A nasal spray delivery device

Abstract

The present application is to solve the problem that the air inlet of the nasal spray delivery device is generally an open structure, and the atmosphere enters the inner cavity of the housing of the nasal spray delivery device, which easily causes the inner cavity of the housing to be contaminated, and the contaminants enter the human body through the nasal cavity when the medicament is used, thereby damaging the health of the human body. The present application provides a nasal spray delivery device, which is based on the existing nasal spray delivery device and is provided with a valve assembly at the end of the air inlet. In the operation process, the nozzle is placed in the user's nasal cavity, the air inlet is placed in the user's mouthpiece, and when the user does not use the nasal spray delivery device, the valve assembly is in a closed state. When the user uses the nasal spray delivery device, the medicine tank is pushed into the upper part of the housing, the valve assembly is opened, and the mouth is blown to make the gas enter the inner cavity of the housing, thereby avoiding the pollution caused by long-term exposure to the atmosphere and improving the medicament atomization effect of the nasal spray delivery device.

Description

[0001] This application is a divisional application of CN 111298249 B, filed on March 24, 2020, entitled "A New Type of Nasal Spray Delivery Device". TECHNICAL FIELD

[0002] The present application relates to the field of medical devices, and more particularly, to a nasal spray delivery device. BACKGROUND

[0003] There are many nasal conditions that require treatment, one such condition is rhinitis, specifically rhinitis of the nasal mucosa, which can be allergic or non-allergic, often associated with infection and which interferes with normal nasal function. For example, it is estimated that 10 to 20 percent of the population suffers from allergic and non-allergic inflammation of the nasal airway, at which time, nasal congestion of the concha sinus tissue, tearing, thin nasal discharge, sneezing and itching are the most common symptoms. It will be appreciated that nasal congestion interferes with nasal breathing, prompting oral breathing, leading to snoring and sleep disorders. Other nasal conditions include nasal polyps that protrude from the sinuses, hypertrophic tonsils, secretory otitis media, sinus disease and olfactory impairment.

[0004] In the treatment of certain nasal conditions, topical administration is advantageous, especially where the nasal mucosa is the primary pathologic pathway, for example, in the treatment or alleviation of nasal congestion, the agents typically administered topically include decongestants, antihistamines, cromolyns, steroids and antibiotics. Of the various known anti-inflammatory agents, topical steroids have shown to be effective against nasal congestion. Topical decongestants have also been suggested for use in reducing nasal congestion. The use of topical decongestants, steroids and antibiotics for the treatment of hypertrophic tonsils and chronic secretory otitis media, although controversial, has also been suggested. In addition, topical administration has been used to treat or at least alleviate inflammation of the nasopharyngeal region, the sinuses and the eustachian tube.

[0005] Agents can also be delivered systemically through the nasal passages, which provide an excellent route of administration for systemic delivery of drugs such as hormones (e.g., oxytocin and calcitonin) and analgesics (e.g., anti-migraine compositions) because of the high blood flow rate and large surface area of the nasal mucosa which facilitate rapid systemic absorption.

[0006] The existing nasal spray delivery device on the market generally has an open structure for the air inlet, and the atmosphere is introduced into the cavity of the housing of the nasal spray delivery device, which easily causes pollution in the cavity of the housing. The pollutants enter the human body through the nasal cavity when the medicament is used, which damages the human health. The existing medicament and device are integrated, and the existing nasal spray delivery device and medicament are assembled when leaving the factory. If disassembled, the shell and external stickers will be damaged. Some products are simply glued together, and after forced disassembly, the original function and appearance cannot be restored. The medicament cannot be supplemented for recycling use. After the medicament is used up, the whole device needs to be purchased again, and the old device also needs to be thrown away together with the used medicine tank, which is not only wasteful but also not environmentally friendly. SUMMARY

[0007] Therefore, the present application proposes a new nasal spray delivery device to solve the problem that the air inlet of the existing nasal spray delivery device is generally of an open structure, and the atmosphere is introduced into the cavity of the housing of the nasal spray delivery device, which easily causes pollution in the cavity of the housing. The pollutants enter the human body through the nasal cavity when the medicament is used, which damages the human health. The present application provides a new nasal spray delivery device, which is based on the existing nasal spray delivery device. A valve assembly is arranged at the end of the air inlet. When the user does not use the nasal spray delivery device, the valve assembly is in a closed state. When the user uses the nasal spray delivery device, the medicine tank is pushed into the upper part of the housing, and the valve assembly is opened at the same time, so that the gas enters the cavity of the housing. This avoids pollution caused by long-term exposure to the atmosphere, and the air inlet can improve the atomization effect of the medicament of the nasal spray delivery device.

