patients and patients with a large base weight require relatively large compression blocks to ensure the effectiveness of cardiopulmonary resuscitation. Summary of the Invention

[0005] The present invention provides a respiratory critical care first aid device, which aims to solve the problems of the existing respiratory critical care first aid device in that artificial respiration cannot be performed synchronously and the size of the pressing block cannot be adjusted.

[0006] To achieve the above-mentioned purpose, the technical ideas adopted by the present invention to solve the technical problems are as follows: A respiratory emergency device is designed, in which a pressing mechanism is installed in the middle of a lever to save physical effort through the lever principle, and a first limit groove is provided at the far end of the lever to limit the movement direction and pressing depth of the lever; a driving mechanism is connected to the lever to realize automatic chest compression to ensure the compression frequency and compression depth; an air bag is installed under the lever so that the air bag is squeezed when the lever moves downward to perform artificial respiration for the patient; and an expansion component is provided in the pressing mechanism to make the size of the pressing block adjustable to suit different patients.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention to solve the technical problem is: A respiratory critical care emergency device comprises a bed, on which a first support frame and a second support frame with adjustable heights are mounted; The upper end of the first support frame is hinged with a lever; The second support frame is provided with a first limiting groove for limiting the movement of the lever in the vertical direction; The middle part of the lever is movably connected with a pressing mechanism; The distal end of the lever is connected with a driving mechanism.

[0008] Furthermore, the driving mechanism includes a motor, a rotating rod and a second connecting rod; The motor is mounted on the second support frame; One end of the rotating rod is connected to the output shaft of the motor, and the other end is hinged to the second connecting rod; The second connecting rod is movably sleeved on the lever.

[0009] Furthermore, the pressing mechanism includes a threaded rod, a spreading assembly, and an elastic pressing head; The threaded rod threads through the lever; The lower end of the expansion assembly is installed in the pressing head, and the upper end passes through the pressing head and is connected to the threaded rod; The pressing head is connected to the lever through a telescopic rod.

[0010] Furthermore, the expansion assembly includes a T-shaped turntable, a limiting plate and a plurality of expansion blocks; The T-shaped turntable is mounted on the lower end of the threaded rod; The limiting plate is installed in the pressing head; The spreading block is movably connected to the T-shaped turntable and the limiting disk.

[0011] Furthermore, the expansion block includes an expansion block body and a limiting rod; The support block body and the limiting rod are connected via a first connecting rod; The first connecting rod is slidably sleeved in the limiting plate; After the limiting rod passes through the limiting disk, it is slidably sleeved in the T-shaped turntable.

[0012] Furthermore, the T-shaped turntable is provided with a plurality of arc-shaped slots in an array; The limiting plate is provided with a plurality of second limiting grooves in an array; The first connecting rod is slidably sleeved in the corresponding second limiting groove; After the limiting rod passes through the corresponding second limiting groove, it is slidably sleeved in the corresponding arc groove.

[0013] Furthermore, the bed is also connected to a breathing mechanism, and the distal end of the lever acts on the breathing mechanism when it moves up and down, thereby performing artificial respiration on the patient.

[0014] Furthermore, the breathing mechanism includes an air bag, a ventilator and a breathing mask; The breathing mask is connected to the airbag via a ventilation tube; The airbag is installed in the first limiting groove and is located below the lever.

[0015] Furthermore, the bed body is provided with a receiving groove for receiving the first support frame, the second support frame, the lever, the pressing mechanism and the driving mechanism.

[0016] The beneficial effects of the present invention are as follows: compared with the prior art, the improvement of the present invention is that: 1. The present invention connects the pressing mechanism to the middle part of the lever through the lever principle. By applying force at the far end of the lever, manual chest compression can save physical effort, allowing medical staff to smoothly perform long-term chest compressions and helping to achieve an effective compression depth.

[0017] 2. By connecting a driving mechanism to a lever, the present invention can complete chest compressions at a fixed frequency, and the compression depth can be effectively guaranteed. On the basis of ensuring the first aid effect, it can also effectively avoid complications such as rib fractures and pneumothorax caused by excessive compression depth, which is beneficial to the patient's subsequent recovery.

