Nasal and aural nebulization device

Abstract

The utility model discloses an ear-nose-throat atomization dosing device, including atomizer and medicine delivery pipe, and the medicine delivery pipe's medicine inlet end is communicated with the medicine outlet end of atomizer and is installed, still include: gas heater, its top side in the medicine outlet end of atomizer and with the fixed connection of atomizer's outer wall, the soft pad, its inside hollow forms and forms the flow guide groove, the middle position of soft pad one end fixedly penetrates and installs the pressure limiting valve, and the air inlet end of pressure limiting valve and the exhaust end of gas heater are communicated and installed, be equipped with exhaust mechanism in the flow guide groove. This improved ear-nose-throat atomization dosing device uses, can under the condition that almost does not influence medicine delivery pipe bending deformation, synchronous to atomization medicine for sustained heating treatment, to make the atomization medicine of medicine delivery pipe discharge always maintain in the warm state, can greatly reduce atomization medicine in with patient ear-nose-throat inside contact to patient's irritability, not easy to cause patient to feel uncomfortable.

Description

Technical Field

[0001] This utility model relates to the technical field of ear, nose and throat drug delivery devices, and more particularly to ear, nose and throat nebulized drug delivery devices. Background Technology

[0002] ENT nebulization is a common treatment method, mainly used to treat various acute and chronic pharyngitis, rhinitis and other diseases. Specifically, it uses a nebulizer to convert the liquid medicine into tiny particles, which can be inhaled deep into the respiratory tract by the patient, thereby exerting a local effect.

[0003] Existing ENT nebulized drug delivery devices typically use disposable infusion tubing and masks or spray nozzles to deliver medication directly to the ear, nose, and throat. Because the infusion tubing is relatively long, the nebulized medication is often at a low temperature, which can be quite irritating to the patient's ear, nose, and throat when in contact with the patient, easily causing discomfort. Utility Model Content

[0004] The purpose of this invention is to provide an ENT nebulized drug delivery device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an ear, nose, and throat nebulization drug delivery device, comprising a nebulizer and a drug delivery tube, wherein the drug inlet end of the drug delivery tube is connected to the drug outlet end of the nebulizer.

[0006] Also includes:

[0007] A gas heater is located on the top side of the drug discharge end of the nebulizer and is fixedly connected to the outer wall of the nebulizer;

[0008] A soft pad has a hollow interior forming a flow channel. A pressure limiting valve is fixedly installed through the middle of one end of the soft pad, and the inlet end of the pressure limiting valve is connected to the exhaust end of the gas heater. An exhaust mechanism is provided in the flow channel to input the gas in the flow channel into the gas heating chamber of the gas heater.

[0009] Preferably, an elastic ring is fixedly installed at the other end of the soft pad, and the inner ring wall of the elastic ring is interference-fitted with the outer peripheral wall of the drug delivery tube.

[0010] Preferably, the exhaust mechanism includes two intake pipes, which are symmetrically fixed in the guide groove. One end of the intake pipe is clearance-fitted with the inner wall of the guide groove, and the other end of the intake pipe is connected to the corresponding air inlet of the gas heater through a pipe interface.

[0011] Preferably, the inner wall of the soft pad is provided with an adsorption mechanism for adsorption and fixation between the drug delivery tube and the soft pad;

[0012] The adsorption mechanism includes several adsorption holes, which are opened on the inner arc wall of the soft pad and communicate with the interior of the guide groove. The spacing between two adjacent adsorption holes is equal, and a piston plate is slidably installed in the adsorption hole.

[0013] Preferably, the cross-section of the adsorption hole is cross-shaped, and a spring is provided inside it. The two ends of the spring are fixedly connected to the corresponding piston plate and the inner wall of the corresponding adsorption hole opening.

[0014] Preferably, a soft ring is fixedly installed on the inner wall of the other end opening of the adsorption hole, and the side of the soft ring near the drug delivery tube is in contact with the outer peripheral wall of the drug delivery tube.

[0015] This utility model has the following beneficial effects:

[0016] When this improved ENT nebulizer is used, the nebulized medication can be continuously heated simultaneously with almost no impact on the bending deformation of the delivery tube. This ensures that the nebulized medication discharged from the delivery tube is always kept warm, which greatly reduces the irritation to the patient when the nebulized medication comes into contact with the inside of the patient's ear, nose, and throat, and is less likely to cause the patient to feel uncomfortable. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the overall structure of this utility model;

[0019] Figure 2 This is a bottom view of the internal structure of the flexible board of this utility model;

[0020] Figure 3 This is a perspective view of the gas heater and part of the suction pipe of this utility model;

[0021] Figure 4 This is a right view of the internal structure of the flexible board of this utility model;

[0022] Figure 5 This utility model Figure 4 Enlarged view of the structure at point A in the middle.

