Anti-backflow and anti-pollution eye atomizing device

Abstract

The utility model provides a kind of anti-reflux anti-pollution eye atomization dosing device, it is related to medical equipment technical field, including shell body, the inside of shell body is equipped with inner bin, the side surface of inner bin is equipped with atomization piece, the side surface of inner bin is equipped with dosing tube, the inner wall of dosing tube is equipped with strip slot, the end of dosing tube is treated with round angle, adopt dosing tube and strip slot, the shape of dosing tube is outer horn mouth shape, the hydrophobic material of dosing tube inner wall makes that the contact angle of atomization liquid and pipe wall increases, it is difficult to adhere on pipe wall and form liquid film, fundamentally reduce the possibility of liquid reflux, the strip slot of its inner wall can destroy the tension of continuous liquid film possibly formed in dosing tube inner wall, it is difficult for atomized liquid to gather into larger droplet and reflux under the action of gravity, to avoid atomized liquid backflow into inner bin, simultaneously, the end of dosing tube is treated with round angle, the rounded edge surface avoids atomization liquid accumulation in end.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to an anti-backflow and anti-pollution eye atomizing drug delivery device. Background Technology

[0002] According to patent document CN219743577U, a small ocular nebulizer for drug delivery is disclosed, comprising a main body and a nebulizer unit. The main body has a cavity for housing the nebulizer unit. The main body contains a circuit board and a conductive battery connected to the circuit board. A switch is mounted on the circuit board, with its cap located outside the main body. A nebulizer port is located outside the main body and communicates with the cavity. The nebulizer unit has a liquid inlet, which is detachably fitted with a liquid container. An nebulizer plate is mounted on the nebulizer unit, with one end communicating with the inner cavity of the liquid inlet and the other end outside the nebulizer unit. This invention allows for direct detachment of the nebulizer unit, facilitates the installation of the liquid container, and enables cleaning and disinfection of the nebulizer unit. It also allows for selective replacement of the nebulizer unit, avoiding the need for complete unit replacement. Furthermore, its compact size makes it highly portable.

[0003] The aforementioned documents and existing technologies have the following problems: Currently available ocular nebulizers lack effective backflow prevention measures, causing the nebulized medication to flow back and contaminate unused medication, affecting drug quality and therapeutic efficacy. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anti-backflow and anti-pollution eye atomizing drug delivery device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an anti-backflow and anti-pollution eye atomizing drug delivery device, comprising an outer shell, an inner material chamber inside the outer shell, an atomizing plate on the side of the inner material chamber, a drug delivery tube on the side of the inner material chamber, a strip-shaped groove on the inner wall of the drug delivery tube, rounded corners at the end of the drug delivery tube, an outer material chamber on the top surface of the inner material chamber, a lower cover on the bottom surface of the outer shell, a fixing shell on the bottom surface of the lower cover, a material discharge chamber inside the fixing shell, and a drug delivery tube in the shape of an outwardly flared mouth.

[0006] Preferably, the outer casing has a display screen on its side and a through hole on its side.

[0007] Preferably, the position of the atomizing plate corresponds to the position of the through hole, and the surface of the drug delivery tube is connected to the through hole.

[0008] Preferably, a battery is located inside the housing, and a circuit board is located inside the housing.

[0009] Preferably, the atomizing plate is electrically connected to the circuit board, and the position of the drug delivery tube corresponds to the position of the atomizing plate.

[0010] Preferably, the top surface of the inner hopper is provided with a liquid inlet pipe, and the outer hopper is connected to the inner hopper through the liquid inlet pipe.

[0011] Preferably, the top surface of the feeding hopper is magnetically connected to the bottom surface of the lower cover, and the bottom surface of the outer hopper is magnetically connected to the top surface of the inner hopper.

