A nursing device for hard corneal contact lenses and scleral lenses

Abstract

This patent discloses a care device for hard corneal contact lenses and scleral lenses, including a care component, which includes an inner chamber, a first auxiliary chamber and a second auxiliary chamber; a cation exchange membrane is provided between the first auxiliary chamber and the inner chamber, and an anion exchange membrane is provided between the second auxiliary chamber and the inner chamber; at least one first electrode and a second electrode are provided in the first auxiliary chamber, and when powered on, the first electrode is an anode and the second electrode is a cathode; at least one third electrode and at least one fourth electrode are provided in the inner chamber, and when powered on, the third electrode is an anode and the fourth electrode is a cathode; at least one fifth electrode is provided in the second auxiliary chamber, and when powered on, the fifth electrode is an anode. The ingenious structural design of this patent allows the contact lens or scleral lens to be stored in the inner chamber for a long time after the care is completed, which is safe and harmless.

Description

Technical Field

[0001] The utility model relates to the field of contact lens care and sterilization, in particular to a care device for hard corneal contact lenses and scleral lenses. Background Art

[0002] At present, the care of contact lenses or scleral lenses generally adopts manual scrubbing and care with care solutions. The pH value of the care solutions is acidic or alkaline, and most of them are alkaline. These acidic or alkaline care solutions will cause different degrees of damage to the human body, fingers, and contact lenses or scleral lenses. Or some use care devices to automatically clean and sterilize contact lenses or scleral lenses. Experiments have confirmed that if the care solution used is neutral, the cleaning and care effect is general. In order to achieve a good care effect, an alkaline care solution is generally used. In this way, the alkaline care solution needs to be specially prepared, which brings certain cost pressure to users. At the same time, the pH value of the alkaline care solution cannot be flexibly adjusted according to needs, and the flexibility is poor. In addition, the alkaline care solution will bring more inconveniences when stored and used. Therefore, how to use a safe, harmless, cheap, easy to obtain, and low-priced care solution, and achieve a good cleaning and sterilization effect has become an urgent problem to be solved by R&D personnel in the industry.

[0003] Some contact lenses or scleral lenses are cared for with care devices, but generally the lenses need to be removed in time after the care is completed and rinsed before wearing. If they are forgotten to be removed and left for a long time, the lenses may fade or have other adverse effects such as affecting the material. Therefore, how to fully clean and sterilize the contact lenses or scleral lenses, and not affect the lenses after the care is completed, or even leave them continuously, has become a topic that researchers in the industry are paying more and more attention to. Utility Model Content

[0004] In order to solve at least one of the technical problems existing in the current prior art, the utility model provides a technical solution for a care device for hard corneal contact lenses and scleral lenses. The specific solution is as follows:

[0005] The utility model provides a nursing device for hard corneal contact lenses and scleral lenses, comprising a nursing component, wherein the nursing component comprises an inner chamber, a first auxiliary chamber and a second auxiliary chamber; a cation exchange membrane is arranged between the first auxiliary chamber and the inner chamber, an anion exchange membrane is arranged between the second auxiliary chamber and the inner chamber, at least one first electrode and at least one second electrode are arranged in the first auxiliary chamber, when power is turned on, the first electrode is an anode, and the second electrode is a cathode; at least one third electrode and at least one fourth electrode are arranged in the inner chamber, when power is turned on, the third electrode is an anode, and the fourth electrode is a cathode; at least one fifth electrode is arranged in the second auxiliary chamber, when power is turned on, the fifth electrode is an anode.

[0006] The present invention also provides a care device for hard corneal contact lenses and scleral lenses, including a care component, which includes an inner chamber, a first auxiliary chamber, a second auxiliary chamber and a third auxiliary chamber; a cation exchange membrane is arranged between the first auxiliary chamber and the inner chamber, an anion exchange membrane is arranged between the second auxiliary chamber and the inner chamber, and at least one first electrode is arranged in the first auxiliary chamber, and when power is turned on, the first electrode is an anode; at least one third electrode and at least one fourth electrode are arranged in the inner chamber, and when power is turned on, the third electrode is an anode, and the fourth electrode is a cathode; at least one fifth electrode is arranged in the second auxiliary chamber, and when power is turned on, the fifth electrode is an anode; a cation exchange membrane is also arranged between the third auxiliary chamber and the inner chamber, and at least one first electrode is arranged in the third auxiliary chamber, and when power is turned on, the second electrode is a cathode.

[0007] The contact lens is preferably a hard contact lens or a scleral lens.

[0008] As a preferred embodiment of the care device for hard corneal contact lenses and scleral lenses described in the present invention, it also includes a power supply component and a control system. The power supply component is configured to provide power for the care device; the control system is configured to control the operation of the care device.

[0009] As a preferred embodiment of the care device for hard corneal contact lenses and scleral lenses of the present invention, the first electrode is configured to be able to communicate with the fourth electrode;

[0010] The third electrode is configured to communicate with the fourth electrode;

[0011] The second electrode is configured to be communicatively connected to the fifth electrode.

[0012] As a preferred solution of the nursing device for hard corneal contact lenses and scleral lenses described in the utility model, the inner chamber is a circular chamber, and the first auxiliary chamber and the second auxiliary chamber are both arranged around the outer side of the inner chamber.

[0013] As a preferred solution of the nursing device for hard corneal contact lenses and scleral lenses described in the utility model, the nursing component is provided with two nursing chambers;

[0014] The two nursing chambers share a first auxiliary chamber, and the two inner chambers are electrically connected to the first auxiliary chamber through a cation exchange membrane; and / or

[0015] The two nursing chambers share a second auxiliary chamber, and the two inner chambers are electrically connected to the second auxiliary chamber through an anion exchange membrane.

[0016] As a preferred solution of the care device for hard corneal contact lenses and scleral lenses described in the utility model, the third electrode and the fourth electrode are symmetrically arranged in the inner chamber, and the third electrode and the fourth electrode are both close to the side wall of the inner chamber.

[0017] As a preferred embodiment of the nursing device for hard corneal contact lenses and scleral lenses of the utility model, the first electrode, the second electrode, the third electrode, the fourth electrode and the fifth electrode are all electrode probes; and / or

[0018] The first electrode, the third electrode and the fifth electrode are all chlorine evolution electrodes.

[0019] As a preferred solution of the care device for hard corneal contact lenses and scleral lenses described in the utility model, the care component is also provided with a sealing cover, on which a lens clip for accommodating the contact lens or scleral lens is provided, and the sealing cover is closed on the care bin.

[0020] As a preferred embodiment of the nursing device for hard corneal contact lenses and scleral lenses of the utility model, the nursing chamber comprises a nursing chamber body, a cation exchange membrane, an anion exchange membrane, a first bracket, a second bracket and at least two pressing plates, the nursing chamber body is provided with an inner chamber, a first auxiliary chamber and a second auxiliary chamber, and a side wall of the inner chamber is provided with at least two openings, one opening is between the inner chamber and the first auxiliary chamber, and the other opening is between the inner chamber and the second auxiliary chamber;

[0021] The first bracket and the second bracket are both provided with a first through hole, the pressure plate is provided with a second through hole, the opening is provided with a mounting groove, the first bracket is sealably installed in a mounting groove of an opening, the second bracket is sealably installed in a mounting groove of another opening, the cation exchange membrane is sealably arranged between the first through hole of the first bracket and the second through hole of one pressure plate, and the anion exchange membrane is sealably arranged between the first through hole of the second bracket and the second through hole of another pressure plate.

[0022] As a preferred solution of the nursing device for hard corneal contact lenses and scleral lenses described in the utility model, the first bracket and the second bracket are integrally connected through a circular ring, and the circular ring is consistent in shape with the side wall of the inner chamber.

[0023] On the one hand, the present invention also provides a care accessory for hard corneal contact lenses and scleral lenses, including a care component, the care component including an inner chamber, a first auxiliary chamber and a second auxiliary chamber; a cation exchange membrane is arranged between the first auxiliary chamber and the inner chamber, and an anion exchange membrane is arranged between the second auxiliary chamber and the inner chamber, at least one first electrode and at least one second electrode are arranged in the first auxiliary chamber, when power is turned on, the first electrode is an anode, and the second electrode is a cathode; at least one third electrode and at least one fourth electrode are arranged in the inner chamber, when power is turned on, the third electrode is an anode, and the fourth electrode is a cathode; at least one fifth electrode is arranged in the second auxiliary chamber, when power is turned on, the fifth electrode is an anode.

