Nasal cavity negative pressure suction device for children

Abstract

The utility model relates to a child nasal cavity negative pressure suction device which comprises a piston cylinder, a piston plate is connected in the piston cylinder in a sliding mode, a piston rod is fixedly connected outside the piston plate, one end of the piston cylinder is further fixedly connected with a first pipeline, and one end of the first pipeline is connected with a storage cylinder. The external of the storage cylinder is connected with a second pipeline, one end of the second pipeline is fixedly connected with a nasal tube, a first one-way valve and a second one-way valve are fixedly connected in the first pipeline, and a filtering assembly for filtering liquid is detachably arranged between the first pipeline and the storage cylinder. According to the nasal delivery device, negative pressure can be generated by the second pipeline, so that snot in the nasal cavity can be absorbed into the storage barrel, in addition, the snot can be prevented from entering the first pipeline and the piston barrel through the arrangement of the filtering assembly, sanitation and cleanness of the piston barrel are guaranteed, the piston barrel can be recycled, and resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of negative pressure suction equipment, in particular to a negative pressure suction device for children's nasal cavity. Background Art

[0002] In the treatment of pediatric patients, negative pressure suction technology is usually used to suction the sputum and tissue fluid in the patient's nasal cavity to prevent the sputum and tissue fluid from blocking the patient's respiratory tract and affecting the patient's normal breathing.

[0003] After searching, a Chinese patent with publication number: CN 217391243 U discloses a negative pressure drainage device for the nasal cavity, which is characterized by comprising: a liquid collecting tube, a first drainage tube, a first stop valve, a balloon, a second stop valve, a second drainage tube, a drainage bag and a fixing patch.

[0004] When this patent is actually used, there are the following defects:

[0005] In this patent, when the snot is sucked out through the collecting tube, the snot will enter the balloon, and the balloon needs to be pressed repeatedly, so the snot will stick to the balloon, and the balloon cannot be effectively cleaned, thereby failing to ensure the hygiene of the balloon, and failing to recycle the negative pressure component such as the balloon, so resources cannot be saved. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a negative pressure suction device for the nasal cavity of children.

[0007] The technical solution adopted by the utility model is: a negative pressure suction device for the nasal cavity of children, comprising a piston cylinder, a piston plate slidably connected inside the piston cylinder, a piston rod fixedly connected to the outside of the piston plate, one end of the piston cylinder is also fixedly connected to a first pipeline, one end of the first pipeline is connected to a storage cylinder, the outside of the storage cylinder is connected to a second pipeline, one end of the second pipeline is fixedly connected to a nasal tube, a first one-way valve and a second one-way valve are fixedly connected in the first pipeline, and a filtration component for filtering liquid is detachably provided between the first pipeline and the storage cylinder.

[0008] In one embodiment, the filtration assembly includes a filter cartridge, convex tubes arranged on both sides of the filter cartridge, and a filter membrane fixedly connected to the filter cartridge. The outside of the storage cartridge is fixedly connected with a plug, and the two convex tubes are respectively plugged into the plug and the first pipe.

[0009] In one embodiment, a top cover is threadedly connected to the top of the storage cylinder, the second pipe is fixedly connected to the top cover, and a bottom cover is threadedly connected to the bottom of the storage cylinder.

[0010] In one embodiment, a conical bucket is fixedly connected to the bottom of the top cover, and the bottom of the conical bucket extends to below the insertion tube.

[0011] In one embodiment, the annular side surface of the nasal tube is provided with a plurality of through holes, and the diameter of the through holes is 1 mm to 5 mm.

[0012] In one embodiment, an annular rubber sealing ring is connected to the inner wall of the convex tube.

[0013] In one embodiment, a handle is fixedly connected to the outside of the piston rod, and an arc-shaped grip plate is fixedly connected to the outside of the piston cylinder.

