Single-dose nasal spray device

Abstract

The utility model discloses a single-dose nasal spray device which comprises a spray head, a tube seat, a tube body, a rubber plug, a water core and a tube puncturing part. The nozzle comprises a head part and a tail part, and a finger supporting table is arranged between the head part and the tail part; a water core is arranged in the head of the nozzle, and a pipe piercing part is arranged in the water core; the head is provided with a nozzle for spraying liquid; a rubber plug is arranged below the tube puncturing part; the lower portion of the water core is connected with the pipe body, and the rubber plug is arranged in the pipe body. The rubber plug and the tube body are sealed to form a liquid cavity; a sharp part is arranged at the tail part of the tube puncturing part and is used for puncturing the rubber plug and the liquid cavity; a cavity is formed in the tail of the spray head, and an avoiding groove is formed in the side wall of the tail of the spray head and used for pressing the extrusion tube base; limiting is arranged between the tube base and the tube body, so that the tube base abuts against the tube body after being pressed, and the tube body drives the rubber plug to get close to the tube puncturing part.

Description

Technical Field

[0001] This utility model belongs to the field of pharmaceutical packaging technology, specifically relating to a single-dose nasal spray device. Background Technology

[0002] Currently, widely used spray products on the market, such as oral disinfectant sprays, nasal sprays, and skin sprays, mainly adopt a reusable structure, including a detachable pump body and a reusable medicine bottle. This type of structure has the following significant shortcomings in medical and public health scenarios:

[0003] Risks of reuse: The structure of traditional spray equipment allows for multiple uses, which poses a risk of cross-infection, especially in medical institutions or scenarios with multiple people in contact. Reuse can easily lead to contamination of the spray nozzle.

[0004] Complex structure, which is not conducive to cost control: The commonly used pump body is a multi-component combination structure, which requires multiple processes to assemble, and is not suitable for making it into a disposable low-cost product;

[0005] Unable to achieve complete sealing and preservation: In most existing products, the pump body and the medicine bottle are already connected before use, making it difficult to achieve true sealing and preservation before use, which affects the stability of the medicine.

[0006] Easily reusable illegally: Some spray structures can be recycled, modified and reused, posing safety hazards or the risk of counterfeit drugs circulating in the market;

[0007] Treatment or use is for a single purpose; multiple uses result in drug waste, difficulty in meeting sterility requirements, and the risk of expiration.

[0008] From the perspective of storage and use, there is a need for a drug delivery device that is compatible with single-use medical devices and is used for spraying or misting drug delivery.

[0009] In summary, the market urgently needs a spray pump system that is simple in structure, low in cost, sealed before use, tamper-proof, and has a destructive structure to meet the regulations and safety requirements for single-use medical applications in public health and healthcare. Utility Model Content

[0010] This application provides a single-dose nasal spray device, including a nozzle, a tube seat, a tube body, a rubber stopper, a water core, and a piercing tube section;

[0011] The nozzle consists of a head and a tail, with a finger support between the head and the tail.

[0012] The nozzle has a water core inside its head, and a piercing tube inside the water core; the head has a nozzle for spraying liquid.

[0013] A rubber stopper is installed below the piercing tube section;

[0014] The water core is connected to the lower part of the tube, and the rubber stopper is inserted into the tube; the rubber stopper and the tube are sealed to form a liquid chamber;

[0015] The tail end of the piercing tube is equipped with a sharp point for piercing the rubber stopper and penetrating the liquid cavity;

[0016] The nozzle has a cavity at the tail end, and a clearance groove is provided on the side wall of the nozzle tail end for pressing into the extrusion tube seat;

[0017] A limit is set between the tube seat and the tube body so that when the tube seat is pressed, it abuts against the tube body, and the tube body moves the rubber plug closer to the piercing tube section.

[0018] The technical solution provided in this application also has the following technical features:

[0019] Preferably, in one embodiment of this application, a sliding pair is formed between the pipe body and the inner wall of the nozzle head, and a sliding movement space is provided.

[0020] Preferably, in one embodiment of this application, a sliding pair is formed between the tube seat and the inner wall of the nozzle head, and a sliding movement space is provided.

