Cleaning method and cleaning device for ophthalmology medical apparatus and instruments

Abstract

The invention relates to a cleaning method and a cleaning device for ophthalmic medical instruments. The cleaning method for the ophthalmology medical instrument comprises the following steps that the ophthalmology medical instrument is placed in electrolyte, the electrolyte comprises water and electrolyte, and the mass percentage concentration of the electrolyte is 0.05%-0.1%; and under the conditions that the current is 0.2 A to 0.5 A and the voltage is 1.5 V to 6 V, the electrolyte is electrolyzed, so that the cathode generates hydrogen peroxide, and the ophthalmology medical instrument is cleaned. According to the ophthalmology medical instrument cleaning method, the ophthalmology medical instrument is cleaned and sterilized through hydrogen peroxide generated through electrolysis, dirt, microorganisms and the like on the surface of the ophthalmology medical instrument are removed, water and oxygen are generated after cleaning, no stimulation or pollution is generated on the ophthalmology medical instrument, and safety is high. And the ophthalmology medical instruments are cleaned through an electrolysis method, operation is easy, efficiency is high, and cleaning consistency is good.

Description

Technical Field

[0001] The present application relates to the field of ophthalmic medical instruments, and in particular to an ophthalmic medical instrument cleaning method and cleaning device. Background Art

[0002] After long-term use, current ophthalmic medical devices will cause the deposition of dirt, microorganisms, proteins and other substances. Therefore, they need to be cleaned after a certain period of use. Traditional ophthalmic medical devices require manual operation during the cleaning process, for example, rubbing with fingers to remove dirt, proteins and other deposits on ophthalmic medical devices. However, this method is inefficient and the consistency of the cleaning effect is poor. Summary of the invention

[0003] Based on this, some embodiments of the present application provide a method for cleaning ophthalmic medical devices, which is simple to operate, highly efficient and has good consistency in cleaning effect.

[0004] In addition, some other embodiments of the present application also provide an ophthalmic medical instrument cleaning device.

[0005] A method for cleaning ophthalmic medical equipment comprises the following steps:

[0006] Placing the ophthalmic medical device in an electrolyte, wherein the electrolyte comprises water and an electrolyte, and the mass percentage concentration of the electrolyte is 0.05% to 0.1%;

[0007] Under the conditions of a current of 0.2A-0.5A and a voltage of 1.5V-6V, the electrolyte is electrolyzed to generate hydrogen peroxide at the cathode to clean the ophthalmic medical device.

[0008] In some of the embodiments, the concentration of hydrogen peroxide generated at the cathode is 2 mg / L to 3.5 mg / L.

[0009] In some of these embodiments, the cathode also generates hydrogen.

[0010] In some embodiments, the electrolyte includes sodium chloride, and during the electrolysis process, the anode generates hypochlorous acid and oxygen.

[0011] In some of the embodiments, the concentration of hypochlorous acid generated at the anode is 0.2 mg / L to 0.6 mg / L.

[0012] In some embodiments, the electrolysis time is 5 min to 10 min; and / or,

[0013] The volume of the electrolyte is 10 mL to 100 mL.

[0014] In some of the embodiments, at least one of the cathode and the anode has a porous structure.

[0015] In some embodiments, the cathode and the anode are each independently selected from a carbon black electrode, a graphite carbon felt electrode or a platinum electrode;

[0016] And / or, the cathode and the anode are each independently in the shape of a sheet or a cylinder.

[0017] In some embodiments, the ophthalmic medical device includes one or more of contact lenses and orthokeratology lenses.

[0018] An ophthalmic medical instrument cleaning device, comprising:

[0019] an electrolytic unit, comprising an electrolyte, an anode and a cathode;

[0020] A housing, wherein the housing is provided with a receiving cavity for receiving the electrolytic unit and the ophthalmic medical device;

[0021] a power supply unit, electrically connected to the anode and the cathode;

[0022] The electrolyte includes water and electrolyte, the mass percentage concentration of the electrolyte is 0.05%~0.1%, the current of the power supply unit is 0.2A~0.5A, and the voltage is 1.5V~6V.

