Portable aspiration suffocation first-aid device

Abstract

The invention discloses a portable aspiration suffocation first-aid device, belongs to the technical field of portable medical equipment, and is used for solving the problem that obstructions in throats of aspiration suffocation patients are difficult to quickly remove. The device is mainly composed of a mask, a cylinder cover and a middle cylinder, and five air channels are formed around the axis of the device. The cylinder cover is fixed at the front end of the middle cylinder and communicated with the mask and the air channel. A baffle ring, a radial beam, an offset pin, a limiting spring, a connecting rod, a clamping head, a piston seat and a force application spring are arranged in the air channel, an outer ring is rotationally arranged outside the middle cylinder in a surrounding mode, and a protrusion is arranged on an annular groove in the inner side of the outer ring. The device is compact in structure, easy and convenient to operate and free of charging, compared with existing electric and manual suction devices, labor is saved, response is rapid, foreign matter suction actions can be conducted many times, the first-aid success rate can be effectively increased, and the device has great application value in the first-aid field.

Description

Technical Field

[0001] The present invention belongs to the technical field of portable medical equipment, and in particular relates to a portable aspiration and suffocation first aid device. Background Art

[0002] Aspiration and choking are common critical situations in clinical emergency treatment. When a patient's airway is blocked by foreign objects, resulting in ventilation problems, if the blockage in the throat is not cleared in time, it may cause hypoxic brain damage or even endanger life. Therefore, portable aspiration and choking first aid devices play an important role in on-site first aid. Their core function is to quickly establish an air pressure difference and absorb the air in the mask, thereby using the negative pressure principle to clear the blockage in the patient's airway. Such devices must meet requirements such as portability, ease of use, rapid response, and no reliance on external energy, so that they can be quickly operated by non-professionals in emergency scenarios to gain golden time for saving lives.

[0003] At present, the aspiration emergency devices on the market are mainly divided into two categories: electric and manual. Electric devices rely on batteries or external power supplies to drive the negative pressure generation structure. Although they can provide stable suction, they have problems such as the need to charge in advance, limited battery life, and large device size. They may not be able to be used normally outdoors or in power outages. Traditional manual suction devices mostly achieve negative pressure by manually pressing or pulling the piston. During operation, a large force needs to be continuously applied, which can easily cause user fatigue. In addition, the continuity and stability of the suction force are insufficient, and the response speed is slow during multiple operations. The first aid effect may be affected if the blockage is not cleared in time. In addition, the existing devices are usually simple in structure, making it difficult to quickly achieve multiple continuous foreign body suction actions, and the first aid efficiency needs to be improved. Summary of the Invention

[0004] In view of this, the object of the present invention is to provide a portable aspiration and suffocation first aid device that does not rely on electricity, is labor-saving to operate, responds quickly and can efficiently achieve multiple negative pressure suctions.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] The present invention includes a face mask, a cylinder cover, and a middle cylinder. The middle cylinder is of a cylindrical structure, and a number of air channels are penetratingly opened around the axis of the middle cylinder. The cylinder cover is fixedly connected to the front end of the middle cylinder. The interior of the cylinder cover is hollow and communicates with the air channels. The face mask communicates with the cylinder cover. A retaining ring is provided at one end of the air channel facing the cylinder cover. Inside the retaining ring, a radial beam extending along the radius of the middle cylinder is provided. A counterweight is slidably arranged inside the radial beam. A limiting spring is supported between the counterweight and the interior of the radial beam. The end of the counterweight protrudes from a part of the side surface of the middle cylinder. A connecting rod is extended at the bottom end of the counterweight. A clamping head is provided at the end of the connecting rod. A piston seat is slidably arranged inside the air channel. A chute is opened at the top end of the piston seat. Blocks are provided on both sides of the chute. The two ends of the clamping head are blocked under the blocks. A biasing spring is supported in a compressed manner between the piston seat and the retaining ring. An outer ring is rotatably arranged around the middle cylinder. A ring groove is opened on the inner side of the outer ring. A protrusion is provided on the ring groove. By rotating the outer ring to press one end of the counterweight with the protrusion, the counterweight drives the clamping head to move along the chute and away from the block. The piston seat loses the fixation of the block and quickly moves along the air channel under the pressing of the biasing spring.