[0021] Preferably, in one embodiment of this application, the length of the protruding section of the piercing tube extending out of the water core is greater than the length required to pierce the rubber stopper.

[0022] Preferably, in one embodiment of this application, the tube body moves the rubber stopper close to the piercing tube section, so that after the piercing tube section pierces the rubber stopper, the rubber stopper is pressed against by the water core, and the sharp part of the piercing tube section passively enters the liquid cavity of the tube body. The liquid in the liquid cavity is squeezed and enters the nozzle and the atomization channel of the water core through the pipe of the piercing tube section.

[0023] Preferably, in one embodiment of this application, the tail end of the tube is embedded in the tube seat, and the head end of the tube is provided with a protruding ring for abutting the tube seat, or the tube seat is provided with an abutting part for abutting the end of the tube.

[0024] Preferably, in one embodiment of this application, fins are provided at the junction of the pipe seat and the nozzle.

[0025] Preferably, in one embodiment of this application, the tube seat has a broken bridge connecting fin or the nozzle is provided with fins, and the piercing tube can only pierce the rubber plug and spray after the fins are broken.

[0026] Preferably, in one embodiment of this application, the tube seat is inserted into the rear cavity of the nozzle and does not protrude, so that the nozzle shielding and protecting the tube seat is not triggered by incorrect pressing.

[0027] Preferably, in one embodiment of this application, the width of the clearance groove is greater than 15 mm and the edges are smoothly provided.

[0028] Preferably, in one embodiment of this application, the piercing tube is a steel needle.

[0029] Preferably, in one embodiment of this application, the fin is a semi-circular fin, a semi-elliptical fin, or a triangular fin.

[0030] Preferably, in one embodiment of this application, the water core is used to fix the piercing tube portion;

[0031] The water core includes cyclone channels for generating atomization;

[0032] The piercing tube punctures the rubber stopper sealing the medicine to form an outlet channel;

[0033] Rubber stopper, used to seal the medicine solution when fitted with the tube body;

[0034] The tube body is used to store the medicinal liquid;

[0035] The nozzle, when used to administer medication, forms a channel with the water core for liquid atomization.

[0036] Tube seat, the drive button for drug delivery, used to secure the tube body.

[0037] Preferably, in one embodiment of this application, the usage process is as follows: In the unused state, the fins of the tube seat are positioned on the nozzle, and the glue position and the piercing tube do not contact each other, meaning the liquid is sealed in the bottle by the glue stopper; During use, the user places at least one finger on the finger support, and applies force axially along the liquid outlet channel on the tube seat with another finger. When the applied force is greater than the initial locking force of the fins, the broken bridge structure breaks, and the tube seat and tube body are pumped axially along the liquid outlet channel, causing the piercing tube to pierce the glue stopper, at which point a complete liquid outlet channel is formed; After the piercing tube pierces the glue stopper, the tube seat drives the tube body and glue stopper to move upwards until the glue stopper presses against the water core, and the pressure inside the tube increases. The liquid inside the tube is pumped out from the formed liquid outlet channel, and when passing through the cyclone trough, the liquid is dispersed into atomization by high-speed impact.

[0038] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0039] This application discloses a novel single-dose nasal spray product, a novel aerosol drug delivery device typically used to dispense a single dose of medication via the nasal cavity, mouth, or sublingual cavity, and is referred to as a single-dose spray device. When manually activated, a single dose of medication is dispensed or sprayed through a dispensing orifice; in the case of a single-dose device, all fluid is dispensed with a single activation. Single-dose nasal spray devices are commonly used to treat rhinitis, asthma, and as emergency treatment for epilepsy. These devices can precisely control the dosage and release rate of the medication, ensuring that the medication reaches the affected area directly and improving therapeutic efficacy. Simultaneously, single-dose nasal sprays can prevent drug abuse and strictly control the dosage, possessing the following technical characteristics:

[0040] Disposable, irreversible structure: The pump body is automatically damaged or jammed after the first use and cannot be restored to its initial state, thus eliminating the possibility of reuse from the structure.

[0041] Pre-use sealed storage: The medicine bottle opening is equipped with a sealing film or seal. When the pump body is first installed, the medicine is opened by the built-in puncture mechanism or film breaking device to ensure complete sealing storage before use.