[0023] In the diagram: 1. Nebulizer; 2. Drug delivery tube; 3. Gas heater; 4. Soft pad; 5. Guide channel; 6. Pressure limiting valve; 7. Exhaust mechanism; 71. Inhalation tube; 72. Pipe interface; 8. Adsorption mechanism; 81. Adsorption hole; 82. Piston plate; 83. Spring; 84. Soft ring; 9. Elastic ring. Detailed Implementation

[0024] To make the technical solution and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] This utility model provides a technical solution: (Refer to...) Figure 1 - Figure 3 The present invention discloses an ENT nebulization drug delivery device, which includes a nebulizer 1 and a drug delivery tube 2, wherein the drug inlet end of the drug delivery tube 2 is connected to the drug outlet end of the nebulizer 1.

[0026] Also includes:

[0027] Gas heater 3 is located on the top side of the drug discharge end of nebulizer 1 and is fixedly connected to the outer wall of nebulizer 1;

[0028] A soft pad 4 has a hollow interior forming a flow channel 5. A pressure relief valve 6 is fixedly installed through the middle of one end of the soft pad 4, and the inlet end of the pressure relief valve 6 is connected to the exhaust end of the gas heater 3. An exhaust mechanism 7 is provided inside the flow channel 5 to input the gas in the flow channel 5 into the gas heating chamber of the gas heater 3.

[0029] In this embodiment, when using the improved ENT nebulizer, please refer to... Figure 1 As shown, firstly, the operator connects the inlet end of the drug delivery tube 2 to the outlet end of the nebulizer 1 according to the existing usage method of the drug delivery tube 2. Then, the soft pad 4 is attached to the drug delivery tube 2. Finally, the outlet end of the drug delivery tube 2 is connected to the mask or spray head, and the assembly of the device is completed.

[0030] Please refer to Figure 1-3As shown, after the device is assembled, the gas heater 3 is activated (the gas heater 3 mainly consists of a shell, a gas heating mechanism, a storage chamber, and a gas pump). The activated gas heater 3 continuously draws gas from the guide channel 5 through the exhaust mechanism 7, pumping the gas into the storage chamber within the gas heating mechanism for heating. This ensures the gas in the storage chamber is maintained at the corresponding temperature. As gas flows out of the guide channel 5, the gas pressure within the guide channel 5 continuously decreases. Once the negative pressure intensity in the guide channel 5 reaches a threshold, a sufficient pressure difference is generated across the pressure limiting valve 6. At this point, the hot gas in the storage chamber continuously flows through the pressure limiting valve 6 into the guide channel 5, filling the guide channel 5 with the corresponding amount of gas, which is then used for drug delivery. Tube 2 continuously exchanges heat with the gas in the guide channel 5 through the wall of the soft pad 4 (the inner arc wall of the soft pad 4 can be made of thermally conductive material such as thermally conductive plastic or thermally conductive silicone to enhance the heat exchange rate), thus maintaining the temperature of the drug delivery tube 2 within the corresponding range. Then, the nebulizer 1 is activated, injecting the atomized medicine into the drug delivery tube 2, which flows along the drug delivery tube 2 and is finally discharged into the mask or spray head. During the process of the atomized medicine flowing in the drug delivery tube 2, the atomized medicine and the drug delivery tube 2 continuously complete heat exchange, thus keeping the atomized medicine discharged into the mask or spray head always in a warm state, which can greatly reduce the irritation to the patient when the atomized medicine comes into contact with the inside of the patient's ear, nose and throat, and is less likely to cause the patient to feel uncomfortable.

[0031] In a further preferred embodiment of this utility model, such as Figure 1 As shown, an elastic ring 9 is fixedly installed at the other end of the soft pad 4, and the inner ring wall of the elastic ring 9 is interference-fitted with the outer peripheral wall of the drug delivery tube 2.

[0032] In this embodiment, please refer to Figure 1 As shown, when connecting the drug outlet end of the drug delivery tube 2 to the face mask or spray head, the drug outlet end of the drug delivery tube 2 is passed through the elastic ring 9. Subsequently, due to the contraction and deformation of the elastic ring 9, the inner ring wall of the elastic ring 9 and the tube wall of the drug delivery tube 2 are tightly pressed together, generating a frictional force, which completes the fixation of the soft plate end to the drug delivery tube 2, thereby making the soft plate straight and thus making the soft plate fit against the outer wall of the drug delivery tube 2.

[0033] In a further preferred embodiment of this utility model, such as Figure 2 - Figure 4 As shown, the exhaust mechanism 7 includes two intake pipes 71, which are symmetrically fixed in the guide groove 5. One end of the intake pipe 71 is clearance-fitted with the inner wall of the guide groove 5, and the other end of the intake pipe 71 is connected to the corresponding air inlet of the gas heater 3 through the pipe interface 72.