[0014] The beneficial effect of the utility model is that compared with the prior art, in the utility model, by reciprocatingly pushing the piston rod, negative pressure can be generated in the second pipe, so that the snot in the nasal cavity can be absorbed into the storage cylinder, and in addition, by setting the filtering component, the snot can be blocked from entering the first pipe and the piston cylinder, thereby ensuring the hygiene and cleanliness of the piston cylinder, and the piston cylinder can also be recycled, thereby saving resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the piston cylinder in the utility model;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the storage cylinder in the utility model;

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the filter cartridge in the utility model.

[0020] The markings in the figure are: 1. piston cylinder; 2. piston rod; 3. first pipeline; 4. first one-way valve; 5. second one-way valve; 6. filter cartridge; 7. cannula; 8. storage cylinder; 9. second pipeline; 10. nasal tube; 11. top cover; 12. conical bucket; 13. bottom cover; 14. convex tube; 15. filter membrane; 16. piston plate. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The following is combined with Figure 1-5 The utility model is further described.

[0024] In order to solve the problems existing in the background technology, the present application proposes the following technical solutions: a negative pressure suction device for the nasal cavity of children, comprising a piston cylinder 1, a piston plate 16 is slidably connected inside the piston cylinder 1, a piston rod 2 is fixedly connected to the outside of the piston plate 16, one end of the piston cylinder 1 is also fixedly connected to a first pipe 3, one end of the first pipe 3 is connected to a storage cylinder 8, the outside of the storage cylinder 8 is connected to a second pipe 9, and one end of the second pipe 9 is fixedly connected to a nasal tube 10. By reciprocatingly pushing and pulling the piston rod 2, the piston plate 16 is driven to move in the piston cylinder 1, thereby generating negative pressure to extract the mucus in the nasal cavity.

[0025] In order to prevent mucus from contacting the cannula 7, a conical bucket 12 is fixedly connected to the bottom of the top cover 11, and the bottom of the conical bucket 12 extends to the bottom of the cannula 7. In addition, in order to increase the absorption effect, a plurality of through holes are provided on the annular side of the nasal tube 10, and the diameter of the through holes is one millimeter to five millimeters.

[0026] In order to facilitate pulling and drawing, a handle is fixedly connected to the outside of the piston rod 2, and an arc-shaped grip plate is fixedly connected to the outside of the piston cylinder 1.

[0027] In a further design, in order to ensure the generation of a negative pressure effect, a first one-way valve 4 and a second one-way valve 5 are fixedly connected in the first pipeline 3. The first one-way valve 4 is fixedly connected to the outside of the first pipeline 3 and communicates with the inside of the first pipeline 3. The second one-way valve 5 is fixedly connected to the inner cavity of the first pipeline 3. The first one-way valve 4 can only output the gas in the first pipeline 3 to the outside. When the piston rod 2 is pulled out, the second one-way valve 5 can only output the gas in the storage cylinder 8 and the second pipeline 9 to the first pipeline 3.

[0028] In order to ensure hygiene and safety, a detachable filtering component for filtering the liquid is provided between the first pipe 3 and the storage cylinder 8 .

[0029] Specifically, the filtering assembly includes a filter cartridge 6, convex tubes 14 arranged on both sides of the filter cartridge 6, and a filter membrane 15 fixedly connected to the filter cartridge 6. The outside of the storage cartridge 8 is fixedly connected with a plug tube 7. The two convex tubes 14 are respectively plugged into the plug tube 7 and the first pipe 3. The filter membrane 15 is a PTFE membrane that can only filter air but not liquid, thereby preventing mucus from entering the first pipe 3. In addition, in order to increase the sealing performance, an annular rubber sealing ring is connected to the inner wall of the convex tube 14.

[0030] In addition, the filter cartridge 6 may be provided with a disposable component, which may be replaced.

[0031] In a further configuration, in order to facilitate cleaning and disinfection of the storage cylinder 8, a top cover 11 is threadedly connected to the top of the storage cylinder 8, the second pipe 9 is fixedly connected to the top cover 11, and a bottom cover 13 is threadedly connected to the bottom of the storage cylinder 8, so that the top cover 11 and the bottom cover 13 can be easily removed, and then the storage cylinder 8 can be cleaned and disinfected.