[0008] A new nasal spray delivery device, comprising: a shell 1, a nozzle 2, an air inlet 3, a medicine tank 4, the shell 1 is a gourd-shaped, the shell 1 is a central axis symmetric internal cavity structure, the bottom of the shell 1 is a circular opening, the medicine tank 4 is connected in the internal cavity of the shell 1 through the circular hole of the bottom of the shell 1, the nozzle 2 is sleeved on the top end of the shell 1, the air inlet 3 is connected in the middle of the shell 1 and communicates with the inside of the shell 1, the inside of the port of the medicine tank 4 is provided with a liquid delivery structure 7, the delivery structure 7 comprises a common spray structure 71 and a guide pipe 72, the common spray structure 71 is arranged inside the bottle mouth end of the medicine tank 4, the outer wall of the spray structure 71 is symmetrically clamped with two guide grooves 115, the guide pipe 72 is sleeved inside the spray structure 71, one end of the guide pipe 72 is located at the port of the nozzle 2, the other end of the guide pipe 72 is arranged in the middle lower part of the medicine tank 4, characterized in that: the internal cavity of the shell 1 is provided with a valve assembly 11, the valve assembly 11 comprises a blowing valve 111 and an air inlet side retaining wall 112, the valve assembly 11 is close to the connection of the air inlet 3 and the shell 1, when the user does not use the nasal spray delivery device, the valve assembly 11 is in a closed state, when the user uses the nasal spray delivery device, the nozzle 2 is arranged in the nasal cavity of the user, the air inlet 3 is arranged in the mouthpiece of the user, the medicine tank 4 is pushed into the bottom of the shell 1, and the valve assembly 11 is opened at the same time, and the user blows air with the mouth, so that the gas enters the internal cavity of the shell 1, pollution caused by long-term exposure to the atmosphere is avoided, and the air inlet 3 can improve the medicine atomization effect of the nasal spray delivery device.

[0009] Further, the air inlet side retaining wall 112 is located at the opening of the connection of the shell 1 and the air inlet 3, the air inlet side retaining wall 112 is a fan-shaped structure from top to bottom, the fan-shaped structure comprises a first fan-shaped surface 1121 and a second fan-shaped surface 1122, the first fan-shaped surface 1121 and the second fan-shaped surface 1122 are parallel and spaced apart, the arc side of the first fan-shaped surface 1121 is fixedly connected to the upper end of the opening in the inside of the shell 1, the arc side of the second fan-shaped surface 1122 is fixedly connected to the lower end of the opening in the inside of the shell 1, and the arc sides of the first fan-shaped surface 1121 and the second fan-shaped surface 1122 are integrally formed with the shell 1.

[0010] Further, the same side of the first fan-shaped surface 1121 and the second fan-shaped surface 1122 is connected with a connecting piece 1123, a first air hole 11231 is formed in the middle of one end of the connecting piece 1123, and the first air hole 11231 communicates with the opening of the connection of the air inlet 3.

[0011] Further, the other same side of the first fan-shaped surface 1121 and the second fan-shaped surface 1122, i.e. the side not connected with the connecting piece 1123, is respectively provided with a first groove 11211 and a second groove 11221.

[0012] Further, the lower part of the air inlet side baffle 112 is provided with a first limiting structure 113 in parallel, the first limiting structure 113 is integrally formed with the inner wall of the shell 1, one end of the first limiting structure 113 is provided with a third groove 1131, the center lines of the first groove 11211, the second groove 11221 and the third groove 1131 are on a straight line.