[0023] In some embodiments, the electrolyte includes sodium chloride;

[0024] And / or, the shell is provided with two accommodating chambers, and the electrolysis unit is arranged in each of the two accommodating chambers.

[0025] In some embodiments, the anode and the cathode are each independently selected from a carbon black electrode, a graphite carbon felt electrode or a platinum electrode;

[0026] And / or, the anode and the cathode are independently in the shape of a sheet or a cylindrical structure;

[0027] And / or, at least one of the anode and the cathode has a porous structure.

[0028] The above-mentioned ophthalmic medical device cleaning method uses an electrolysis method to adjust the concentration of the electrolyte to 0.05%~0.1%. The electrolyte concentration is very low and is used to provide conductivity. Water is used for electrolysis. By adjusting the current and voltage parameters of the electrolysis, the cathode mainly produces hydrogen peroxide during the electrolysis of the electrolyte, which is used to clean and sterilize ophthalmic medical devices and remove dirt and microorganisms on the surface of ophthalmic medical devices. After cleaning, water and oxygen are generated, which are non-irritating and non-polluting to ophthalmic medical devices and have high safety. Moreover, compared with the traditional manual operation method, the ophthalmic medical device cleaning by electrolysis is simple to operate, highly efficient, and has good consistency in cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 A schematic diagram of a process flow of a method for cleaning ophthalmic medical devices according to some embodiments of the present application;

[0031] Figure 2 A schematic diagram of the structure of an ophthalmic medical device cleaning device according to some embodiments of the present application;

[0032] Figure 3 A structural schematic diagram of an ophthalmic medical instrument cleaning device according to other embodiments of the present application.

[0033] Description of reference numerals:

[0034] Electrolytic cell 210 , electrolyte 212 , anode 214 , cathode 216 , housing 220 , power supply unit 230 , positive electrode 232 , negative electrode 234 , positive electrode post 236 , and negative electrode post 238 . DETAILED DESCRIPTION

[0035] In order to facilitate the understanding of the present application, the present application will be described more comprehensively below in conjunction with the specific embodiments. The preferred embodiments of the present application are provided in the specific embodiments. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present application belongs. The terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0037] Unless otherwise specified or there is a contradiction, the terms and phrases used in this application have the following meanings:

[0038] In this application, "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0039] In the description of the present application, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0040] In this application, "one or several" refers to any one, any two or more of the listed items. Among them, "several" refers to any two or more of the listed items.

[0041] In this application, the percentage concentration involved, unless otherwise specified, refers to the final concentration. The final concentration refers to the proportion of the added component in the system after the addition of the component.

[0042] In this application, "further", "further", "particularly", "for example", "such as", "example", "for example", etc. are used for descriptive purposes, indicating that the previous and subsequent different technical solutions are related in terms of the content covered, but should not be understood as a limitation on the previous technical solution, nor can it be understood as a limitation on the protection scope of this document. In this document, unless otherwise specified, A (such as B) means that B is a non-limiting example of A, and it can be understood that A is not limited to B.

[0043] In this application, "optionally", "optional", and "optional" mean optional, that is, any one of the two parallel schemes of "yes" or "no". If multiple "options" appear in a technical solution, unless otherwise specified and there is no contradiction or mutual restriction, each "optional" is independent. In this application, descriptions such as "optionally contain" and "optionally include" mean "contain or do not contain".

[0044] When a numerical range is disclosed in this application, the above range is considered to be continuous and includes the minimum and maximum values ​​of the range, as well as every value between such minimum and maximum values. Further, when a range refers to an integer, every integer between the minimum and maximum values ​​of the range is included. In addition, when multiple ranges are provided to describe features or characteristics, the ranges can be combined. In other words, unless otherwise indicated, all ranges disclosed in this application should be understood to include any and all subranges included therein.

[0045] In the present application, the technical features described in an open manner include closed technical solutions composed of the listed features, and also include open technical solutions containing the listed features.

[0046] The terms "including" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or components that are inherent to these processes, methods, products, or devices.

[0047] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0048] In the flowchart of the present application, although the various steps are displayed in sequence as indicated by the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise clearly stated in the text, the execution of these steps is not strictly restricted in order and they can be performed in other orders. Moreover, at least part of the steps in the figure may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily performed at the same time, but can be performed at different times. Their execution order is not necessarily sequential, but can be performed in turn or alternately with other steps or at least part of other sub-steps or stages.