[0007] Further, it further includes a cylinder base. A guiding hole is inwardly opened in the middle of the tail end of the middle cylinder. A sliding column is provided in the middle of the cylinder base. The sliding column is slidably arranged along the guiding hole. A number of abutting rods are provided around the sliding column on the cylinder base. The abutting rods respectively abut against the tail end of the piston seat. The blocks are slidably arranged transversely on both sides of the chute. A pressing spring is supported between the blocks and the interior of the piston seat. The blocks are chamfered in the direction towards the clamping head. By applying pressure to the middle cylinder with the cylinder base, the abutting rods abut against the piston seat to move towards the clamping head and clamp the clamping head under the blocks.

[0008] Further, an oil groove is provided around the middle of the piston seat. An oil cavity is opened in the middle cylinder. The oil cavity is provided with a number of oil channels communicating with the air channels. When the piston seat is fixed by the block, the oil channels communicate with the oil groove. The oil cavity communicates with the bottom of the guiding hole through a small hole. An oil injection channel is opened along the sliding column at the bottom end of the cylinder base. When the abutting rods abut against the head and tail ends of the fixed piston seat, the oil injection channel communicates with the oil cavity.

[0009] Further, two rows of balls are provided around the outer side of the end of the sliding column. The balls abut against the inner side of the guiding hole.

[0010] Further, a magnet is also provided around the inner side of the bottom end of the guiding hole. By attracting the balls with the magnet, the cylinder base is temporarily fixed at the end of the middle cylinder.

[0011] Further, the end of the counterweight is of a semi-circular structure, and the protrusion is of an arc convex structure.

[0012] Furthermore, the cross-section of the airway is elliptical.

[0013] The beneficial effects of the present invention are as follows:

[0014] In the present invention, the structure is compact, and five airways are provided. In each airway, a piston seat that moves rapidly along the airway is arranged. During the rapid movement of the piston seat in one airway, the airway space increases, and air is sucked into the face mask to suck the blockage in the throat of the patient with aspiration asphyxia. This first aid device is easy to operate. When in need of use, cover the face mask on the patient's nose and mouth, and manually rotate the outer ring. During the rotation of the protrusion in the outer ring, one of the offset ends is pressed. During the pressing of the offset, it moves radially along the airway and drives the connecting rod and the chuck at the end of the connecting rod to move. The chuck moves along the sliding groove and away from the block that blocks the chuck. The piston seat loses the fixation of the chuck and quickly pops out under the action of the biasing spring, generating a pressure change to achieve one inhalation action inside the face mask. When the first attempt to suck foreign objects fails, continue to rotate the outer ring to achieve multiple attempts to suck foreign objects, improving the first aid success rate of this device. Compared with the electric device, this device can be used without charging and can perform rapid multiple foreign object suction actions. Compared with the existing manual suction device, this device is labor-saving and has a rapid response.

[0015] Other advantages, objectives, and features of the present invention will be described in the following specification, and to some extent, will be obvious to those skilled in the art, or those skilled in the art can obtain teachings from the practice of the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To make the objectives, technical solutions, and beneficial effects of the present invention clearer, the present invention provides the following drawings for description:

[0017] Figure 1 Schematic diagram of the overall device according to an embodiment of the present invention;

[0018] Figure 2 Schematic diagram of the cylinder structure according to an embodiment of the present invention;

[0019] Figure 3 Schematic diagram of the cylinder seat structure according to an embodiment of the present invention;

[0020] Figure 4 Front view of the device according to an embodiment of the present invention;

[0021] Figure 5 For Figure 4 Cross-sectional view taken along line A-A of

[0022] Figure 6 For Figure 5 Cross-sectional view of the chuck in

[0023] Figure 7 For Figure 4 the sectional view taken along line B-B;

[0024] The reference numerals in the drawings are as follows: 1, face mask; 2, cylinder cover; 3, middle cylinder; 31, air passage; 32, retaining ring; 321, radial beam; 33, counterweight; 331, limiting spring; 34, connecting rod; 341, chuck; 35, outer ring; 351, annular groove; 352, protrusion; 36, guiding hole; 361, magnet; 37, oil cavity; 371, oil passage; 4, piston seat; 41, sliding groove; 42, stop block; 43, pressing spring; 44, oil groove; 5, biasing spring; 6, cylinder base; 61, sliding column; 62, abutting rod; 63, oil injection passage; 64, ball. Detailed implementation manners