[0042] Simple structure, easy to injection mold: The pump body adopts a few integrated structures, which is suitable for one-time injection molding and is conducive to mass production at low cost;

[0043] To avoid the risk of contamination: the agent has not come into contact with the outside world before each use, and each spray is completed through a brand-new sealed structure to avoid cross-contamination;

[0044] Anti-tampering and anti-counterfeiting design: The pump body and bottle body are designed with a destructive pressing mechanism and an irreversible locking structure. Forced disassembly will cause the pump body to break or the markings to be damaged, effectively preventing illegal recycling and modification. Moreover, it is only allowed for single use, the pressing stroke is a single press without rebound, and the liquid is only enough for one spray.

[0045] Stable spray output: Through the built-in limited-volume compression chamber and control nozzle, it can achieve single-quantity spray output, which is suitable for pharmaceuticals, disinfectants, medical sprays and other fields. Attached Figure Description

[0046] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0047] Figure 1 This is a perspective view of a single-dose nasal spray device according to the present invention;

[0048] Figure 2 This is a front view of a single-dose nasal spray device according to the present invention;

[0049] Figure 3 Top view of a single-dose nasal spray device according to this utility model;

[0050] Figure 4 A cross-sectional view of a single-dose nasal spray device according to this utility model;

[0051] Figure 5 of Figure 4 It is a color 3D image;

[0052] Components in the diagram:

[0053] 1. Sprayer head

[0054] 2. Finger support table

[0055] 3. Tube seat

[0056] 4. Pipe body

[0057] 5. Rubber stopper

[0058] 6. Water core

[0059] 7. Piercing tube section

[0060] 8. Fins. Detailed Implementation

[0061] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings. These embodiments are only for illustrating this application and are not intended to limit the scope of this utility model.

[0062] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0063] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0064] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0065] like Figure 1-5 A single-dose nasal spray device includes a nozzle 1, a tube seat 3, a tube body 4, a rubber stopper 5, a water core 6, and a piercing tube 7.

[0066] The nozzle 1 includes a head and a tail, and a finger support 2 is provided between the head and the tail;

[0067] The nozzle 1 has a water core 6 inside its head, and a piercing tube 7 inside the water core 6; the head is provided with a nozzle for spraying liquid.

[0068] A rubber stopper 5 is provided below the piercing tube section 7;

[0069] The lower part of the water core 6 is connected to the tube body 4, and the rubber stopper 5 is inserted into the tube body 4; the rubber stopper 5 and the tube body 4 are sealed to form a liquid cavity;

[0070] The tail of the piercing tube 7 is provided with a sharp point for piercing the rubber stopper 5 and penetrating the liquid cavity;

[0071] The nozzle 1 has a cavity at its tail end, and the side wall of the nozzle 1 has a clearance groove for pressing into the extrusion tube seat 3.

[0072] A limit is set between the tube seat 3 and the tube body 4 so that the tube seat 3 presses against the tube body 4, and the tube body 4 drives the rubber plug 5 to move closer to the piercing tube part 7.

[0073] The technical solution of this application has the following technical features: In order to solve the problems of high risk of cross-infection, complex structure, poor sealing and illegal reuse of existing spray products, a disposable pump body structure and an irreversible connection design with the medicine bottle are adopted. Combined with the destructive structure of fins and the puncture mechanism, it ensures sealed storage before use and has tamper-proof capabilities. This overcomes the safety hazards and unstable efficacy problems caused by the reusability of traditional spray pump bodies, and achieves the following technical effects:

[0074] 1. Achieve complete sealing before use, effectively ensuring the storage stability and sterility of the medicine before use;

[0075] 2. By employing a one-time destructive structural design, such as fin breakage triggering spray, the device is ensured to be non-reusable, thereby enhancing public health and regulatory safety;

[0076] 3. The one-piece molding structure reduces the number of parts and assembly steps, lowers production costs, and is suitable for large-scale single-use scenarios;

[0077] 4. The structure is simple and compact, with good ergonomic operation characteristics, adapting to the need for rapid application, and is especially suitable for high-frequency use scenarios in medical or public places.

