A double-layer leakage-proof film for ophthalmic surgery

Abstract

The application discloses an ophthalmic surgery double-layer leakage-proof film, and relates to the technical field of ophthalmic surgery, which comprises an upper film and a lower film, the upper film comprises a hole drape and a water storage bag type transparent film, the water storage bag type transparent film comprises a film piece and a water storage bag, the film piece is arranged on a fissure, and a pressing film is attached to the surface of the fissure; the lower film is provided with a rectangular hole, and comprises a protective layer and a sticking layer, and the protective layer is attached to both sides of the sticking layer. The fissure is arranged on the water storage bag type transparent film, so that the fissure is not cut by scissors during surgery, and the safety of surgery is improved; meanwhile, the double-layer waterproof structure of the upper film and the lower film is utilized, so that water leakage and wide-angle lens fogging are not prone to occur during long-time surgery, water flushing and soaking.

Description

Technical Field

[0001] This application relates to the field of ophthalmic surgery technology, specifically to a double-layer leak-proof film for ophthalmic surgery. Background Technology

[0002] Ophthalmic surgery, especially intraocular surgery, requires intraocular irrigation and external flushing to complete the procedure. Currently, the main clinical practice is to use a transparent film with a reservoir bag on the side. The inner surface of the transparent film is adhesive and adheres to the skin surface of the eyelid and around the eye socket. When there is water, it will not flow under the film, but will flow through the film to the reservoir bag on the side, thus preventing water from overflowing during the operation.

[0003] However, in actual intraocular surgery, the existing water-retaining bag-type transparent film has the following shortcomings: (1) Before draping the surgical drape, the eyelids and surrounding skin should be disinfected with povidone-iodine. Applying the surgical drape reduces the adhesion between the drape and the skin. Even if the povidone-iodine is wiped dry before applying, the effect is not good. In particular, the inner and outer canthi are prone to leakage. Even if the drape is applied well, it will separate from the skin after repeated rinsing.

[0004] (2) When the membrane is not properly attached, the overflowing water will flow under the membrane and drip down the patient’s face through the outer and inner canthi onto the surgeon. If the patient has an infectious disease, this will increase the surgeon’s risk of exposure to infectious diseases. Alternatively, water that flows out of the operated eye may flow up and down the membrane and between the left and right eyes, increasing the risk of infection. Coughing can also cause the water to travel upwards, which will also increase the risk of infection in the operated eye.

[0005] (3) During vitreoretinal surgery, the patient’s breathing will move upward along the gap at the inner canthus, causing the wide-angle lens to fog up, blurring the surgical field and affecting the surgery.

[0006] Existing patent CN202421072914.4, entitled "Ophthalmic Surgical Leak-Proof Film," aims to solve the aforementioned problems, but it has the following technical issues: After the transparent film of the reservoir bag is applied around the eye, a slit needs to be cut in the film with scissors to expose the eye before the surgery to facilitate the operation. However, cutting a slit in the film applied around the eye with scissors carries surgical risks.

[0007] In short, the effectiveness of surgical eye patches directly affects all aspects of the surgery, both during and after the procedure. Utility Model Content

[0008] The main purpose of this application is to provide a double-layer leak-proof film for ophthalmic surgery, which aims to solve the above-mentioned problems.

[0009] The technical solution adopted in this application is as follows: A double-layer leak-proof film for ophthalmic surgery, comprising: The upper layer film includes a perforated drape and a water-storage bag-type transparent film. The water-storage bag-type transparent film is disposed on the perforated drape. The water-storage bag-type transparent film includes a film sheet and a water-storage bag. The film sheet is disposed in the slit, and a pressure film is adhered to the surface of the slit. The lower layer film has rectangular holes and includes a protective layer and an adhesive layer, with the protective layer bonded to both sides of the adhesive layer.

[0010] Optionally, the protective layer is provided with perforated lines, and a lifting tab is provided at the location of the perforated lines.

[0011] Optionally, the protective layer is release paper, and the adhesive layer is a polyurethane film coated with pressure-sensitive adhesive.

[0012] Optionally, the length and width of the protective layer are both greater than the length and width of the adhesive layer.

[0013] Optionally, the lower film is a rectangular structure with a width of 7 cm and a height of 10.5 cm.

[0014] Optionally, the rectangular hole has a length of 4.5cm and a width of 3.5cm.

[0015] Compared with the prior art, the beneficial effects of this application are: This application proposes a double-layer leak-proof ophthalmic surgical film. By creating slits in the upper film, the slits are eliminated during surgery, improving surgical safety. The lower film's protective layer is peeled off and applied to the eyelid and surrounding skin, while the upper water-retaining transparent film is adhered to the surface of the lower film. This double-layer waterproof structure prevents leaks and fogging of wide-angle lenses during prolonged surgery, even with rinsing and soaking. Furthermore, even if the film is not properly applied, the double-layer waterproof structure significantly limits liquid penetration into the lower film. Attached Figure Description

[0016] Fig. 1 A schematic diagram of the lower layer of the ophthalmic surgical double-layer leak-proof film provided in this embodiment of the application, viewed from one angle. Fig. 2 This is a schematic diagram of the upper layer of the ophthalmic surgical double-layer leak-proof film provided in an embodiment of this application, viewed from one angle.

