Automatic first-aid device for airway foreign body obstruction

Abstract

The present invention discloses an automatic first-aid device for airway foreign body obstruction, which includes a backrest plate, a moving component, a pressing pad, a detection head, and an induction sheet attached to the position to be pressed of the patient. The moving component is installed on the backrest plate, and both the pressing pad and the detection head are installed at the output end of the moving component. Both the pressing pad and the detection head move under the drive of the moving component. The detection head is electrically connected to the moving component, and the detection head is used to detect the position information of the induction sheet. The moving component drives the pressing pad to press against the position to be pressed of the patient according to the information fed back by the detection head. The automatic first-aid device for airway foreign body obstruction of the present invention is placed in public places or at home, and can quickly implement correct and effective rescue measures, reducing the disability rate and fatality rate of airway foreign body obstruction.

Description

Technical Field

[0001] The present invention relates to the field of first aid equipment and facilities, and particularly to an automatic first aid device for airway foreign body obstruction. Background Art

[0002] The accidental asphyxia rate caused by foreign bodies such as food entering the trachea is as high as 90%. Brain cell necrosis that cannot be reversed can occur if hypoxia exceeds 3 minutes, and death can occur if it exceeds 5 minutes. The "Heimlich maneuver" is an effective way to relieve airway foreign body obstruction. The success rate can reach 86.5% when the "Heimlich maneuver" is used in a timely and correct manner.

[0003] Technical principle of the "Heimlich maneuver":

[0004] By impacting the abdomen, the upper abdomen sinks, the diaphragm is compressed and rises, compressing the lower parts of the two lungs, causing the thoracic cavity pressure to suddenly increase, driving the residual air in the lungs to form an air current. Since the thoracic cavity is airtight and there is only one opening in the trachea, the gas in the thoracic cavity (trachea and lungs) rushes towards the trachea under the action of pressure. Each impact can generate 450 - 500 milliliters of gas, thus having a certain probability of flushing out the foreign body and restoring the patency of the airway.

[0005] Method of the "Heimlich maneuver":

[0006] When the patient is a conscious child or adult, the rescuer steps one leg forward, inserts it between the patient's legs in a lunge, straightens the other leg behind, hugs the patient's waist with both arms to make the upper body lean forward, makes a fist with one hand, places the knuckle of the fist above two transverse fingers above the patient's navel, and wraps the other hand around the fist to continuously, quickly, and forcefully impact the patient's back and upper direction until the foreign body is spit out.

[0007] Existing problems:

[0008] 1. Currently, the popularization rate of first aid skills in China is still less than 1%. The vast majority of the public do not master the rescue methods for airway foreign body obstruction. When airway foreign body obstruction occurs in public places, witnesses are often at a loss and fail to take timely and effective measures, thus missing the best rescue time, and cases of death due to delayed treatment are not uncommon.

[0009] 2. The self - rescue success rate is low. When a patient alone has an airway foreign body obstruction and does not master the self - rescue method, death is often inevitable; even if the patient masters the self - rescue method of abdominal impact, the force generated by self - abdominal impact is far less than that of others' rescue, and the self - rescue success rate is significantly lower than that of others' rescue.

[0010] In summary, an automatic first aid device for airway foreign body obstruction is needed to overcome the above - mentioned defects. Summary of the Invention

[0011] The object of the present invention is to provide an automatic first-aid device for airway foreign body obstruction placed in public places or homes, which can quickly implement correct and effective rescue measures and reduce the disability rate and fatality rate of airway foreign body obstruction.

[0012] To achieve the above object, the present invention discloses an automatic first-aid device for airway foreign body obstruction, which includes a backrest plate, a moving component, a pressing pad, a detection head, and an induction sheet attached to the position to be pressed of the patient. The moving component is installed on the backrest plate, and both the pressing pad and the detection head are installed at the output end of the moving component. Both the pressing pad and the detection head move under the drive of the moving component. The detection head is electrically connected to the moving component, and the detection head is used to detect the position information of the induction sheet. Based on the information fed back by the detection head, the moving component drives the pressing pad to press against the position to be pressed of the patient.