[0078] 5. The liquid outlet channel is automatically formed through the piercing tube section, combined with the cyclone groove atomization design, to improve spraying efficiency and drug utilization rate;

[0079] 6. In emergency medical situations such as large-scale infectious diseases, nasal spray inhalation vaccination can be used without contact, and treatment can be achieved through acquired immunity or drug inhalation. The technical solution of this application provides an effective technical carrier for dealing with such emergency medical resource constraints.

[0080] This technical solution features simplified structure, single-use packaging, and secure anti-tampering as its core technical characteristics, effectively meeting the comprehensive requirements of disposable spray products for biosafety, ease of use, and cost control in public health and medical scenarios.

[0081] When implementing this application, the key points are as follows:

[0082] The device mainly consists of a nozzle, water core, piercing tube, rubber stopper, tube body and tube seat. It has a compact structure and is easy to use once.

[0083] A sealed structure is formed between the nozzle, the pipe body, and the water core to ensure that the liquid is completely sealed before use.

[0084] The fins connecting the nozzle and the pipe seat via a thermal break limit the initial position and prevent accidental triggering.

[0085] The piercing tube is located inside the water core and has sufficient length to pierce the rubber stopper to form a liquid outlet channel;

[0086] The fin structure is destructive; it breaks upon pressure, activating the spray device and cannot be reset, thus preventing secondary use.

[0087] The working principle of this application is as follows:

[0088] Before use, the liquid medicine is sealed in the tube below the rubber stopper, and the piercing tube does not come into contact with the liquid medicine. When using, the user positions their finger on the nozzle support and presses the tube seat at the same time. When the pressing force exceeds the fin's breaking strength, the fin breaks, and the tube seat pushes the tube body upward, causing the piercing tube to pierce the rubber stopper and form a liquid outlet channel. Subsequently, the tube body continues to move upward, compressing the liquid medicine. The liquid medicine enters the water core through the piercing tube channel, is atomized through the cyclone groove, and is sprayed out from the nozzle.

[0089] This application achieves the functions of single-use, efficient atomization and anti-reuse of the spray device through an integrated process of "press trigger - structural destruction - puncture seal - automatic spraying", and combines ease of operation, safety and hygiene.

[0090] Specifically, in one embodiment of this application, a sliding pair is formed between the tube body 4 and the inner wall of the nozzle 1, and a sliding movement space is provided, so that when the tube seat is pressed, the tube body 4 can smoothly slide along the axis of the nozzle 1 to the set position, thereby ensuring that the piercing tube 7 and the rubber plug 5 are accurately connected and the piercing process is smooth. At the same time, the range of motion is limited to prevent overpressure or deviation from causing structural damage or abnormal spraying, thereby achieving an organic unity of structural destructiveness, safety and atomization effect in single use.

[0091] The technical solution of this embodiment has the following technical features: In order to solve the problems of poor sealing control and unstable structural triggering in the traditional spray device during the drug activation process, a sliding pair is formed between the tube body 4 and the inner wall of the nozzle 1 and a sliding motion space is set up. This overcomes the spray instability and leakage risk caused by low assembly precision in the prior art, and achieves the technical effects of accurately controlling the puncture position, reliably forming the liquid outlet channel, ensuring the spray effect and sealing integrity.

[0092] Specifically, in one embodiment of this application, a sliding pair is formed between the tube seat 3 and the inner wall of the nozzle 1, and a sliding movement space is provided; this allows the tube seat 3 to maintain axial alignment with the nozzle 1 when the user presses it, thereby driving the tube body 4 to move upward stably, ensuring that the rubber stopper 5 is accurately punctured and the liquid is smoothly pumped out, effectively avoiding spray failure or structural damage caused by offset jamming, and improving the reliability and safety of use of the disposable device;

[0093] The technical solution of this embodiment has the following technical features: In order to solve the problems of centering difficulties, unsmooth triggering and structural jamming in the traditional spray device during the pressing and triggering process, a structural feature is adopted in which a sliding pair is formed between the tube seat 3 and the inner wall of the nozzle 1 and a sliding motion space is set. This overcomes the pressing resistance and puncture failure caused by poor tolerance fit or structural interference, and achieves the technical effects of smooth triggering process, stable structural fit and reliable liquid discharge control.

