Cardio-pulmonary resuscitation auxiliary device

Abstract

The invention discloses a cardio-pulmonary resuscitation auxiliary device, which relates to the technical field of medical instruments and comprises a main machine, two supporting arms and a back plate, each supporting arm comprises a fixed arm, two fixed seats, a fixed shaft, two folding arms and two clamps, the two ends of the fixed shaft are rotationally connected to the two fixed seats respectively, the upper ends of the folding arms are rotationally connected to the middle end of the fixed shaft, the two clamps are connected to the lower ends of the two folding arms respectively, and the folding arms are slidably connected to the corresponding fixed shafts; the two ends of the back plate are each rotationally connected with a clamping clamp, an avoiding space is formed between every two adjacent folding arms, the other two folding arms and the corresponding clamping clamps rotationally pass through the avoiding spaces, the clamping clamps can be connected to the opposite fixing shafts in a clamped mode, and the two ends of the back plate are rotationally connected with connecting shafts used for being connected with the clamping clamps in a clamped mode. And the two connecting shafts are detachably connected to the two corresponding fixed seats. The cardiac resuscitator can solve the problems that in the prior art, a cardiac resuscitator is large in overall size and inconvenient to carry.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a cardiopulmonary resuscitation auxiliary device. BACKGROUND

[0002] Cardiopulmonary resuscitation as a key first-aid measure for cardiac arrest is implemented within the first few minutes after cardiac arrest occurs, which can significantly improve the survival rate of patients. Effective cardiopulmonary resuscitation operation includes chest compression and artificial respiration, and chest compression is a key step to maintain blood circulation and provide oxygen and nutrients for important organs.

[0003] In the prior art, artificial chest compression is usually used, and manual compression operation consumes a lot of physical strength, and several people are needed to alternate chest compression, which will stop compression during the alternating process, resulting in a decrease in the success rate of rescue. In order to improve the problem of discontinuous compression existing in the artificial compression, a mechanical continuous compression is performed by a cardiopulmonary resuscitation machine or a cardiopulmonary resuscitation device in the prior art, such as Lucas 2 cardiopulmonary resuscitation machine (see website: https: / / www.bilibili.com / video / av339117334 / ?vd_source=50c25e9ed8fbe4ec14203e785c4a0b4c), Lucas 3 cardiopulmonary resuscitation machine (see website: https: / / www.bilibili.com / video / BV1Pi4y1Q79j / ?vd_source=50c25e9ed8fbe4ec14203e785c4a0b4c) and MCC-E1 3D compression electric cardiopulmonary resuscitation machine (see website: https: / / www.bilibili.com / video / BV1dp4y1v7bZ / ?vd_source=50c25e9ed8fbe4ec14203e785c4a0b4c). For such a cardiopulmonary resuscitation machine or cardiopulmonary resuscitation device, it usually includes a main machine, two support arms fixedly connected to the two sides of the main machine at the upper end, and a support structure detachably connected to the lower end of the two support arms at both ends. The main machine and the two support arms together form an inverted "U"-shaped structure opening downward toward the chest of the human body. The main machine includes a compression part located at the opening of the "U" shape, and the support structure is placed on the back of the patient during use. After adjusting the correct compression position, the lower end of the two support arms is respectively connected with the two ends of the support structure, and the compression part of the main machine is used for compression. In the prior art, a cardiopulmonary resuscitation machine is also disclosed in Chinese Patent No. CN222657438U, which includes a compression assembly, a support arm and a bottom plate. One end of the support arm is detachably connected to the bottom plate, and the other end is rotatably connected to the compression assembly through a rotating shaft assembly. A space for placing the patient is formed between the compression assembly, the support arm and the bottom plate.

