Anti-suffocation device for removing foreign matter from blocking airway

Abstract

The invention discloses an anti-suffocation device for removing foreign matter from blocking an airway, and belongs to the technical field of first-aid medical supplies, and the anti-suffocation device comprises a vertical barrel vertically arranged on the ground, a piston head slidably and hermetically arranged in the vertical barrel, an air outlet pipe laterally extending from the top end of the vertical barrel, an end barrel connected to the tail end of the air pipe, a mask with a downward opening arranged on the lower side of the end barrel, and an air hole formed in the upper side of the end barrel. According to the device, operation deviation is avoided through the vertical supporting structure, downward pressure is directly converted into efficient suction power in combination with directional airflow control of the one-way valves, and the problems that traditional equipment depends on manual fixation, the force application direction is unstable and the suction efficiency is low are solved; the device is particularly suitable for coma or unmatched patients, and the first-aid success rate and safety are remarkably improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of first-aid medical supplies, and particularly relates to an anti-asphyxia device for removing foreign objects blocking the airway. Background Art

[0002] In the first-aid scenario of airway foreign object obstruction, manual aspiration devices are important rescue tools, but traditional devices have significant defects. Firstly, most devices lack a stable support structure, and during operation, they rely on the rescuer to manually fix the device, resulting in an unstable force application direction, which easily causes piston offset or mask air leakage, affecting the negative pressure aspiration effect. Secondly, the fit between the mask and the patient's face is insufficient. Especially when the patient is in the supine position, it is difficult to maintain the airtightness of the air passage, resulting in a reduced efficiency of foreign object removal and even a risk of secondary aspiration. In addition, the operation direction of traditional devices does not conform to the natural force application habits of the human body, which not only increases the physical consumption of the rescuer but also easily causes displacement of the instrument or soft tissue injury to the patient due to improper operation. These problems make it difficult for the existing technology to balance efficiency, safety, and universality in emergency situations. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide an anti-asphyxia device for removing foreign objects blocking the airway, with simple force application and improved first-aid effect.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] The present invention includes a vertical cylinder placed on the ground, the cylinder opening facing downward, a piston head is slidably and sealingly arranged inside the cylinder, a sliding column is connected to the top of the piston head, and the sliding column passes through the top of the cylinder and is connected with a handle; a trachea extends from the side of the top of the cylinder, a terminal cylinder is arranged at the end of the trachea, a mask with a downward opening is connected to the lower side of the terminal cylinder, an air hole is opened on the upper side of the terminal cylinder, and further includes two first one-way air valves and a second one-way air valve. The first one-way air valve is located at the air hole, restricting the air flow direction from the terminal cylinder to the outside, and the second one-way air valve is located at the connection between the terminal cylinder and the mask, restricting the air flow direction from the mask towards the terminal cylinder.

[0006] Further, the terminal cylinder is horizontally placed, an inner cylinder is rotatably and sealingly arranged coaxially inside the terminal cylinder, the inner cylinder exposes from the end of the terminal cylinder, through holes communicating with the air hole and the mask are respectively opened on the upper and lower sides of the inner cylinder, and the first one-way air valve and the second one-way air valve are respectively located at the positions of the two through holes; by rotating the inner cylinder, the positions of the first one-way air valve and the second one-way air valve are exchanged, so that the device is used for assisted inhalation.

[0007] Further, a support rod extends inward from the lower end of the cylinder, a guiding vertical rod with a rectangular cross-section extends upward from the support rod, a sliding hole with a rectangular cross-section is opened upward along the sliding column from the bottom side of the piston head, and the two outer sides of the guiding vertical rod are respectively slidably fitted with the two inner sides of the sliding hole.

[0008] Further, a rotating square block is rotatably provided at the top end of the guiding vertical rod. A retaining step is provided outwardly at the middle position on one side of the guiding vertical rod that is not in sliding fit with the sliding hole. A plurality of support springs are provided around the sliding column at the top end of the piston head. The top ends of the plurality of support springs are simultaneously connected to a sliding ring. When the piston head is pulled upward to the limit distance, the height of the bottom end of the piston head exceeds the height of the bottom end of the rotating square block. The piston head is rotated 180°, so that the guiding vertical rod slides into the sliding hole again, and the retaining step is blocked on the bottom side of the piston head.