[0094] Specifically, in one embodiment of this application, the length of the protruding section of the piercing tube 7 extending out of the water core 6 is greater than the length required to pierce the rubber stopper 5;

[0095] The tube body 4 moves the rubber stopper 5 close to the piercing tube 7, so that the piercing tube 7 pierces the rubber stopper 5. The rubber stopper 5 is then pushed against by the water core 6. The sharp part of the piercing tube 7 passively enters the liquid chamber of the tube body 4. The liquid in the liquid chamber is squeezed and enters the nozzle 1 and the atomization channel of the water core 6 through the pipe of the piercing tube 7.

[0096] The piercing tube 7 extends a certain length beyond the water core 6 to ensure that the sharp part can easily pierce the rubber stopper 5 and enter the liquid chamber as the tube body 4 moves upward and drives the rubber stopper 5 closer. Subsequently, the liquid is fully squeezed under the pressure of the water core 6 and enters the nozzle 1 through the inner channel of the piercing tube 7. It is then scattered at high speed by the atomization structure of the water core 6 to form a fine mist, ensuring that the single dose of liquid is stably and thoroughly sprayed out.

[0097] The technical solution of this embodiment has the following technical features: In order to solve the problems of puncture failure, poor liquid flow or insufficient atomization in traditional spray devices, the extension length of the puncture tube 7 is greater than the length required to puncture the rubber stopper 5, and the rubber stopper 5 is brought closer to the puncture tube 7 by the tube body 4. This overcomes the defects such as incomplete puncture and interruption of drug delivery caused by insufficient puncture tube length and unstable puncture angle, and achieves the technical effects of stable and reliable puncture, rapid liquid flow and sufficient atomization.

[0098] Specifically, in one embodiment of this application, the tail of the tube body 4 is embedded in the tube seat 3, and the head of the tube body 4 is provided with a protruding ring for abutting the tube seat 3, or the tube seat 3 is provided with an abutting part for abutting the end of the tube body 4; thus, during use, the structural limiting achieves stable force transmission, avoiding force deviation that causes component misalignment or ineffective pushing; this structure ensures that during the pressing process, the tube body 4 can move precisely along the liquid outlet channel direction, driving the rubber stopper 5 to stably contact the piercing tube part 7, ensuring timely opening of the liquid outlet channel and efficient atomization spraying; the technical solution of this embodiment, by setting an abutting limiting structure between the tube body 4 and the tube seat 3, effectively solves the problems of unclear force transmission path, loose or misaligned structural fit, and overcomes the defects of piercing failure or spray failure caused by poor fit during use, achieving the technical effects of precise alignment, stable transmission and reliable spraying, and has the technical characteristics of simple structure, convenient assembly and high safety in use.

[0099] Specifically, in one embodiment of this application, a fin 8 is provided at the junction of the tube seat 3 and the nozzle 1; the tube seat 3 has a broken bridge connecting the fin 8 or the nozzle 1 is provided with a fin 8, and the piercing tube 7 can only pierce the rubber stopper 5 and spray after the fin 8 is broken; this structure uses the fin 8 as a physical triggering and limiting device. Before sufficient external force is applied, the fin 8 maintains the distance between the piercing tube 7 and the rubber stopper 5 to prevent accidental triggering or liquid leakage during transportation; in actual use, after the user applies force to cause the fin 8 to break, the piercing tube 7 can move and pierce the rubber stopper 5 to realize liquid spray output;

[0100] The technical solution of this embodiment has the following technical features: In order to solve the problem of premature spraying and safety hazards caused by accidental triggering, a broken bridge structure limiting fin is used as the triggering mechanism for the piercing action. This overcomes the defects of uncontrollable triggering and poor liquid storage safety in traditional spraying structures, and achieves the technical effects of preventing accidental triggering, safety controllability and intuitive operation.

[0101] Specifically, in one embodiment of this application, the tube seat 3 is inserted into the tail cavity of the nozzle 1 and does not protrude, so that the nozzle 1 blocks and protects the tube seat 3 from being accidentally pressed and triggered; the width of the clearance groove is greater than 15 mm and the edges are smoothly set.