[0025] The present invention discloses a portable first-aid device for accidental aspiration asphyxia, as Figure 1 and Figure 2 shown, which includes a face mask 1, a cylinder cover 2 and a middle cylinder 3. The middle cylinder 3 is of a cylindrical structure, and five air passages 31 are axially penetrated around the middle cylinder 3. The cylinder cover 2 is fixedly connected to the front end of the middle cylinder 3. The inside of the cylinder cover 2 is hollow and communicates with the air passages 31. The face mask 1 communicates with the cylinder cover 2, as Figure 4 , Figure 5 , Figure 6 and Figure 7 shown. A retaining ring 32 is provided at one end of the air passage 31 facing the cylinder cover 2. A radial beam 321 extending along the radius direction of the middle cylinder 3 is provided inside the retaining ring 32. A counterweight 33 is slidably provided inside the radial beam 321. A limiting spring 331 is supported between the counterweight 33 and the inside of the radial beam 321. One end of the counterweight 33 protrudes from the side part of the middle cylinder 3. A connecting rod 34 is extended at the bottom end of the counterweight 33. A chuck 341 is provided at the end of the connecting rod 34. A piston seat 4 is slidably provided inside the air passage 31. A sliding groove 41 is opened at the top end of the piston seat 4. Stop blocks 42 are provided on both sides of the sliding groove 41. Both ends of the chuck 341 are blocked under the stop blocks 42. A biasing spring 5 is compressed and supported between the piston seat 4 and the retaining ring 32. An outer ring 35 is rotatably provided around the middle cylinder 3. An annular groove 351 is opened inside the outer ring 35. A protrusion 352 is provided on the annular groove 351. Rotating the outer ring 35 makes the protrusion 352 press one end of the counterweight 33. The counterweight 33 drives the chuck 341 to move along the sliding groove 41 and away from the stop block 42. The piston seat 4 loses the fixation of the stop block 42 and quickly moves along the air passage 31 under the pressing of the biasing spring 5.

[0026] This first-aid device has a compact structure and is provided with five airways 31. A piston seat 4 that moves rapidly along the airway 31 is arranged in each airway 31. During the rapid movement of the piston seat 4 in one airway 31, the space of the airway 31 increases, sucking air into the face mask 1 to suck out the blockage in the larynx of a patient with aspiration asphyxia. This first-aid device is easy to operate. When in need of use, cover the face mask 1 on the patient's nose and mouth, and manually rotate the outer ring 35. During the rotation of the protrusion 352 in the outer ring 35, it presses one end of the offset 33. During the pressing process of the offset 33, it moves radially along the airway 31 and drives the connecting rod 34 and the chuck 341 at the end of the connecting rod 34 to move. The chuck 341 moves along the chute 41 and moves away from the block 42 that blocks the chuck 341. The piston seat 4 loses the fixation of the chuck 341 and quickly pops out under the action of the biasing spring 5, generating a pressure change to achieve one inhalation action inside the face mask 1. When the first foreign object suction fails, continue to rotate the outer ring 35 to achieve multiple foreign object suctions, improving the first-aid success efficiency of this device. Compared with the electric device, this device can be used without charging and can perform rapid multiple foreign object suction actions. Compared with the existing manual suction device, this device is labor-saving and has a rapid response.

[0027] In a further solution, as Figure 3 , Figure 5 and Figure 6 shown, it further includes a cylinder base 6. A guide hole 36 is inwardly opened in the middle of the tail end of the middle cylinder 3. A sliding column 61 is arranged in the middle of the cylinder base 6. The sliding column 61 is slidably arranged along the guide hole 36. Five abutting rods 62 are arranged around the sliding column 61 on the cylinder base 6. The abutting rods 62 respectively abut against the tail end of the piston seat 4. The block 42 is transversely slidably arranged on both sides of the chute 41. An abutting spring 43 is internally supported between the block 42 and the piston seat 4. The block 42 is chamfered towards the direction of the chuck 341. By pressing the cylinder base 6 against the middle cylinder 3, the abutting rods 62 abut against the piston seat 4 to move towards the chuck 341, and the chuck 341 is clamped under the block 42.

