Spraying structure and nasal spray device

Abstract

The utility model discloses a spray structure and a nasal spray device. The spray structure comprises an upper shell, an insertion core and an atomization unit, the upper shell is provided with a spraying head part extending in the axial direction; the insertion core part is arranged in the spray head part, and an axial through flow channel is arranged in the insertion core; the atomization unit is arranged between the inner top of the upper shell and the top of the insertion core, and the atomization unit is communicated with the flow channel and used for converting liquid in the flow channel into atomized liquid drops and releasing the atomized liquid drops outwards. According to the spraying structure, the runner is formed in the insertion core, and the atomization unit is additionally arranged, so that released mist-state liquid drop particles are smaller and can be easily absorbed by a human body, the agglomeration problem is not prone to occurring, the atomization effect is effectively improved, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a spray structure and a nasal spray device. Background Art

[0002] Nasal spraying is a procedure to atomize the nasal cavity, which is mainly used for patients with rhinitis, nasal polyps or nasal surgery. The most effective and convenient way is to deliver drugs to the nasal cavity through a nasal spray device, so that the drugs can be delivered to the whole body through the nasal passages to achieve the purpose of rapid treatment.

[0003] As attached Figure 7 As shown, the spray structure of the existing nasal spray device is mainly composed of a spray head and an insert. After the insert is placed in the spray head, its outer periphery will form a narrow and long flow channel with the inner wall of the spray head. Under the action of pressure, the liquid passes through the flow channel and is released from the spray head to form droplet particles.

[0004] It is found in actual use that the droplets formed by the above-mentioned spray structure have a large particle size, which is not conducive to human absorption after entering the respiratory system. In addition, the droplet morphology is poorly stable and the droplets are easily mixed and agglomerated, resulting in a decrease in the atomization effect.

[0005] Based on the above problems, the present application proposes a spray structure and a nasal spray device, aiming to improve the atomization effect of the spray structure and improve the patient experience. Utility Model Content

[0006] The purpose of the utility model is to provide a spray structure and a nasal spray device, by optimizing the design of the spray structure, so as to improve the atomization effect, so that users can get better treatment and use experience.

[0007] The purpose of the utility model is achieved by the following technical solutions:

[0008] A spray structure, comprising:

[0009] An upper shell, wherein the upper shell has a spray head extending in the axial direction;

[0010] An insert core, wherein the insert core portion is disposed in the nozzle head portion, and an axially penetrating flow channel is disposed in the insert core;

[0011] an atomizing unit, the atomizing unit being arranged between the inner top of the upper shell and the top of the insert, the atomizing unit being connected to the flow channel;

[0012] The two ends of the atomizing unit are respectively provided with an inlet and an outlet, a filter assembly is provided between the inlet and the outlet, and the liquid transported from the flow channel to the atomizing unit can be converted into mist droplets under the action of the filter assembly and released outward.

[0013] In some embodiments, the spray head is provided with a conical nozzle, and the atomization unit is located directly below the nozzle.

[0014] In some embodiments, a mounting groove is provided on the top of the ferrule;

[0015] The atomizing unit is arranged in the installation groove, and a clamping piece is arranged between the outer periphery of the atomizing unit and the groove wall of the installation groove;

[0016] A sealing ring is arranged between the lower bottom of the clamping member and the inner bottom of the mounting groove.

[0017] In some embodiments, there are two outlets and they are symmetrical about the center line of the atomization unit, and the angle α formed by the jet extension lines of the two outlets is an obtuse angle.

[0018] In some embodiments, the filter assembly is located inside the atomization unit, and the filter assembly includes a first microstructure unit, a second microstructure unit, and a third microstructure unit that are sequentially arranged along the flow direction.

[0019] In some embodiments, the atomization unit comprises:

[0020] First layer board;

[0021] a second layer board, the second layer board being arranged on the first layer board;

[0022] The first microstructure unit and the second microstructure unit are integrally formed on the first layer board, the third microstructure unit is integrally formed on the second layer board, and part of the third structure unit is filled in part of the second microstructure unit.

[0023] A nasal spray device comprises the above-mentioned spray structure.

[0024] In some embodiments, the nasal spray device further comprises:

[0025] A bottle body, wherein the bottle body is used for filling liquid;

[0026] A cover body, the cover body is arranged at the bottle mouth of the bottle body, and the cover body is slidably matched with the upper shell;

[0027] A pressure pump assembly, wherein the pressure pump assembly is partially disposed in the bottle body and is slidably and sealingly connected to the bottom of the insert;

[0028] An infusion tube is arranged below the pressure pump assembly and extends to the inner bottom of the bottle body.