[0049] The first aspect of the present application provides a method for cleaning an ophthalmic medical device. Figure 1 , including the following steps S110 and S120:

[0050] Step S110: placing the ophthalmic medical device in an electrolyte, the electrolyte comprising water and electrolytes, and the mass percentage concentration of the electrolytes is 0.05% to 0.1%.

[0051] Step S120: Under the conditions of a current of 0.2A-0.5A and a voltage of 1.5V-6V, the electrolyte is electrolyzed to generate hydrogen peroxide at the cathode to clean the ophthalmic medical device.

[0052] The above-mentioned ophthalmic medical device cleaning method uses an electrolysis method to adjust the concentration of the electrolyte to 0.05%~0.1%. The electrolyte concentration is very low and is used to provide conductivity. Water is used for electrolysis. By adjusting the current and voltage parameters of the electrolysis, the cathode mainly produces hydrogen peroxide during the electrolysis of the electrolyte, which is used to clean and sterilize ophthalmic medical devices and remove dirt and microorganisms on the surface of ophthalmic medical devices. After cleaning, water and oxygen are generated, which are non-irritating and non-polluting to ophthalmic medical devices and have high safety. Moreover, compared with the traditional manual operation method, the ophthalmic medical device cleaning by electrolysis is simple to operate, highly efficient, and has good consistency in cleaning effect.

[0053] In addition, traditional ophthalmic medical device cleaning methods use special care solutions, such as contact lens care solutions. The care solutions are relatively expensive and usually have complex ingredients. A large number of chemical substances are added, which poses a risk of leaving chemical substances on the ophthalmic medical devices and irritating the eyes. The above-mentioned ophthalmic medical device cleaning methods in some embodiments of the present application utilize electrolytes and water for electrolysis, without the need to add other complex chemical raw materials, thereby reducing costs. Electrolysis generates components with cleaning, disinfection and sterilization functions. Compared with traditional care solutions, there is no chemical reagent residue, no pollution, no corrosion, and green environmental protection. It will not cause irritation and damage to the eyes and ophthalmic medical devices, ensuring no residue and no secondary pollution, and is very hygienic, safe and reliable.

[0054] In some embodiments, the ophthalmic medical device includes one or more of a contact lens and a corneal reshaping lens.

[0055] In some embodiments, the mass percentage concentration of the electrolyte is 0.05% to 0.1%. For example, the mass percentage concentration of the electrolyte can be, but is not limited to, 0.05%, 0.06%, 0.07%, 0.08%, 0.09%, 0.1%, or a range consisting of any two of these values.

[0056] Specifically, the current is 0.2A to 0.5A. For example, the current may be, but is not limited to, 0.2A, 0.25A, 0.3A, 0.35A, 0.4A, 0.45A, 0.5A, or a range consisting of any two of these values. The voltage is 1.5V to 6V. For example, the voltage may be, but is not limited to, 1.5V, 2V, 2.5V, 3V, 3.5V, 4V, 4.5V, 5V, 5.5V, 6V, or a range consisting of any two of these values.

[0057] In some embodiments, during the electrolysis process, the main reactions occurring at the anode and cathode are as follows:

[0058] Anodic oxidation reaction: 2H2O→4H + +O2↑+4e - ;

[0059] Cathode reduction reaction: O2+2e - +2H2O→H2O2+2OH - .

[0060] At the anode, water molecules undergo an oxidation reaction to produce oxygen, hydrogen ions and four electrons. At the cathode, oxygen undergoes a reduction reaction with water molecules and electrons to produce hydrogen peroxide and hydroxide ions.

[0061] In some of these embodiments, hydrogen is also generated at the cathode during the electrolysis process.

[0062] Specifically, H2O+2e - →2OH - +H2↑.

[0063] In some embodiments, the concentration of hydrogen peroxide generated at the cathode is 2 mg / L to 3.5 mg / L. For example, the concentration of hydrogen peroxide generated at the cathode may be, but is not limited to, 2 mg / L, 2.2 mg / L, 2.4 mg / L, 2.6 mg / L, 2.8 mg / L, 3 mg / L, 3.2 mg / L, 3.4 mg / L, 3.5 mg / L, or a range consisting of any two of these values.