[0013] Preferably, the moving component includes a lifting mechanism, a front-back telescopic straight rod mechanism, a fast reciprocating straight rod mechanism, and a left-right telescopic straight rod mechanism. The lifting mechanism is installed on the backrest plate, the front-back telescopic straight rod mechanism is installed at the output end of the lifting mechanism, and the front-back telescopic straight rod mechanism rises and falls under the drive of the lifting mechanism. The fast reciprocating straight rod mechanism is installed at the output end of the front-back telescopic straight rod mechanism, and the fast reciprocating straight rod mechanism moves in the front-back direction of the backrest plate under the drive of the front-back telescopic straight rod mechanism. The left-right telescopic straight rod mechanism is installed at the output end of the fast reciprocating straight rod mechanism, and the left-right telescopic straight rod mechanism makes a reciprocating movement in the front-back direction of the backrest plate under the drive of the fast reciprocating straight rod mechanism. The detection head and the pressing pad are installed at the output end of the left-right telescopic straight rod mechanism, and the detection head and the pressing pad move in the left-right direction of the backrest plate under the drive of the left-right telescopic straight rod mechanism.

[0014] Specifically, the lifting mechanism includes a driving motor, a lead screw, and a nut sleeved on the lead screw. The driving motor is installed on the backrest plate, the lead screw is installed at the output end of the driving motor, and the nut is connected to the front-back telescopic straight rod mechanism. The front-back telescopic straight rod mechanism rises and falls by the lifting of the nut.

[0015] Specifically, the lifting mechanism further includes a guiding component, and the guiding component includes a guide rail and a slider. The guide rail is installed on the backrest plate, the slider is connected to the nut, and the slider slides on the guide rail.

[0016] Specifically, the front-back telescopic straight rod mechanism includes a telescopic hydraulic device and a fixed rod. The fixed rod is installed on the backrest plate, the telescopic hydraulic device is installed on the fixed rod, the quick reciprocating straight rod mechanism is installed at the output end of the telescopic hydraulic device, and the quick reciprocating straight rod mechanism moves along the front-back direction of the backrest plate under the drive of the telescopic hydraulic device.

[0017] Specifically, the quick reciprocating straight rod mechanism includes a rotary motor, a swing rod and a connecting rod. The rotary motor is installed at the output end of the front-back telescopic straight rod mechanism. One end of the swing rod is pivotally connected to the output end of the front-back telescopic straight rod mechanism, and the other end of the swing rod is pivotally connected to the connecting rod. The swing rod swings under the drive of the rotary motor and drives the connecting rod to move along the front-back direction of the backrest plate.

[0018] Specifically, the left-right telescopic straight rod mechanism includes a transverse hydraulic telescopic device and a movable rod. The transverse hydraulic telescopic device is installed at the output end of the quick reciprocating straight rod mechanism, the movable rod is installed at the output end of the transverse hydraulic telescopic device, and the movable rod moves along the left-right direction of the backrest plate under the drive of the transverse hydraulic telescopic device. The detection head and the pressing pad are installed on the movable rod, and the detection head and the pressing pad face the backrest plate.

[0019] Preferably, a storage grid for placing an automated external defibrillator is provided on the backrest plate.

[0020] Preferably, the induction sheet includes an induction sheet body, an annular adhesive layer and a magnetic sheet. The magnetic sheet is arranged on one side of the induction sheet body, and the annular adhesive layer is arranged on one side of the induction sheet body and surrounds the magnetic sheet.

[0021] Preferably, a human-shaped indication pattern is provided on the backrest plate.