[0013] Further, the blowing valve 111 is a rectangular sheet, the middle part of the blowing valve 111 is provided with a second air hole 1111, when in use, the second air hole 1111 is just overlapped with the first air hole 11231, when not in use, the second air hole 1111 is not overlapped with the first air hole 11231, the two ends of the blowing valve 111 are respectively fixedly and perpendicularly connected with a second limiting structure 1113 and a third limiting structure 1114, one side of the blowing valve 111 is clamped with the first groove 11211, the second groove 11221 and the third groove 1131.

[0014] Further, the second limiting structure 1113 is located on the upper part of the first fan-shaped sheet, the third limiting structure 1114 is located on the lower part of the first limiting structure 113, the third limiting structure 1114 is provided with a boss 1112 near the perpendicular line of the first limiting structure 113, the boss 1112 is integrally formed with the third limiting structure 1114.

[0015] Further, the boss 1112 is provided with a reset spring 8, one end of the reset spring 8 is close to the lower end surface of the first limiting structure 113, the other end of the reset spring 8 is sleeved on the boss 1112, when the medicine tank 4 is used, the medicine tank 4 is pushed upward, which provides an upward thrust to the spring, the spring must have a downward reaction force, thereby facilitating the reset of the medicine tank 4.

[0016] Further, the upper end of the medicine tank 4 is provided with a medicine tank cover 5, the outer wall of the medicine tank cover 5 is provided with two guide ribs 51 at the positions corresponding to the guide grooves 115, the medicine tank cover 5 is connected with the shell 1 through a detachable connection structure 6, the connection mode of the detachable connection structure 6 includes buckle structure connection and thread connection and other detachable connections.

[0017] Further, the bottom of the detachable connection structure 6 is integrally formed with a fourth limiting structure 114, the guide grooves 115 are perpendicularly connected on the fourth limiting structure 114 and integrally formed with the fourth limiting structure 114, when the nasal spray delivery device is pressed, a guide is provided to the spray structure 71, which ensures that it only moves up and down in the guide grooves 115.

[0018] Further, the ordinary spray structure 71 is movably connected with the medicine tank cover 5, and the top end of the ordinary spray structure 71 is close to the lower end surface of the third limiting structure 1114, when in use, the bottom of the medicine tank 4 is pressed up and down, so that the medicine tank cover 5 moves up and down to complete the drug delivery process.

[0019] The beneficial effects of the present application: when the user does not use the nasal spray delivery device, the second limiting structure 1113 of the blowing valve 111 is attached to the upper end surface of the first sector, the reset spring 8 is in a natural state, the first gas hole 11231 is completely overlapped with the second gas hole 1111, and the valve assembly 11 is in a closed state, so that the gas enters the inner cavity of the shell 1, avoiding pollution caused by long-term exposure to the atmosphere, and the air inlet 3 is in the inner cavity of the shell 1. When the user uses the nasal spray delivery device, the nozzle 2 is placed in the user's nasal cavity, the air inlet 3 is placed in the user's mouthpiece, the top end of the boss 1112 of the third limiting structure 1114 of the blowing valve 111 is attached to the lower end surface of the first limiting structure 113, the reset spring 8 is in a tight state, the first gas hole 11231 is completely overlapped with the second gas hole 1111, the opening of the valve assembly 11 and the air inlet 3 is connected, and the opening of the valve assembly 11 and the air inlet 3 is connected. The blowing gas flow can pass through the blowing valve 111 and enter the inner cavity of the shell 1, forming a continuous gas flow from the air inlet 3 to the nozzle 2, at the same time, pressing the medicine tank 4 also causes the spray in the medicine tank 4 to be sprayed out, and the blowing gas flow plays a role in accelerating the spray. According to Bernoulli's principle, in the same fluid, the flow rate is large, and the pressure is small; the flow rate is small, and the pressure is large, the fluid will automatically flow from high pressure to low pressure, the gas flow pressure on the medicine tank cover 5 is increased, and the atomization effect of the medicine of the nasal spray delivery device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is an appearance structure diagram of the novel nasal spray delivery device of the present application.