[0009] Further, a regulating cylinder is threadedly connected to the outer side of the bottom end of the vertical cylinder. The regulating cylinder contacts the ground. By rotating the regulating cylinder, the height of the vertical cylinder from the ground can be adjusted.

[0010] Further, a pressing plate for facilitating one-handed pressing is provided on the outer side of the bottom end of the regulating cylinder.

[0011] Further, the face mask is threadedly connected to the end cylinder, and the two ends of the air pipe are respectively threadedly connected to the end cylinder and the vertical cylinder.

[0012] The beneficial effects of the present invention are as follows:

[0013] In the present invention, the vertical cylinder is vertically placed on the ground, and a piston head with sliding seal is arranged inside. The top of the piston head is connected to a handle through a sliding column, forming a manual operation mechanism. When the vertical cylinder is vertically placed, its bottom contacts the ground to form a stable support, avoiding the device from tipping or sliding during operation. The opening of the face mask faces downward, fitting the face of the patient when lying supine. The vertical layout of the vertical cylinder enables the operator to push and pull the handle in the vertical direction when standing or squatting for first aid, avoiding lateral force causing the device to shift. The operator drives the piston to move by pressing or pulling the handle downward, and the force application direction is consistent with the axis of the vertical cylinder, which conforms to ergonomics and is convenient for exerting force. During the first aid process, when the piston head moves downward, the internal volume of the vertical cylinder increases, forming a negative pressure. At this time, the first one-way air valve closes to prevent external air from entering the end cylinder through the air hole, and the second one-way air valve opens, and the gas and foreign objects in the patient's airway are inhaled into the end cylinder and the vertical cylinder through the face mask. When the piston head moves upward, the internal volume of the vertical cylinder decreases, and the gas is compressed. At this time, the second one-way air valve closes to prevent the air flow from flowing back from the end cylinder to the face mask, and the first one-way air valve opens, and the compressed gas is discharged to the outside through the air hole. This device sets the downward pressing operation as foreign object extraction, which is more suitable for the force application operation during first aid, can apply force more quickly, extract foreign objects, and fixes the device at a stable position through the design of the vertical cylinder contacting the ground. The operator only needs to focus on pushing and pulling the handle up and down without being distracted by fixing the device, and it is especially suitable for unconscious or uncooperative patients.

[0014] Other advantages, objects, and features of the present invention will be set forth in the following description, and to some extent will be obvious to those skilled in the art, or can be taught to those skilled in the art from the practice of the present invention. The objects and other advantages of the present invention can be achieved and obtained through the following description. Brief Description of the Drawings

[0015] In order to make the objectives, technical solutions, and beneficial effects of the present invention clearer, the following drawings are provided to illustrate the present invention:

[0016] Figure 1 Overall schematic diagram of the device according to an embodiment of the present invention;

[0017] Figure 2 Cross-sectional view of the device according to an embodiment of the present invention;

[0018] Figure 3 Cross-sectional view of the state of the end cylinder and the inner cylinder sucking objects according to an embodiment of the present invention;

[0019] Figure 4 Cross-sectional view of the state of the end cylinder and the inner cylinder blowing air according to an embodiment of the present invention;

[0020] Figure 5 Schematic diagram of the state of the piston head moving downward according to an embodiment of the present invention;

[0021] Figure 6 Schematic diagram of the state of the piston head moving upward according to an embodiment of the present invention;

[0022] Figure 7 Schematic diagram of the state of the piston head rotating according to an embodiment of the present invention;

[0023] The reference signs in the drawings are as follows: 1, vertical cylinder; 11, support rod; 12, guide vertical rod; 121, step; 13, rotating square block; 14, adjusting cylinder; 141, pressing plate; 2, piston head; 21, support spring; 22, sliding ring; 3, sliding column; 31, sliding hole; 4, handle; 5, air pipe; 6, end cylinder; 61, air hole; 7, face mask; 81, first one-way air valve; 82, second one-way air valve; 9, inner cylinder; 91, through hole. Detailed Description of the Invention