[0022] Compared with the prior art, the automatic first-aid device for airway foreign body obstruction of the present invention combines a backrest plate, a moving component, a pressing pad, a detection head and an induction sheet attached to the position to be pressed of the patient, etc. The moving component is installed on the backrest plate, the pressing pad and the detection head are both installed at the output end of the moving component, and both the pressing pad and the detection head move under the drive of the moving component, so as to drive the detection head to move to the target position and drive the pressing pad to move to repeatedly press the position to be pressed. The detection head is electrically connected to the moving component, and the detection head is used to detect the position information of the induction sheet. The moving component drives the pressing pad to press against the position to be pressed of the patient according to the information fed back by the detection head. That is, when in use, the induction sheet is attached to the position to be pressed of the patient, the moving component drives the detection head to approach the position to be impacted of the patient, the detection head collects accurate position information and instructs the moving component to work, and the pressing pad repeatedly presses the position to be pressed under the drive of the moving component until the foreign body is spit out to achieve the purpose of first aid. Brief Description of the Drawings

[0023] Figure 1 It is a three - dimensional structural schematic diagram of the automatic first - aid device for airway foreign body obstruction of the present invention.

[0024] Figure 2 It is a structural schematic diagram of the backrest plate and the lifting mechanism in the automatic first - aid device for airway foreign body obstruction of the present invention.

[0025] Figure 3 It is a structural schematic diagram of the front - to - back telescopic straight - rod mechanism, the fast - reciprocating straight - rod mechanism, the left - to - right telescopic straight - rod mechanism, the pressure pad and the detection head in the automatic first - aid device for airway foreign body obstruction of the present invention.

[0026] Figure 4 It is an internal structural schematic diagram of the lifting mechanism, the front - to - back telescopic straight - rod mechanism and the fast - reciprocating straight - rod mechanism in the automatic first - aid device for airway foreign body obstruction of the present invention.

[0027] Figure 5 It is an internal structural schematic diagram of the lifting mechanism and the front - to - back telescopic straight - rod mechanism in the automatic first - aid device for airway foreign body obstruction of the present invention.

[0028] Figure 6 It is an internal structural schematic diagram of the fast - reciprocating straight - rod mechanism in the automatic first - aid device for airway foreign body obstruction of the present invention.

[0029] Figure 7 It is an internal structural schematic diagram of the left - to - right telescopic straight - rod mechanism in the front - view direction in the automatic first - aid device for airway foreign body obstruction of the present invention.

[0030] Figure 8 It is an internal structural schematic diagram of the left - to - right telescopic straight - rod mechanism in the top - view direction in the automatic first - aid device for airway foreign body obstruction of the present invention.

[0031] Figure 9 It is a structural schematic diagram of the induction patch and the adult version in the automatic first - aid device for airway foreign body obstruction of the present invention.

[0032] Figure 10 It is a structural schematic diagram of the induction patch and the pregnant - woman version in the automatic first - aid device for airway foreign body obstruction of the present invention.

[0033] Figure 11 It is an internal structural schematic diagram of the induction patch in the automatic first - aid device for airway foreign body obstruction of the present invention. Detailed Description of the Invention

[0034] To describe in detail the technical content, structural features, achieved objectives and effects of the present invention, the following is a detailed description in conjunction with the embodiments and with reference to the drawings.