[0102] This structure effectively prevents premature piercing due to external accidental contact by fully embedding the tube seat 3 inside the nozzle 1. At the same time, the width design of the avoidance groove meets the operating space requirements, and the smooth edge avoids scratches or damage to the user during operation. The technical solution of this embodiment has the following technical features: In order to solve the problem of poor operation safety due to easy accidental contact of the piercing tube structure, an embedded tube seat is used in conjunction with an external nozzle shielding structure, and a wide and smooth avoidance groove is set. This overcomes the defects of accidental triggering, insufficient operating space and poor user safety in the existing structure, and achieves a user-friendly technical effect of preventing accidental contact, safety and reliability, and easy operation.

[0103] Specifically, in one embodiment of this application, the piercing tube 7 is a steel needle with sufficient strength and rigidity to pierce the rubber plug 5, ensuring a stable and reliable piercing process; the fin 8 is a semi-circular, semi-elliptical, or triangular fin, which has a simple structure and is easy to break under a set force, forming an effective physical triggering mechanism; the technical solution of this embodiment has the following technical features: in order to solve the problems of insufficient piercing force and inaccurate triggering control in existing piercing structures, a high-strength steel needle is used as the piercing tube 7, and different shaped easily broken fins 8 are used as the triggering structure, overcoming the defects of unstable piercing effect and difficulty in precise triggering in traditional designs, and achieving the technical effects of clear piercing effect, controllable triggering mechanism, and simple and efficient structure.

[0104] Specifically, in one embodiment of this application, the water core 6 is used to fix the piercing tube 7;

[0105] Water core 6 includes cyclone channels for generating atomization;

[0106] The piercing tube 7 pierces the rubber stopper 5 that seals the medicine liquid to form an outlet channel;

[0107] Rubber stopper 5 is used to seal the medicine solution in conjunction with tube body 4;

[0108] Tube 4 is used to store the medicine solution;

[0109] The nozzle 1, when sealed with the water core 6, forms a channel for liquid atomization during drug delivery;

[0110] Tube seat 3, the drive button for drug administration, used to fix the tube body 4;

[0111] The tube body 4 has fins 8 connected by a broken bridge. Only when the fins 8 are broken can the piercing tube 7 pierce the rubber stopper 5 to spray, making it a one-time destructive structure.

[0112] Specifically, in one embodiment of this application, the usage process is as follows: In the unused state, the fins 8 of the tube seat 3 are positioned on the nozzle 1, and the glue position and the piercing tube 7 do not contact each other, that is, the liquid is sealed in the bottle by the glue stopper 5; When in use, the user has at least one finger restrained on the finger support 2, and the other finger applies force on the tube seat 3 along the axial direction of the liquid outlet channel. When the applied force is greater than the initial locking force of the fins 8, the fins 8 break, and the tube seat 3 and the tube body 4 pump along the axial direction of the liquid outlet channel, causing the piercing tube 7 to pierce the glue stopper 5. At this time, a complete liquid outlet channel is formed; After the piercing tube 7 pierces the glue stopper 5, the tube seat 3 drives the tube body 4 and the glue stopper 5 to move upward until the glue stopper 5 pushes against the water core 6, and the pressure inside the tube body 4 increases. The liquid inside the tube body 4 is pumped out from the formed liquid outlet channel. When passing through the cyclone groove, the liquid is dispersed into atomization by high-speed impact.

[0113] In summary, this utility model aims to solve the problems of high pollution risk, complex structure, poor sealing, and easy illegal reuse of existing spray products during repeated use. It provides a simple, low-cost spray pump and bottle combination device with disposable, destructive, and non-reusable characteristics. The pump body is integrally injection-molded, combined with a limited-volume compression chamber to form a press-and-spray system. The bottle is completely sealed before use; pressing punctures the seal to activate the spray, ensuring the agent does not come into contact with the outside environment before use, guaranteeing stable efficacy and hygiene. After the first use, the bottle automatically deteriorates without rebounding, eliminating the need for repeated pressing and ensuring the liquid is only sufficient for one press, preventing reuse. The irreversible connection between the pump body and bottle provides tamper-proof protection, preventing illegal reuse after recycling, and greatly improving the product's biosafety, reliability, and regulatory compliance.