[0024] The present invention discloses an anti-asphyxia device for removing foreign object blockage from the airway, such as Figure 1 , Figure 2 and Figure 3As shown in the figure, it includes a vertical cylinder 1 standing on the ground. The cylinder 1 has an opening facing downwards. A piston head 2 is slidably and sealingly arranged inside the cylinder 1. The top of the piston head 2 is connected to a sliding column 3. The sliding column 3 passes through the top end of the cylinder 1 and is connected with a handle 4. A trachea 5 extends from the side of the top end of the cylinder 1. The end of the trachea 5 is provided with an end cylinder 6. The lower side of the end cylinder 6 is connected with a face mask 7 with an opening facing downwards. An air hole 61 is opened on the upper side of the end cylinder 6. It also includes two first one-way air valves 81 and a second one-way air valve 82. The first one-way air valve 81 is located at the air hole 61, restricting the air flow from flowing from the end cylinder 6 to the outside. The second one-way air valve 82 is located at the connection between the end cylinder 6 and the face mask 7, restricting the air flow from flowing from the face mask 7 towards the end cylinder 6.

[0025] In this device, the cylinder 1 is vertically placed on the ground, and a slidably and sealingly arranged piston head 2 is provided inside. The top of the piston head 2 is connected to the handle 4 through the sliding column 3, forming a manual operation mechanism. When the cylinder 1 is vertically placed, its bottom contacts the ground to form a stable support, avoiding the device from tipping or sliding during operation. The face mask 7 has an opening facing downwards, fitting the face of the patient when lying supine. The vertical layout of the cylinder 1 enables the operator to push and pull the handle 4 in the vertical direction when standing or squatting for rescue, avoiding the device from shifting due to lateral force application. The operator drives the piston to move by pressing or pulling the handle 4 downwards. The force application direction is consistent with the axis of the cylinder 1, which conforms to ergonomics and is convenient for exerting force. During the first aid process, when the piston head 2 moves downwards, the internal volume of the cylinder 1 increases, forming a negative pressure. At this time, the first one-way air valve 81 closes to prevent outside air from entering the end cylinder 6 through the air hole 61, and the second one-way air valve 82 opens, and the gas and foreign objects in the patient's airway are inhaled into the end cylinder 6 and the cylinder 1 through the face mask 7. When the piston head 2 moves upwards, the internal volume of the cylinder 1 decreases, and the gas is compressed. At this time, the second one-way air valve 82 closes to prevent the air flow from flowing back from the end cylinder 6 to the face mask 7, and the first one-way air valve 81 opens, and the compressed gas is discharged to the outside through the air hole 61. By setting the downward pressing operation as foreign object extraction, this device is more suitable for the force application operation during first aid, can exert force more quickly, and extract foreign objects. And through the design of the vertical cylinder 1 contacting the ground, the device is fixed in a stable position. The operator only needs to focus on pushing and pulling the handle 4 up and down, without being distracted by fixing the device, and is especially suitable for unconscious or uncooperative patients.

[0026] In a further solution, as Figure 3 and Figure 4 shown, the end cylinder 6 is horizontally placed. An inner cylinder 9 is rotatably and sealingly arranged coaxially inside the end cylinder 6. The inner cylinder 9 is exposed from the end of the end cylinder 6. Through holes 91 communicating with the air hole 61 and the face mask 7 are respectively opened on the upper and lower sides of the inner cylinder 9. The first one-way air valve 81 and the second one-way air valve 82 are respectively located at the positions of the two through holes 91. Rotating the inner cylinder 9 exchanges the positions of the first one-way air valve 81 and the second one-way air valve 82, so that this device is used for inspiratory assistance.

[0027] In this structure, a rotatable inner cylinder 9 is coaxially installed inside the horizontally placed end cylinder 6. Both ends of the inner cylinder 9 protrude from the end cylinder 6, facilitating manual operation. Rotating the inner cylinder 9 by 180° causes the positions of the two through holes 91 to be interchanged, thereby realizing the function exchange of the one-way valve. The movement direction of the piston remains unchanged in both modes, but the air flow direction is reversed due to the change in the position of the one-way valve. Through this structure, the multi-functional integrated design of this device is realized, switching from the foreign body aspiration mode to the breathing assistance mode. These two modes cover the complete process of first aid for airway obstruction, that is, first removing foreign bodies and then maintaining ventilation, avoiding the time loss of replacing equipment. This structure can complete the mode switch by rotating the inner cylinder 9, which only takes 1 - 2 seconds, suitable for the time-critical scenario of first aid. The mode switch does not require tools or complex steps, and even non-professionals can quickly master it.