[0035] Please refer to Figures 1 to 7 and Figure 11 , the automatic first-aid device 100 for airway foreign body obstruction of the present invention includes a backrest plate 1, a moving component 2, a pressing pad 3, a detection head 4 and an induction sheet 5 attached to the position to be pressed of the patient. The backrest plate 1 is made of a wine-red tempered glass panel or a red stainless steel wire-drawn panel, with a size of 2.2 meters in height, 1.0 meter in width and 0.2 meter in thickness. The backrest plate 1 is embedded in the wall for installation, which is not only beautiful but also does not occupy space, has little impact on the space and decoration, and is highly acceptable to the public, facilitating popularization and installation in hotels, restaurants and shopping malls. The moving component 2 is installed on the backrest plate 1, and both the pressing pad 3 and the detection head 4 are installed at the output end of the moving component 2. Both the pressing pad 3 and the detection head 4 move under the drive of the moving component 2, thereby driving the detection head 4 to move to the target position and driving the pressing pad 3 to move to repeatedly press the position to be pressed. The detection head 4 is electrically connected to the moving component 2, and the detection head 4 is used to detect the position information of the induction sheet 5. The moving component 2 drives the pressing pad 3 to press against the position to be pressed of the patient according to the information fed back by the detection head 4. That is, in use, the induction sheet 5 is attached to the position to be pressed of the patient, the moving component 2 drives the detection head 4 to approach the position to be impacted of the patient, the detection head 4 collects accurate position information and instructs the moving component 2 to work, and the pressing pad 3 repeatedly presses the position to be pressed under the drive of the moving component 2 to simulate the first-aid impact of a real person until the foreign body is spit out to achieve the purpose of first aid. The automatic first-aid device 100 for airway foreign body obstruction of the present invention can also be placed in public places or at home, and can quickly implement correct and effective rescue measures, reducing the disability rate and fatality rate of airway foreign body obstruction. Preferably, the detection head 4 is a camera, and dynamic camera calibration technology or other technologies are used for positioning to align the pressing pad 3 with the positioning sticker. The pressing pad 3 directly presses on the patient's body; its cross-sectional area is circular, with a diameter of about 8 cm and a thickness of about 3 cm, and the outer periphery is covered with latex or silicone. More specifically, as follows:

[0036] Please refer to Figure 1 and Figure 7, the moving component 2 includes a lifting mechanism 21, a front-back telescopic straight rod mechanism 22, a fast reciprocating straight rod mechanism 23, and a left-right telescopic straight rod mechanism 24. The lifting mechanism 21 is installed on the backrest plate 1. The front-back telescopic straight rod mechanism 22 is installed at the output end of the lifting mechanism 21 and is lifted and lowered under the drive of the lifting mechanism 21. The fast reciprocating straight rod mechanism 23 is installed at the output end of the front-back telescopic straight rod mechanism 22 and moves in the front-back direction of the backrest plate 1 under the drive of the front-back telescopic straight rod mechanism 22. The left-right telescopic straight rod mechanism 24 is installed at the output end of the fast reciprocating straight rod mechanism 23 and makes a reciprocating movement in the front-back direction of the backrest plate 1 under the drive of the fast reciprocating straight rod mechanism 23, so as to achieve the purpose of reciprocatingly impacting the position to be impacted of the patient. The detection head 4 and the pressure pad 3 are installed at the output end of the left-right telescopic straight rod mechanism 24 and move in the left-right direction of the backrest plate 1 under the drive of the left-right telescopic straight rod mechanism 24. In other words, the detection head 4 and the pressure pad 3 are driven by the moving component 2 to move in three axial directions of the backrest plate 1 and make a fast reciprocating movement.

[0037] Please refer to Figures 2 to 5 , the lifting mechanism 21 includes a driving motor 211, a guiding component 214, a lead screw 212, and a nut 213 sleeved on the lead screw 212. The driving motor 211 is installed on the backrest plate 1. The lead screw 212 is installed at the output end of the driving motor 211. The nut 213 is connected to the front-back telescopic straight rod mechanism 22, and the front-back telescopic straight rod mechanism 22 is lifted and lowered by the lifting of the nut 213. The guiding component 214 includes a guide rail 2141 and a slider 2142. The guide rail 2141 is installed on the backrest plate 1. The slider 2142 is connected to the nut 213, and the slider 2142 slides on the guide rail 2141, so that the nut 213 makes a smoother and more stable lifting movement.

[0038] Please refer to Figures 4 to 5 , the front-back telescopic straight rod mechanism 22 includes a telescopic hydraulic device 221 and a fixed rod 222. The fixed rod 222 is installed on the backrest plate 1. The telescopic hydraulic device 221 is installed on the fixed rod 222. The fast reciprocating straight rod mechanism 23 is installed at the output end of the telescopic hydraulic device 221 and moves in the front-back direction of the backrest plate 1 under the drive of the telescopic hydraulic device 221.