[0064] In some embodiments, the electrolyte includes sodium chloride, and during the electrolysis process, a small amount of hypochlorous acid is generated while oxygen is generated at the anode.

[0065] After electrolysis, the electrolyte obtains a solution with a pH value substantially the same as that of tears, which is non-irritating, zero-residue, non-corrosive and highly safe.

[0066] Specifically, the reaction to generate hypochlorous acid is as follows:

[0067] 2Cl - →Cl2+2e - ;

[0068] Cl2+H2O→HClO+HCl;

[0069] HClO〈==〉ClO - +H + ;

[0070] HClO→[O]+Cl - +H + ;

[0071] C1O - →[O]+Cl - ;

[0072] Among them, HClO, ClO - Collectively known as available chlorine.

[0073] Specifically, the concentration of hypochlorous acid generated at the anode is 0.2 mg / L to 0.6 mg / L. For example, the concentration of hypochlorous acid generated at the anode may be, but is not limited to, 0.2 mg / L, 0.25 mg / L, 0.3 mg / L, 0.35 mg / L, 0.4 mg / L, 0.45 mg / L, 0.5 mg / L, 0.55 mg / L, 0.6 mg / L or a range consisting of any two of these values.

[0074] In some embodiments, the electrolysis time is 5 min to 10 min. For example, the electrolysis time can be, but is not limited to, 5 min, 6 min, 7 min, 8 min, 9 min, 10 min, or a range consisting of any two of these values.

[0075] It is understandable that in actual processes, the electrolyte needs to flood the ophthalmic medical device in order to fully clean it.

[0076] In some embodiments, a small amount of ozone is also produced at the anode, the reaction is as follows: 3H2O→6H + +O3↑+6e - . Under the above-mentioned electrolyte concentration, current and voltage conditions of the present application, a higher concentration of hydrogen peroxide can be produced, which inhibits the generation of ozone. When the electrolyte concentration in the electrolyte is too high, and the current and voltage are too high, the ozone concentration increases, which reduces the effective concentration of hydrogen peroxide, thereby reducing the cleaning effect and the sterilization effect. In addition, when the electrolyte concentration in the electrolyte is too high, and the current and voltage are too high, the concentration of the byproduct hypochlorous acid will also increase, causing irritation to the eyes. Therefore, in some embodiments of the present application, by adjusting the concentration of the electrolyte, the current and voltage parameters of the electrolysis, the cathode mainly produces hydrogen peroxide during the electrolysis of the electrolyte, reducing the generation of ozone and hypochlorous acid byproducts, which is used to clean and sterilize ophthalmic medical devices, remove dirt and microorganisms on the surface of ophthalmic medical devices, etc., and generate water and oxygen after cleaning, which is non-irritating and non-polluting to ophthalmic medical devices and has high safety.

[0077] In some embodiments, the volume of the electrolyte is 10 mL to 100 mL. For example, the volume of the electrolyte may be, but is not limited to, 10 mL, 20 mL, 30 mL, 40 mL, 60 mL, 80 mL, 100 mL, or a range consisting of any two of these values. Experiments have shown that when the volume of the electrolyte is within the above range, effective cleaning and sterilization of ophthalmic medical devices can be achieved.

[0078] In some embodiments, at least one of the anode and the cathode has a porous structure. During the electrolysis process, the anode produces oxygen and the cathode produces hydrogen. The use of electrodes with porous structures allows the gas produced during electrolysis to mix with water to form delicate, rich, and uniform microbubbles, making it easier to clean dirt and microorganisms, etc., and reduce working time. In addition, the electrophoretic dissociation care disinfection instrument on the market has limitations and dead corners. The electrolysis method of some embodiments of the present application can speed up the cleaning effect and sterilize and disinfect, clean more thoroughly without dead corners, save resources, and reduce costs.

[0079] In some of these embodiments, both the anode and the cathode have porous structures.