[0021] Figure 2 It is an internal structure diagram of the novel nasal spray delivery device of the present application.

[0022] Figure 3 It is a valve assembly structure diagram of the novel nasal spray delivery device of the present application.

[0023] Figure 4 It is a blowing valve structure diagram of the novel nasal spray delivery device of the present application.

[0024] Figure 5 It is a guide rib structure diagram of the medicine tank cover of the novel nasal spray delivery device of the present application.

[0025] Figure 6 It is a guide groove structure diagram of the novel nasal spray delivery device of the present application.

[0026] Figure 7 It is a guide rib and guide groove engagement structure diagram of the novel nasal spray delivery device of the present application.

[0027] Explanation of main component symbols

[0028]

[0029] The following detailed description will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION Specific embodiments:

[0031] As shown in FIG. 1, it is a schematic diagram of the appearance structure of the new nasal spray delivery device of the present application; as shown in FIG. 2, it is a schematic diagram of the internal structure of the new nasal spray delivery device of the present application; as shown in FIG. 3, it is a schematic diagram of the valve assembly structure of the new nasal spray delivery device of the present application; as shown in FIG. 4, it is a schematic diagram of the air blowing valve structure of the new nasal spray delivery device of the present application; as shown in FIG. 5, it is a schematic diagram of the drug tank cover structure of the new nasal spray delivery device of the present application; as shown in FIG. 6, it is a schematic diagram of the guide groove structure of the new nasal spray delivery device of the present application; as shown in FIG. 7, it is a schematic diagram of the guide rib and guide groove engagement structure of the new nasal spray delivery device of the present application. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

[0032] A new nasal spray delivery device, comprising: a shell 1, a nozzle 2, an air inlet 3, a drug tank 4, the shell 1 is gourd-shaped, the shell 1 is a central axis symmetric internal cavity structure, the bottom of the shell 1 is a circular opening, the drug tank 4 is connected in the internal cavity of the shell 1 through the circular hole at the bottom of the shell 1, the nozzle 2 is sleeved at the top end of the shell 1, the air inlet 3 is connected at the middle part of the shell 1 and communicates with the inside of the shell 1, the inside of the port of the drug tank 4 is provided with a liquid delivery structure 7, the delivery structure 7 comprises a common spray structure 71 and a guide pipe 72, the inside of the bottle mouth end of the drug tank 4 is provided with the common spray structure 71, the outer wall of the spray structure 71 is symmetrically clamped with two guide grooves 115, the inside of the spray structure 71 is sleeved with the guide pipe 72, one end of the guide pipe 72 is located at the port of the nozzle 2, the other end of the guide pipe 72 is located in the middle lower part of the drug tank 4, characterized in that: the internal cavity of the shell 1 is provided with a valve assembly 11, the valve assembly 11 comprises an air blowing valve 111 and an air inlet side retaining wall 112, the valve assembly 11 is close to the connection of the air inlet 3 and the shell 1, when the user does not use the nasal spray delivery device, the valve assembly 11 is in a closed state, when the user uses the nasal spray delivery device, the nozzle 2 is placed in the user's nasal cavity, the air inlet 3 is placed in the user's mouthpiece, the drug tank 4 is pushed into the bottom of the shell 1, at the same time, the valve assembly 11 is opened, and the mouth is blown, so that the gas enters the internal cavity of the shell 1, which avoids pollution caused by long-term exposure to the atmosphere and the air inlet 3 can improve the drug atomization effect of the nasal spray delivery device.

[0033] ​​​​​​​The air inlet side retaining wall 112 is located at the opening of the connection between the shell 1 and the air inlet 3, and the air inlet side retaining wall 112 is a fan-shaped structure from top to bottom, which includes a first fan-shaped surface 1121 and a second fan-shaped surface 1122. The first fan-shaped surface 1121 and the second fan-shaped surface 1122 are parallel and spaced apart. The curved edge of the first fan-shaped surface 1121 is fixedly connected to the upper end of the opening in the shell 1, and the curved edge of the second fan-shaped surface 1122 is fixedly connected to the lower end of the opening in the shell 1. The curved edges of the first fan-shaped surface 1121 and the second fan-shaped surface 1122 are integrally formed with the shell 1.

