An atomizer and spray nozzle assembly

Abstract

The present application relates to a kind of atomizer and spray nozzle assembly, including atomizer, rubber plug and spray nozzle assembly;Atomizer center is provided with an atomizer inner cavity, atomizer inner cavity inside is uniformly distributed with multiple atomizer grooves, atomizer outer surface circumferential direction is provided with a radial boss, inner cavity front position is provided with multiple oblique cut atomizer cavities, atomizer outer surface head is also formed a front end;Rubber plug is inserted into atomizer inner cavity;Spray nozzle assembly inside center is provided with a longitudinally arranged nozzle inner cavity, nozzle inner cavity inner wall is uniformly distributed with multiple nozzle grooves, the top of inner cavity is provided with a nozzle cavity, the head center of the nozzle cavity has a fine hole.The device is used in cooperation with needle tube, so that the liquid medicine is in filling process, transportation process, push rod in use process reaches the set value when push force, needle tube inner cavity is always in vacuum state, and there is no liquid leakage, overflow phenomenon.

Description

Technical Field

[0001] This invention relates to the field of hospital consumables technology, and in particular to an atomizer and spray nozzle assembly. Background Technology

[0002] Pre-filled syringes are a new type of pharmaceutical packaging developed abroad in the 1990s. After more than a decade of widespread use, they have played a significant role in preventing the spread of infectious diseases and advancing the medical field. Pre-filled syringes are mainly used for packaging and storing high-end drugs for direct injection or for surgical irrigation in ophthalmology, otology, orthopedics, and for vaccination.

[0003] Existing pre-filled syringes use subcutaneous injection, which causes pain and harm to patients and recipients, often resulting in psychological trauma. Due to the widespread use of vaccination in recent years, this invention uses a nasal spray to directly spray the medication into the patient's nasal cavity, thereby reducing the patient's pain and discomfort. Summary of the Invention

[0004] The purpose of this invention is to ensure that the inner cavity of the syringe remains in a vacuum state during drug filling, transportation, and when not in use, so as to prevent leakage or overflow.

[0005] Specifically, an atomizer and spray nozzle assembly are provided, characterized in that,

[0006] Includes atomizer, rubber stopper and nozzle assembly;

[0007] The atomizer has an atomizer cavity in the center, and multiple atomizer grooves are evenly distributed inside the atomizer cavity. A radial boss is provided on the outer surface of the atomizer in the circumferential direction. Multiple atomizer cavities with oblique cuts are provided at the front of the inner cavity. A front end is also formed on the outer surface of the atomizer.

[0008] The rubber stopper is inserted into the inner cavity of the atomizer. The front end of the rubber stopper has an umbrella-shaped protrusion, the outer wall has a radial protrusion in the circumferential direction, the outer wall has multiple longitudinal cuts in the circumferential direction, and the rear end has a cylinder with a radial groove. The radial protrusion fits snugly against the inner wall of the inner cavity.

[0009] The nozzle assembly has a longitudinally oriented nozzle cavity at its center. Multiple nozzle grooves are evenly distributed on the inner wall of the nozzle cavity. A nozzle air cavity is provided at the top of the cavity, and the head of the nozzle air cavity has a fine hole at its center.

[0010] Furthermore, the nozzle cavity is umbrella-shaped.

[0011] Furthermore, the angle of the oblique cut in the atomizer cavity is controlled between 23° and 179°.

[0012] Furthermore, the radial boss is a hemispherical or conical protrusion structure, and the maximum radial outer diameter of the radial boss 4.3 is controlled at 7.0±1mm.

[0013] Furthermore, the rubber stopper is made of nitrile, silicone, natural rubber, TPE, TPU or PVC elastomer.

[0014] Furthermore, the radial protrusions are hemispherical or conical protrusion structures.

[0015] Furthermore, the longitudinal incision can be arc-shaped, square, or any other shape; the width of the longitudinal incision is controlled within 2.0 ± 1.0 mm.