[0004] For the above-mentioned cardiopulmonary resuscitation machine, the support structure is usually a back plate of a plate structure as shown in Lucas or a flexible folding pad as shown in MCC-E1. During use, the flexible deformation of the flexible folding pad of the MCC-E1 3D compression electric cardiopulmonary resuscitation machine causes the flexible deformation of the flexible folding pad, and the compression use stability cannot be compared with the stability of the plate structure. But in terms of storage and portability, although the flexible folding pad is more convenient to store and carry than the back plate of the plate structure, the "U" shaped structure formed by the main machine and the two support arms still occupies a large space, which is not convenient to carry and is not conducive to market popularization. SUMMARY

[0005] The main purpose of the present application is to provide a cardiopulmonary resuscitation auxiliary device to improve the problem of large overall volume of the existing cardiopulmonary resuscitation machine, which is not convenient to carry.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technology: a cardiopulmonary resuscitation auxiliary device, comprising a main machine, two support arms with upper ends fixedly connected to the two sides of the main machine, and a back plate with two ends detachably connected to the lower ends of the two support arms, the main machine is connected with a pressing part, the two support arms each include a fixed arm with an upper end fixedly connected to the main machine, two fixed seats spaced apart and fixedly connected to the lower end of the fixed arm, two fixed shafts with two ends rotatably connected to the two fixed seats, two folding arms with upper ends rotatably connected to the middle end of the fixed shaft, and two clamps connected to the lower end of the two folding arms, respectively, a storage space for installing the pressing part is formed between the two fixed arms, each folding arm is slidably connected to the corresponding fixed shaft, and an avoidance space is formed between the adjacent two folding arms, the avoidance space is for the other two folding arms and the corresponding clamps to rotate through, the clamps can be clamped to the opposite fixed shafts, and the two ends of the back plate are rotatably connected with a connecting shaft for clamping the clamps, and the two connecting shafts are detachably connected to the corresponding two fixed seats.

[0007] Further, the lower end of each fixed seat is connected with an end seat, each end seat is provided with a mounting port, the mounting port is fixedly connected with an elastic clamp, the elastic clamp has a clamping port for the connecting shaft to enter and exit, and the two ends of the clamping port are fixedly connected with arc-shaped guide plates, and the two arc-shaped guide plates extend in opposite directions.

[0008] Further, each of the fixing bases is provided with a plurality of positioning holes, each of the positioning holes is arranged in a circumferential direction with the corresponding fixing shaft as a central axis, each of the end bases is rotationally connected to the corresponding fixing shaft, each of the end bases is provided with a plurality of threaded holes, each of the threaded holes is arranged in a circumferential direction with the corresponding fixing shaft as a central axis, and at least one threaded hole is in communication with one of the positioning holes, and the threaded hole is threadedly connected with a positioning rod, and the positioning rod is inserted into the positioning hole in communication with the threaded hole.

[0009] Further, each of the folding arms is detachably connected with a limiting piece, each of the limiting pieces comprises a limiting bolt slidingly connected to the folding arm and a nut threadedly connected to the limiting bolt, and the limiting bolt is inserted into the elastic clamp, and the nut abuts against the elastic clamp.

[0010] Further, each of the end bases is fixedly connected with two ear plates, each of the ear plates is rotationally connected to the corresponding fixing shaft, and the lower ends of the two fixing bases are located between the corresponding two ear plates, and each of the threaded holes is provided in one of the ear plates.

[0011] Further, each of the folding arms comprises a sleeve rod rotationally connected to the fixing shaft at an upper end and a screw rod threadedly connected to the sleeve rod at an upper end, and the clamp is rotationally connected to the lower end of the screw rod.

[0012] Further, the lower end of the screw rod is provided with a stepped hole, and the clamp is fixedly connected with a stepped shaft adapted to the stepped hole and rotationally connected to the stepped hole.

[0013] Further, the clamp is provided with a clamping groove, and the clamp is threadedly connected with a plug rod inserted into the clamping groove, and the fixing shaft and the connecting shaft can enter the clamping groove, and the plug rod can limit the fixing shaft or the connecting shaft in the clamping groove.

[0014] Further, the back plate comprises a middle plate and two end plates slidingly connected to the two ends of the middle plate, respectively, the two ends of the middle plate are provided with a plurality of limiting grooves at intervals, the upper sides of the two end plates are provided with a plurality of insertion grooves at intervals, at least one of the limiting grooves is in communication with the corresponding one of the insertion grooves, and the limiting groove and the insertion groove in communication are simultaneously provided with a limiting plate.

[0015] Further, the upper sides of the two ends of the middle plate are provided with operation openings, and the limiting plate is provided with a lifting opening.