[0012] Beneficial effects In this invention, a drug delivery tube and a strip groove are used. The drug delivery tube serves as the output channel for the atomized drug solution. Its shape is an outwardly flared mouth. A hydrophobic polytetrafluoroethylene (PTFE) material is coated onto the inner wall of the drug delivery tube. The hydrophobic material on the inner wall increases the contact angle between the atomized drug solution and the tube wall, making it difficult for the solution to adhere to the tube wall and form a liquid film. This fundamentally reduces the possibility of drug backflow and also reduces the risk of drug residue causing contamination. The strip groove on the inner wall can disrupt the tension of the continuous liquid film that may form on the inner wall of the drug delivery tube, making it difficult for the atomized drug solution to converge into large droplets and flow back under gravity. This prevents the atomized drug solution from flowing back into the inner storage tank, preventing contamination of unused drug solution and ensuring drug quality. At the same time, the end of the drug delivery tube is rounded. The rounded edges prevent the atomized drug solution from accumulating at the end, further reducing the risk of drug backflow and contamination, and greatly improving the therapeutic effect and safety of ocular atomized drug delivery.

[0013] In this invention, a feeding hopper is used. The top surface of the feeding hopper is magnetically connected to the bottom surface of the lower cover, and it is securely installed inside the fixed shell. When the medicine in the outer hopper is used up, the feeding hopper can be easily removed from the bottom surface of the lower cover and then installed on the top surface of the inner hopper in the original position of the outer hopper using the magnetic connection. This allows for a quick supply of spare medicine, greatly improving the convenience of using the medicine dispenser and avoiding the impact on treatment progress and effect due to untimely replenishment of medicine. Attached Figure Description

[0014] Figure 1 This is an axonometric view of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a diagram of the internal structure of the present invention; Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0015] Legend: 1. Outer shell; 2. Inner material bin; 3. Outer material bin; 4. Atomizing plate; 5. Dosing tube; 6. Strip groove; 7. Fixing shell; 8. Discharge bin; 9. Display screen; 10. Liquid inlet pipe; 11. Through hole; 12. Battery; 13. Circuit board; 14. Lower cover. Detailed Implementation

[0016] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0017] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1: Reference Figure 1-4 A backflow-proof and contamination-proof ocular nebulizer includes an outer shell 1. The outer shell 1 serves as the external protective structure for the entire device, housing and securing the internal components, providing protection and support, ensuring that the components are not damaged by external physical forces during use, and maintaining the stability of the overall structure. A display screen 9 is located on the side of the outer shell 1, displaying various information such as dosage and device status, allowing users to intuitively understand the device's operation. Users can adjust the dosing parameters or check if the device is working properly based on the information on the display screen 9. A through hole 11 is provided on the side of the outer shell 1, with the position of the atomizing plate 4 corresponding to the position of the through hole 11, and the surface of the delivery tube 5 connected to the through hole 11. The through hole 11 is the channel through which the atomized medicine is sprayed out. It works in conjunction with the drug delivery tube 5 to ensure that the atomized medicine can be smoothly applied to the eyes, thus ensuring the smooth progress of the drug delivery process. The battery 12 is located inside the outer casing 1. The battery 12 provides power to the entire device, ensuring that all electronic components, such as the circuit board 13 and the atomizing plate 4, work normally. It is the power source for the operation of the device. The circuit board 13 is located inside the outer casing 1. The atomizing plate 4 is electrically connected to the circuit board 13. The circuit board 13 is the control core of the device. It controls the operation of the atomizing plate 4 according to the preset program to realize the atomization operation of the medicine. It is also responsible for processing other control commands, such as controlling the content displayed on the display screen 9. The drug delivery tube 5 is shaped like an outward flared mouth.

[0019] The outer casing 1 contains an inner chamber 2, which stores the medication flowing in from the outer chamber 3 through the inlet pipe 10. An atomizing plate 4 on its side atomizes the medication in the inner chamber 2, preparing it for eye administration. The inner chamber 2 provides temporary storage space for the medication, ensuring continuous atomization. The top surface of the inner chamber 2 has an inlet pipe 10 with a sharp end. The outer chamber 3 connects to the inner chamber 2 through the inlet pipe 10. The bottom surface of the outer chamber 3 is magnetically connected to the top surface of the inner chamber 2. Both the bottom surface of the outer chamber 3 and the top surface of the inner chamber 2 have magnetic bases, which magnetically fix the outer chamber 3 and inner chamber 2. The inner chamber 2 has an atomizing plate 4 on its side, which operates based on ultrasonic principles. When the circuit board 13 transmits electrical energy to the atomizing plate 4, the piezoelectric ceramic inside the atomizing plate 4... The material generates an inverse piezoelectric effect under the action of an electric field. The piezoelectric ceramic will generate mechanical vibration at the same frequency under the drive of a high-frequency voltage. Its vibration frequency is usually in the ultrasonic band. This high-frequency vibration is transmitted to the liquid medicine in the inner material chamber 2 that is in contact with the atomizing plate 4, generating a strong shear force on the surface of the liquid medicine. Under the action of this high-frequency vibration and shear force, the molecules on the surface of the liquid medicine overcome their own surface tension and are torn into tiny droplets. These tiny droplets are rapidly dispersed into tiny mist droplets under the action of the surrounding air, thereby realizing the conversion of liquid medicine into gaseous mist droplets and completing the atomization function.