[0018] 3. The present invention provides a pressing mechanism, which connects the expansion component to the threaded rod, so that when the threaded rod is rotated downward or upward, the pressing head can be correspondingly expanded or contracted, making the present invention suitable for different patients. For patients with a large body weight, a larger pressing head can be used to perform deeper pressing; for underage patients, a smaller pressing head can be used to perform less deep pressing.

[0019] 4. The present invention sets a breathing mechanism and installs the airbag under the lever. When the lever is pressed down, the airbag can be squeezed to perform artificial respiration for the patient simultaneously. When the lever is lifted, the airbag is automatically inflated to prepare for the next artificial respiration. It is particularly suitable for transporting patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural diagram of the bed 1; Figure 3 It is a structural diagram of the connection between the cardiopulmonary resuscitation component and the bed board; Figure 4 It is a schematic diagram of the structure of the cardiopulmonary resuscitation component; Figure 5 It is a schematic diagram of the overall structure of the driving mechanism; Figure 6 It is an exploded diagram of the drive mechanism; Figure 7 yes Figure 4 A partial enlarged view of part A; Figure 8 It is an exploded diagram of the extrusion mechanism; Figure 9 It is an exploded view of the expanded component; Figure 10 It is a three-dimensional top view of the expanded component when it is retracted to its minimum state; Figure 11 It is a plan view of the expanded component when it is retracted to its minimum state; Figure 12 It is a three-dimensional top view of the expansion component when it is expanded to the maximum state; Figure 13 It is a plan view of the expansion component when it is expanded to the maximum state; In the picture: 1. Bed body; 11. Bed board; 111. Storage slot; 12. Bed legs; 13. Guardrail; 2. The first support frame; 3. Second support frame; 31. First limiting groove; 4. Lever; 41. First lever; 42. Second lever; 5. Pressing mechanism; 51. Threaded rod; 52. Spreading assembly; 521. T-shaped turntable; 5211. Arc-shaped slot; 522. Limiting plate; 5221. Second limiting slot; 523. Spreading block; 5231. Spreading block body; 5232. First connecting rod; 5233. Limiting rod; 53. Pressing head; 54. Telescopic rod; 6. Driving mechanism; 61. Motor; 62. Rotating rod; 63. Second connecting rod; 631. Ring; 7. Breathing mechanism; 71. Air bag; 72. Ventilation tube; 73. Breathing mask. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments, rather than all the embodiments.

[0023] Example 1 refer to Figure 1-6 The present invention provides a respiratory critical care emergency device, including a bed body 1, which includes a bed board 11 and bed legs 12; the lower ends of the bed legs 12 are provided with liftable universal wheels, which can be extended from the lower ends of the bed legs 12 when needed to facilitate the transfer of patients, and when the patients are not being transferred, the universal wheels can be retracted into the bed legs 12 to improve the stability of the bed body 1; guardrails 13 are provided on both sides of the bed board 11, and the guardrails 13 are preferably a liftable structure to protect the patients, and when necessary, the guardrails 13 can be lowered to facilitate medical staff to perform various rescue and nursing operations; the liftable universal wheels and the liftable guardrails 13 are conventional settings in this field and will not be described in detail here.

[0024] A lever 4 is movably mounted above the bed board 11, and a pressing mechanism 5 is connected to the middle of the lever 4. Specifically, a first support frame 2 is provided on the side of the bed board 11, and one end of the lever 4 is hinged to the upper end of the first support frame 2. By manually and repeatedly pressing and lifting the lever 4 at the far end of the lever 4, the pressing mechanism 5 can perform chest compressions on the patient lying on the bed board 11. According to the lever principle, since the force arm of the hand exerting force on the lever 4 is greater than the force arm of the reaction force of the pressing mechanism 5 on the lever, the physical strength of the medical staff can be effectively saved. Chest compressions require a lot of physical strength from the medical staff. When performing long-term emergency treatment on patients with a large base weight, saving physical strength is particularly important, which is conducive to maintaining the effective compression depth for a long time. In this embodiment, the pressing mechanism 5 adopts an existing structure, such as a pressing block.