[0016] Furthermore, the umbrella-shaped boss is a conical or arc-shaped protrusion structure; the cross-sectional angle of the umbrella-shaped boss 5.1 is controlled at 142°±37.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. A disposable pre-sealed nasal spray device, the technical solution of which is as follows: it includes a push rod, a syringe, a piston, the inner cavity of the syringe is equipped with the push rod, a limiter is provided between the bottom of the syringe and the bottom of the push rod, the piston is installed at the front end of the push rod, and a liquid outlet is provided at the front end of the syringe; liquid medicine is filled between the piston and the liquid outlet, the nebulizer is provided at the front end of the syringe, the rubber stopper is provided in the inner cavity of the nebulizer, the spray nozzle assembly is provided at the upper outlet of the nebulizer, and the protective cap is fitted on the upper part of the spray nozzle assembly.

[0019] 2. After using the structure of this invention, the solute is filled into the inner cavity of the syringe, packaged, sterilized, and ready for market. During the drug filling process and transportation, when the push rod does not reach the set value, the rubber stopper and the front end of the syringe are in a sealed state, and the inner cavity of the syringe is always in a vacuum state, which effectively controls the leakage of the product; when it is needed, the protective cap is removed, the push rod is pushed forward, and the inner cavity of the syringe forms a forward pushing force. The drug flows to the outlet of the syringe with the pushing force, and the drug pushes open the rubber stopper. The drug flows out of the closed gap between the front end of the syringe and the rubber stopper, and the drug flows into the nebulizer through the cut and groove of the rubber stopper. Finally, it is sprayed out in a mist form through the fine holes in the inner cavity of the spray nozzle assembly. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the device after it has been assembled in the syringe.

[0021] Figure 2 This is a cross-sectional view of the atomizer.

[0022] Figure 3 This is a cross-sectional view of the rubber stopper.

[0023] Figure 4This is a cross-sectional view of the spray nozzle assembly.

[0024] Figure 5 Cross-sectional view of the atomizer and its rubber stopper assembly. Detailed Implementation

[0025] The present invention will be further described below with reference to specific accompanying drawings and embodiments.

[0026] like Figure 1-5 As shown: An atomizer and spray nozzle assembly, including an atomizer 4, a rubber stopper 5 and a spray nozzle assembly 6; a limiter 8 and a cap 7;

[0027] The atomizer 4 has an atomizer cavity 4.1 at its center. The atomizer cavity 4.1 has multiple atomizer grooves 4.2 evenly distributed inside. The outer surface of the atomizer has a radial boss 4.3 in the circumferential direction. The front part of the cavity has multiple atomizer cavities 4.4 with oblique cuts. The oblique cut angle of the atomizer cavity 4.4 is controlled between 23° and 179°. The head of the atomizer's outer surface also forms a front end 4.5.

[0028] The rubber stopper 5 is inserted into the inner cavity 4.1 of the atomizer. The rubber stopper 5 is made of nitrile, silicone, natural rubber, TPE, TPU or PVC elastomer.

[0029] The rubber stopper 5 has an umbrella-shaped protrusion 5.1 at its front end, a radial protrusion 5.2 on its outer circumference, multiple longitudinal cuts 5.3 on its outer circumference, and a cylinder 5.5 with radial grooves at its rear end 5.4. The radial protrusion 5.2 fits snugly against the inner wall of the atomizer cavity 4.1. The radial protrusion 5.2 is a hemispherical or conical protrusion structure.

[0030] The longitudinal cut 5.3 can be arc-shaped, square, or any other shape; the width of the longitudinal cut is controlled within 2.0 ± 1.0 mm.

[0031] The umbrella-shaped boss 5.1 is a conical or arc-shaped protrusion structure; the cross-sectional angle of the umbrella-shaped boss 5.1 is controlled at 142°±37.