[0020] The inner chamber 2 has a drug delivery tube 5 on its side, which is flared outwards to effectively prevent backflow when tilted. The position of the drug delivery tube 5 corresponds to the position of the atomizing plate 4. The inner wall of the drug delivery tube 5 has a strip groove 6, and the end of the drug delivery tube 5 is rounded. The drug delivery tube 5 serves as the output channel for the atomized drug solution, delivering the atomized drug solution to the eye. Its inner wall is coated with a hydrophobic polytetrafluoroethylene coating to increase the contact angle between the atomized drug solution and the tube wall, reducing the risk of drug backflow and residual contamination. The strip groove 6 on the inner wall can disrupt the liquid film tension, preventing the atomized drug solution from agglomerating into large droplets and flowing back, thus avoiding contamination of unused drug solution. The rounded end prevents the atomized drug solution from accumulating at the end, further reducing the risk of backflow and contamination, and ensuring the safety and effectiveness of drug delivery. The inner hopper 2 has an outer hopper 3 on its top surface, and the outer casing 1 has a lower cover 14 on its bottom surface. The lower cover 14 has a fixed shell 7 on its bottom surface. The fixed shell 7 is used to accommodate the discharge hopper 8, providing structural support and fixation for the discharge hopper 8, and ensuring the stability of the discharge hopper 8 in standby mode. The discharge hopper 8 is located inside the fixed shell 7. The outlets of the discharge hopper 8 and the outer hopper 3 are sealed by rubber sealing plugs to ensure that the discharge hopper 8 is sealed when not in use. The liquid channel between the outer hopper 3 or the discharge hopper 8 and the inner hopper 2 is connected by piercing the sealing plug through the sharp liquid inlet pipe 10. The top surface of the discharge hopper 8 is magnetically connected to the bottom surface of the lower cover 14. Both the top surface of the discharge hopper 8 and the bottom surface of the lower cover 14 are provided with magnetic seats, and the discharge hopper 8 is fixed by the corresponding magnetic seats.

[0021] When using the anti-backflow and anti-contamination eye nebulizer, the outer chamber 3 is securely connected to the top surface of the inner chamber 2 via a magnetic base. The rubber sealing plug of its outlet has been pierced by the sharp inlet pipe 10, allowing the liquid medication to flow into the inner chamber 2 through the inlet pipe 10. The inner chamber 2 stores the liquid medication, which is then atomized by the atomizing plate 4 on the side. When the atomization program is started, the atomizing plate 4 works based on the ultrasonic principle, converting the liquid medication in the inner chamber 2 into tiny droplets. These droplets are sprayed out through the delivery tube 5 corresponding to the position of the atomizing plate 4. The hydrophobic coating of polytetrafluoroethylene on the inner wall of the delivery tube 5 and the strip groove 6 work together to prevent backflow and contamination of the liquid medication. The rounded ends prevent the liquid medication from accumulating. When the liquid medication in the outer chamber 3 is used up, the lower chamber 8 inside the fixed shell 7 is removed using the magnetic base, and then the lower chamber 8 is installed on the top surface of the inner chamber 2. After its sealing plug is pierced by the inlet pipe 10, the liquid medication can continue to be supplied to the inner chamber 2, and the eye nebulization delivery can continue. Specific Implementation Example 2: A backflow-proof and pollution-proof eye atomizing drug delivery device, based on the basic structure in Specific Embodiment 1, further discloses the following: an elastic band is added to one side of the fixed shell 7, and the elastic band is equipped with Velcro, while a fixing ring is set on the other side of the fixed shell 7. In use, the elastic band is wrapped around the feeding bin 8, then passed through the fixing ring, and finally fixed by Velcro, thereby further reinforcing the feeding bin 8, effectively ensuring the stability of the feeding bin 8 in the standby state, and avoiding the impact of shaking, displacement, etc. on the normal operation of the equipment and the storage of standby medicine.