[0028] In a further solution, as Figure 5 shown, a support rod 11 extends inward from the lower end of the vertical cylinder 1, and a guiding vertical rod 12 with a rectangular cross-section extends upward from the support rod 11. A sliding hole 31 with a rectangular cross-section is opened upward along the sliding column 3 from the bottom side of the piston head 2, and the two outer sides of the guiding vertical rod 12 are respectively in sliding contact with the two inner sides of the sliding hole 31.

[0029] By setting the guiding vertical rod, the moving direction of the piston head 2 can be further guided, restricting the piston head 2 from rotating or laterally shifting during the up and down movement. The lateral force received by the piston head 2 is shared by the guiding vertical rod 12, avoiding direct friction between the piston head 2 and the inner wall of the vertical cylinder 1. With this structure, the piston head 2 always moves vertically along the axis of the vertical cylinder 1, avoiding gaps between the piston head 2 and the cylinder wall caused by skewing, preventing air leakage and affecting the rescue effect. During the rapid pulling and pushing operation, the guiding structure maintains the stability of the piston movement, ensuring the accuracy of air flow control, and improving the fault tolerance rate of first aid. When non-professionals perform the rescue, even if the force application direction of the push-pull handle 4 is slightly inclined, the guiding vertical rod 12 can still forcibly correct the piston path, reducing the risk of operation errors. The guiding structure makes the piston movement smoother, allowing the operator to fully convert the force into effective air pressure, avoiding ineffective energy consumption. The stable piston stroke ensures that the air flow intensity is consistent for each aspiration or pressurization, improving the success rate of foreign body removal or breathing assistance.

[0030] In a further solution, as Figure 5 、 Figure 6 and Figure 7As shown, a rotating square block 13 is rotatably provided at the top end of the guiding vertical rod 12. At the middle position on the side of the guiding vertical rod 12 that is not in sliding fit with the sliding hole 31, a retaining step 121 is provided outward. A plurality of support springs 21 are arranged around the sliding column 3 at the top end of the piston head 2. The top ends of the plurality of support springs 21 are simultaneously connected to a sliding ring 22. When the piston head 2 is pulled upward to the limit distance, the height of the bottom end of the piston head 2 exceeds the height of the bottom end of the rotating square block 13. The piston head 2 is rotated 180°, so that the guiding vertical rod 12 slides into the sliding hole 31 again, and the retaining step 121 is blocked on the bottom side of the piston head 2.

[0031] In this structure, after the piston head 2 is pulled upward to the limit, the 180° rotation of the piston head 2 can be realized. After rotation, the change of the blocking object at the bottom end of the piston head 2 is realized. When the retaining step 121 blocks the piston head 2, the moving space of the piston head 2 is limited, and the drawing stroke is reduced, so that the air pressure for each extraction and the air pressure for assisted breathing can be reduced to adapt to different first-aid recipients. In the initial state, the retaining step 121 does not contact the piston head 2, and the piston head 2 can move up and down throughout the whole process, with the maximum drawing stroke, generating a higher negative pressure / positive pressure. After the piston head 2 rotates 180°, the retaining step 121 abuts against its bottom, restricting the downward pressing distance of the piston head 2 and shortening the stroke, reducing the air flow pressure intensity. This setting can be selected according to different first-aid recipients, such as between adults, children, and the elderly, and different first-aid settings can be correspondingly selected to avoid excessive or too small air pressure during first aid, which affects the first-aid effect. This device also adopts an elastic blocking structure, and the piston head 2 can only be rotated by pulling upward to the limit, avoiding the switching between modes during the first-aid process.

[0032] In a further solution, as Figure 1 shown, an adjusting cylinder 14 is threadedly connected to the outer side of the bottom end of the vertical cylinder 1. The adjusting cylinder 14 contacts the ground. By rotating the adjusting cylinder 14, the height of the vertical cylinder 1 from the ground is adjusted.

[0033] In this structure, external threads are provided on the outer side of the bottom end of the vertical cylinder 1, and internal threads are matched on the inner side of the adjusting cylinder 14. The two realize the lifting of the vertical cylinder 1 through rotation, so that the face mask 7 adapts to the facial positions of different patients. Lowering the height of the vertical cylinder 1 can make the face mask 7 fit the smaller face of a child, and raising it matches that of an adult. Through fine adjustment, the dynamic fit between the face mask 7 and the patient's face is realized to ensure airtightness.