[0024] The present invention also provides a care accessory for hard corneal contact lenses and scleral lenses, including a care component, which includes an inner chamber, a first auxiliary chamber, a second auxiliary chamber and a third auxiliary chamber; a cation exchange membrane is arranged between the first auxiliary chamber and the inner chamber, an anion exchange membrane is arranged between the second auxiliary chamber and the inner chamber, and at least one first electrode is arranged in the first auxiliary chamber, and when power is turned on, the first electrode is an anode; at least one third electrode and at least one fourth electrode are arranged in the inner chamber, and when power is turned on, the third electrode is an anode, and the fourth electrode is a cathode; at least one fifth electrode is arranged in the second auxiliary chamber, and when power is turned on, the fifth electrode is an anode; a cation exchange membrane is also arranged between the third auxiliary chamber and the inner chamber, and at least one first electrode is arranged in the third auxiliary chamber, and when power is turned on, the second electrode is a cathode.

[0025] As a preferred embodiment of the care accessories for hard corneal contact lenses and scleral lenses of the present invention, the first electrode is configured to be able to communicate with the fourth electrode;

[0026] The third electrode is configured to communicate with the fourth electrode;

[0027] The second electrode is configured to be communicatively connected to the fifth electrode.

[0028] As a preferred solution of the care accessories for hard corneal contact lenses and scleral lenses described in the present invention, the inner bin is a circular bin, and the first auxiliary bin and the second auxiliary bin are both arranged around the outside of the inner bin.

[0029] As a preferred solution of the care accessories for hard corneal contact lenses and scleral lenses of the present invention, the care component is provided with two care chambers;

[0030] The two nursing chambers share a first auxiliary chamber, and the two inner chambers are electrically connected to the first auxiliary chamber through a cation exchange membrane; and / or

[0031] The two nursing chambers share a second auxiliary chamber, and the two inner chambers are electrically connected to the second auxiliary chamber through an anion exchange membrane.

[0032] As a preferred solution of the care accessories for hard corneal contact lenses and scleral lenses described in the present invention, the third electrode and the fourth electrode are symmetrically arranged in the inner chamber, and the third electrode and the fourth electrode are both close to the side wall of the inner chamber.

[0033] As a preferred embodiment of the care accessories for hard corneal contact lenses and scleral lenses of the present invention, the first electrode, the second electrode, the third electrode, the fourth electrode and the fifth electrode are all electrode probes; and / or

[0034] The first electrode, the third electrode and the fifth electrode are all chlorine evolution electrodes.

[0035] As a preferred solution of the care accessories for hard corneal contact lenses and scleral lenses described in the present invention, the care component is also provided with a sealing cover, on which a lens clip for accommodating the contact lens or scleral lens is provided, and the sealing cover is closed on the care bin.

[0036] As a preferred embodiment of the nursing accessories for hard corneal contact lenses and scleral lenses of the present invention, the nursing chamber comprises a nursing chamber body, a cation exchange membrane, an anion exchange membrane, a first bracket, a second bracket and at least two pressing plates, the nursing chamber body is provided with an inner chamber, a first auxiliary chamber and a second auxiliary chamber, and a side wall of the inner chamber is provided with at least two openings, one opening is between the inner chamber and the first auxiliary chamber, and the other opening is between the inner chamber and the second auxiliary chamber;

[0037] The first bracket and the second bracket are both provided with a first through hole, the pressure plate is provided with a second through hole, the opening is provided with a mounting groove, the first bracket is sealably installed in a mounting groove of an opening, the second bracket is sealably installed in a mounting groove of another opening, the cation exchange membrane is sealably arranged between the first through hole of the first bracket and the second through hole of one pressure plate, and the anion exchange membrane is sealably arranged between the first through hole of the second bracket and the second through hole of another pressure plate.

[0038] As a preferred solution of the care accessories for hard corneal contact lenses and scleral lenses described in the present invention, the first bracket and the second bracket are integrally connected by a circular ring, and the circular ring is consistent in shape with the side wall of the inner chamber.

[0039] Compared with the prior art, the technical solution described in this patent has at least one or more of the following beneficial effects:

[0040] The ingenious structural design and nursing method design of this patent enable the solution in the inner chamber of the contact lens or scleral lens to become a pure water solution after the nursing is completed. The pure water solution has no side effects on the contact lens or scleral lens, and the contact lens or scleral lens can be stored in the inner chamber for a long time. The nursing device provided by the utility model can keep the contact lens or scleral lens in the inner chamber after cleaning and nursing, without the need to transfer to other chambers or pour out the nursing solution to replace it with a solution that can be stored for a long time. The contact lens or scleral lens can continue to be stored in the nursing chamber after the nursing in the nursing chamber is completed, and it does not need to be taken out. It is safe and harmless, and no other operations are required. When it needs to be worn, it can be taken out from the inner chamber and worn, which is very convenient for customers to use.

[0041] The first auxiliary chamber and the second auxiliary chamber are arranged outside the inner chamber in a one-to-one correspondence. Different care chambers are cleaned and cared for separately to avoid interference between different lenses and different reaction processes. At the same time, the design is more beautiful in appearance and more intuitive in operation, which is convenient for users to operate and avoid misoperation, bringing consumers a better and more comfortable user experience. The design method of the first auxiliary chamber and the second auxiliary chamber being arranged outside the inner chamber makes full use of space, has a more reasonable design, and effectively reduces the volume of the care components.

[0042] This patent uses a neutral NaCl solution as the original solution for care, which is cheap and easy to obtain, reducing the care cost for consumers. The neutral NaCl solution does not contain any acidic or alkaline substances, has no acid-base corrosiveness, no chemical hazards, is highly safe, and greatly reduces the cost of production, storage, and transportation.

[0043] This patent uses a special structure and a special method to automatically adjust the pH value in the solution, and has high flexibility. By setting up a first auxiliary chamber and a cation exchange membrane to provide an alkaline environment for the solution in the inner chamber, the first auxiliary chamber can adjust the pH value in the inner chamber, so that the care stock solution only needs a neutral NaCl solution. This care stock solution is not only highly versatile and easy to obtain, but also contains no acidic or alkaline substances, which is safe and harmless, and brings great convenience to user operation, production, storage and transportation. In addition, the inner chamber is in an alkaline environment, which inhibits the production of HClO. Most of the hypochlorite ions exist in the form of NaClO. The bactericidal and protein-removing effect of NaClO is relatively mild. The bleaching performance of sodium hypochlorite solution in an alkaline environment is poor, which can prevent the lens from fading. The ClO in NaClO - Ions can kill bacteria, degrade proteins, and remove proteins with the help of electrophoresis.

[0044] At the same time, the first auxiliary chamber and the second auxiliary chamber cooperate with each other, so that after the contact lens or scleral lens care is completed, the solution containing the contact lens or scleral lens can be converted into a pure aqueous solution, which is convenient for long-term storage of the contact lens or scleral lens.

[0045] The patented electrochemical cleaning and sterilization technology has a good sterilization and protein removal effect, effectively degrades protein, and sterilizes immediately. The sterilization and protein removal process does not damage the contact lens or scleral lens itself, has good stability, and low toxic side effects. The device is used for automatic cleaning, without manual scrubbing and contact with the care solution, reducing harm to the human body. The sterilization and protein removal time of contact lenses or scleral lenses is short, only 20-60 minutes. Conventional care solutions take at least 2-4 hours and require manual scrubbing, which is time-consuming and laborious.

[0046] At least the anode in the inner bin and the auxiliary bin is a chlorine-forming electrode. In the sodium chloride solution, the anode undergoes an oxidation reaction to separate the chloride ions in the solution into chlorine gas. The chlorine-forming electrode has strong corrosion resistance, strong chlorine resistance and acid resistance, good stability, good oxidation resistance, and long working life. It can avoid the anode itself from reacting or producing other products to pollute the electrolyte or cathode products; it can make the bubbles between the electrodes and on the electrode surface easy to discharge, which can effectively reduce the voltage in the electrolytic cell; the shape is easy to make and has a high degree of refinement. Generally, metal electrodes are mainly ruthenium, iridium, and platinum. Other inert electrodes (such as graphite and graphene materials) can also be used as chlorine-forming electrodes while ensuring the stability of the material morphology. The electrode can also be a coated electrode. The electrode substrate preferably adopts titanium or titanium alloy substrate, and then the electrode substrate is coated with metal coatings such as ruthenium, iridium, and platinum. The cathode and anode are preferably symmetrically distributed on both sides of the inner bin, and the cathode and anode are close to the side wall of the inner bin to have a better protein removal effect.