[0032] The nozzle assembly 6 has a longitudinally oriented nozzle cavity 6.1 at its center. The inner wall of the nozzle cavity 6.1 is evenly distributed with multiple nozzle grooves 6.2. A nozzle cavity 6.3 is provided at the top of the cavity. The nozzle cavity 6.3 has a fine hole 6.4 at the center of its head. The nozzle cavity 6.3 is umbrella-shaped.

[0033] The radial boss 4.3 is a hemispherical or conical protrusion structure, and the maximum radial outer diameter of the radial boss 4.3 is controlled at 7.0±1mm.

[0034] The needle tube 2 has a longitudinally opened inner cavity 2.1 at its center, and a liquid outlet 2.2 at the front end of the inner cavity 2.1. A radial boss 2.3 is provided on the outer surface in the circumferential direction. The outer surface of the needle tube 2 also includes a front end 2.4.

[0035] Implementation process:

[0036] When the atomizer 4 and the nozzle assembly 6 are assembled, the groove and the boss are positioned to match each other. When the atomizer 4 is inserted into the nozzle cavity 6.1, the radial boss 4.3 of the atomizer is inserted into the nozzle groove 6.2 of the nozzle assembly cavity, thus achieving structural locking between the atomizer and the nozzle assembly. The structural matching and fixing method of the nozzle groove 6.2 and the boss 4.3 avoids the phenomenon of rotation after assembly. Moreover, after fixing, the airtightness is good, which can effectively control the overflow phenomenon.

[0037] When the rubber stopper 5 is assembled with the atomizer, when the rubber stopper 5 is inserted into the inner cavity 4.1 of the atomizer, the radial protrusion 5.2 of the rubber stopper fits against the inner wall of the inner cavity of the atomizer.

[0038] When the needle tube 2 is engaged with the nebulizer 4 and the rubber stopper 5, the radial boss 2.3 and the nebulizer groove 4.2 are positioned to match each other. When the needle tube 2 is inserted into the inner cavity 4.1 of the nebulizer, structural locking is achieved. The structural fixing method of the nebulizer groove 4.2 and the radial boss 2.3 locks the position of the front end 2.4 of the needle tube 2 in the inner cavity 4.1 of the nebulizer, and also ensures that the front end 2.4 of the needle tube can be completely fitted with the umbrella-shaped boss 5.1 of the rubber stopper 5. After completion, the liquid outlet 2.2 of the needle tube 2 is in a sealed state, which can effectively control the overflow phenomenon.

[0039] The syringe 2 has an inner cavity 2.1, with a liquid outlet 2.2 at the front end. A piston head 3 is fitted onto the front of the push rod 1. The assembled push rod 1 is inserted into the inner cavity 2.1 of the syringe 2, and the medication is filled in the cavity between the piston head and the liquid outlet. The push rod 1 is pushed forward in the inner cavity of the syringe 2, and the medication flows forward towards the liquid outlet 2.2 with the pushing pressure. As the medication is pushed forward, the umbrella-shaped protrusion 5.1 of the rubber stopper is pushed open, and the medication flows out of the closed seam between the front end 2.4 of the syringe and the front end 5.1 of the rubber stopper. The medication flows through the longitudinal cut 5.3 of the rubber stopper into the radial groove 5.5 of the rear end 5.4 of the rubber stopper. The medication flows through the nebulizer cavity 4.4 of the nebulizer with an oblique cut into the nebulizer into the front end 4.5 of the nebulizer. The medication then flows into the umbrella-shaped nozzle cavity 6.3 of the spray nozzle assembly. Finally, the medication is sprayed out in a mist from the fine hole 6.4 at the top of the umbrella-shaped nozzle cavity 6.3. The umbrella-shaped nozzle cavity 6.3 effectively controls the flow direction of the liquid medicine, forming a vortex, so that the liquid medicine is finally sprayed out of the fine hole in the form of umbrella-shaped mist particles 6.4.