[0025] Furthermore, a second support frame 3 is provided on the side of the bed board 11 opposite to the first support frame 2, and a driving mechanism 6 is installed on the second support frame 3. The driving mechanism 6 is connected to the distal end of the lever 4, driving the distal end of the lever 4 to move up and down, causing the lever 4 to rotate in the vertical direction, thereby driving the pressing mechanism 5 to move up and down to perform chest compressions on the patient.

[0026] Furthermore, the drive mechanism 6 comprises a motor 61, a rotating rod 62, and a second connecting rod 63. The motor 61 is mounted within the second support frame 3. One end of the rotating rod 62 is connected to the output shaft of the motor 61, and the other end is hingedly connected to the second connecting rod 63. The end of the second connecting rod 63, distal from the rotating rod 62, is movably mounted on the lever 4. The second support frame 3 defines a first limiting groove 31 that restricts vertical movement of the lever 4. The first limiting groove 31 mates with the lever 4 and the radius of motion of the rotating rod 62. The motor 61 drives the rotating rod 62 to rotate, thereby driving the second connecting rod 63, which in turn drives the lever 4. Within the constraints of the first limiting groove 31, the lever 4 reciprocates vertically. The motor 61 is preferably portable for ease of use during patient transport. Specifically, the second connecting rod 63 is provided with a collar 631 for connection to the lever 4. A switch is provided on the collar 631 to facilitate detachable connection between the second connecting rod 63 and the lever 4.

[0027] Furthermore, in order to avoid the lever 4 being fixed in height in its natural state and to make the device suitable for patients of different body shapes, the first support frame 2 and the second support frame 3 are preferably designed to be adjustable in height, and the heights are adjusted simultaneously through the same device so that the lever 4 is in a horizontal state in its natural state. For example, the first support frame 2 and the second support frame 3 are preferably telescopic rods in the prior art, and the same motor is used to control the telescopic movement simultaneously.

[0028] Furthermore, a storage groove 111 is provided on the bed board 11 for accommodating the first support frame 2, the second support frame 3, the lever 4, the pressing mechanism 5 and the driving mechanism 6; the lever 4 is preferably a retractable structure in the prior art, including a first lever 41 and a second lever 42. The second lever 42 is provided in a movable sleeve inside the distal end of the first lever 41. When cardiopulmonary resuscitation is not required for the patient, the second lever 42 can be retracted into the first lever 41. The end of the first lever 41 away from the second lever 42 is hinged to the upper end of the first support frame 2, and the end close to the second lever 42 is provided with a second connecting rod 63 in a movable sleeve outside. The second lever 42 further increases the total length of the lever 4. In special circumstances, such as when the battery in the motor 61 is exhausted or the battery fails, it may be necessary to manually press the lever 4 to perform chest compressions on the patient, while still achieving the purpose of saving physical effort and ensuring the depth of chest compressions. Accordingly, the motor 61 is preferably turned off to allow the output shaft to rotate under the action of an external force. The second connecting rod 63 is preferably detachably mounted outside the first lever 41 to ensure that the motor 61 does not restrict the rotation of the lever 4 under special circumstances. When necessary, the second connecting rod 63 can be quickly removed from the lever 4 to prevent the rotation of the lever 4 from being affected by a failure of the motor 61. When the present invention is used as a hospital bed, the components for performing cardiopulmonary resuscitation are stored in the storage groove 111, and the collar 631 is in an open state, that is, the lever 4 is not connected to the second connecting rod 63. This allows the lever 4 to be lifted when the cardiopulmonary resuscitation components are removed to avoid injuring the patient's head.