[0047] The commonly used care solutions on the market are easy to damage contact lenses or scleral lenses, and the sterilization rate can only be maintained at about 90%. This patent achieves instant sterilization, not only with good sterilization effect, but also with fast sterilization speed. The bacteria killing rate is 99% in 3 minutes, the fungus killing rate is 99%, and Bacillus subtilis is killed in 10 minutes, reaching the sterilization level. And the care solutions on the market cannot enter the eyes directly. If the user forgets to rinse the contact lens or scleral lens after the care is completed, the care solution remaining on the contact lens or scleral lens will cause damage to the eyes. The contact lens or scleral lens after the care of this patent is placed in a clear water solution and can enter the eyes directly. If the contact lens or scleral lens after cleaning is forgotten to be rinsed and worn, it will not cause damage to the eyes. At the same time, AB liquid contains potassium bromide, which produces liquid bromine when used. Liquid bromine will corrode the contact lens or scleral lens coating, causing the coating to fall off. The coating falling off not only affects the service life of the contact lens or scleral lens, but the falling coating falling into the eyes will cause inflammation and other problems, and bromine will also remain on the contact lens or scleral lens, which will affect safety.

[0048] After the third electrode and the fourth electrode in the inner chamber of the present invention are energized, the chloride ion solution can generate several types of oxidizing substances and free radicals under their action, especially hypochlorous acid and hypochlorite ions, which can destroy the peptide chain of the protein. The mass concentration of hypochlorite ions in the present invention is preferably 0.1%, and the hypochlorite ion concentration of liquid A in the AB liquid is 0.375%. Although the AB liquid can obtain a good sterilization and protein removal effect, the contact lens or scleral lens cannot be immersed in the AB liquid for a long time, otherwise the AB liquid will cause damage to the contact lens, such as fading, corrosion, etc. Since the present invention is superimposed with electrophoresis technology, the preferred 0.1% concentration of hypochlorite ions is less than one-third of the AB liquid, which can obtain a good sterilization and protein removal effect, is safer to use, and is more convenient to operate. By properly controlling relevant parameters, the fading of the contact lens or scleral lens can be reduced, and the coating damage and corrosion can be avoided.

[0049] The mass concentration range of hypochlorite ions in the utility model is controlled at 0.01%-0.4%. Through a large number of long-term studies, researchers have found the optimal concentration range of hypochlorite ions, and have found that the concentration of hypochlorite ions can be better maintained in the optimal range according to certain experimental conditions, including the optimal concentration of sodium chloride solution at 0.9%, the start-up voltage of the third electrode and the fourth electrode when the power is turned on is not less than 1.1V, and the stable voltage range of stable operation after the power is turned on is 3.5-6.5V. The reaction time after the power is turned on is 10-30 minutes.

[0050] The chloride ion solution of this patent can generate hydroxyl radicals (OH·), oxygen free radicals (O·), chlorine free radicals (Cl·), hydrogen peroxide (H2O2), ozone (O3), hypochlorite (ClO - ), hypochlorous acid (HClO), chlorine gas (Cl2), hydrogen ion (H + ) and other substances, plus electrophoresis under specific conditions, the protein removal and sterilization effects are good, no worse than AB liquid. And compared with AB liquid, the concentration of hypochlorite ions produced by the reaction is only less than one-third of AB liquid, which is safer to use and more convenient to operate.

[0051] Compared with the traditional method of rubbing hands to clean contact lenses or scleral lenses on the market, the electric field force of electrophoretic dissociation only acts on the charged particles on the lens, such as proteins, bacteria, fungi, etc., and more specifically separates the denatured proteins on the lens from the lens without damaging the lens itself. This can avoid problems such as insufficient rubbing force generated by rubbing the lens by hand, resulting in inadequate removal of deposited proteins, excessive rubbing force resulting in lens breakage, uneven rubbing force resulting in lens deformation or scratches, insufficient finger cleaning resulting in scratches on the lens or bacterial infection, etc.

[0052] The contact lens or scleral lens cleaning and care technology of the utility model can kill bacteria and other microorganisms, and its sterilization principle mainly includes the following aspects:

[0053] 1. Electrolysis produces hypochlorous acid, blocking the bacterial protein synthesis link

[0054] Electrolysis of chloride ion solution produces hypochlorous acid, which is an oxidant with strong oxidizing ability. The bactericidal principle of hypochlorous acid is to oxidize the protein in microorganisms to denature them, so that the microorganisms cannot replicate normally and lose their ability to survive. The microbial killing effect of hypochlorous acid is 80 times that of hypochlorite ions. It can produce hydroxyl free radicals and act on different bacteria. In addition, with long-term use, bacteria will not develop resistance to electrolyzed saline, and it has no toxic side effects on the cornea.

[0055] 2. Electroincorporation: Electroincorporation is the process of incorporating substances from a solution into cells under the action of an electric field. Based on the effect of an external electric field on bacterial growth, activity, metabolism, morphology, and movement, combined with the generation of hydroxyl radicals (OH·), oxygen radicals (O·), chlorine radicals (Cl·), hydrogen peroxide (H2O2), ozone (O3), hypochlorite (ClO - ), hypochlorous acid (HClO), chlorine gas (Cl2), hydrogen ion (H + ) and others have obtained a new sterilization and protein removal technology. Applying an electric current of appropriate intensity can, on the one hand, interfere with the gene expression of cells, inhibit the activity of ATPase, reduce the protein content in bacterial cells, affect the free radical reaction and the synthesis of biopolymers in cells, and inhibit the reproduction level of cells by neutralizing the negative charge on the cell surface, ultimately leading to cell apoptosis, aging and death. On the other hand, it can enhance the permeability of microbial cells and cause them to undergo electrical mixing, even if hydroxyl radicals (OH·), oxygen free radicals (O·), chlorine free radicals (Cl·), hydrogen peroxide (H2O2), ozone (O3), hypochlorite (ClO - ), hypochlorous acid (HClO), chlorine gas (Cl2), hydrogen ion (H + ) penetrate into microbial cells, produce cytotoxicity, induce cell structure and function disorders, and achieve the effect of inactivation, sterilization and disinfection.

[0056] 3. Micro-electrolysis produces active substances, destroying the chain structure of cell organic matter

[0057] Under the action of the physical field, the power-on state controls the current density, and the excited electrons are transferred from the anode to the cathode through the medium water. During the transfer process, oxidizing substances such as O free radicals and ClO - , Cl - OH - , H2O2, etc. These active substances can react with any molecules of living cells such as sugar, phospholipids, organic acids, etc., and the reaction speed is fast, destroying the cell membrane and penetrating into the cell membrane to destroy the chain structure of organic matter, oxidizing the RNA and DNA of bacterial cells and causing them to be inactivated or die. At the same time, bacteria are generally negatively charged in water, and will migrate and aggregate to the anode, which can cause bacterial discharge and direct death.

[0058] 4. Microcurrent pierces the bacterial cell wall and quickly oxidizes bacterial RNA / DNA

[0059] The electric current acts directly on the cell wall, which can directly cause mechanical damage to the bacteria in the solution and enhance the oxidation of bacterial and viral RNA\DNA.

[0060] 5. Microcurrent breaks up bacterial clusters and reduces bacterial tolerance

[0061] The electric current changes the dispersion environment of bacteria in water, and the stable state of mixed aggregation is significantly reduced. When bacteria and viruses are regarded as a colloidal system composed of water, protein and nucleic acid, the microcurrent reduces the stability of bacteria, thereby reducing the tolerance of bacteria to hypochlorous acid.