[0016] Compared with the prior art, the application can bring the following technical effects: the card holder is separated from the connecting shaft when not in use, and the folding arms are reversely rotated to connect the card holder with the fixing shaft. Since the space for the two card holders to be clamped on the fixing shaft is formed between the two adjacent folding arms, the card holder at the end of the reversely rotated folding arm can be clamped on the corresponding fixing shaft, so that the folding and storage of the four folding arms are realized. Then, the back plate can be connected with the corresponding fixing seat through the connecting shafts at both ends of the back plate to realize the folding and storage of the back plate, thereby solving the problem of the large overall volume of the heart resuscitation machine in the prior art, which is inconvenient to carry. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which form a part of this application, are used to provide further understanding of the application, so that the other features, purposes and advantages of the application become more apparent. The illustrative embodiment drawings of the application and their descriptions serve to explain the application, and do not constitute an improper limitation on the application. In the drawings: Figure 1 is a use state diagram of the cardiopulmonary resuscitation auxiliary device of the application; Figure 2 is an enlarged view of part A in Figure 1 Figure 3 is an enlarged view of part B in Figure 1 Figure 4 is an enlarged view of part C in Figure 1 Figure 5 is a partial structure explosion diagram of Figure 1 Figure 6 is an enlarged view of part D in Figure 5 Figure 7 is a folding state diagram of the cardiopulmonary resuscitation auxiliary device of the application; Figure 8 is an enlarged view of part E in Figure 7

[0018] In the drawings: 1, main machine; 11, pressing part; 2, support arm; 21, fixed arm; 22, fixing seat; 221, positioning hole; 23, fixing shaft; 24, folding arm; 241, sleeve rod; 242, screw rod; 25, card holder; 251, stepped shaft; 252, clamping groove; 253, plug rod; 26, end seat; 261, mounting port; 262, threaded hole; 263, positioning rod; 264, ear plate; 27, elastic clamp; 271, clamping port; 272, arc-shaped guide plate; ​​​​​​3, back plate; 31, middle plate; 311, limiting groove; 312, operation port; 32, end plate; 321, insertion slot; 33, limiting plate; 331, pulling port; 4, connecting shaft; 5, limiting piece; 51, limiting bolt; 52, nut. DETAILED DESCRIPTION

[0019] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0020] REFERENCE Figures 1-8 A cardiopulmonary resuscitation auxiliary device, comprising a main machine 1, two support arms 2 fixedly connected to the two sides of the main machine 1 at the upper end, and a back plate 3 detachably connected to the lower end of the two support arms 2 at both ends, the main machine 1 is connected with a pressing part 11, the two support arms 2 each comprise a fixed arm 21 fixedly connected to the main machine 1 at the upper end, two fixed seats 22 spaced apart and fixedly connected to the lower end of the fixed arm 21, two fixed shafts 23 rotatably connected to the two fixed seats 22 at both ends, two folding arms 24 rotatably connected to the middle end of the two fixed shafts 23 at the upper end, and two clamps 25 connected to the lower end of the two folding arms 24 respectively, a receiving space for installing the pressing part 11 is formed between the two fixed arms 21, each folding arm 24 is slidably connected to the corresponding fixed shaft 23, and an avoiding space is formed between the adjacent two folding arms 24, the avoiding space is for the other two folding arms 24 and the corresponding clamps 25 to rotate through, the clamp 25 can be clamped to the opposite fixed shaft 23, and the two ends of the back plate 3 are rotatably connected with a connecting shaft 4 for clamping the clamp 25, and the two connecting shafts 4 are detachably connected to the corresponding two fixed seats 22.

[0021] In use, the back plate 3 is placed on the back of the patient, and each folding arm 24 is rotated until the clamp 25 at the lower end is connected with the connecting shaft 4, and after adjusting the position of the main machine 1, the cardiopulmonary resuscitation operation can be performed through the main machine 1.

[0022] When not in use, the clamp 25 is detached from the connecting shaft 4, and each folding arm 24 is reversely rotated so that the clamp 25 is connected with the fixed shaft 23. Since the space between the adjacent two folding arms 24 is formed for the two clamps 25 to be clamped to the fixed shaft 23, the clamp 25 at the end of the reversely rotated folding arm 24 can be clamped to the corresponding fixed shaft 23, so that the folding and storage of the four folding arms 24 are realized. Then, the back plate 3 can be connected with the corresponding fixed seat 22 through the connecting shaft 4 at both ends to realize the folding and storage of the back plate 3, thereby improving the problem that the overall volume of the existing cardiopulmonary resuscitation machine is large and inconvenient to carry.