[0029] The working principle of the respiratory emergency device in this embodiment is as follows: the motor 61 drives the rotating rod 62 to rotate, and the rotation of the rotating rod 62 drives the second connecting rod 63 to move, thereby driving the lever 4 to move. Since one end of the lever 4 is hinged to the first support frame 2 and the other end is restricted by the first limiting groove 31, the lever 4 rotates vertically around the upper end of the first support frame 2. The driving mechanism 6 not only saves medical staff's physical energy so that they can focus on other rescue matters, but also, compared with the method of human chest compression, the frequency and depth of compression can be guaranteed, and complications such as rib fractures and pneumothorax caused by excessive compression depth can be effectively avoided.

[0030] Example 2 On the basis of the first embodiment, in order to adopt different compression contact areas for different patients and perform chest compressions of different depths, the second embodiment provides a preferred solution of the compression mechanism 5 .

[0031] refer to Figure 8-13The pressing mechanism 5 includes a threaded rod 51, a spreading component 52, and an elastic pressing head 53; the threaded rod 51 passes through the first lever 41 and is threadedly connected to the first lever 41; the lower end of the spreading component 52 is installed in the pressing head 53, and the upper end passes through the upper end of the pressing head 53 and is connected to the lower end of the threaded rod 51; the pressing head 53 is connected to the first lever 41 through a telescopic rod 54, and the pressing head 53 is a hollow structure.

[0032] Furthermore, the expansion assembly 52 includes a T-shaped turntable 521, a limit plate 522 and a plurality of expansion blocks 523; the T-shaped turntable 521 is installed at the lower end of the threaded rod 51; the limit plate 522 is installed in the pressing head 53; the expansion block 523 is movably connected to the T-shaped turntable 521 and the limit plate 522, and as the T-shaped turntable 521 rotates, the plurality of expansion blocks 523 move away from each other and expand outward or approach each other and retract inward, thereby expanding or shrinking the pressing head 53; specifically, when the threaded rod 51 rotates downward, the plurality of expansion blocks 523 move away from each other and expand outward, thereby enlarging the pressing head 53; when the threaded rod 51 rotates upward, the plurality of expansion blocks 523 move closer to each other and retract inward, thereby shrinking the pressing head 53.

[0033] When the threaded rod 51 is not adjusted, the pressing depth of the pressing head of the present invention remains unchanged for different patients, that is, the pressing depth is determined by setting the rotation radius of the rotating rod 62; preferably, the pressing mechanism 5 is located at the middle position of the line connecting the first support frame 2 and the second support frame 3, and the rotation radius of the rotating rod 62 is 5 cm. At this time, according to the lever principle, the pressing range of the pressing head 53 is also 5 cm. The height of the first support frame 2 and the second support frame 3 is adjusted so that the bottom of the pressing head 53 just touches the skin of the pressing area, but does not squeeze the patient, that is, the pressing head 53 performs chest compressions on the patient within a range of 0-5 cm, which is suitable for use by adult patients of average size. When the patient has a large body weight, the threaded rod 51 is rotated downward to make the pressing head 53 larger and form a certain squeezing effect on the patient. For example, if it is rotated downward by 0.5 cm, the patient will undergo chest compressions within a range of 0.5-5.5 cm. Similarly, for minor patients, the threaded rod 51 can be rotated upward to reduce the compression head 53 while performing less deep chest compressions on the patient. Preferably, the threaded rod 51 is engraved with a scale to facilitate medical staff to quickly determine whether the adjustment is in place, which is not shown in the figure.

[0034] Specifically, a plurality of arc grooves 5211 are arranged in an array on the T-shaped turntable 521, and the arc grooves 5211 are arranged along an arc from the center of the T-shaped turntable 521 to the edge; a plurality of second limiting grooves 5221 are arranged in an array on the limiting plate 522; the expansion block 523 includes an expansion block body 5231, a first connecting rod 5232 and a limiting rod 5233; the expansion block body 5231 and the limiting rod 5233 are connected by the first connecting rod 5232; the first connecting rod 5232 is slidably sleeved in the corresponding second limiting groove 5221; after the limiting rod 5233 passes through the corresponding second limiting groove 5221, it is slidably sleeved in the corresponding arc groove 5211; the arc groove 5211, the second limiting groove 5221, the first connecting rod 5232 and the limiting rod 5233 match each other. When the threaded rod 51 is rotated to drive the pressing head 53 to move downward, the T-shaped turntable 521 is also driven to rotate, and the arc groove 5211 rotates along with the T-shaped turntable 521. Under the limiting action of the arc groove 5211, the multiple limiting rods 5233 move away from or closer to each other, thereby causing the pressing head 53 to expand or shrink.