[0028] In this structure, a cylinder base 6 is provided. The cylinder base 6 realizes linear movement guidance through the sliding posts 61 and the guiding holes 36 of the middle cylinder 3. A resisting rod 62 is provided on the cylinder base 6. When the cylinder base 6 moves towards the middle seat, it can compress the force-applying spring 5 of the released piston seat 4 and move it back. The piston seat 4 moves towards the chuck 341, and the chuck 341 can push open the elastic stop block 42 and make the stop block 42 latch onto the chuck 341, enabling the five piston seats 4 to return to the suction preparation state again. By providing a back-pressure base, this first-aid device is upgraded to a reusable structure. And after five foreign object extractions, if the foreign object has not been removed yet, the first-aid device can be quickly reset by pressing down the base to perform another foreign object extraction operation. When the piston seat 4 does not pop out, the abutment seat retracts to the end of the middle cylinder 3, facilitating the carrying of the entire device.

[0029] In a further solution, as Figure 3 and Figure 5 shown, an oil groove 44 is provided around the middle of the piston seat 4. An oil cavity 37 is opened in the middle cylinder 3. The oil cavity 37 is provided with five oil channels 371 communicating with the air passage 31. When the piston seat 4 is fixed by the stop block 42, the oil channels 371 communicate with the oil groove 44. The oil cavity 37 and the bottom of the guiding hole 36 are communicated through small holes. An oil injection channel 63 is opened along the sliding post 61 at the bottom end of the cylinder base 6. When the resisting rod 62 abuts against the head and tail ends of the fixed piston, the oil injection channel 63 communicates with the oil cavity 37.

[0030] In this structure, by providing an oil groove 44 on the outer side of the middle section of the piston seat 4, and by providing an oil cavity 37, oil channels 371 in the middle cylinder 3 and an oil injection channel 63 in the sliding post 61, when the piston seat 4 is in the retracted state, high-viscosity oil can be added into the oil injection channel 63. The oil seeps into the oil groove 44 through the oil cavity 37 and the oil channels 371, so that the oil is distributed around the piston. The high-viscosity oil can improve the quick sliding ability of the piston seat 4, and can also improve the sealing effect of the piston seat 4, enabling the piston seat 4 to generate greater suction force during movement, improving the foreign object suction effect. And this structure can repeatedly add oil to ensure that the best use effect is still maintained when using this device subsequently.

[0031] In a further solution, as Figure 3 and Figure 4 shown, two rows of ball bearings 64 are provided around the outer side of the end of the sliding post 61, and the ball bearings 64 abut against the inner side of the guiding hole 36.

[0032] In this structure, the ball bearings 64 can improve the sliding ability of the sliding post 61, and there is a gap between the sliding post 61 and the guiding hole 36; reducing the frictional stress and air pressure suction force received by the sliding post 61 during movement, ensuring the guiding effect on the base and avoiding the consumption of the stress of the force-applying spring 5.

[0033] In a further embodiment, as Figure 5 shown, a magnet 361 is further provided inside the bottom end of the guiding hole 36. The magnet 361 attracts the ball 64, so that the cylinder base 6 is temporarily fixed at the end of the middle cylinder 3.

[0034] With this structure, the base is temporarily fixed at the end of the middle cylinder 3, preventing the base from sliding out and facilitating the carrying of the entire device.

[0035] In a further embodiment, as Figure 7 shown, the end of the counterweight 33 is a semi-circular structure, and the protrusion 352 is an arc-shaped convex structure.

[0036] During the rotation of the outer ring �5, the protrusion 352 can smoothly press down the counterweight 33 to achieve the retraction of the counterweight 33.

[0037] In a further embodiment, as Figure 7 shown, the cross-section of the air passage 31 is elliptical, and the cross-section of the piston seat 4 is matched with the air passage 31.

[0038] This structure can ensure the sealing effect of the piston seat 4 and prevent the misalignment of the chuck 341 and the sliding groove 41 caused by the rotation of the piston seat 4 in the air passage 31.