[0062] 6. Electronically activated water increases the contact surface between hypochlorous acid and bacteria

[0063] The properties of water depend on the structural changes of the electrons in water molecules, mainly the changes in the distribution, shape and direction of the electron cloud. Studies have confirmed that the electron cloud can be changed by the external environment. Under the action of low voltage and microcurrent, 4 pairs of electrons in water molecules jump from low orbits to high orbits, and the electron energy level increases, resulting in the loss of potential energy of activated water molecules, causing their potential to drop, and the potential difference between water molecules and the interface (microorganism surface) to decrease. This change may affect the aggregation state of bacteria and virus particles. In addition, the grass-green streptococci, Pseudomonas aeruginosa, Staphylococcus aureus, etc. that are often found on contact lenses or scleral lenses are all hydrophilic bacteria. After the action of microcurrent, hypochlorous acid is easier to contact with bacteria, thereby improving the sterilization efficiency.

[0064] A flexible net is provided in the flushing chamber. When the contact lens or scleral lens is flushed by ultrasonic vibration, the flexible net can physically clean the surface of the contact lens or scleral lens, thereby making the flushing and cleaning of the surface of the contact lens or scleral lens cleaner and more thorough.

[0065] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0067] Figure 1 It is a schematic diagram of the exploded structure of the nursing device described in this patent;

[0068] Figure 2 It is a schematic diagram of the three-dimensional structure of the nursing device described in this patent;

[0069] Figure 3 It is a schematic diagram of the exploded structure of the care component described in this patent;

[0070] Figure 4 It is a three-dimensional structural schematic diagram of the care component described in this patent;

[0071] Figure 5 yes Figure 4 A schematic cross-sectional view of the nursing component from one viewing angle;

[0072] Figure 6 yes Figure 4 A schematic cross-sectional view of the nursing component from another perspective;

[0073] Figure 7 It is a three-dimensional structural schematic diagram of the nursing component described in this patent with the sealing cover removed;

[0074] Figure 8 It is a three-dimensional structural diagram of the nursing chamber body and electrodes described in this patent;

[0075] Fig. 9 It is a three-dimensional structural schematic diagram of the bracket described in this patent;

[0076] Fig.10 It is a three-dimensional structural schematic diagram of the sealing ring described in this patent;

[0077] Fig.11 It is a three-dimensional structural schematic diagram of the pressing plate described in this patent;

[0078] Fig.12 It is a three-dimensional structural schematic diagram of the sealing cover described in this patent;

[0079] Fig.13 is a schematic diagram of the exploded structure of the electrode, cap and conductive contact described in this patent;

[0080] Fig.14 It is a schematic diagram of the three-dimensional structure of the electrode, cap and conductive contact described in this patent;

[0081] Fig.15 It is a structural schematic diagram of another embodiment of the care component described in this patent;

[0082] Fig.16 This is a schematic diagram showing the change of effective chlorine concentration in the inner chamber with stable voltage and time during lens care in step S4 of the care method described in this patent;

[0083] Fig.17 This is a comparison chart showing whether the lens fades after being cared for using the care method described in this patent and the conventional care method.

[0084] Among them, 10-care component, 101-care chamber, 1-inner chamber, 2-first auxiliary chamber, 3-second auxiliary chamber, 4-sealing cover, 5-bottom cover, 6-base, 11-cation exchange membrane, 12-anion exchange membrane, 13-third electrode, 14-fourth electrode, 15-care chamber body, 151-opening, 152-mounting groove, 16-first exchange membrane assembly, 161-bracket, 1611-first through hole, 1612-membrane mounting groove, 1613-pressing plate mounting groove, 1614-first bracket, 1615-second bracket, 1616-circular ring, 162 -pressing plate, 1621-second through hole, 1622-sealing ring rib, 163-sealing ring, 17-second exchange membrane assembly, 18-sinking groove, 191-main area, 192-expansion area, 21-first electrode, 22-second electrode, 31-fifth electrode, 41-lens clip, 51-conductive contact, 511-limiting ring, 52-cap, 521-installation port, 522-spring, 61-care groove, 611-electrical contact point, 612-limiting structure, 62-control panel, 63-flushing chamber, 64-accessory receiving groove, 9-hard corneal contact lens or scleral lens. DETAILED DESCRIPTION

[0085] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and should not be construed as limitations on the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model.

[0086] In the description of the present utility model, it is necessary to understand that the terms "upper", "lower", "top", "bottom", "inside", "outside", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "first", "second", "third", "fourth", and "fifth" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0087] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "provided with", "equipped with", "connected", "installed with", "set", "opened", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0088] See also Figure 1-17 ,like Figure 1-17 As shown, on the one hand, the utility model provides a care device for hard corneal contact lenses and scleral lenses, including a care component, on which a care chamber is arranged, the care chamber comprising an inner chamber 1, a first auxiliary chamber 2 and a second auxiliary chamber 3; a cation exchange membrane 11 is arranged between the first auxiliary chamber 2 and the inner chamber 1, and an anion exchange membrane 12 is arranged between the second auxiliary chamber 3 and the inner chamber 1, at least one first electrode 21 and at least one second electrode 22 are arranged in the first auxiliary chamber 2, when power is turned on, the first electrode 21 is an anode, and the second electrode 22 is a cathode; at least one third electrode 13 and at least one fourth electrode 14 are arranged in the inner chamber 1, when power is turned on, the third electrode 13 is an anode, and the fourth electrode 14 is a cathode; at least one fifth electrode 31 is arranged in the second auxiliary chamber 3, when power is turned on, the fifth electrode 31 is an anode.

[0089] Preferably, the nursing device further comprises a power supply component and a control system, wherein the power supply component is configured to provide power to the nursing device; and the control system is configured to control the operation of the nursing device.

[0090] Preferably, the power supply component can be a dry cell battery, a button cell battery, a rechargeable battery or a power cord, etc. The power cord is connected to an external power source, and this patent does not impose any restrictions.

[0091] Preferably, the nursing component is provided with two nursing chambers, and two contact lenses or scleral lenses are respectively placed in corresponding nursing chambers for cleaning, nursing or storage. In the example, the nursing chamber is a circular chamber. Preferably, the nursing component is an elliptical one, and the two nursing chambers are connected and arranged in one piece.

[0092] In a preferred embodiment, the first auxiliary warehouse 2 and the second auxiliary warehouse 3 are both arranged around the outside of the inner warehouse. Further preferably, the first auxiliary warehouse 2 and the second auxiliary warehouse 3 are semi-annular warehouses respectively, and the two semi-annular warehouses form an annular arrangement around the outside of the inner warehouse. In the example, the inner warehouse 1, the first auxiliary warehouse 2 and the second auxiliary warehouse 3 are connected as one. Further preferably, the inner warehouse 1, the first auxiliary warehouse 2 and the second auxiliary warehouse 3 correspond one to one. The first auxiliary warehouse and the second auxiliary warehouse are arranged outside the inner warehouse in a one-to-one correspondence, and different care warehouses are cleaned and cared for separately to avoid mutual interference between different lenses and different reaction processes. At the same time, the design is more beautiful in appearance and more intuitive in operation, which is convenient for users to operate and avoid misoperation, bringing consumers a better and more comfortable user experience.

[0093] The design method of surrounding the first auxiliary compartment and the second auxiliary compartment outside the inner compartment fully utilizes the space, has a more reasonable design, and effectively reduces the volume of the nursing component.

[0094] Of course, in other embodiments, such as Fig.15 As shown, the first auxiliary bin and the second auxiliary bin may also be arranged on the side edges of the inner bin, such as two opposite sides or adjacent sides, etc.

[0095] In a preferred embodiment, two nursing compartments are provided on the nursing component.

[0096] Preferably, a first auxiliary chamber is provided on the care component, and both inner chambers are electrically connected to the first auxiliary chamber through a cation exchange membrane; and / or

[0097] A second auxiliary chamber is arranged on the nursing component, and the two inner chambers are electrically connected to the second auxiliary chamber through an anion exchange membrane.

[0098] Preferably, the third electrode and the fourth electrode are symmetrically arranged in the inner chamber 1 , and the third electrode and the fourth electrode are both close to the side wall of the inner chamber 1 .

[0099] Preferably, the first electrode 21, the second electrode 22, the third electrode 13, the fourth electrode 14 and the fifth electrode 31 are all electrode probes. Of course, the present invention is not limited thereto, and they may also be electrode sheets and the like.