[0035] Example 3 On the basis of the first embodiment, in order to perform artificial respiration on the patient while performing chest compressions and achieve better rescue effects, the third embodiment provides a preferred solution of the present invention.

[0036] refer to Figure 3 、 4 , 6. A breathing mechanism 7 is also connected to the bed 1, and the breathing mechanism 7 includes an airbag 71, a ventilation tube 72 and a breathing mask 73; the airbag 71 is installed in the first limiting groove 31 of the second support frame 3 and is located below the lever 4; the breathing mask 73 is connected to the airbag 71 through the ventilation tube 72, and the airbag 71 is provided with a one-way valve that only allows gas to flow in, and the ventilation tube 72 is provided with a one-way valve that only allows gas to flow to the breathing mask 73. The one-way valve is preferably a one-way sealing valve on a ventilator in the prior art, which is not shown in the figure. The airbag 71 is preferably made of a material that can automatically rebound after deformation, such as a rubber material with a certain thickness. The breathing mask 73 is preferably an existing breathing mask with good airtightness and convenient for patients to wear. When the lever 4 is rotated downward, the airbag 71 is squeezed, the air pressure in the airbag 71 increases, and artificial respiration is performed on the patient through the ventilation tube 72 and the breathing mask 73; when the lever 4 is rotated upward, the airbag 71 recovers its elastic deformation, and with the cooperation of the two one-way valves, air automatically flows into the airbag 71 from the outside, and when the lever 4 is rotated to the highest point, the airbag 71 is restored to a state of being filled with air.

[0037] Application examples: Patients with severe respiratory problems are prone to cardiac arrest and lack of spontaneous breathing. CPR should be performed immediately and they should be transported to a designated clinic for further treatment. CPR generally involves chest compressions and artificial respiration. This device is suitable for use as an inpatient bed for patients with severe respiratory problems and can also be used as a transfer bed for transporting patients between departments.

[0038] Taking the cardiopulmonary resuscitation of a hospitalized patient with severe respiratory illness of a large body weight using the present invention as an example, the operation method of the emergency device for severe respiratory illness of the present invention is specifically described.

[0039] Step 1: When a patient is suspected of having cardiac arrest, call medical personnel immediately. The medical personnel quickly determine the patient's autonomous consciousness, pulse and breathing. After confirming that cardiac arrest has occurred, the emergency plan is immediately activated and cardiopulmonary resuscitation is performed on the patient using the present invention.

[0040] Step 2: Raise the first support frame 2 and the second support frame 3, and at the same time lift the lever 4 to avoid hitting the patient's head, then lower the lever 4, close the ring 631, and put the second connecting rod 63 on the lever 4, then hold the lever 4 with one hand to keep it at the highest point, and at the same time adjust the height of the first support frame 2 and the second support frame 3 with the other hand so that the bottom of the pressing head 53 just touches the skin in the middle of the line connecting the two nipples of the patient without squeezing the patient.

[0041] Step 4: Rotate the threaded rod 51 downward to drive the T-shaped turntable 521 to rotate. The arc groove 5211 rotates with the T-shaped turntable 521. Under the limiting action of the arc groove 5211, the multiple limiting rods 5233 move away from each other, thereby expanding the pressing head 53.