[0034] In this embodiment, please refer to Figure 2 and Figure 4As shown, when the gas heater 3 draws gas from the guide channel 5, the gas away from the end of the soft plate away from the pressure relief valve 6 is drawn through the suction pipe 71, thereby forming an airflow in the guide channel 5 that flows from the pressure relief valve 6 to the suction end of the suction pipe 71, so as to push the lower temperature gas in the guide channel 5 into the suction pipe 71 and accelerate the mixing rate of the gas in the guide channel 5.

[0035] In a further preferred embodiment of this utility model, such as Figure 4 and Figure 5 As shown, the inner wall of the soft pad 4 is provided with an adsorption mechanism 8 for adsorption and fixation between the drug delivery tube 2 and the soft pad 4.

[0036] The adsorption mechanism 8 includes a plurality of adsorption holes 81, which are opened on the inner arc wall of the soft pad 4 and communicate with the interior of the guide groove 5. The spacing between two adjacent adsorption holes 81 is equal, and a piston plate 82 is slidably installed in the adsorption hole 81.

[0037] In this embodiment, please refer to Figure 1 , Figure 4 and Figure 5 As shown, when a negative pressure is formed in the guide channel 5, an adsorption force can be applied to the piston plate 82, causing the piston plate 82 to move in the direction of the guide channel 5, thereby forming a negative pressure cavity in the adsorption hole 81. A constraint force is applied to the soft plate at various positions, so that the soft plate is tightly attached to the outer wall of the drug delivery tube 2, and the soft plate will not separate from the drug delivery tube 2 due to the bending deformation of the drug delivery tube 2, thus affecting the heat conduction between the soft plate and the drug delivery tube 2.

[0038] In a further preferred embodiment of this utility model, such as Figure 5 As shown, the cross-section of the adsorption hole 81 is cross-shaped, and a spring 83 is provided inside it. The two ends of the spring 83 are fixedly connected to the corresponding piston plate 82 and the inner wall of the opening at one end of the corresponding adsorption hole 81, respectively.

[0039] In this embodiment, please refer to Figure 5 As shown, when the device stops running, the piston plate 82 automatically moves in the reverse direction to reset due to the push of the spring 83 on the piston plate 82, without requiring any other operation from the operator, which facilitates the use of the device.

[0040] In a further preferred embodiment of this utility model, such as Figure 5 As shown, a soft ring 84 is fixedly installed on the inner wall of the other end of the adsorption hole 81, and the side of the soft ring 84 near the drug delivery tube 2 is in contact with the outer peripheral wall of the drug delivery tube 2.

[0041] In this embodiment, please refer to Figure 2 and Figure 5As shown, during the process of bonding the soft plate with the drug delivery tube 2, the soft ring 84 will first come into contact with the outer wall of the drug delivery tube 2. As the soft ring 84 contracts and deforms, it forms a surface that is tightly attached to the outer peripheral wall of the drug delivery tube 2, thereby sealing the gap between the adsorption pore 81 and the outer peripheral wall of the drug delivery tube 2 to enhance the stability of adsorption.

[0042] Working principle: When using this improved ENT nebulizer, the operator first connects the inlet end of the infusion tube 2 to the outlet end of the nebulizer 1 according to the existing usage of the infusion tube 2. Then, the soft pad 4 is attached to the infusion tube 2, and the outlet end of the infusion tube 2 is passed through the elastic ring 9. At this time, due to the contraction and deformation of the elastic ring 9, the inner ring wall of the elastic ring 9 is tightly attached to the tube wall of the infusion tube 2, generating a frictional force, which completes the fixation of the soft pad end to the infusion tube 2. This makes the position of the elastic ring 9 on the infusion tube 2 stable when not subjected to large external forces. Pushing the elastic ring 9 can adjust the position of the elastic ring 9 on the infusion tube 2. Finally, the outlet end of the infusion tube 2 is connected to the mask or spray head to complete the assembly of the device.