[0100] Preferably, the first electrode, the third electrode and the fifth electrode are all chlorine evolution electrodes. Further preferably, the second electrode and the fourth electrode are also chlorine evolution electrodes.

[0101] Preferably, the number of the first electrode 21, the second electrode 22, the third electrode 13, the fourth electrode 14 and the fifth electrode 31 are all the same. In the example, there is one first electrode 21, one second electrode 22, one third electrode 13, one fourth electrode 14 and one fifth electrode 31, but there can be two or more, which is not limited in this patent.

[0102] Preferably, the care component is also provided with a sealing cover 4, on which a lens clip 41 for accommodating a contact lens or a scleral lens is provided, and the sealing cover 4 is sealed and covered on the care bin. It should be noted that the sealing cover can be covered on two care bins at the same time, or a sealing cover is configured for each care bin designed by the sealing cover, and this patent does not limit this. In the example, the lens clip 41 is configured to keep the contact lens or scleral lens contained in the solution of the inner bin 1. Further preferably, the lens clip 41 is a vertical lens clip, and the lens clip 41 is configured to keep the contact lens or scleral lens vertically contained in the solution of the inner bin 1. Further preferably, the center line of the contact lens or scleral lens is arranged perpendicular to the straight line connecting the third electrode and the fourth electrode. The lens clip is arranged so that the contact lens or scleral lens can be vertically contained in the chloride ion solution during the protein removal and sterilization process, so as not to move or shake and affect the protein removal and sterilization effect or damage the contact lens or scleral lens. Further preferably, the lens clip 41 is a flexible lens clip. The flexible lens clip facilitates the removal and placement of contact lenses or scleral lenses while also preventing damage to the contact lenses or scleral lenses.

[0103] In a preferred embodiment, Figure 3-11 As shown, the nursing warehouse includes a nursing warehouse body 15, a first exchange membrane assembly 16 and a second exchange membrane assembly 17. The first exchange membrane assembly 16 is fixedly provided with a cation exchange membrane 11, and the second exchange membrane assembly 17 is fixedly provided with an anion exchange membrane 12. Two openings 151 are provided on the side wall of the nursing warehouse body 15. The first exchange membrane assembly 16 is sealed and installed on one opening 151, and the second exchange membrane assembly 171 is sealed and installed on the other opening 151.

[0104] In the example, a mounting groove 152 is provided on the opening 151, and an ultrasonic line is provided at the corresponding position of the first exchange membrane assembly 16 and the mounting groove 152, and the first exchange membrane assembly 16 is ultrasonically welded in the mounting groove 152. Similarly, an ultrasonic line is also provided at the corresponding position of the second exchange membrane assembly 17 and the mounting groove 152, and the second exchange membrane assembly 17 is ultrasonically welded in the mounting groove 152.

[0105] The first exchange membrane assembly 16 includes a bracket 161, a pressure plate 162 and a cation exchange membrane 11. The bracket 161 is provided with a first through hole 1611, and the pressure plate 162 is provided with a second through hole 1621. The first through hole corresponds to the second through hole. The cation exchange membrane 11 is sealed and covered on the first through hole 1611, and the pressure plate seals and presses the cation exchange membrane 11 on the bracket 161. In the example, the bracket 161 is provided with a membrane mounting groove 1612 and a pressure plate mounting groove 1613. The pressure plate mounting groove 1613 is larger than the membrane mounting groove 1612. The cation exchange membrane 11 is accommodated in the membrane mounting groove 1612, and the pressure plate is accommodated in the pressure plate mounting groove 1613. Preferably, it also includes a sealing ring 163, and the pressure plate 162 presses the sealing ring 163 and the cation exchange membrane 11 in the membrane mounting groove 1612 of the bracket 161. Further preferably, the pressing plate 162 is provided with a sealing ring rib 1622, the sealing ring rib 1622 corresponds to the sealing ring 163, and the sealing ring rib 1622 presses the sealing ring 163 and the cation exchange membrane 11 on the bracket 161. The sealing ring is provided to prevent the solution in the inner chamber and the first auxiliary chamber, or the solution in the inner chamber and the second auxiliary chamber from leaking into each other. Preferably, the pressing plate 162 is also provided with an annular ultrasonic line, which is located outside the sealing ring and the sealing ring rib 1622, and the pressing plate 162 is ultrasonically welded to the pressing plate mounting groove 1613 of the bracket 161 through the annular ultrasonic line.

[0106] The second exchange membrane assembly 17 includes a bracket 161, a pressure plate 162 and an anion exchange membrane 12. The bracket 161 is provided with a first through hole 1611, and the pressure plate 162 is provided with a second through hole 1621. The first through hole corresponds to the second through hole. The anion exchange membrane 12 is sealed and covered on the first through hole 1611, and the pressure plate seals and presses the anion exchange membrane 12 on the bracket 161. In the example, the bracket 161 is provided with a membrane mounting groove 1612 and a pressure plate mounting groove 1613. The pressure plate mounting groove 1613 is larger than the membrane mounting groove 1612. The anion exchange membrane 12 is accommodated in the membrane mounting groove 1612, and the pressure plate is accommodated in the pressure plate mounting groove 1613. Preferably, it also includes a sealing ring 163, and the pressure plate 162 presses the sealing ring 163 and the anion exchange membrane 12 in the membrane mounting groove 1612 of the bracket 161. Further preferably, the pressing plate 162 is provided with a sealing ring rib 1622, the sealing ring rib 1622 corresponds to the sealing ring 163, and the sealing ring rib 1622 presses the sealing ring 163 and the anion exchange membrane 12 on the bracket 161. The sealing ring is provided to prevent the solution in the inner chamber and the first auxiliary chamber, or the solution in the inner chamber and the second auxiliary chamber from leaking into each other. Preferably, the pressing plate 162 is also provided with an annular ultrasonic line, which is located on the outside of the sealing ring and the sealing ring rib 1622, and the pressing plate 162 is ultrasonically welded to the pressing plate mounting groove 1613 of the bracket 161 through the annular ultrasonic line.

[0107] In the example, the bracket of the first exchange membrane assembly 16 is the first bracket 1614, the bracket of the second exchange membrane assembly 17 is the second bracket 1615, the first bracket 1614 and the second bracket 1615 are connected as one body, and the first bracket 1614 and the second bracket 1615 are connected as one body through a circular ring 1616, and the circular ring 1616 is consistent with the shape of the inner warehouse side wall. In the example, the first bracket 1614, the second bracket 1615, the circular ring 1616 and the connection between the inner warehouse body side wall are provided with ultrasonic lines, and the first bracket 1614, the second bracket 1615, and the circular ring 1616 are sealed and connected to the nursing warehouse body 15 by ultrasonic welding. Preferably, the first bracket 1614 and the second bracket 1615 are arranged in mirror symmetry. Of course, the first bracket and the second bracket may also be different, and / or the two openings may also be different, and / or the two pressure plates may also be different, etc. This patent does not limit this and can be flexibly adjusted as needed.

[0108] The first electrode 21, the second electrode 22, the third electrode 13, the fourth electrode 14 and the fifth electrode 31 are collectively referred to as electrodes. In the example, the electrode is an electrode probe. Of course, the electrode can also be an electrode sheet, etc., and this patent is not limited to this.

[0109] Preferably, a sinking groove 18 is provided at the bottom of the inner bin. The third electrode and the fourth electrode are not provided in the sinking groove 18.

[0110] Preferably, the inner warehouse includes a main area 191 and at least two expansion areas 192, at least two expansion areas 192 are located outside the main area 191, the expansion area 192 and the main area 191 are connected, and the third electrode and the fourth electrode are placed in the expansion area 192. In the example, the sinking groove 18 corresponds to the main area 191. In the example, the main area 191 is circular. In the example, there are two expansion areas 192, and the two expansion areas 192 are symmetrically arranged outside the main area 191. In the example, the third electrode is arranged in one expansion area 192, and the fourth electrode is arranged in another expansion area 192. Further preferably, the first auxiliary warehouse and the second auxiliary warehouse are both semi-annular, and the first auxiliary warehouse and the second auxiliary warehouse form an annular winding outside the inner warehouse, and the nursing warehouse composed of the inner warehouse, the first auxiliary warehouse and the second auxiliary warehouse is circular. The third electrode and the fourth electrode are arranged in the expansion area, which can increase the distance between the electrodes without increasing the volume of the nursing component.