[0042] Step 5: Start the motor 61 and perform chest compressions on the patient. At the same time, check whether there is any foreign matter in the patient's mouth. If there is any foreign matter, clean it immediately and put on the breathing mask 73 for the patient. When the lever 4 rotates downward, the airbag 71 is squeezed, the air pressure in the airbag 71 increases, and artificial respiration is performed on the patient through the ventilation tube 72 and the breathing mask 73; when the lever 4 rotates upward, the airbag 71 recovers its elastic deformation, and with the cooperation of the two one-way valves, air automatically flows into the airbag 71 from the outside. When the lever 4 rotates to the highest position, the airbag 71 is restored to a state of being filled with air.

[0043] Step 6: If necessary, raise the guardrail 13, extend the universal wheels at the bottom of the bed legs 12, and transfer the patient to the relevant clinic for the next step of rescue.

[0044] It should be understood that the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

Claims

1. A respiratory emergency device, comprising a bed (1), characterized in that: The bed body (1) is provided with a first support frame (2) and a second support frame (3) with adjustable heights; A lever (4) is hingedly connected to the upper end of the first support frame (2); The second support frame (3) is provided with a first limiting groove (31) for limiting the movement of the lever (4) in the vertical direction; The middle part of the lever (4) is movably connected to a pressing mechanism (5); The distal end of the lever (4) is connected to a driving mechanism (6).

2. A respiratory emergency device according to claim 1, characterized in that: The driving mechanism (6) comprises a motor (61), a rotating rod (62) and a second connecting rod (63); The motor (61) is mounted on the second support frame (3); One end of the rotating rod (62) is connected to the output shaft of the motor (61), and the other end is hinged to the second connecting rod (63); The second connecting rod (63) is movably sleeved on the lever (4).

3. A respiratory emergency device according to claim 1, characterized in that: The pressing mechanism (5) comprises a threaded rod (51), a spreading assembly (52), and an elastic pressing head (53); The threaded rod (51) is threadedly passed through the lever (4); The lower end of the spreading component (52) is installed in the pressing head (53), and the upper end passes through the pressing head (53) and is connected to the threaded rod (51); The pressing head (53) is connected to the lever (4) via a telescopic rod (54).

4. A respiratory emergency device according to claim 3, characterized in that: The spreading assembly (52) comprises a T-shaped rotating disk (521), a limiting disk (522) and a plurality of spreading blocks (523); The T-shaped turntable (521) is mounted on the lower end of the threaded rod (51); The limiting plate (522) is installed in the pressing head (53); The spreading block (523) is movably connected to the T-shaped rotating disk (521) and the limiting disk (522).

5. A respiratory emergency device according to claim 4, characterized in that: The expansion block (523) comprises an expansion block body (5231) and a limiting rod (5233); The expansion block body (5231) and the limiting rod (5233) are connected via a first connecting rod (5232); The first connecting rod (5232) is slidably sleeved in the limiting plate (522); After the limiting rod (5233) passes through the limiting plate (522), it is slidably sleeved in the T-shaped rotating plate (521).

6. A respiratory emergency device according to claim 5, characterized in that: The T-shaped turntable (521) is provided with a plurality of arc-shaped grooves (5211) in an array; The limiting plate (522) is provided with a plurality of second limiting grooves (5221) in an array; The first connecting rod (5232) is slidably sleeved in the corresponding second limiting groove (5221); After the limiting rod (5233) passes through the corresponding second limiting groove (5221), it is slidably sleeved in the corresponding arc groove (5211).

7. A respiratory emergency device according to claim 1, characterized in that: The bed body (1) is also connected to a breathing mechanism (7), and when the distal end of the lever (4) moves up and down, it acts on the breathing mechanism (7) to perform artificial respiration on the patient.

8. A respiratory emergency device according to claim 7, characterized in that: The breathing mechanism (7) comprises an air bag (71), a ventilation tube (72) and a breathing mask (73); The breathing mask (73) is connected to the air bag (71) via a ventilation tube (72); The air bag (71) is installed in the first limiting groove (31) and is located below the lever (4).

9. A respiratory emergency device according to claim 1, characterized in that: The bed body (1) is provided with a storage groove (111) for storing the first support frame (2), the second support frame (3), the lever (4), the pressing mechanism (5) and the driving mechanism (6).

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