[0029] In some embodiments, the bottle body is made of a transparent material; or, a window is provided on the side wall of the bottle body.

[0030] In some embodiments, the lower end of the infusion tube is connected to a soft tube.

[0031] Compared with the prior art, the beneficial effects of the utility model include at least: the spray structure opens a flow channel inside the core and adds an atomization unit, so that the released mist droplet particles are smaller, which is conducive to human absorption and less likely to have agglomeration problems, effectively improving the atomization effect and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional schematic diagram of the spray structure of an embodiment of the utility model.

[0033] Figure 2 It is an axial cross-sectional view of the spray structure of an embodiment of the utility model.

[0034] Figure 3 yes Figure 2 A partial enlarged view of .

[0035] Figure 4 It is a structural schematic diagram of an atomization unit of an embodiment of the utility model.

[0036] Figure 5 It is a schematic diagram of the exploded structure of the atomization unit of an embodiment of the utility model.

[0037] Figure 6 It is a schematic structural diagram of a nasal spray device according to an embodiment of the utility model.

[0038] Figure 7 It is a schematic diagram of the spray structure in the prior art.

[0039] In the figure: 1, upper shell; 11, nozzle head; 111, nozzle; 2, core; 21, flow channel; 22, mounting groove; 3, atomization unit; 31, inlet; 32, outlet; 33, filter assembly; 331, first microstructure unit; 332, second microstructure unit; 333, third microstructure unit; 34, first layer; 35, second layer; 4, clamp; 5, sealing ring; 6, bottle body; 7, cover body; 8, pressure pump assembly; 9, infusion tube; 10, hose. DETAILED DESCRIPTION

[0040] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete and to fully convey the concepts of example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0041] The words expressing positions and directions described in the present utility model are all explained by taking the drawings as examples, but they can be changed as needed, and all the changes are included in the protection scope of the present utility model.

[0042] See also Figures 1 to 3 As shown, the utility model discloses a spray structure, which is mainly used for nasal spray devices, and can also be used for other spray devices that require atomization. The spray structure of the present application includes an upper shell 1, an insert 2 and an atomization unit 3.

[0043] like Figure 1 and Figure 2 As shown, the upper shell 1 is a cylindrical structure, one end of the upper shell 1 is open for assembly with the cover body 7, and the other end of the upper shell 1 is closed and is usually used as a pressing end.

[0044] In addition, the upper shell 1 has a spray head 11 extending in the axial direction. For example, the spray head 11 can be integrally formed at the center of the closed end of the upper shell 1. The spray head 11 is generally a columnar structure and is hollow inside so as to install the insert 2.

[0045] like Figure 2 As shown, the core 2 is partially arranged in the nozzle head 11, and an axially penetrating flow channel 21 is arranged in the core 2. The liquid can be transported to the atomization unit 3 through the flow channel 21. At the same time, the core 2 itself also serves as a carrier for pressure transmission. The pressure acting on the upper shell 1 can be transmitted to the pressure pump assembly 8 through the core 2, thereby realizing the liquid supply function.

[0046] The atomizing unit 3 is arranged between the inner top of the upper shell 1 and the top of the insert 2. Figure 3 As shown, a mounting groove 22 is provided at the top of the insert 2, and its cross-section is preferably trapezoidal to provide a good side clamping force and have an anti-slip effect. The atomization unit 3 is seated in the mounting groove 22, and a clamping piece 4 is provided between the outer periphery of the atomization unit 3 and the groove wall of the mounting groove 22 to clamp and stabilize the atomization unit 3. In addition, a sealing ring 5 is provided between the lower bottom of the clamping piece 4 and the inner bottom of the mounting groove 22 to play a sealing role, so that the liquid transported from the flow channel 21 to the mounting groove 22 can only be released through the atomization unit 3, effectively eliminating the possibility of leakage, thereby ensuring the atomization effect. It should be noted that the above-mentioned detachable mounting structure is only an exemplary method. In some other embodiments, the atomization unit 3 can also be fixed to the top of the insert 2 by hot sealing by hot melting.

[0047] The atomizing unit 3 is connected to the flow channel 21 to convert the liquid in the flow channel 21 into atomized droplets and release them outward. Specifically, the two ends of the atomizing unit 3 of the present application are respectively provided with an inlet 31 and an outlet 32, and a filter component 33 is provided between the inlet 31 and the outlet 32. Figure 4As shown, the filter assembly 33 includes a first microstructure unit 331 , a second microstructure unit 332 and a third microstructure unit 333 which are sequentially arranged along the flow direction.