[0111] The nursing component is also provided with a bottom cover 5. The bottom cover 5 is provided with a receiving cavity, one end of the electrode extends from the bottom of the nursing chamber into the nursing chamber, and the other end of the electrode is received in the receiving cavity.

[0112] Preferably, it further includes a conductive contact 51, which is electrically connected to the electrode and extends from the bottom cover 5. In the example, the conductive contact 51 extends from the bottom of the bottom cover 5. Of course, the conductive contact 51 can also extend from the side wall of the bottom cover 5, which is not limited in this patent.

[0113] In the example, a cap 52 is installed at the other end of the electrode, a conductive contact is installed on the cap, and a limit ring 511 is provided at one end of the conductive contact close to the electrode, and the limit ring 511 is configured to limit the conductive contact from falling out of the care component. Preferably, the cap 52 is sleeved on the other end of the electrode, and a mounting opening 521 is provided on the cap 52, and a spring 522 is provided on the cap 52, and the spring 522 extends to a position corresponding to the mounting opening 521. In the example, the conductive contact 51 is in elastic contact with the spring 522, and when the conductive contact 51 is pressed, the end of the conductive contact 51 close to the electrode is accommodated in the mounting opening 521. The provision of the spring facilitates the electrical connection between the conductive contact and the electrode to avoid loosening or poor contact, and also makes the conductive contact elastic, thereby improving the stability of the conductive contact and the convenience of use.

[0114] In the example, the first electrodes of the two nursing chambers are connected in series, and then a cap and a conductive contact are installed on one of the first electrodes, and so on, the second electrode, the third electrode, the fourth electrode and the fifth electrode, the same electrodes in the two nursing chambers are electrically connected, and a cap and a conductive contact are installed on one of the electrodes, so there are five conductive contacts. In the example, the same electrodes in the two nursing chambers are connected in series through wires. In the example, the conductive end is wound as a coil spring, and the coil spring is sleeved on the cap. Of course, the same electrodes of the two nursing chambers can also be connected in series through a circuit board, and then electrically connected to the corresponding conductive contacts after series connection, or the conductive contacts are also electrically connected to the circuit board, and the corresponding electrodes of the nursing chambers are electrically connected to the corresponding conductive contacts through the circuit board. The use of a spring to connect to the second electrode contact is convenient for assembly, the elastic contact is not easy to loosen, the assembly accuracy requirements are not high, and the stability is good.

[0115] In a preferred embodiment, the nursing device further comprises a base 6, a nursing tank 61 is provided on the base 6, and the nursing component is placed in the nursing tank 61. An electrical contact point 611 is provided in the nursing tank 61, and the electrical contact point 611 is electrically connected to the conductive contact points on the nursing component in a one-to-one correspondence. Preferably, the nursing component is magnetically attracted to the nursing tank.

[0116] Preferably, a limiting structure 612 is provided in the nursing groove 61, and a limiting member matching the limiting structure 612 is provided on the nursing component 10. The limiting structure can limit the nursing component to be correctly placed in the nursing groove, so as to facilitate the correct connection of the circuit on the nursing component. In the example, the limiting member on the nursing component 10 is a limiting protrusion, and the limiting member on the nursing bin is a limiting groove. Of course, this patent is not limited to this.

[0117] In the example, a control panel 62 is also provided on the base, and the control panel can control the operation of the nursing device through the PCB board and the control system.

[0118] In the example, a PCB board is also provided in the base, and the electrical contact points and the control panel in the nursing tank are electrically connected to the PCB board.

[0119] In a preferred embodiment, Figure 1-2 As shown, a flushing chamber 63 is also provided on the base. The flushing chamber is configured to flush the contact lens or scleral lens, or to moisten the lens before wearing the contact lens or scleral lens. Specifically, sterile saline or multifunctional eye-friendly care solution is poured into the flushing chamber, the cover is taken, the contact lens or scleral lens limited on the lens clip is transferred to the flushing chamber 63, the flushing chamber 63 is started, and the contact lens or scleral lens is flushed and moistened. Preferably, the flushing chamber 63 is an ultrasonic vibration flushing chamber. Of course, there may be other flushing methods, which are not limited by this patent. Further preferably, a flexible net (not shown in the figure) is also provided in the flushing chamber 63, and the lens clip containing the contact lens or scleral lens is placed in the flexible net. Preferably, the shape of the flexible net matches the shape of the lens clip containing the contact lens or scleral lens. The flexible net is placed in the flushing chamber, and the lens clip containing the contact lens or scleral lens is placed in the flushing chamber. The flushing mode is turned on to flush the contact lens or scleral lens. After the flushing is completed, the contact lens or scleral lens can be worn into the eye. Preferably, an ultrasonic component is provided at the bottom of the flushing chamber 63. Preferably, the flexible net is detachable and placed in the flushing chamber. It is convenient to thoroughly clean or sterilize the flexible net regularly or irregularly. When the flexible net is provided, when the contact lens or scleral lens is ultrasonically vibrated and flushed, the flexible net can physically clean the surface of the contact lens or scleral lens, which can make the flushing and cleaning of the contact lens or scleral lens surface cleaner and more thorough.

[0120] Preferably, Figure 1-2 As shown, the base is also provided with an accessory receiving slot 64, and the accessory receiving slot 64 is configured to receive tweezers and / or a suction rod and the like.

[0121] Preferably, the base is also provided with an upper cover (not shown in the figure), and the upper cover at least covers the nursing chamber. In the example, the upper cover covers the nursing chamber, the flushing chamber and the accessory receiving slot.

[0122] In addition, the nursing method of the nursing device of the utility model is as follows:

[0123] S1: Pour a chloride ion solution into the inner chamber and the auxiliary chamber, and place the contact lens or scleral lens in the chloride ion solution in the inner chamber;

[0124] S2: Connect the first electrode and the fourth electrode to a power source, the first electrode is an anode, the fourth electrode is a cathode, an oxidation reaction occurs at the first electrode, and the first electrode converts the Cl in the chloride ion solution in the first auxiliary chamber into - Electrolysis is Cl2, which dissolves in the solution to produce HCl and HClO. The fourth electrode undergoes a reduction reaction, and the fourth electrode electrolyzes the H2O in the chloride ion solution in the inner chamber to produce H2 and OH. - , providing an alkaline environment for the inner chamber;

[0125] S3: After the reaction of step S2, the power supply of the first electrode and the fourth electrode is disconnected, the power supply of the third electrode and the fourth electrode is connected, and the contact lens or scleral lens is cleaned and cared for by electrophoresis and / or dissociation technology;

[0126] S4: After the cleaning and care of the contact lens or scleral lens is completed, the power supply of the third electrode and the fourth electrode is disconnected, and the power supply of the second electrode and the fifth electrode is connected. The fifth electrode is the anode, and the second electrode is the cathode. Under the action of the electric field, the ClO in the inner chamber - OH - , Cl - The H in the inner chamber enters the second auxiliary chamber through the anion exchange membrane. + 、Na + Enter the first auxiliary chamber through the cation exchange membrane.

[0127] Preferably, the auxiliary chamber includes at least a first auxiliary chamber and a second auxiliary chamber.

[0128] Specifically, the auxiliary chamber includes a first auxiliary chamber and a second auxiliary chamber; a cation exchange membrane is arranged between the inner chamber and the first auxiliary chamber, at least one first electrode and at least one second electrode are arranged in the first auxiliary chamber, at least one third electrode and at least one fourth electrode are arranged in the inner chamber, an anion exchange membrane is arranged between the inner chamber and the second auxiliary chamber, and at least one fifth electrode is arranged in the second auxiliary chamber.

[0129] Or the auxiliary chamber includes a first auxiliary chamber, a second auxiliary chamber and a third auxiliary chamber; a cation exchange membrane is arranged between the first auxiliary chamber and the inner chamber, an anion exchange membrane is arranged between the second auxiliary chamber and the inner chamber, and at least one first electrode is arranged in the first auxiliary chamber; at least one third electrode and at least one fourth electrode are arranged in the inner chamber, at least one fifth electrode is arranged in the second auxiliary chamber, a cation exchange membrane is also arranged between the third auxiliary chamber and the inner chamber, and at least one first electrode is arranged in the third auxiliary chamber.