[0039] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. 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. A portable first aid device for preventing aspiration asphyxia, characterized in that: It includes a face mask (1), a cylinder cover (2) and a middle cylinder (3). The middle cylinder (3) is of a cylindrical structure, and a number of air passages (31) are axially penetrated around the middle cylinder (3). The cylinder cover (2) is fixedly connected to the front end of the middle cylinder (3). The interior of the cylinder cover (2) is hollow and communicates with the air passages (31). The face mask (1) communicates with the cylinder cover (2). A retaining ring (32) is provided at one end of the air passage (31) facing the cylinder cover (2). A radial beam (321) extending along the radius of the middle cylinder (3) is provided inside the retaining ring (32). A counterweight (33) is slidably arranged inside the radial beam (321). A limiting spring (331) is supported between the counterweight (33) and the interior of the radial beam (321). One end of the counterweight (33) protrudes from the side part of the middle cylinder (3). A connecting rod (34) is extended at the bottom end of the counterweight (33). A clamping head (341) is provided at the end of the connecting rod (34). A piston seat (4) is slidably arranged inside the air passage (31). A chute (41) is opened at the top end of the piston seat (4). Stopper blocks (42) are provided on both sides of the chute (41). Both ends of the clamping head (341) are blocked under the stopper blocks (42). A biasing spring (5) is supported in compression between the piston seat (4) and the retaining ring (32). An outer ring (35) is rotatably arranged around the middle cylinder (3). A ring groove (351) is opened on the inner side of the outer ring (35). A protrusion (352) is provided on the ring groove (351). Rotating the outer ring (35) causes the protrusion (352) to press one end of the counterweight (33). The counterweight (33) drives the clamping head (341) to move along the chute (41) and away from the stopper block (42). The piston seat (4) loses the fixation of the stopper block (42) and quickly moves along the air passage (31) under the pressing of the biasing spring (5).

2. The portable first aid device for preventing aspiration and asphyxia according to claim 1, wherein: It further includes a cylinder base (6). A guiding hole (36) is inwardly opened in the middle of the tail end of the middle cylinder (3). A sliding column (61) is provided in the middle of the cylinder base (6). The sliding column (61) is slidably arranged along the guiding hole (36). A number of abutting rods (62) are provided around the sliding column (61) on the cylinder base (6). The abutting rods (62) respectively abut against the tail end of the piston seat (4). The stopper blocks (42) are slidably arranged horizontally on both sides of the chute (41). A pressing spring (43) is supported between the stopper blocks (42) and the interior of the piston seat (4). The stopper blocks (42) are chamfered in the direction facing the clamping head (341). By applying pressure to the middle cylinder (3) with the cylinder base (6), the abutting rods (62) abut against the piston seat (4) to move towards the clamping head (341), and the clamping head (341) is snapped under the stopper blocks (42).

3. The portable first aid device for preventing aspiration asphyxia according to claim 2, characterized in that: An oil groove (44) is provided around the middle of the piston seat (4). An oil cavity (37) is formed in the middle cylinder (3). The oil cavity (37) is provided with a number of oil channels (371) communicating with the air channel (31). When the piston seat (4) is fixed by the stop block (42), the oil channels (371) communicate with the oil groove (44). The oil cavity (37) communicates with the bottom of the guide hole (36) through a small hole. An oil injection channel (63) is formed along the sliding column (61) at the bottom end of the cylinder base (6). When the abutting rod (62) abuts against the fixed end of the piston head, the oil injection channel (63) communicates with the oil cavity (37).

4. The portable first-aid device for preventing aspiration asphyxia according to claim 3, wherein: Two rows of ball bearings (64) are provided on the outer side of the end of the sliding column (61). The ball bearings (64) abut against the inner side of the guide hole (36).

5. The portable first aid device for accidental aspiration asphyxia according to claim 4, characterized in that: A magnet (361) is further provided on the inner side of the bottom end of the guide hole (36). The ball bearings (64) are attracted by the magnet (361) to temporarily fix the cylinder base (6) at the end of the middle cylinder (3).

6. The portable first aid device for accidental aspiration asphyxia according to claim 5, wherein: The end of the counterweight (33) is of a semi-circular structure, and the protrusion (352) is of an arc-shaped protruding structure.

7. The portable first aid device for preventing aspiration asphyxia according to claim 6, wherein: The cross-section of the air channel (31) is elliptical in shape.

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