[0039] Please refer to Figures 4 to 6, The quick reciprocating straight rod mechanism 23 includes a rotary motor 231, a swing rod 232, and a connecting rod 233. The rotary motor 231 is installed at the output end of the front and rear telescopic straight rod mechanism 22. One end of the swing rod 232 is pivotally connected to the output end of the front and rear telescopic straight rod mechanism 22, and the other end of the swing rod 232 is pivotally connected to the connecting rod 233. The swing rod 232 swings under the drive of the rotary motor 231 and drives the connecting rod 233 to move along the front and rear direction of the backrest plate 1. The appropriate pressing depths for adults and children are different. For adults, it is preferably 6 cm, and for children, it is preferably 5 cm. Therefore, considering the different average heights of the navels of adults and children, the following design can be made: when the quick reciprocating straight rod mechanism 23 is at a height of more than 0.8 meters, the reciprocating distance is 6 cm; when the quick reciprocating straight rod mechanism 23 is below 0.8 meters, the reciprocating distance is 5 cm.

[0040] Please refer to Figures 7 to 8 , The left and right telescopic straight rod mechanism 24 includes a transverse hydraulic telescopic device 241 and a movable rod 242. The transverse hydraulic telescopic device 241 is installed at the output end of the quick reciprocating straight rod mechanism 23, and the movable rod 242 is installed at the output end of the transverse hydraulic telescopic device 241. The movable rod 242 moves along the left and right direction of the backrest plate 1 under the drive of the transverse hydraulic telescopic device 241. The detection head 4 and the pressure pad 3 are installed on the movable rod 242, and the detection head 4 and the pressure pad 3 face the backrest plate 1.

[0041] Please refer to Figures 1 to 2 , A storage grid 6 for placing an automated external defibrillator is provided on the backrest plate 1. The storage grid 6 is used to store the AED, that is, the automated external defibrillator, so that this device can also become a first aid station at the same time. When encountering a patient with cardiac arrest, the AED can be quickly obtained for defibrillation. In this way, the first aid functions for airway foreign body obstruction and defibrillation can be provided at the same time, filling the gap of dual-function first aid facilities in public places and homes.

[0042] Please refer to Figures 1 to 2 and Figures 9 to 11 , The induction sheet 5 includes an induction sheet main body 51, an annular adhesive layer 52, and a magnetic sheet 53. The magnetic sheet 53 is arranged on one side of the induction sheet main body 51, and the annular adhesive layer 52 is arranged on one side of the induction sheet main body 51 and surrounds the magnetic sheet 53. The detection head 4 obtains the pattern on the front of the induction sheet 5 through photography. The detection head 4 feeds back the obtained information to the moving component 2 and controls the moving action of the moving component 2. There is a pattern on the front of the induction sheet 5, which has two functions. One is for the detection head 4 to detect, and the other is to use a simple and intuitive pattern to prompt the rescuer's target attachment position, thereby improving the accuracy and convenience of use. The magnetic sheet 53 itself has magnetism and can be adsorbed on the backrest plate 1 made of magnetic metal. Therefore, in the standby state, the magnetic sheet 53 is attached to the backrest plate 1 for the user to take, improving the convenience of use. The annular adhesive layer 52 is used to paste on the patient's position to be impacted. The induction sheet 5 is set as an adult / child version and a pregnant woman version. The adult / child version is asFigure 9 As shown, the pregnant woman version is as Figure 10 shown. The induction sheet 5 for the adult / child version is used for the camera to locate. It is rectangular, about 10 cm long and about 6.1 cm wide. The front is a water-repellent smooth gel surface, guiding the rescuer to paste it to the correct position. The periphery of the back is a circular gel, which can be directly pasted on the patient's skin or clothing. The center is a magnetic sheet 53, which is usually magnetically pasted on the corresponding area of the panel. For the induction sheet 5 of the pregnant woman version, the structure of the pregnant woman version is the same as that of the adult / child version, but the surface pattern is different. The pressing point of the pregnant woman version is on the chest instead of the navel.