[0130] In a preferred embodiment, in step S3, the third electrode is an anode, the fourth electrode is a cathode, and the third electrode undergoes an oxidation reaction, and the third electrode converts the Cl in the chloride ion solution in the inner chamber into - Electrolysis produces Cl2, which dissolves in the inner chamber and contains OH- The solution produces ClO - and Cl - The fourth electrode undergoes a reduction reaction, and the fourth electrode electrolyzes the H2O in the chloride ion solution in the inner chamber to produce H2 and OH - The ClO - It can sterilize contact lenses or scleral lenses and degrade proteins on contact lenses or scleral lenses. - The contact lens or scleral lens can be sterilized and the protein on the contact lens or scleral lens can be degraded. Since step S2 has provided an alkaline environment for the inner chamber, the NaClO in the inner chamber is not easy to hydrolyze to produce HClO, thereby reducing the adverse effects of HClO on the lens fading and material properties.

[0131] Further preferably, in step S3, after the third electrode and the fourth electrode are powered on, an electrophoresis reaction also occurs, and the tear protein on the surface of the contact lens or scleral lens is separated from the contact lens or scleral lens under the action of the electric field and moves toward the electrode with a charge opposite to itself. In the example, the degraded protein moves toward the electrode with a charge opposite to itself under the action of the electric field force, thereby achieving sterilization and protein removal of the contact lens or scleral lens.

[0132] In a preferred embodiment, the chloride ion solution is a NaCl solution. Further preferably, the NaCl solution is a physiological saline solution with a mass concentration of 0.9%. Further preferably, the pH value of the NaCl solution is 7.

[0133] Preferably, in step S2, when the pH value of the solution in the inner chamber is in the range of 8-12.5, the power supplies of the first electrode and the fourth electrode are disconnected.

[0134] Preferably, in step S3, when cleaning and caring for the contact lens or scleral lens, the ClO in the inner chamber solution is controlled. - The mass concentration is 0.01%-0.4%, and the third electrode and the fourth electrode react for 10-30 minutes to complete the cleaning and sterilization of the contact lens or scleral lens.

[0135] In the example, in step S4, the fifth electrode undergoes an oxidation reaction, and the fifth electrode converts the Cl in the chloride ion solution in the inner chamber into - The reaction is Cl2, and the second electrode undergoes a reduction reaction. The second electrode converts the H + The reaction is H2. The fifth electrode is the anode. Under the action of the electric field, the ClO in the inner chamber - OH - , Cl - The second electrode is the cathode. Under the action of the electric field, the H + 、Na +Enter the first auxiliary chamber through the cation exchange membrane. - OH - , Cl - , H + 、Na + They pass through the anion exchange membrane and the cation exchange membrane respectively and enter the second auxiliary chamber and the first auxiliary chamber. As the reaction proceeds, the solution in the inner chamber gradually becomes a pure water solution. When the solution in the inner chamber becomes a pure water solution, the reaction in step S4 stops, and the contact lens or scleral lens is placed in the pure water solution in the inner chamber. The pure water solution has no side effects on the contact lens or scleral lens, and the contact lens or scleral lens can be stored in the inner chamber for a long time. The nursing device provided by the utility model can keep the contact lens or scleral lens in the inner chamber after cleaning and nursing, without transferring to other chambers or pouring the nursing solution to replace it with a solution that can be stored for a long time. After the nursing in the nursing chamber is completed, the contact lens or scleral lens can continue to be stored in the nursing chamber without being taken out. It is safe and harmless, and no other operation is required. When it needs to be worn, it can be taken out from the inner chamber and worn, which is very convenient for customers to use.

[0136] In a preferred embodiment, in step S2, the start-up voltage of the first electrode and the fourth electrode after the power is turned on is not less than 1.1V, the stable voltage of the first electrode and the fourth electrode after the power is turned on is 3.5-7.5V, and the first electrode and the fourth electrode are disconnected from the power after reacting for 1-11 minutes. Further preferably, the pH value in the inner chamber is adjusted to a range of 10-12.5. Further preferably, in step S2, the stable voltage of the first electrode and the fourth electrode after the power is turned on is 5V, the power is disconnected after working for 1 minute, and the pH value in the inner chamber is adjusted to a range of 10-12.5. Of course, this patent is not limited to this, and other values ​​can be selected for the working time and working voltage in step S2 as needed.

[0137] Preferably, in step S3, the turn-on voltage of the third electrode and the fourth electrode when the power is turned on is not less than 1.1V, the stable voltage of the third electrode and the fourth electrode after the power is turned on is 3.5-6.5V, the effective chlorine mass concentration range of the solution in the inner chamber is controlled to be 0.01%-0.6%, and the third electrode and the fourth electrode react for 10-30 minutes to complete the cleaning and sterilization of the contact lens or scleral lens. It should be noted that effective chlorine refers to the amount of chlorine equivalent to the oxidizing capacity of the chlorine-containing disinfectant, and its content is expressed in % concentration. Further preferably, the ClO in the solution is controlled - The mass concentration of is 0.01%-0.4%. Further preferably, in step S3, the stable voltage of the third electrode and the fourth electrode after being powered on is 5V, and the power is disconnected after working for about 20 minutes to obtain the best sterilization and protein removal effect and the safest operating environment. Further preferably, the ClO in the solution is controlled - The mass concentration of is 0.01-0.229%. Of course, the working time and working voltage in step S3 can be selected from other values ​​as needed.

[0138] Preferably, in step S4, the turn-on voltage of the second electrode and the fifth electrode is not less than 1.1V, the stable voltage of the second and fifth electrodes after being powered on is 10-40V, and the second and fifth electrodes react for 10-60 minutes before the power is disconnected. Further preferably, the alkaline sodium hypochlorite solution in the inner chamber is converted into a neutral aqueous solution. Further preferably, in step S4, the second electrode and the fifth electrode are 30V, the power is disconnected after working for about 15 minutes, and the alkaline sodium hypochlorite solution in the inner chamber is converted into a neutral aqueous solution. Of course, this patent is not limited to this, and other values ​​can be selected for the working time and working voltage in step S4 as needed. As shown in Tables 1 and Fig.16 As shown in step S4, the effective chlorine concentration in the inner chamber solution changes with the change of the stable voltage and time.

[0139] Table 1 Changes in the concentration of available chlorine in the solution in the inner chamber with the change of stable voltage and time in step S4

[0140]

[0141] In step S2, after the first electrode and the fourth electrode are powered on, the first electrode is an anode and the fourth electrode is a cathode, and the following reaction occurs at the cathode and the anode:

[0142] Anode: 2Cl - -2e - →Cl2↑ (Ⅰ)

[0143] Cl2+H2O=HCl+HClO (Ⅱ)

[0144] Cathode: 2H2O+2e - =H2↑+2OH - (III)

[0145] In step S2, on the one hand, this step of reaction creates an alkaline environment for the inner chamber; on the other hand, the cation exchange membrane can block anions from passing through the cation exchange membrane, especially blocking ClO in the first auxiliary chamber. - The contact lens or scleral lens is not easily discolored in this step or the following steps.

[0146] In step S3, after the third electrode and the fourth electrode are powered on, the following reactions occur at the cathode and the anode:

[0147] Anode: 2Cl - -2e - →Cl2↑ (Ⅳ)

[0148] Cathode: 2H2O+2e - =H2↑+2OH- (V)

[0149] At this time, the total electrolytic reaction in the inner chamber is: 2NaCl+2H2O=Cl2+H2+2NaOH. The Cl2 produced by electrolysis reacts with NaOH to form NaClO. Therefore, the inner chamber solution mainly contains NaOH, NaClO and H2O. The reaction in step S3 can sterilize contact lenses or scleral lenses. NaClO can decompose proteins, and electrophoresis can strip proteins. The cooperation between electrophoresis and electrolysis can make the protein removal effect more complete. In addition, ClO - It has a bactericidal effect, and the ClO in the inner chamber - and a small amount of HClO have the effect of sterilization and protein removal. - And a small amount of HClO is not likely to cause contact lenses or scleral lenses to fade.