[0114] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A single-dose nasal spray device, characterized in that, Includes nozzle (1), pipe seat (3), pipe body (4), rubber stopper (5), water core (6), and piercing tube (7); The nozzle (1) includes a head and a tail, and a finger support (2) is provided between the head and the tail; The nozzle (1) has a water core (6) inside its head, and a piercing tube (7) inside the water core (6); the head is provided with a nozzle for spraying liquid. A rubber stopper (5) is provided below the piercing tube (7); The lower part of the water core (6) is connected to the tube body (4), and the rubber stopper (5) is placed inside the tube body (4); the rubber stopper (5) and the tube body (4) are sealed to form a liquid cavity; The tail of the piercing tube (7) is provided with a sharp point for piercing the rubber stopper (5) and inserting into the liquid cavity; The nozzle (1) has a cavity at its tail end, and the side wall of the nozzle (1) has a clearance groove for pressing into the extrusion tube seat (3). A limit is set between the tube seat (3) and the tube body (4) so ​​that the tube seat (3) presses against the tube body (4) and the tube body (4) drives the rubber plug (5) to move closer to the piercing tube (7).

2. The single-dose nasal spray device as described in claim 1, characterized in that, A sliding pair is formed between the inner wall of the tube body (4) and the head of the nozzle (1), and a sliding movement space is provided; a sliding pair is formed between the tube seat (3) and the inner wall of the head of the nozzle (1), and a sliding movement space is provided.

3. A single-dose nasal spray device as described in claim 1, characterized in that, The length of the protruding section of the piercing tube (7) extending out of the water core (6) is greater than the length required to pierce the rubber stopper (5).

4. A single-dose nasal spray device as described in claim 1, characterized in that, The tube body (4) moves the rubber stopper (5) close to the piercing tube (7), so that the piercing tube (7) pierces the rubber stopper (5). The rubber stopper (5) is then pressed against by the water core (6), and the sharp part of the piercing tube (7) passively enters the liquid chamber of the tube body (4). The liquid in the liquid chamber is squeezed and then enters the atomization channel of the nozzle (1) and the water core (6) through the pipe of the piercing tube (7).

5. A single-dose nasal spray device as described in claim 4, characterized in that, The tail of the tube body (4) is embedded in the tube seat (3), and the head of the tube body (4) is provided with a protruding ring for abutting the tube seat (3), or the tube seat (3) is provided with an abutting part for abutting the end of the tube body (4).

6. A single-dose nasal spray device as described in claim 1, characterized in that, A fin (8) is provided at the connection between the pipe seat (3) and the nozzle (1).

7. A single-dose nasal spray device as described in claim 6, characterized in that, The tube seat (3) has a broken bridge connecting fins (8) or the nozzle (1) is provided with fins (8). When the fins (8) are broken, the piercing tube part (7) pierces the rubber stopper (5) and sprays.

8. A single-dose nasal spray device as described in claim 1, characterized in that, The tube seat (3) is inserted into the rear cavity of the nozzle (1) without protruding, so that the nozzle (1) shields and protects the tube seat (3) from being accidentally pressed and triggered.

9. A single-dose nasal spray device as described in claim 1, characterized in that, The width of the clearance groove is greater than 15 mm and the edge is smooth; the piercing tube (7) is a steel needle; the fin (8) is a semi-circular fin, a semi-elliptical fin, or a triangular fin.

10. A single-dose nasal spray device as described in claim 1, characterized in that, Water core (6), used to fix the piercing tube part (7); The water core (6) includes a cyclone groove for generating atomization; The piercing tube (7) pierces the rubber stopper (5) sealing the medicine liquid to form an outlet channel; A rubber stopper (5) is used to seal the medicine solution in conjunction with the tube body (4); The tube (4) is used to store the medicine solution; The nozzle (1) forms a channel with the water core (6) during drug administration, which is used for liquid atomization. Tube seat (3), drive button for drug administration, used to fix the tube body (4).

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