A drug delivery device for corneal cross-linking procedures

Abstract

The utility model discloses a corneal crosslinking operation medicine device in the technical field of ophthalmic surgical instruments, including liquid storage structure and adsorption arc, liquid storage structure includes liquid storage ring and infiltration cavity, and the even uniformity of a circle of liquid storage ring is provided with multiple infiltration cavities, and the upper adhesion of infiltration cavity is adhered with upper adhesion paste, the utility model discloses through adsorption arc adsorption on human eyeball, prevents the loss of riboflavin through liquid storage ring, improves the utilization rate and absorption degree of riboflavin solution, guarantees human eye wet through infiltration cavity and liquid channel.

Description

Technical Field

[0001] This utility model relates to the field of ophthalmic surgical instruments, specifically a drug delivery device for corneal cross-linking surgery. Background Technology

[0002] Corneal Collagen Cross-linking (CXL) is a surgical procedure that increases corneal hardness and strength by enhancing the chemical bonds between corneal collagen fibers.

[0003] Normally, collagen fibers in the cornea are interconnected by relatively weak chemical bonds. Corneal cross-linking surgery uses ultraviolet light of a specific wavelength, usually 365nm, to irradiate the cornea, along with photosensitizers such as riboflavin and vitamin B2. Under the influence of ultraviolet light, riboflavin produces reactive oxygen species, which trigger the formation of new covalent bonds between amino acid residues in the corneal collagen fibers. This makes the connections between collagen fibers tighter and increases the biomechanical stability of the cornea.

[0004] The surgical procedure spans a certain period of time, during which the eyes are relatively open, and tears will continuously evaporate. Especially when the surgery is long, the amount of tear evaporation will be greater, making the eyes more prone to dryness.

[0005] Based on this, the present invention designs a drug delivery device for corneal cross-linking surgery to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a drug delivery device for corneal cross-linking surgery, in order to solve the problem mentioned in the background art that when the operation time is long, the tear evaporation will be greater, which will more easily cause dry eyes.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a drug delivery device for corneal cross-linking surgery, comprising a liquid storage structure and an adsorption arc, wherein the liquid storage structure comprises a liquid storage ring and an infiltration cavity, wherein multiple sets of infiltration cavities are uniformly opened on the circumference of the liquid storage ring, and an upper adhesive patch is adhered to the infiltration cavity.

[0008] Preferably, an adsorption arc is provided below the liquid storage structure, and multiple sets of stabilizing holes are formed on the circumference of the adsorption arc. A liquid guiding channel is formed on the circumference below the adsorption arc, and the liquid guiding channel is connected to the bottom of the immersion chamber.

[0009] Preferably, a lower adhesive patch is adhered below the adsorption arc, and a protruding block is provided at the outer end of the lower adhesive patch.

[0010] Preferably, the adsorption arc is made of PHEMA material.

[0011] Preferably, the outer side of the liquid storage ring is provided with anti-slip texture.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this utility model is adsorbed onto the human eyeball by an adsorption arc, prevents the loss of riboflavin by a liquid storage ring, improves the utilization rate and absorption of riboflavin solution, and ensures the human eye is moist by an immersion cavity and a liquid guiding channel. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the main view structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention from a frontal view.

[0016] Figure 3 This is a schematic diagram of the structure of the present invention from an upward angle.

[0017] Figure 4 This is a schematic diagram of the structure of this utility model from an upward angle.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1-Liquid storage structure, 2-Adsorption arc, 3-Liquid storage ring, 4-Immersion cavity, 5-Upper adhesive, 6-Stabilizing hole, 7-Liquid guiding channel, 8-Lower adhesive, 9-Protruding block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a drug delivery device for corneal cross-linking surgery, including a liquid storage structure 1 and an adsorption arc 2. The liquid storage structure 1 includes a liquid storage ring 3 and an infiltration cavity 4. Multiple sets of infiltration cavities 4 are evenly opened on the circumference of the liquid storage ring 3, and an upper adhesive sticker 5 is adhered to the infiltration cavity 4.

[0022] Among them, an adsorption arc 2 is provided below the liquid storage structure 1, and multiple sets of stabilizing holes 6 are opened on the circumference of the adsorption arc 2. A liquid guiding channel 7 is opened on the circumference below the adsorption arc 2, and the liquid guiding channel 7 is connected to the bottom of the immersion chamber 4.

[0023] A lower adhesive sticker 8 is attached to the bottom of the adsorption arc 2. A protruding block 9 is provided at the outer end of the lower adhesive sticker 8, which makes it easy to peel off the lower adhesive sticker 8.

[0024] The adsorption arc 2 is made of flexible material PHEMA. PHEMA has good hydrophilicity, flexibility and elasticity, biocompatibility, optical transparency and chemical stability. The outer side of the liquid storage ring 3 is provided with anti-slip texture for easy handling and movement of the device.

[0025] One specific application of this embodiment is as follows: This utility model places the device on the eye by tearing off the lower adhesive strip 8. Due to air pressure, the infiltration fluid in the infiltration cavity 4 will not fall out. During the operation, the eye is in a relatively open state, and the tears will evaporate continuously. When the eye is dry, the upper adhesive strip 5 is torn off, allowing the infiltration fluid in the infiltration cavity 4 to reach the fluid channel 7 through the infiltration cavity 4, thus completing the infiltration of the eye and ensuring eye moisture. The degree of eye moisture can be controlled by controlling the number of upper adhesive strips 5 torn off. This device is adsorbed onto the human eyeball by the adsorption arc 2, and the riboflavin is prevented from being lost by the liquid storage ring 3, improving the utilization rate and absorption of the riboflavin solution. The infiltration cavity 4 and the fluid channel 7 ensure that the human eye is moist.

[0026] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A drug delivery device for corneal cross-linking surgery, comprising a liquid storage structure (1) and an adsorption arc (2), characterized in that: The liquid storage structure (1) includes a liquid storage ring (3) and an immersion cavity (4). Multiple immersion cavities (4) are evenly opened on the circumference of the liquid storage ring (3), and an upper adhesive tape (5) is adhered to the immersion cavity (4).

2. The drug delivery device for corneal cross-linking surgery according to claim 1, characterized in that: Below the liquid storage structure (1) is an adsorption arc (2), and multiple sets of stabilizing holes (6) are opened on the circumference of the adsorption arc (2). A liquid guiding channel (7) is opened on the circumference below the adsorption arc (2), and the liquid guiding channel (7) is connected to the bottom of the immersion chamber (4).

3. The drug delivery device for corneal cross-linking surgery according to claim 1, characterized in that: A lower adhesive patch (8) is attached below the adsorption arc (2), and a protruding block (9) is provided at the outer end of the lower adhesive patch (8).

4. The drug delivery device for corneal cross-linking surgery according to claim 1, characterized in that: The adsorption arc (2) is made of PHEMA material.

5. The drug delivery device for corneal cross-linking surgery according to claim 1, characterized in that: The outer side of the liquid storage ring (3) is provided with anti-slip texture.

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