[0023] Since the receiving space for mounting the pressing part 11 is formed between the two fixed arms 21, the pressing part 11 will not hinder the folding of the folding arm 24, and the folded folding arm 24 can surround the pressing part 11 in the receiving space to form protection for the pressing part 11.

[0024] In addition, the support of the four folding arms 24 can ensure the stability of the main machine 1 during the pressing process. While ensuring stable support, the main machine 1 can indirectly adjust the pressing position of the main machine 1 on the human body by sliding relative to the folding arm 24 through the fixed shaft 23.

[0025] It should be noted that the specific implementation of the pressing manner and principle of the main machine 1 is a conventional technical means in the art, and the present application does not make specific elaboration.

[0026] Referring to Figures 1-6 The lower end of each fixed seat 22 is connected with an end seat 26, and each end seat 26 is provided with a mounting port 261. The mounting port 261 is fixedly connected with an elastic clamp 27. The elastic clamp 27 has a clamping port 271 for the connection shaft 4 to pass through, and the two ends of the clamping port 271 are fixedly connected with arc-shaped guide plates 272. The two arc-shaped guide plates 272 extend in opposite directions.

[0027] When the back plate 3 is connected with the corresponding fixed seat 22 through the connection shaft 4 at both ends to realize the folding and storage action of the back plate 3, the connection shaft 4 can be clamped into the elastic clamp 27 from the clamping port 271. During the clamping process, the arc-shaped guide plates 272 can form a guiding action on the connection shaft 4. Under the extrusion of the connection shaft 4, the elastic clamp 27 deforms adaptively.

[0028] The connection shaft 4 is in a cylindrical structure, and the inner side of the elastic clamp 27 is a matching cylindrical surface, so as to ensure that the connection shaft 4 can be smoothly extruded out of the elastic clamp 27.

[0029] Each end seat 26 is fixedly connected with two ear plates 264, each ear plate 264 is rotatably connected to the corresponding fixed shaft 23, and the lower ends of the two fixed seats 22 are located between the corresponding two ear plates 264. Each threaded hole 262 is provided in one of the ear plates 264.

[0030] Each fixed seat 22 is provided with a plurality of positioning holes 221, each positioning hole 221 is arranged in a circumferential direction with the corresponding fixed shaft 23 as the center axis. Each end seat 26 is rotatably connected to the corresponding fixed shaft 23. Each end seat 26 is provided with a plurality of threaded holes 262. Each threaded hole 262 is arranged in a circumferential direction with the corresponding fixed shaft 23 as the center axis. At least one threaded hole 262 can communicate with one of the positioning holes 221. The threaded hole 262 is threadedly connected with a positioning rod 263, and the positioning rod 263 is inserted into the positioning hole 221 which communicates with the threaded hole 262.

[0031] Each end seat 26 is rotatably connected to the corresponding fixed seat 22 with the corresponding fixed shaft 23 as the central axis, so as to change the opening angle of the elastic clamp 27 by rotating the end seat 26, so that the connecting shaft 4 can be more smoothly pressed into the elastic clamp 27 under the guidance of the arc-shaped guide plate 272.

[0032] Each folding arm 24 is detachably connected to the limiting piece 5, each limiting piece 5 includes a limiting bolt 51 slidably connected to the folding arm 24 and a nut 52 threadedly connected to the limiting bolt 51, and the limiting bolt 51 is inserted into the elastic clamp 27, and the nut 52 abuts against the elastic clamp 27.

[0033] When performing cardiopulmonary resuscitation, the folding arm 24 is connected to the connecting shaft 4 through the clamp 25 at the same time, and the limiting bolt 51 is inserted into the elastic clamp 27 at the same time, and the elastic clamp 27 and the fixed shaft 23 jointly limit the folding arm 24 to ensure the stability of the support of the folding arm 24.

[0034] In addition, after the opening angle of the elastic clamp 27 is changed by rotating the end seat 26, the support angle of the folding arm 24 is indirectly changed to improve the use effect.

[0035] The limiting bolt 51 is slidably connected to the folding arm 24, so that when folding and storing, the folding arm 24 is prevented from being hindered by sliding the limiting bolt 51, and the nut 52 can prevent the limiting bolt 51 from falling off.