[0017] Explanation of the labels in the attached drawings: 1-PU film, 2-front release paper, 3-back release paper, 4-rectangular hole, 5-perforated sheet, 6-perforation line, 8-water-storage bag type transparent film, 801-film sheet, 802-water-storage bag, 803-slit, 804-pressed film sheet. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0019] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0020] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0021] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0022] See attached document Figs. 1-2As shown in the figure, this application provides a double-layer leak-proof film for ophthalmic surgery, including an upper film and a lower film. The upper layer of the film includes a perforated drape 5 and a water-storage bag-type transparent film 8. The water-storage bag-type transparent film 8 includes a water-storage bag 802 and a film sheet 801. A transparent film sheet 801 made of thin polyethylene material is left in the center of the perforated drape 5. The transparent film sheet 801 is 10cm x 10cm in size. The film sheet 801 is connected to a 15cm x 25cm water-storage bag 802. The film sheet 801 has a slit 803. A pressure film sheet 804 is glued to the surface of the slit 803. The inner surface of the pressure film sheet 801 is a 10cm x 13cm release paper with an outer canthus indicator arrow printed on it. The outer center of the film sheet 801 is a 2.5cm x 3.5cm red and blue strip of adhesive tape. The area covered by the strip of adhesive tape has a 3.5cm slit 803 in the polyethylene film material of the pressure film sheet 803. The slit 803 is 2cm from the nasal side and 3.5cm from the temporal side.

[0023] In practical use, the lower layer of the film is applied to the eyelid and surrounding skin, and the upper layer of the film is applied to the surface of the lower layer. Since the water-reservoir transparent film 8 has a built-in slit 803, the film 804 is peeled off during surgery to expose the slit 803. It is no longer necessary to use scissors to cut slits in the water-reservoir transparent film 8, which significantly improves the safety of the surgery. Furthermore, since the upper layer of the film is applied to the surface of the lower layer, when intraocular irrigation and external flushing are performed, water and liquid will flow into the water-reservoir along the surface of the upper layer of the film. The double-layer film structure can greatly reduce the leakage of water into the skin surface around the eye.

[0024] In the above-mentioned design, the lower layer of the film has a rectangular structure measuring 10.5cm in length and 7cm in width. The lower layer of the film has a rectangular hole 4 measuring 4.5cm in length and 3.5cm in width, positioned centrally. The rectangular hole 4 is designed to separate the bony orbit from the movable eyelid. In particular, the rectangular hole 4 closely matches the bony orbit, limiting the risk of delamination and leakage at the inner and outer canthi. The lower layer of the film is a single-use film, sterilized using ethylene oxide, with a residual ethylene oxide content not exceeding 10ug / cm².

[0025] In this embodiment, the lower film includes a protective layer and an adhesive layer, with the protective layer bonded to both sides of the adhesive layer. The protective layer is a release liner, consisting of a front release liner 2 and a back release liner 3, made of silicone-coated paper. The adhesive layer is a PU film 1 (polyurethane film) coated with pressure-sensitive adhesive. Compared to the upper film made of polyethylene film, the polyurethane film is more skin-friendly, softer, and more comfortable. In use, one side of the protective layer is peeled off first, and the adhesive layer is adhered to the skin around the eyelid. Then, the other side of the protective layer is peeled off and adhered to the upper film. In a preferred embodiment, the length and width of the protective layer are greater than the length and width of the adhesive layer. This design prevents fingers from touching the adhesive layer when peeling off the protective layers, avoiding stickiness.

[0026] Furthermore, the protective layer is provided with perforated lines 6, which makes it easy to peel off the protective layer.

[0027] In summary, the specific method of using the double-layer leak-proof film for ophthalmic surgery provided in this application embodiment is as follows: After routine disinfection of the eye and facial skin with povidone-iodine three times, a sterile drape is applied to the head. The skin around the operated eye and the povidone-iodine solution are then dried with sterile gauze. The release paper on one side of the lower layer of the adhesive film is peeled off, and the rectangular hole 4 is aligned with the operated eye, ensuring complete contact with the skin. The release paper on the other side is then peeled off. Finally, a water-retaining transparent adhesive film is applied to the lower layer. During the procedure, the pressure film 804 is peeled off, exposing the slit 803. It is evident that the slit 803 in the upper layer of the adhesive film avoids the need to cut the slit with scissors during surgery, improving surgical safety. The double-layer waterproof structure of the upper and lower layers of the adhesive film prevents leakage and fogging of the wide-angle lens even during prolonged surgery involving rinsing and soaking. Furthermore, even if the film is not properly applied, the double-layer waterproof structure significantly limits liquid penetration into the lower layer.

[0028] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A double-layer leak-proof film for ophthalmic surgery, characterized in that, include: The upper layer film includes a perforated drape and a water-storage bag-type transparent film. The water-storage bag-type transparent film is disposed on the perforated drape. The water-storage bag-type transparent film includes a film sheet and a water-storage bag. The film sheet is disposed in the slit, and a pressure film is adhered to the surface of the slit. The lower layer film has rectangular holes and includes a protective layer and an adhesive layer, with the protective layer bonded to both sides of the adhesive layer.

2. The double-layer leak-proof ophthalmic surgical film according to claim 1, characterized in that, The protective layer is provided with perforated lines, and a lifting tab is provided at the location of the perforated lines.

3. The double-layer leak-proof ophthalmic surgical film according to claim 1, characterized in that, The protective layer is release paper, and the adhesive layer is a polyurethane film coated with pressure-sensitive adhesive.

4. The double-layer leak-proof ophthalmic surgical film according to claim 1, characterized in that, The length and width of the protective layer are both greater than the length and width of the adhesive layer.

5. The double-layer leak-proof ophthalmic surgical film according to claim 1, characterized in that, The lower film is a rectangular structure with a length of 10.5cm and a width of 7cm.

6. The double-layer leak-proof ophthalmic surgical film according to claim 1, characterized in that, The rectangular hole is 4.5cm long and 3.5cm wide.

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