[0048] Among them, the first microstructure unit 331 can be composed of a number of convex strips arranged at intervals, and each convex strip can be arranged in a line in the horizontal direction. The filtering accuracy of the first microstructure unit 331 is less than or equal to 0.1mm. The second microstructure unit 332 is composed of a number of convex blocks arranged at intervals, and each convex block is arranged to form a corrugated structure. The second microstructure unit 332 serves as the main filter, and its filtering accuracy is less than or equal to 0.002mm. The third microstructure unit 333 is composed of a number of closely arranged convex columns, and some of the convex columns are filled between the second microstructure units 332. The filtering accuracy of the third microstructure unit 333 is less than or equal to 0.01mm. The liquid input from the flow channel 21 in the core 2 can be converted into extremely small mist droplets and released outward after three-stage filtration and refinement, forming a soft mist with better atomization effect.

[0049] In summary, the spray structure of the present application opens the flow channel 21 inside the insert 2 and adds the atomization unit 3, so that the released mist droplets are smaller, which is conducive to human absorption and less likely to cause agglomeration problems, effectively improving the atomization effect and improving the user experience. Figure 7 The existing spray structure shown in the present application relies on the atomizing unit 3 to achieve the droplet miniaturization function, so there is no need to consider the precise size matching relationship between the insert 2 and the nozzle head 11, and the requirements for manufacturing and assembly are lower, which can effectively improve production efficiency.

[0050] See also Figures 1 to 3 As shown, in a specific embodiment, the nozzle head 11 is provided with a conical nozzle 111, and the atomizing unit 3 is located directly below the nozzle 111. In this structure, the conical nozzle 111 can give the mist droplets released from the atomizing unit 3 a certain mist shape (equivalent to setting a deflection angle), which is more conducive to respiratory absorption and improves the treatment effect.

[0051] See also Figure 4 As shown, in a preferred embodiment, there are two outlets 32 and they are symmetrical about the center line of the atomization unit 3. The double outlet 32 ​​design can provide a larger atomization area, so that the liquid preparation can be fully atomized and form more and smaller mist droplets.

[0052] Moreover, the angle α formed by the jet extension lines of the two outlets 32 is an obtuse angle, which makes the two jet directions relatively dispersed, and the mist droplets will diffuse and mix over a longer distance, thereby forming a larger and more uniform atomization range, thereby improving the coverage of the spray, so that the mist droplets can be more evenly distributed in the entire spray area, achieving a better atomization effect. In addition, the obtuse angle a can also reduce the mutual interference and collision of the mist droplets during the spraying process, reduce the aggregation phenomenon between the droplets, and further refine the size of the atomized droplets, thereby improving the quality effect.

[0053] See also Figure 4 and Figure 5 As shown, in a preferred embodiment, the atomization unit 3 includes a first layer plate 34 and a second layer plate 35. In the atomization unit 3, the first layer plate 34 and the second layer plate 35 are the same rectangular plates, and the second layer plate 35 is arranged on the first layer plate 34. The filter assembly 33 is between the first layer plate 34 and the second layer plate 35, wherein the first microstructure unit 331 and the second microstructure unit 332 are integrally formed on the first layer plate 34, the third microstructure unit 333 is integrally formed on the second layer plate 35, and part of the third structure unit is filled in part of the second microstructure unit 332. In this structure, the atomization unit 3 is a double-layer structure, by preparing the first microstructure unit 331 and the second microstructure on the first layer plate 34, and preparing the third microstructure unit 333 on the second layer plate 35, so as to avoid concentrated etching (if the microstructure pattern is etched in one layer, the precision requirement is high), thereby reducing the manufacturing difficulty and precision requirement of the filter assembly 33. In addition, the filter component 33 adopts a layered etching method. If the microstructure pattern on any of the first layer 34 and the second layer 35 is defective, only the corresponding layer needs to be replaced. The fault tolerance rate is high and it will not lead to complete scrapping, thereby reducing manufacturing costs.

[0054] See also Figure 6 As shown, the present invention also discloses a nasal spray device, including the above-mentioned spray structure. The nasal spray device has good atomization effect and can enable users to obtain better treatment and use experience.

[0055] In addition, the nasal spray device further comprises a bottle body 6 , a cover body 7 , a pressure pump assembly 8 and an infusion tube 9 .

[0056] The bottle body 6 is used for filling liquid.

[0057] The cover 7 is arranged at the bottle mouth of the bottle body 6, and the cover 7 is threadedly fixed to the bottle body 6, and a sealing gasket is arranged between the two to seal. In addition, the outer diameter of the cover 7 is adapted to the inner diameter of the upper shell 1, so that the cover 7 can slide with the upper shell 1, can play a guiding role, and improve the stability of the movement of the upper shell 1.