[0034] The same side of the first fan-shaped surface 1121 and the second fan-shaped surface 1122 is connected with a connecting piece 1123. A first air hole 11231 is formed in the middle of one end of the connecting piece 1123, and the first air hole 11231 is communicated with the opening of the connection between the air inlet 3.

[0035] The other same side of the first fan-shaped surface 1121 and the second fan-shaped surface 1122, i.e. the side not connected with the connecting piece 1123, is respectively provided with a first recess 11211 and a second recess 11221.

[0036] The lower part of the air inlet side retaining wall 112 is provided with a first limiting structure 113 which is parallel and spaced apart. The first limiting structure 113 is integrally formed with the inner wall of the shell 1. The first limiting structure 113 is provided with a third recess 1131 at one end. The center lines of the first recess 11211, the second recess 11221 and the third recess 1131 are on a straight line.

[0037] The blowing valve 111 is a rectangular sheet. The middle part of the blowing valve 111 is provided with a second air hole 1111. When in use, the second air hole 1111 is just overlapped and communicated with the first air hole 11231. When not in use, the second air hole 1111 is not overlapped with the first air hole 11231. The two ends of the blowing valve 111 are respectively fixedly and perpendicularly connected with a second limiting structure 1113 and a third limiting structure 1114. One side of the blowing valve 111 is clamped with the first recess 11211, the second recess 11221 and the third recess 1131.

[0038] The second limiting structure 1113 is located at the upper part of the first fan-shaped piece, and the third limiting structure 1114 is located at the lower part of the first limiting structure 113. The third limiting structure 1114 is provided with a boss 1112 near the perpendicular line of the first limiting structure 113. The boss 1112 is integrally formed with the third limiting structure 1114.

[0039] The boss 1112 is provided with a reset spring 8, one end of the reset spring 8 is close to the lower end surface of the first limiting structure 113, the other end is sleeved on the boss 1112, when the medicine tank 4 is used, the medicine tank 4 is pushed upward, an upward thrust is applied to the spring, the spring must have a downward reaction force, thereby facilitating the reset of the medicine tank 4.

[0040] The upper end of the medicine tank 4 is provided with a medicine tank cover 5, the outer wall of the medicine tank cover 5 is provided with a guide rib 51 at the corresponding position of the guide groove 115, the medicine tank cover 5 is connected with the shell 1 through a detachable connection structure 6, the connection mode of the detachable connection structure 6 includes buckle structure connection and thread connection and other detachable connections.

[0041] The bottom of the detachable connection structure 6 is integrally formed with a fourth limiting structure 114, the guide groove 115 is vertically connected on the fourth limiting structure 114 and is integrally formed with the fourth limiting structure 114, when the nasal spray delivery device is pressed, a guide is provided for the spray structure 71, which ensures that it only moves up and down in the guide groove 115.

[0042] The ordinary spray structure 71 is movably connected with the medicine tank cover 5, and the top end of the ordinary spray structure 71 is close to the lower end surface of the third limiting structure 1114, when in use, the bottom of the medicine tank 4 is pressed up and down, so that the medicine tank cover 5 moves up and down for the ordinary spray structure 71 to complete the drug delivery process.