[0043] Please refer to Figures 1 to 2 , there is a human-shaped indication pattern on the backrest plate 1. The indication pattern is drawn on the panel, guiding the patient to stand, which is convenient for the first-time contact person to quickly understand the use. There are also texts marked on the backrest plate 1, which provide a concise graphic description of the device usage process, with clear guidance and simple operation, and the first-time contact person can also quickly master the use.

[0044] Please refer to Figures 1 to 2 , there is also a power switch 7 and an SOS key 8 on the backrest plate 1. The SOS key 8 does not require turning on the switch as a prerequisite and can be used with one key under any circumstances. Preferably, the SOS key 8 is connected to the infirmary of the place or the medical institution in the area, and can make a one-key call and provide location information.

[0045] Combined with Figures 1 to 11 , the usage process of the automatic first-aid device 100 for airway foreign body obstruction of the present invention is described in detail as follows:

[0046] 1. When it is determined that a severe airway foreign body obstruction has occurred, quickly guide the patient to stand in front of the device in the posture shown in the figure, with the back against the center of the panel, hold the patient's mandible with both hands, and guide him / her to open the mouth;

[0047] 2. Select the adult or pregnant woman induction sheet 5 and stick it on the corresponding part;

[0048] 3. Press the power switch 7;

[0049] 4. Press the SOS key 8;

[0050] 5. The detection head 4 descends, and scans and locates the induction sheet 5 through the detection head 4 to locate it at the horizontal position of the induction sheet 5; then move left and right through the moving component 2 to locate it at the vertical position of the induction sheet 5, and the positioning is completed here.

[0051] 6. The quick reciprocating straight rod mechanism 23 contracts, making the pressing pad 3 closely adhere to the patient's abdomen.

[0052] 7. Drive the punching pad to repeatedly impact the patient's abdomen through the quick reciprocating straight rod mechanism 23 until the airway obstruction is relieved or the patient loses consciousness.

[0053] It can be understood that when a foreign body airway obstruction occurs alone, the implementation steps will be different. In this case, the patient needs to quickly move to stand in front of the device by himself, then attach the induction sheet 5, press the SOS button 8, press the switch, and then raise both hands or hold the neck and wait for the pressure pad 3 to apply pressure.

[0054] By combining the backrest plate 1, the moving component 2, the pressure pad 3, the detection head 4 and the induction sheet 5 attached to the position to be pressed of the patient, etc., the moving component 2 is installed on the backrest plate 1, and both the pressure pad 3 and the detection head 4 are installed at the output end of the moving component 2. Both the pressure pad 3 and the detection head 4 move under the drive of the moving component 2, so as to drive the detection head 4 to move to the target position, and drive the pressure pad 3 to move to repeatedly press the position to be pressed. The detection head 4 is electrically connected to the moving component 2, and the detection head 4 is used to detect the position information of the induction sheet 5. The moving component 2 drives the pressure pad 3 to press against the position to be pressed of the patient according to the information fed back by the detection head 4. That is, when in use, the induction sheet 5 is attached to the position to be pressed of the patient, the moving component 2 drives the detection head 4 to approach the position to be impacted of the patient, the detection head 4 collects accurate position information and instructs the moving component 2 to work, and the pressure pad 3 repeatedly presses the position to be pressed under the drive of the moving component 2 until the foreign body is spit out to achieve the purpose of first aid.

[0055] The above-disclosed are only the preferred examples of the present invention. Of course, the scope of the rights of the present invention cannot be limited by this. Therefore, the equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. An automatic first-aid device for airway foreign body obstruction, characterized in that, it includes a backrest board, a moving component, a pressing pad, a detection head and an induction sheet attached to the position to be pressed on the patient. The moving component is installed on the backrest board, and the pressing pad and the detection head are both installed at the output end of the moving component. The pressing pad and the detection head both move under the drive of the moving component. The detection head is electrically connected to the moving component, and the detection head is used to detect the position information of the induction sheet. The moving component drives the pressing pad to press against the position to be pressed on the patient according to the information fed back by the detection head; a storage grid for placing an automatic external defibrillator is provided on the backrest board; the induction sheet includes an induction sheet body, an annular adhesive layer and a magnetic sheet. The magnetic sheet is arranged on one side of the induction sheet body, and the annular adhesive layer is arranged on one side of the induction sheet body and surrounds the magnetic sheet.