[0043] After the device is assembled, the operator pulls the drug delivery tube 2, tautling both the tube and the soft pad 4. At this point, the soft pad 4 is in close contact with the drug delivery tube 2. Then, the gas heater 3 is activated, continuously drawing gas from the end of the soft plate furthest from the pressure relief valve 6 through the extraction tube. The drawn gas flows directly into the storage chamber within the heating mechanism for heating, ensuring the gas in the storage chamber remains at the corresponding temperature. As gas leaks from the guide channel 5, the pressure within it continuously decreases. Once the negative pressure in the guide channel 5 reaches a threshold, the pressure relief valve... Sufficient pressure difference is generated at both ends of 6. At this time, the hot gas in the storage chamber continuously flows into the guide groove 5 through the pressure limiting valve 6, thereby forming an airflow in the guide groove 5 that flows from the pressure limiting valve 6 to the suction end of the suction pipe 71. This pushes the lower temperature gas in the guide groove 5 into the suction pipe 71 and accelerates the mixing of the gas in the guide groove 5. Ultimately, the guide groove 5 is always filled with gas of the corresponding temperature. At the same time, the drug delivery tube 2 continuously exchanges heat with the gas in the guide groove 5 through the pad wall of the soft pad 4, so that the temperature of the drug delivery tube 2 is maintained within the corresponding range.

[0044] After the negative pressure cavity is formed in the guide channel 5, an adsorption force can be applied to the piston plate 82 to counteract the thrust of the spring 83 on the piston plate 82, so that the piston plate 82 moves in the direction of the guide channel 5, thereby forming a negative pressure cavity in the adsorption hole 81. A constraint force is applied to the soft plate at various positions so that the soft plate is tightly attached to the outer wall of the drug delivery tube 2. At this time, the drug delivery tube 2 and the soft pad 4 can be bent and deformed freely without affecting the adhesion between the drug delivery tube 2 and the soft pad 4.

[0045] After the infusion tube 2 is heated, the nebulizer 1 is activated to inject the atomized medicine into the infusion tube 2. The medicine flows along the infusion tube 2 and is finally discharged into the face mask or spray head. During the process of the atomized medicine flowing in the infusion tube 2, the atomized medicine and the infusion tube 2 continuously exchange heat, so that the atomized medicine discharged into the face mask or spray head is always kept at a warm state.

[0046] After the device is used and stops operating, some of the gas in the storage chamber of the gas heater 3 flows back into the guide groove 5 through the gap between the pump impeller and the housing, and through the pipe interface 72. This causes the negative pressure intensity in the guide groove 5 to gradually decrease. At this time, due to the push of the spring 83 on the piston plate 82, the piston plate 82 automatically moves in the opposite direction to reset.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An ear, nose and throat nebulized drug delivery device, comprising a nebulizer (1) and a drug delivery tube (2), wherein the drug inlet end of the drug delivery tube (2) is connected to the drug outlet end of the nebulizer (1); Its features are, Also includes: Gas heater (3) is located on the top side of the drug discharge end of the atomizer (1) and is fixedly connected to the outer wall of the atomizer (1); A soft pad (4) has a hollow interior forming a flow channel (5). A pressure limiting valve (6) is fixedly installed through the middle of one end of the soft pad (4), and the air inlet of the pressure limiting valve (6) is connected to the exhaust end of the gas heater (3). An exhaust mechanism (7) is provided in the flow channel (5) to input the gas in the flow channel (5) into the gas heating chamber of the gas heater (3).

2. The nebulized drug delivery device for the ear, nose, and throat according to claim 1, characterized in that: The other end of the soft pad (4) is fixedly equipped with an elastic ring (9), and the inner ring wall of the elastic ring (9) is interference-fitted with the outer peripheral wall of the drug delivery tube (2).

3. The nebulized drug delivery device for the ear, nose, and throat according to claim 2, characterized in that: The exhaust mechanism (7) includes two intake pipes (71), which are symmetrically fixed in the guide groove (5). One end of the intake pipe (71) is fitted with the inner wall of the guide groove (5) with a clearance, and the other end of the intake pipe (71) is connected to the corresponding air inlet of the gas heater (3) through the pipe interface (72).

4. The nebulized drug delivery device for the ear, nose, and throat according to claim 3, characterized in that: The inner wall of the soft pad (4) is provided with an adsorption mechanism (8) for adsorption and fixation between the drug delivery tube (2) and the soft pad (4); The adsorption mechanism (8) includes a plurality of adsorption holes (81), which are opened on the inner arc wall of the soft pad (4) and communicate with the interior of the guide groove (5), and the spacing between two adjacent adsorption holes (81) is equal. A piston plate (82) is slidably installed in the adsorption hole (81).

5. The nebulized drug delivery device for the ear, nose, and throat according to claim 4, characterized in that: The cross-section of the adsorption hole (81) is cross-shaped, and a spring (83) is provided inside it. The two ends of the spring (83) are fixedly connected to the corresponding piston plate (82) and the inner wall of the corresponding adsorption hole (81) opening at one end, respectively.

6. The nebulized drug delivery device for the ear, nose, and throat according to claim 5, characterized in that: A soft ring (84) is fixedly installed on the inner wall of the other end of the adsorption hole (81), and the side of the soft ring (84) close to the drug delivery tube (2) is in contact with the outer peripheral wall of the drug delivery tube (2).

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