[0058] The pressure pump assembly 8 is partially disposed in the bottle body 6, the top of the pressure pump assembly 8 is slidably and sealedly connected to the bottom of the insert 2, the bottom of the pressure pump assembly 8 is connected to the infusion tube 9, and the infusion tube 9 extends to the inner bottom of the bottle body 6. Under the action of pressing, the pressure pump assembly 8 can extract the liquid in the bottle body 6 through the infusion tube 9, which is a prior art and will not be described in detail here.

[0059] In a specific embodiment, the bottle body 6 is made of a transparent material, for example, the bottle body 6 can be a transparent plastic bottle or glass bottle; or, a window (not shown) is provided on the side wall of the bottle body 6. This design facilitates the user to observe the remaining amount and state of the liquid in the bottle (whether it is deteriorated or contaminated) in real time, thereby improving the convenience and safety of medication.

[0060] In a preferred embodiment, the lower end of the infusion tube 9 is connected to a hose 11, which can move to the liquid collection position as the bottle body 6 tilts, effectively solving the problem that a small amount of liquid in the bottle cannot be absorbed, improving the utilization rate of the liquid, avoiding waste and pollution of the liquid, and reducing the user's cost of use.

[0061] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the utility model. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the utility model without departing from the principles and purpose of the utility model. All of these changes should fall within the scope of protection of the claims of the utility model.

Claims

1. A spray structure, characterized in that: include: An upper shell (1), the upper shell (1) having a spray head (11) extending in the axial direction; An insert core (2), wherein the insert core (2) is partially disposed in the nozzle head (11), and an axially penetrating flow channel (21) is disposed in the insert core (2); an atomization unit (3), the atomization unit (3) being arranged between the inner top of the upper shell (1) and the top of the insert (2), the atomization unit (3) being connected to the flow channel (21); The two ends of the atomizing unit (3) are respectively provided with an inlet (31) and an outlet (32), and a filter assembly (33) is provided between the inlet (31) and the outlet (32). The liquid transported from the flow channel (21) to the atomizing unit (3) can be converted into mist droplets under the action of the filter assembly (33) and released outward.

2. The spray structure according to claim 1, characterized in that: The spray head (11) is provided with a conical spray port (111), and the atomization unit (3) is located directly below the spray port (111).

3. The spray structure according to claim 1, characterized in that: The top of the insert (2) is provided with a mounting groove (22); The atomization unit (3) is seated in the installation groove (22), and a clamping piece (4) is provided between the outer periphery of the atomization unit (3) and the groove wall of the installation groove (22); A sealing ring (5) is provided between the lower bottom of the clamping member (4) and the inner bottom of the mounting groove (22).

4. The spray structure according to claim 1, characterized in that: The number of the outlets (32) is two and they are symmetrical about the center line of the atomization unit (3), and the angle α formed by the jet extension lines of the two outlets (32) is an obtuse angle.

5. The spray structure according to claim 1, characterized in that: The filter assembly (33) is located inside the atomization unit (3), and comprises a first microstructure unit (331), a second microstructure unit (332), and a third microstructure unit (333) which are sequentially arranged along the flow direction.

6. The spray structure according to claim 5, characterized in that: The atomization unit (3) comprises: First layer board (34); A second layer board (35), the second layer board (35) being arranged on the first layer board (34); The first microstructure unit (331) and the second microstructure unit (332) are integrally formed on the first layer plate (34), the third microstructure unit (333) is integrally formed on the second layer plate (35), and part of the third microstructure unit (333) is filled in part of the second microstructure unit (332).

7. A nasal spray device, characterized in that: The invention comprises a spray structure as described in any one of claims 1 to 6.

8. The nasal spray device according to claim 7, characterized in that: Also includes: A bottle body (6), wherein the bottle body (6) is used for filling liquid; A cover body (7), the cover body (7) being arranged at the bottle mouth of the bottle body (6), the cover body (7) being slidably matched with the upper shell (1); A pressure pump assembly (8), wherein the pressure pump assembly (8) is partially disposed in the bottle body (6), and the pressure pump assembly (8) is slidably and sealingly connected to the bottom of the insert (2); An infusion tube (9), the infusion tube (9) being arranged below the pressure pump assembly (8) and extending to the inner bottom of the bottle body (6).

9. The nasal spray device according to claim 8, characterized in that The bottle body (6) is made of a transparent material; or a window is provided on the side wall of the bottle body (6).

10. The nasal spray device according to claim 8, characterized in that The lower end of the infusion tube (9) is connected to a hose (10).

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