[0034] In a further solution, as Figure 2 shown, a pressing plate 141 that is convenient for single-hand pressing is provided on the outer side of the bottom end of the adjusting cylinder 14, and the area is larger than the diameter of the adjusting cylinder 14, which is convenient for single-hand fixing of the vertical cylinder 1 during rescue.

[0035] In a further solution, as Figure 2As shown, the face mask 7 is threadedly connected to the end cylinder 6, and both ends of the trachea 5 are threadedly connected to the end cylinder 6 and the vertical cylinder 1 respectively. The face mask 7 can be quickly disassembled for cleaning or replacement, avoiding the risk of cross-infection caused by foreign body residues; when the trachea 5 is blocked or damaged, only need to unscrew and replace it, without discarding the entire device, reducing the use cost.

[0036] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. An anti-asphyxia device for removing foreign object blockage in the airway, characterized in that: It includes a vertical cylinder standing on the ground, with the opening of the cylinder facing downwards. A piston head is slidably and sealingly arranged inside the cylinder. The top of the piston head is connected to a sliding column, and the sliding column passes through the top end of the cylinder and is connected with a handle. A trachea extends from the side of the top end of the cylinder, and the end of the trachea is provided with an end cylinder. The lower side of the end cylinder is connected with a face mask with an opening facing downwards. An air hole is opened on the upper side of the end cylinder. It also includes two first one-way air valves and a second one-way air valve. The first one-way air valve is located at the air hole to restrict the air flow from flowing from the end cylinder to the outside, and the second one-way air valve is located at the connection between the end cylinder and the face mask to restrict the air flow from flowing from the face mask towards the end cylinder.

2. The anti-asphyxia device for removing foreign body blockage of the airway according to claim 1, characterized in that: The end cylinder is horizontally arranged. An inner cylinder is rotatably and sealingly arranged coaxially inside the end cylinder. The inner cylinder exposes from the end of the end cylinder. Through holes communicating with the air hole and the face mask are respectively opened on the upper and lower sides of the inner cylinder. The first one-way air valve and the second one-way air valve are respectively located at the positions of the two through holes. Rotate the inner cylinder to exchange the positions of the first one-way air valve and the second one-way air valve, so that this device is used for inhalation assistance.

3. The anti-asphyxia device for removing foreign body blockage of the airway according to claim 2, wherein: A support rod extends inwards from the lower end of the cylinder. The support rod extends upwards to be provided with a guiding vertical rod with a rectangular cross-section. A sliding hole with a rectangular cross-section is opened upwards along the sliding column from the bottom side of the piston head. The two inner sides of the sliding hole are respectively slidably attached to the two outer sides of the guiding vertical rod.

4. The anti-asphyxia device for removing foreign body blockage of the airway according to claim 3, characterized in that: A rotating square block is rotatably arranged at the top end of the guiding vertical rod. A step is arranged outwards at the middle position on the side of the guiding vertical rod that is not slidably attached to the sliding hole. A plurality of support springs are arranged around the sliding column at the top end of the piston head. The top ends of the plurality of support springs are simultaneously connected to a sliding ring. When the piston head is pulled upwards to the limit distance, the height of the bottom end of the piston head exceeds the height of the bottom end of the rotating square block. Rotate the piston head by 180°, so that the guiding vertical rod slides into the sliding hole again, and the step blocks the bottom side of the piston head.

5. The anti-asphyxia device for removing foreign body blockage from the airway according to claim 4, characterized in that: A regulating cylinder is threadedly connected to the outer side of the bottom end of the cylinder. The regulating cylinder contacts the ground. Rotate the regulating cylinder to adjust the height of the cylinder from the ground.

6. The anti-asphyxia device for removing foreign body blockage from the airway according to claim 5, wherein: A pressing plate convenient for being pressed by one hand is arranged on the outer side of the bottom end of the regulating cylinder.

7. The anti-asphyxia device for removing foreign body blockage from the airway according to claim 6, wherein: The face mask is threadedly connected to the end cylinder, and the two ends of the trachea are respectively threadedly connected to the end cylinder and the cylinder.

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