[0023] In summary: The device employs a drug delivery tube 5 and a strip groove 6. The drug delivery tube 5 serves as the output channel for the atomized drug solution. Its shape is an outwardly flared mouth. A hydrophobic polytetrafluoroethylene (PTFE) material is applied to the inner wall of the drug delivery tube 5 through a coating. The hydrophobic material on the inner wall increases the contact angle between the atomized drug solution and the tube wall, making it difficult for the drug solution to adhere to the tube wall and form a liquid film. This fundamentally reduces the possibility of drug solution backflow and also reduces the risk of drug solution residue causing contamination. The strip groove 6 on the inner wall can disrupt the tension of the continuous liquid film that may form on the inner wall of the drug delivery tube 5, making it difficult for the atomized drug solution to converge into large droplets and backflow under gravity. This prevents the atomized drug solution from flowing back into the inner storage hopper 2, preventing contamination of unused drug solution and ensuring drug quality. At the same time, the end of the drug delivery tube 5 is rounded. The rounded edges prevent the atomized drug solution from accumulating at the end, further reducing the risk of drug solution backflow and contamination, and greatly improving the therapeutic effect and safety of ocular atomized drug delivery. The device employs a feeding chamber 8, which is magnetically connected to the bottom surface of the lower cover 14 and securely installed inside the fixed shell 7. When the medicine in the outer chamber 3 is depleted, the feeding chamber 8 can be easily removed from the bottom surface of the lower cover 14 and then magnetically attached to the original position of the outer chamber 3 on the top surface of the inner chamber 2. This allows for a rapid supply of spare medicine, greatly improving the convenience of using the medication dispenser and preventing the treatment progress and effect from being affected by untimely replenishment of medicine.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] 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 preferred examples and are not intended to limit the 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. A backflow-proof and pollution-proof ocular nebulizer, comprising a housing (1), characterized in that: The outer shell (1) has an inner material chamber (2) inside, and an atomizing plate (4) is provided on the side of the inner material chamber (2). The inner material chamber (2) has a drug delivery tube (5) on the side. The inner wall of the drug delivery tube (5) has a strip groove (6). The end of the drug delivery tube (5) is rounded. The top surface of the inner material chamber (2) has an outer material chamber (3). The bottom surface of the outer shell (1) has a lower cover (14). The bottom surface of the lower cover (14) has a fixed shell (7). The inside of the fixed shell (7) has a feeding chamber (8). The drug delivery tube (5) is shaped like an outward flared mouth.

2. The anti-backflow and anti-pollution ocular nebulizer according to claim 1, characterized in that: The outer casing (1) has a display screen (9) on its side and a through hole (11) on its side.

3. The anti-backflow and anti-pollution ocular nebulizer according to claim 2, characterized in that: The position of the atomizing plate (4) corresponds to the position of the through hole (11), and the surface of the drug delivery tube (5) is connected to the through hole (11).

4. The anti-backflow and anti-pollution ocular nebulizer according to claim 1, characterized in that: The housing (1) contains a battery (12) and a circuit board (13).

5. The anti-backflow and anti-pollution ocular nebulizer according to claim 4, characterized in that: The atomizing plate (4) is electrically connected to the circuit board (13), and the position of the drug delivery tube (5) corresponds to the position of the atomizing plate (4).

6. The anti-backflow and anti-pollution ocular nebulizer according to claim 1, characterized in that: The top surface of the inner silo (2) is provided with a liquid inlet pipe (10), and the outer silo (3) is connected to the inner silo (2) through the liquid inlet pipe (10).

7. The anti-backflow and anti-pollution ocular nebulizer according to claim 1, characterized in that: The top surface of the feeding bin (8) is magnetically connected to the bottom surface of the lower cover (14), and the bottom surface of the outer bin (3) is magnetically connected to the top surface of the inner bin (2).

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