2. The automatic first-aid device for airway foreign body obstruction according to claim 1, characterized in that, the moving component includes a lifting mechanism, a front-back telescopic straight rod mechanism, a fast reciprocating straight rod mechanism and a left-right telescopic straight rod mechanism. The lifting mechanism is installed on the backrest board, the front-back telescopic straight rod mechanism is installed at the output end of the lifting mechanism, and the front-back telescopic straight rod mechanism lifts under the drive of the lifting mechanism. The fast reciprocating straight rod mechanism is installed at the output end of the front-back telescopic straight rod mechanism, and the fast reciprocating straight rod mechanism moves along the front-back direction of the backrest board under the drive of the front-back telescopic straight rod mechanism. The left-right telescopic straight rod mechanism is installed at the output end of the fast reciprocating straight rod mechanism, and the left-right telescopic straight rod mechanism makes a reciprocating movement along the front-back direction of the backrest board under the drive of the fast reciprocating straight rod mechanism. The detection head and the pressing pad are installed at the output end of the left-right telescopic straight rod mechanism, and the detection head and the pressing pad move along the left-right direction of the backrest board under the drive of the left-right telescopic straight rod mechanism.

3. The automatic first-aid device for airway foreign body obstruction according to claim 2, characterized in that, the lifting mechanism includes a driving motor, a lead screw and a nut sleeved on the lead screw. The driving motor is installed on the backrest board, the lead screw is installed at the output end of the driving motor, and the nut is connected to the front-back telescopic straight rod mechanism. The front-back telescopic straight rod mechanism is driven to lift by the lifting of the nut.

4. The automatic first-aid device for airway foreign body obstruction according to claim 3, characterized in that, the lifting mechanism further includes a guiding component, and the guiding component includes a guide rail and a slider. The guide rail is installed on the backrest board, the slider is connected to the nut, and the slider slides on the guide rail.

5. The automatic first-aid device for airway foreign body obstruction according to claim 2, characterized in that, The front-back telescopic straight rod mechanism includes a telescopic hydraulic device and a fixed rod. The fixed rod is installed on the backrest plate, the telescopic hydraulic device is installed on the fixed rod, the quick reciprocating straight rod mechanism is installed at the output end of the telescopic hydraulic device, and the quick reciprocating straight rod mechanism moves along the front-back direction of the backrest plate under the drive of the telescopic hydraulic device.

6. The automatic first-aid device for airway foreign body obstruction according to claim 2, characterized in that the quick reciprocating straight rod mechanism includes a rotating motor, a swing rod and a connecting rod. The rotating motor is installed at the output end of the front-back telescopic straight rod mechanism. One end of the swing rod is pivotally connected to the output end of the front-back telescopic straight rod mechanism, and the other end of the swing rod is pivotally connected to the connecting rod. The swing rod swings under the drive of the rotating motor and drives the connecting rod to move along the front-back direction of the backrest plate.

7. The automatic first-aid device for airway foreign body obstruction according to claim 2, characterized in that the left-right telescopic straight rod mechanism includes a transverse hydraulic telescopic device and a movable rod. The transverse hydraulic telescopic device is installed at the output end of the quick reciprocating straight rod mechanism, the movable rod is installed at the output end of the transverse hydraulic telescopic device, the movable rod moves along the left-right direction of the backrest plate under the drive of the transverse hydraulic telescopic device, and the detection head and the pressure pad are installed on the movable rod, and the detection head and the pressure pad face the backrest plate.

8. The automatic first-aid device for airway foreign body obstruction according to claim 1, characterized in that a human-shaped indication pattern is provided on the backrest plate.

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