[0080] In some embodiments, the anode and the cathode are independently selected from a carbon black electrode, a graphite carbon felt electrode or a platinum electrode (also called a platinum electrode). The use of the above electrodes, on the one hand, does not produce metal materials that are harmful substances, and on the other hand, is conducive to the cathode to produce hydrogen peroxide. In one example, the anode is a platinum electrode and the cathode is a carbon black electrode.

[0081] In some embodiments, the anode and cathode are independently shaped as sheets or cylinders. It is understood that only two common electrode shapes are given above, but the shapes of the anode and cathode are not limited thereto and may also be other shapes.

[0082] In some embodiments, at least one of the anode and the cathode is a porous cylindrical electrode. Alternatively, both the anode and the cathode are porous cylindrical electrodes.

[0083] The second aspect of the present application provides an ophthalmic medical device cleaning device, see Figure 2 , comprising: an electrolysis unit 210, a housing 220 and a power supply unit 230;

[0084] The electrolytic unit 210 includes an electrolyte 212, an anode 214 and a cathode 216; the housing 220 is provided with a receiving cavity for receiving the electrolytic unit 210 and an ophthalmic medical device (not shown); the power supply unit 230 is electrically connected to the anode 214 and the cathode 216;

[0085] The electrolyte 212 includes water and electrolyte, and the mass percentage concentration of the electrolyte is 0.05% to 0.1%. The current of the power supply unit 230 is 0.2A to 0.5A, and the voltage is 1.5V to 6V.

[0086] The above-mentioned ophthalmic medical instrument cleaning device includes an electrolysis unit 210, a shell 220 and a power supply unit 230. By adjusting the concentration of the electrolyte 212 of the electrolysis unit 210 and the current and voltage parameters of the power supply unit 230, during the electrolysis of the electrolyte 212, the cathode 216 mainly produces hydrogen peroxide, which is used to clean and sterilize ophthalmic medical instruments and remove dirt and microorganisms on the surface of ophthalmic medical instruments. After cleaning, water and oxygen are generated, which has no irritation and pollution to the ophthalmic medical instruments and is highly safe.

[0087] In some embodiments, the above-mentioned ophthalmic medical device cleaning device is capable of electrolyzing to produce a cleaning solution with a hydrogen peroxide concentration of 2 mg / L to 3.5 mg / L.

[0088] In some embodiments, the electrolyte includes sodium chloride. Low concentration sodium chloride solution causes less irritation and damage to ophthalmic medical devices.

[0089] In some embodiments, the above-mentioned ophthalmic medical instrument cleaning device is capable of electrolyzing to produce a cleaning solution with a hypochlorous acid concentration of 0.2 mg / L to 0.6 mg / L.

[0090] In some embodiments, at least one of the anode 214 and the cathode 216 has a porous structure.

[0091] In some embodiments, the anode 214 and the cathode 216 are each independently selected from a carbon black electrode, a graphite carbon felt electrode or a platinum electrode (also called a platinum electrode). The use of the above electrodes, on the one hand, does not produce metal materials that are harmful substances, and on the other hand, is conducive to the cathode producing hydrogen peroxide. In one example, the anode is a platinum electrode and the cathode is a carbon black electrode.

[0092] In some embodiments, the anode 214 and the cathode 216 are independently shaped like a sheet or a cylinder. It is understood that only two common electrode shapes are given above, but the shapes of the anode 214 and the cathode 216 are not limited thereto and can also be other shapes.

[0093] It can be understood that the anode 214 and the cathode 216 can be placed in the receiving cavity and fully contact with the electrolyte 212 to ensure the electrolysis effect.

[0094] In some embodiments, the electrolysis unit 210 further includes a separator (not shown) disposed between the anode 214 and the cathode 216. It is understood that in other embodiments, the separator may not be disposed.

[0095] In some embodiments, the power supply unit 230 may be a small battery pack or an adjustable DC regulated power supply.

[0096] In some embodiments, the power supply unit 230 includes a positive electrode 232 and a negative electrode 234 , the positive electrode 232 of the power supply unit 230 is electrically connected to the anode 214 of the electrolysis unit 210 , and the negative electrode 234 of the power supply unit 230 is electrically connected to the cathode 216 of the electrolysis unit 210 .