[0040] Through the cooperation of the nebulizer, rubber stopper, and syringe, the syringe cavity remains in a vacuum state when the push rod does not reach the set value during the filling, transportation, and use of the medicine, preventing leakage or overflow.

[0041] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An atomizer and spray nozzle assembly, characterized in that, Includes an atomizer (4), a rubber stopper (5), and a nozzle assembly (6); The atomizer (4) has an atomizer cavity (4.1) in the center, and multiple atomizer grooves (4.2) are evenly distributed inside the atomizer cavity (4.1). A radial boss (4.3) is provided on the outer surface of the atomizer in the circumferential direction. Multiple atomizer cavities (4.4) with oblique cuts are provided at the front of the cavity. A front end (4.5) is also formed on the head of the outer surface of the atomizer. The rubber stopper (5) is inserted into the inner cavity (4.1) of the atomizer. The front end of the rubber stopper (5) is provided with an umbrella-shaped protrusion (5.1). The front end (2.4) of the needle tube can be completely fitted with the umbrella-shaped protrusion (5.1). A radial protrusion (5.2) is provided in the circumferential direction of the outer wall. Multiple longitudinal cuts (5.3) are provided in the circumferential direction of the outer wall. A cylinder (5.5) with a radial groove is provided at the rear end (5.4). The radial protrusion (5.2) is fitted and assembled with the inner wall of the inner cavity (4.1). The nozzle assembly (6) has a longitudinally opened nozzle cavity (6.1) in the center. The inner wall of the nozzle cavity (6.1) is evenly distributed with a plurality of nozzle grooves (6.2). A nozzle cavity (6.3) is provided at the top of the cavity. The nozzle cavity (6.3) has a fine hole (6.4) at the center of its head. As the push rod (1) moves forward in the inner cavity of the syringe (2), the liquid in the syringe (2) flows forward to the outlet (2.2) with the pushing pressure. As the liquid moves forward, the umbrella-shaped protrusion (5.1) of the rubber stopper is pushed open, and the liquid flows out of the closed seam between the front end of the syringe (2.4) and the umbrella-shaped protrusion (5.1) at the front end of the rubber stopper. The liquid flows through the longitudinal cut (5.3) of the rubber stopper into the radial groove at the rear end (5.4) of the rubber stopper. The liquid flows through the nebulizer cavity (4.4) of the nebulizer oblique cut into the nebulizer into the front end (4.5) of the nebulizer. The liquid then flows into the nozzle cavity (6.3) of the spray nozzle assembly. Finally, the liquid is sprayed out in a mist from the fine hole (6.4) at the top of the nozzle cavity (6.3).

2. The atomizer and spray nozzle assembly as described in claim 1, characterized in that, The nozzle cavity (6.3) is umbrella-shaped.

3. The atomizer and spray nozzle assembly as described in claim 1, characterized in that, The angle of the oblique cut of the atomizer cavity (4.4) is controlled between 23° and 179°.

4. The atomizer and spray nozzle assembly as described in claim 1, characterized in that, The radial boss (4.3) is a hemispherical or conical protrusion structure, and the maximum radial outer diameter of the radial boss (4.3) is controlled at 7.0±1mm.

5. The atomizer and spray nozzle assembly as described in claim 1, characterized in that, The rubber stopper (5) is made of nitrile, silicone, natural rubber, TPE, TPU or PVC elastomer.

6. The atomizer and spray nozzle assembly as described in claim 1, characterized in that, The radial protrusion (5.2) is a hemispherical or conical protrusion structure.

7. The atomizer and spray nozzle assembly as described in claim 1, characterized in that, The longitudinal cut (5.3) can be arc-shaped, square, or any shape; the width of the longitudinal cut is controlled within 2.0±1.0 mm.

8. The atomizer and spray nozzle assembly as described in claim 1, characterized in that, The umbrella-shaped boss (5.1) is a conical or arc-shaped protrusion structure; the cross-sectional angle of the umbrella-shaped boss (5.1) is controlled at 142°±37.

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