[0036] Referring to Figures 1-3 Each folding arm 24 includes a sleeve rod 241 rotatably connected to the upper end of the fixed shaft 23 and a screw rod 242 threadedly connected to the lower end of the sleeve rod 241, and the clamp 25 is rotatably connected to the lower end of the screw rod 242.

[0037] So that by rotating the screw rod 242, the overall length of the folding arm 24 is changed, which is convenient for adjusting the height of the main machine 1 relative to the patient during cardiopulmonary resuscitation, and also convenient for ensuring that the clamp 25 can be smoothly clamped on the fixed shaft 23 during storage.

[0038] The clamp 25 is rotatably connected to the screw rod 242, so that the clamp 25 can be clamped on the connecting shaft 4 and the fixed shaft 23 at different time periods.

[0039] The lower end of the screw rod 242 is provided with a stepped hole, and the clamp 25 is fixedly connected with a stepped shaft 251 adapted to the stepped hole and rotatably connected to the stepped hole.

[0040] So that the rotation connection between the clamp 25 and the screw rod 242 is realized through the stepped shaft 251.

[0041] Referring to Figures 1-4The clamping groove 252 is formed through the clamping piece 25, and the clamping piece 25 is threadedly connected to the plug rod 253 inserted into the clamping groove 252, and the fixing shaft 23 and the connecting shaft 4 can enter the clamping groove 252, and the plug rod 253 can limit the fixing shaft 23 or the connecting shaft 4 in the clamping groove 252.

[0042] In use, the connecting shaft 4 is inserted into the clamping groove 252, and then the plug rod 253 is threadedly rotated to extend into the clamping groove 252 and block the connecting shaft 4, so as to prevent the connecting shaft 4 from being separated from the clamping piece 25 and ensure the connection stability between the supporting arm 2 and the back plate 3 during pressing.

[0043] In folding, the fixing shaft 23 is inserted into the clamping groove 252, and then the plug rod 253 is threadedly rotated to extend into the clamping groove 252 and block the fixing shaft 23, so as to prevent the fixing shaft 23 from being separated from the clamping piece 25 and ensure that the folding arm 24 will not be separated from the fixing shaft 23 during folding.

[0044] Referring to Figures 1-4 The back plate 3 comprises a middle plate 31 and two end plates 32 slidably connected to two ends of the middle plate 31, a plurality of limiting grooves 311 are formed at two ends of the middle plate 31, a plurality of insertion grooves 321 are formed at the upper sides of the two end plates 32, at least one limiting groove 311 and one insertion groove 321 are in communication, and the limiting groove 311 and the insertion groove 321 in communication are simultaneously inserted with a limiting plate 33.

[0045] In use, the overall length of the back plate 3 can be changed by sliding the end plate 32 relative to the middle plate 31, so as to be used for patients with different chest widths, and the smooth connection of the connecting shaft 4 and the clamping piece 25 can be ensured.

[0046] After the length is changed by sliding, the connection between the middle plate 31 and the end plate 32 can be ensured by inserting the limiting plate 33.

[0047] Operation openings 312 are formed at the upper sides of the two ends of the middle plate 31, and a pulling opening 331 is formed through the limiting plate 33.

[0048] So as to smoothly disassemble and assemble the limiting plate 33 through the pulling opening 331.

[0049] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cardiopulmonary resuscitation auxiliary device, comprising a main machine (1), two support arms (2) with upper ends fixedly connected to the two sides of the main machine (1) and a backboard (3) with two ends detachably connected to the lower ends of the two support arms (2), and the main machine (1) is connected with a pressing part (11), characterized in that, Both of the support arms (2) comprise a fixed arm (21) fixedly connected to the main machine (1), two fixed seats (22) spaced apart and fixedly connected to lower ends of the fixed arm (21), two fixed shafts (23) rotatably connected to the two fixed seats (22) respectively, two folding arms (24) rotatably connected to middle ends of the fixed shafts (23) respectively, and two clamps (25) connected to lower ends of the two folding arms (24) respectively, a receiving space for mounting the pressing part (11) is formed between the two fixed arms (21), each folding arm (24) is slidably connected to the corresponding fixed shaft (23), and an avoiding space is formed between the two adjacent folding arms (24), the avoiding space is used for the rotation of the other two folding arms (24) and the corresponding clamps (25), the clamp (25) can be clamped on the opposite fixed shaft (23), and both ends of the back plate (3) are rotatably connected with a connecting shaft (4) for clamping the clamp (25), and both of the connecting shafts (4) are detachably connected to the corresponding two fixed seats (22).