[0097] In some embodiments, the power supply unit 230 further includes a positive pole 236 and a negative pole 238 for connecting the positive electrode 232 and the anode 214 , and the negative electrode 234 and the cathode 216 , respectively.

[0098] In some embodiments, the power supply unit 230 is disposed at the bottom of the housing 220. For example, the bottom of the housing 220 is provided with a gold-plated contact for connecting with the power supply unit 230. It can be understood that only one arrangement of the power supply unit 230 and the housing 220 is given above, but it is not limited thereto. In other embodiments, the power supply unit 230 is not limited to being disposed at the bottom of the housing 220, and can also be disposed in other ways, which are not particularly limited here.

[0099] In some embodiments, see Figure 3 The housing 220 is provided with two accommodating chambers, and the two accommodating chambers are provided with electrolysis units 210. By providing two accommodating chambers, two ophthalmic medical devices can be cleaned at the same time, and there will be no cross contamination between the two ophthalmic medical devices, and the electrolysis conditions can be flexibly adjusted according to the difference in pollutants of the two ophthalmic medical devices.

[0100] In some embodiments, the housing 220 may be, but is not limited to, square.

[0101] In order to make the purpose and advantages of the present application clearer, the ophthalmic medical device cleaning device and cleaning method of the present application and their effects are further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and shall not be used to limit the present application. The following embodiments do not include other components except for unavoidable impurities unless otherwise specified. The drugs and instruments used in the embodiments are conventionally selected in the art unless otherwise specified. The experimental methods for which specific conditions are not specified in the embodiments are implemented according to conventional conditions, such as the conditions described in the literature and books or the methods recommended by the manufacturer.

[0102] Embodiment 1 to Embodiment 7

[0103] Embodiment 1 to Embodiment 7 respectively provide a method for cleaning an ophthalmic medical device, comprising the following steps:

[0104] (1) The contact lenses are placed in two receiving chambers of a cleaning device, wherein the electrolyte in the receiving chamber is a sodium chloride aqueous solution with a mass percentage concentration of 0.05%, the anode is a platinum electrode with a porous structure, and the cathode is a carbon black electrode with a porous structure.

[0105] (2) Connect the anode to the positive pole of the power supply, and the cathode to the negative pole of the power supply, set the current to 0.3A and the voltage to 4V, electrolyze the electrolyte, and generate hydrogen peroxide at the cathode to clean the contact lenses.

[0106] The volume of the electrolyte, the working time, the concentration of hydrogen peroxide at the cathode, the concentration of hypochlorous acid at the anode and the pH value in the above embodiments are shown in Table 1 below.

[0107] Table 1

[0108]

[0109] It can be seen from Table 1 that, under the same other conditions, the concentration of hydrogen peroxide slightly decreases when the electrolyte volume is increased; under the same other conditions, the concentration of hydrogen peroxide slightly increases when the electrolysis time is increased.

[0110] The cleaning effects of the cleaning methods of the above embodiments on contact lenses are as follows:

[0111] Among them, the cleaning effect of contact lenses was tested according to 2.1.10 of the second part of the Disinfection Technical Specifications 2002 Edition of the Disinfection Technical Specifications for Inspection of Disinfection Products.

[0112] The results show that the cleaning methods of the above embodiments can clean contact lenses, meet the standard requirements of the care solution, and the cleaning and sterilization effect reaches 99.99%. In addition, the main sterilization component of the above embodiments is hydrogen peroxide, which is safe, non-irritating, and has no odor.

[0113] Comparative Example 1

[0114] Comparative Example 1 provides a method for cleaning ophthalmic medical devices, which is similar to the cleaning method of Example 1, except that the concentration of the sodium chloride aqueous solution is different. In Comparative Example 1, the mass percentage concentration of the sodium chloride aqueous solution is 0.9%. The other steps are the same as those in Example 1 and will not be repeated.

[0115] Comparative Example 2

[0116] Comparative Example 2 provides a method for cleaning ophthalmic medical devices, which is similar to the cleaning method of Example 1, except that the current is different. In Comparative Example 2, the current is 1.0 A. The other steps are the same as those of Example 1 and will not be repeated.