[0043] The beneficial effects of the present application are as follows: when the user does not use the nasal spray delivery device, the second limiting structure 1113 of the blowing valve 111 is attached to the upper end surface of the first sector, the reset spring 8 is in a natural state, the first air hole 11231 is completely overlapped with the second air hole 1111, and the valve assembly 11 is in a closed state, so that the gas enters the inner cavity of the shell 1, avoiding pollution caused by long-term exposure to the atmosphere, the air inlet 3 is in the inner cavity of the shell 1, when the user uses the nasal spray delivery device, the nozzle 2 is placed in the user's nasal cavity, the air inlet 3 is placed in the user's mouthpiece, the top end of the boss 1112 of the third limiting structure 1114 of the blowing valve 111 is attached to the lower end surface of the first limiting structure 113, the reset spring 8 is in a tight state, the first air hole 11231 is completely overlapped with the second air hole 1111, the opening of the valve assembly 11 and the air inlet 3 is connected, one side blows air to the air inlet and the other side pushes the medicine tank 4 to the upper part of the shell 1, the medicine tank 4 moves upward to drive the valve assembly 11 to open, after the blowing valve 111 is opened, the blowing air flow can enter the inner cavity of the shell 1 through the blowing valve 111, forming a continuous air flow from the air inlet 3 to the nozzle 2, at the same time, pressing the medicine tank 4 also causes the spray in the medicine tank 4 to be sprayed out, the blowing air flow plays a function of accelerating the spray, according to Bernoulli's principle, which states that in the same fluid, the flow rate is large, the pressure is small; the flow rate is small, the pressure is large, the fluid will automatically flow from high pressure to low pressure, increasing the air flow pressure above the medicine tank cover 5 to improve the atomization effect of the nasal spray delivery device.

[0044] The above-described embodiments only express several embodiments of the present application, which are described in detail and specifically, but cannot be understood as limiting the scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A nasal spray delivery device, characterized by, The application relates to a nasal spray delivery device, comprising: a housing; a nozzle and an air inlet arranged at the top and middle of the housing respectively and communicating with the inner cavity of the housing; a medicine tank movably arranged in the inner cavity of the housing, the medicine tank being connected with the nozzle through a delivery structure; a valve assembly arranged at the joint of the air inlet and the housing and mechanically linked with the medicine tank to selectively control the opening and closing of the air inlet; wherein the valve assembly comprises an air inlet side baffle wall and a blowing valve, the air inlet side baffle wall is arranged at the joint of the air inlet and the housing, the air inlet side baffle wall comprises first and second opposite fan-shaped surfaces and a connecting piece connecting the first and second fan-shaped surfaces, the first and second fan-shaped surfaces are respectively provided with first and second grooves for the blowing valve to pass through, the middle of the connecting piece is provided with a first air hole, the blowing valve movably penetrates the air inlet side baffle wall, and the blowing valve is provided with a second air hole; the nasal spray delivery device is configured to: when not in use, the first air hole and the second air hole are in a non-overlapping state, and the valve assembly closes the air inlet; when in use, the medicine tank is pushed towards the bottom of the housing, the valve assembly is driven to open the air inlet, the first air hole and the second air hole are in an overlapping state, and the blowing airflow can accelerate the spray at the nozzle.

2. The nasal spray delivery device of claim 1, wherein, The housing is in the shape of a gourd, and the bottom of the housing is provided with a circular opening matched with the medicine tank.

3. The nasal spray delivery device of claim 1, wherein, The lower part of the air inlet side baffle wall is provided with a first limiting structure, and the first limiting structure is provided with a third groove for the blowing valve to pass through.

4. The nasal spray delivery device of claim 3, wherein, The upper and lower ends of the blowing valve are respectively provided with a second limiting structure and a third limiting structure, the second limiting structure is located above the first fan-shaped surface, and the third limiting structure is located below the first limiting structure.

5. The nasal spray delivery device of claim 4, wherein, A reset spring is arranged between the third limiting structure and the first limiting structure.

6. The nasal spray delivery device of claim 5, wherein, One side of the third limiting structure towards the first limiting structure is provided with a boss, one end of the reset spring is sleeved on the boss, and the other end is tightly attached to the lower end surface of the first limiting structure.

7. The nasal spray delivery device of claim 3, wherein, The delivery structure comprises: a spray structure movably connected with the medicine tank cover of the medicine tank, and the top end of the spray structure abuts against the lower end surface of the first limiting structure; a guide pipe, one end of which extends to the nozzle, and the other end of which is arranged in the medicine tank.

8. The nasal spray delivery device of claim 7, wherein, The two sides of the spray structure are symmetrically provided with guide grooves, and the outer wall of the medicine tank cover is provided with guide ribs corresponding to the guide grooves.

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