[0032] In order for those skilled in the art to fully understand the technical solution, this embodiment is summarized as follows:

[0033] When in use, the nasal tube 10 is inserted into the nasal cavity of the child, and then the piston rod 2 is reciprocated. When the piston rod 2 is withdrawn, the first one-way valve 4 and the second one-way valve 5 cooperate with each other to generate negative pressure in the storage cylinder 8, the second pipeline 9 and the nasal tube 10, so that the nasal mucus and dirt in the nasal cavity can be extracted and then transported to the storage cylinder 8 for storage. When the piston plate 16 is pushed into the piston cylinder 1, the air in the piston cylinder 1 can be discharged through the first one-way valve 4;

[0034] The setting of the conical bucket 12 can prevent the nasal mucus from contacting the cannula 7 when absorbing the nasal mucus dirt. The setting of the filter membrane 15 can filter out the incoming liquid to prevent the liquid from entering the first pipe 3 and contaminating the first pipe 3 and the piston cylinder 1.

[0035] After completion, it is only necessary to replace the filter cartridge 6, then remove the top cover 11 and the bottom cover 13, and clean the storage cartridge 8.

[0036] In summary, in this embodiment, by replacing the filter cartridge 6, hygiene can be further guaranteed to prevent mucus from entering the piston cylinder 1, and by the detachable arrangement of the external top cover 11 and the bottom cover 13 of the storage cylinder 8, it is also convenient to clean and disinfect the storage cylinder 8 comprehensively.

[0037] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0038] Although the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A negative pressure suction device for the nasal cavity of children, comprising a piston cylinder (1), a piston plate (16) slidably connected inside the piston cylinder (1), a piston rod (2) fixedly connected to the outside of the piston plate (16), one end of the piston cylinder (1) is also fixedly connected to a first pipe (3), one end of the first pipe (3) is connected to a storage cylinder (8), the outside of the storage cylinder (8) is connected to a second pipe (9), one end of the second pipe (9) is fixedly connected to a nasal tube (10), characterized in that: A first one-way valve (4) and a second one-way valve (5) are fixedly connected in the first pipeline (3), and a filter assembly for filtering liquid is detachably provided between the first pipeline (3) and the storage cylinder (8).

2. A negative pressure suction device for children's nasal cavity according to claim 1, characterized in that: The filtering assembly comprises a filter cartridge (6), convex tubes (14) arranged on both sides of the filter cartridge (6), and a filter membrane (15) fixedly connected to the filter cartridge (6); the outside of the storage cartridge (8) is fixedly connected to a plug tube (7); the two convex tubes (14) are respectively plugged into the plug tube (7) and the first pipeline (3).

3. A negative pressure suction device for children's nasal cavity according to claim 2, characterized in that: The top of the storage cylinder (8) is threadedly connected to a top cover (11), the second pipe (9) is fixedly connected to the top cover (11), and the bottom of the storage cylinder (8) is threadedly connected to a bottom cover (13).

4. A negative pressure suction device for children's nasal cavity according to claim 3, characterized in that: The bottom of the top cover (11) is fixedly connected with a conical bucket (12), and the bottom of the conical bucket (12) extends to the bottom of the insertion tube (7).

5. A negative pressure suction device for children's nasal cavity according to claim 4, characterized in that: The annular side surface of the nasal tube (10) is provided with a plurality of groups of through holes, and the diameter of the through holes is between 1 millimeter and 5 millimeters.

6. A negative pressure suction device for children's nasal cavity according to claim 5, characterized in that: The inner wall of the convex tube (14) is connected with an annular rubber sealing ring.

7. A negative pressure suction device for children's nasal cavity according to claim 6, characterized in that: The outside of the piston rod (2) is fixedly connected to a handle, and the outside of the piston cylinder (1) is fixedly connected to an arc-shaped grip plate.

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