[0117] Comparative Example 3

[0118] Comparative Example 3 provides a method for cleaning ophthalmic medical devices, which is similar to the cleaning method of Example 1, except that the voltage is different. In Comparative Example 3, the voltage is 12 V. The other steps are the same as those of Example 1 and will not be repeated.

[0119] The concentrations of hydrogen peroxide and hypochlorous acid produced by the cleaning method of the comparative example are shown in Table 2 below.

[0120] Table 2

[0121]

[0122] It can be seen from Table 2 that when the electrolyte concentration in the electrolyte is too high, or the current and voltage parameters are too large, the electrolysis reaction mainly produces ozone and hypochlorous acid, and the hydrogen peroxide concentration is significantly lower than that of the embodiment, which reduces the sterilization and cleaning effects.

[0123] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0124] The above-described embodiments only express several implementation methods of the present application, which is convenient for understanding the technical solution of the present application in detail, but it cannot be understood as limiting the scope of protection of the invention patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the scope of protection of the present application. It should be understood that the technical solutions obtained by those skilled in the art through logical analysis, reasoning or limited experiments on the basis of the technical solutions provided in the present application are all within the scope of protection of the claims attached to the present application. Therefore, the scope of protection of the patent of this application shall be based on the contents of the attached claims, and the description and drawings can be used to explain the contents of the claims.

Claims

1. A method for cleaning ophthalmic medical equipment, characterized in that: The steps include: Placing the ophthalmic medical device in an electrolyte, wherein the electrolyte comprises water and an electrolyte, and the mass percentage concentration of the electrolyte is 0.05% to 0.1%; Under the conditions of a current of 0.2A-0.5A and a voltage of 1.5V-6V, the electrolyte is electrolyzed to generate hydrogen peroxide at the cathode to clean the ophthalmic medical device.

2. The ophthalmic medical device cleaning method according to claim 1, characterized in that: The concentration of hydrogen peroxide generated at the cathode is 2 mg / L to 3.5 mg / L; Optionally, the cathode also generates hydrogen.

3. The ophthalmic medical device cleaning method according to claim 1, characterized in that: The electrolyte includes sodium chloride, and during the electrolysis process, the anode generates hypochlorous acid and oxygen; Optionally, the concentration of hypochlorous acid generated at the anode is 0.2 mg / L to 0.6 mg / L.

4. The ophthalmic medical device cleaning method according to claim 1, characterized in that: The electrolysis time is 5 min to 10 min; and / or, The volume of the electrolyte is 10 mL to 100 mL.

5. The ophthalmic medical device cleaning method according to claim 1, characterized in that: At least one of the cathode and the anode has a porous structure.

6. The ophthalmic medical device cleaning method according to claim 5, characterized in that: The cathode and the anode are each independently selected from a carbon black electrode, a graphite carbon felt electrode or a platinum electrode; And / or, the cathode and the anode are each independently in the shape of a sheet or a cylinder.

7. The ophthalmic medical device cleaning method according to any one of claims 1 to 6, characterized in that: The ophthalmic medical device includes one or more of contact lenses and orthokeratology lenses.

8. An ophthalmic medical instrument cleaning device, characterized in that: include: an electrolytic unit, comprising an electrolyte, an anode and a cathode; A housing, wherein the housing is provided with a receiving cavity for receiving the electrolytic unit and the ophthalmic medical device; a power supply unit, electrically connected to the anode and the cathode; The electrolyte includes water and electrolyte, the mass percentage concentration of the electrolyte is 0.05%~0.1%, the current of the power supply unit is 0.2A~0.5A, and the voltage is 1.5V~6V.

9. The ophthalmic medical instrument cleaning device according to claim 8, characterized in that: The electrolyte includes sodium chloride; And / or, the shell is provided with two accommodating chambers, and the electrolysis unit is arranged in each of the two accommodating chambers.

10. The ophthalmic medical instrument cleaning device according to claim 8, characterized in that: The anode and the cathode are each independently selected from a carbon black electrode, a graphite carbon felt electrode or a platinum electrode; And / or, the anode and the cathode are independently in the shape of a sheet or a cylindrical structure; And / or, at least one of the anode and the cathode has a porous structure.

Images