2. A cardiopulmonary resuscitation assist device as defined in claim 1, wherein, The lower end of each fixed seat (22) is connected with an end seat (26), each end seat (26) is provided with a mounting hole (261), the mounting hole (261) is fixedly connected with an elastic clamp (27), the elastic clamp (27) has a clamping hole (271) for the in-out of the connecting shaft (4), and both ends of the clamping hole (271) are fixedly connected with arc-shaped guide plates (272), and the two arc-shaped guide plates (272) extend in opposite directions.

3. A cardiopulmonary resuscitation assist device as defined in claim 2, wherein, Each fixed seat (22) is provided with a plurality of positioning holes (221), each positioning hole (221) is arranged in a circumferential direction with the corresponding fixed shaft (23) as the center axis, each end seat (26) is rotatably connected to the corresponding fixed shaft (23), each end seat (26) is provided with a plurality of threaded holes (262), each threaded hole (262) is arranged in a circumferential direction with the corresponding fixed shaft (23) as the center axis, and at least one threaded hole (262) can communicate with one of the positioning holes (221), the threaded hole (262) is threadedly connected with a positioning rod (263), and the positioning rod (263) is inserted into the positioning hole (221) which communicates with the threaded hole (262).

4. A cardiopulmonary resuscitation assist device as defined in claim 3, wherein, Each folding arm (24) is detachably connected with a limiting piece (5), each limiting piece (5) comprises a limiting bolt (51) slidably connected to the folding arm (24) and a nut (52) threadedly connected to the limiting bolt (51), the limiting bolt (51) is inserted into the elastic clamp (27), and the nut (52) abuts against the elastic clamp (27).

5. A cardiopulmonary resuscitation assist device as defined in claim 3, wherein, Each of the end seats (26) is fixedly connected with two ear plates (264), each of the ear plates (264) is rotationally connected to the corresponding fixed shaft (23), and the lower end of the two fixed seats (22) is located between the corresponding two ear plates (264), each of the threaded holes (262) is arranged in one of the ear plates (264).

6. A cardiopulmonary resuscitation assist device as defined in claim 1, wherein, Each of the folding arms (24) comprises a sleeve rod (241) rotationally connected to the upper end of the fixed shaft (23) and a screw rod (242) threadedly connected to the lower end of the sleeve rod (241), and the clamp (25) is rotationally connected to the lower end of the screw rod (242).

7. A cardiopulmonary resuscitation assist device as defined in claim 6, wherein, The lower end of the screw rod (242) is provided with a stepped hole, and the clamp (25) is fixedly connected with a stepped shaft (251) adapted to the stepped hole and rotationally connected to the stepped hole.

8. A cardiopulmonary resuscitation assist device as in claim 1, wherein, The clamp (25) is provided with a clamping groove (252), and the clamp (25) is threadedly connected with a plug rod (253) inserted into the clamping groove (252), the fixed shaft (23) and the connecting shaft (4) can enter the clamping groove (252), and the plug rod (253) can limit the fixed shaft (23) or the connecting shaft (4) in the clamping groove (252).

9. A cardiopulmonary resuscitation assist device as in any of claims 1-8, characterized in that, The back plate (3) comprises a middle plate (31) and two end plates (32) slidably connected to the two ends of the middle plate (31), the two ends of the middle plate (31) are spaced apart and provided with a plurality of limiting grooves (311), the upper sides of the two end plates (32) are spaced apart and provided with a plurality of insertion grooves (321), and at least one of the limiting grooves (311) and the corresponding one of the insertion grooves (321) are in communication, and the limiting groove (311) and the insertion groove (321) in communication are simultaneously inserted with a limiting plate (33).

10. A cardiopulmonary resuscitation assist device as defined in claim 9, wherein, The upper sides of the two ends of the middle plate (31) are provided with operation openings (312), and the limiting plate (33) is provided with a lifting opening (331).

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