[0150] ClO in the inner chamber solution of step S3 - There is a dynamic balance as follows:

[0151]

[0152] OH in the inner chamber solution - At higher concentrations, the dynamic equilibrium shifts to the left, decreasing ClO - The hydrolysis of HClO in the solution decreases.

[0153] Step S2 creates an alkaline environment for the inner chamber, that is, the reaction produces OH - , to avoid the local HClO concentration in the inner chamber being too high in step S3, causing the contact lens or scleral lens to fade locally. If the alkaline environment is not created in the nursing chamber, especially if the HClO concentration near the third electrode is too high, the contact lens or scleral lens will fade locally, and the color of the contact lens or scleral lens will be uneven, which will seriously affect the use. Fig.17 As shown in the attached figure, a comparison diagram is shown in which a contact lens or a scleral lens that is cleaned and cared for by the technical solution of the utility model does not fade, and a comparison diagram in which a contact lens or a scleral lens that is cleaned and cared for by a conventional method that does not provide an alkaline environment fades.

[0154] In addition, in the conventional care method without step S4, if the contact lens or scleral lens is still placed in the inner bin after the care in step S3, the contact lens or scleral lens will still fade after being placed in the inner bin for a long time. The reason is that the pH value of the inner bin solution will decrease after being placed for a long time, because the carbon dioxide in the air dissolves in the inner bin solution and reacts with NaOH to generate sodium carbonate, the pH of the alkaline environment decreases, the hydrolysis dynamic equilibrium of the above formula (VI) moves to the right, HClO increases, HClO has a certain bleaching property, and the increase of HClO easily causes the contact lens or scleral lens to fade. In addition, NaClO also has a certain bleaching property, and HClO gradually increases.

[0155] In step S4, in addition to the oxidation reaction at the fifth electrode and the reduction reaction at the second electrode, the ions in the inner chamber include ClO - OH - , Cl - , H + 、Na + After power is turned on in step S4, the ClO in the inner chamber is - OH - , Cl - Passing through the anion exchange membrane into the second auxiliary chamber, the H + 、Na + Passing through the cation exchange membrane into the first auxiliary chamber until the solution in the inner chamber becomes a pure aqueous solution, the contact lens or scleral lens can be stored for a long time in the pure aqueous solution environment.

[0156] At least the first electrode, the third electrode and the fifth electrode are chlorine-forming electrodes. In a chloride-containing solution, an oxidation reaction occurs at the anode to precipitate chlorine gas from the chloride ions in the solution. The chlorine-forming electrode has strong corrosion resistance, strong chlorine resistance and acid resistance, good stability, good oxidation resistance, and a long working life. It can prevent the anode itself from reacting or producing other products and causing pollution to the solution or cathode products; the chlorine-forming electrode can also make it easy to discharge bubbles between the electrodes and on the surface of the electrodes, which can effectively reduce the voltage in the nursing cabin; the shape of the chlorine-forming electrode is easy to make and has a high degree of refinement. Generally, metal electrodes are mainly ruthenium, iridium, and platinum. Other inert electrodes (such as graphite and graphene materials) can also be used as chlorine-forming electrodes while ensuring the stability of the material morphology. The electrode substrate preferably uses a titanium alloy substrate or a platinum-plated substrate. In the example, the first electrode, the second electrode, the third electrode, the fourth electrode, and the fifth electrode are all chlorine-forming electrodes.

[0157] In other embodiments, when the contact lens or scleral lens needs to be rinsed, sterile saline or a multifunctional eye-friendly care solution is used to rinse the contact lens or scleral lens, or sterile saline or a multifunctional eye-friendly care solution is poured into the rinse chamber, and the rinse mode is turned on to rinse the contact lens or scleral lens. Of course, after rinsing, preferably, a lubricating liquid is dripped onto the concave surface of the contact lens or scleral lens, and then the contact lens or scleral lens is worn and used.

[0158] All features of the above components can be freely combined without conflict. In addition, changes, modifications and variations in the component structures are also within the protection scope of this patent.

[0159] In the description of this specification, the description with reference to the terms "one embodiment", "another embodiment", "another embodiment", "other embodiments", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0160] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify and vary the above embodiments within the scope of the present invention.

Claims

1. A care device for hard corneal contact lenses and scleral lenses, characterized in that: The nursing component comprises an inner chamber (1), a first auxiliary chamber (2) and a second auxiliary chamber (3); a cation exchange membrane (11) is arranged between the first auxiliary chamber (2) and the inner chamber (1), an anion exchange membrane (12) is arranged between the second auxiliary chamber (3) and the inner chamber (1); at least one first electrode (21) and at least one second electrode (22) are arranged in the first auxiliary chamber (2); when power is turned on, the first electrode (21) is an anode and the second electrode (22) is a cathode; at least one third electrode (13) and at least one fourth electrode (14) are arranged in the inner chamber (1); when power is turned on, the third electrode (13) is an anode and the fourth electrode (14) is a cathode; at least one fifth electrode (31) is arranged in the second auxiliary chamber (3); when power is turned on, the fifth electrode (31) is an anode.

2. The care device for hard contact lenses and scleral lenses according to claim 1, characterized in that: Also includes a power supply component and a control system, the power supply component is configured to provide power to the nursing device; the control system is configured to control the operation of the nursing device; and / or The first electrode (21) is configured to be in communication with the fourth electrode (14); The third electrode (13) is configured to be in communication with the fourth electrode (14); The second electrode (22) is configured to be communicatively connected to the fifth electrode (31).

3. The care device for hard corneal contact lenses and scleral lenses according to claim 1, characterized in that: The inner bin (1) is a circular bin, and the first auxiliary bin (2) and the second auxiliary bin (3) are both arranged around the outer side of the inner bin.

4. The care device for hard corneal contact lenses and scleral lenses according to claim 1, characterized in that: The nursing component is provided with two nursing compartments; The two nursing chambers share a first auxiliary chamber, and the two inner chambers are electrically connected to the first auxiliary chamber through a cation exchange membrane; and / or The two nursing chambers share a second auxiliary chamber, and the two inner chambers are electrically connected to the second auxiliary chamber through an anion exchange membrane.

5. The care device for hard contact lenses and scleral lenses according to claim 1, characterized in that: The third electrode and the fourth electrode are symmetrically arranged in the inner chamber (1), and the third electrode and the fourth electrode are both close to the side wall of the inner chamber (1).

6. The care device for hard contact lenses and scleral lenses according to claim 1, characterized in that: The first electrode, the second electrode, the third electrode, the fourth electrode and the fifth electrode are all electrode probes; and / or The first electrode, the third electrode and the fifth electrode are all chlorine evolution electrodes.

7. The care device for hard corneal contact lenses and scleral lenses according to claim 1, characterized in that: The nursing component is also provided with a sealing cover (4), on which a lens clip (41) for accommodating a contact lens or a scleral lens is provided, and the sealing cover (4) is sealingly covered on the nursing bin.

8. The care device for hard contact lenses and scleral lenses according to claim 1, characterized in that: The nursing chamber comprises a nursing chamber body (15), a cation exchange membrane (11), an anion exchange membrane (12), a first bracket (1614), a second bracket (1615) and at least two pressing plates (162); the nursing chamber body (15) is provided with an inner chamber (1), a first auxiliary chamber (2) and a second auxiliary chamber (3); at least two openings (151) are provided on a side wall of the inner chamber, one opening (151) is between the inner chamber (1) and the first auxiliary chamber (2), and the other opening (151) is between the inner chamber (1) and the second auxiliary chamber (3); A first through hole (1611) is provided on the first bracket (1614) and the second bracket (1615), a second through hole (1621) is provided on the pressing plate (162), a mounting groove (152) is provided on the opening (151), the first bracket (1614) is sealedly installed in the mounting groove (152) of one opening (151), the second bracket (1615) is sealedly installed in the mounting groove (152) of the other opening (151), the cation exchange membrane (11) is sealedly arranged between the first through hole (1611) of the first bracket (1614) and the second through hole (1621) of one pressing plate (162), and the anion exchange membrane (12) is sealedly arranged between the first through hole (1611) of the second bracket (1615) and the second through hole (1621) of the other pressing plate (162).

9. The care device for hard corneal contact lenses and scleral lenses according to claim 1, characterized in that: The first bracket (1614) and the second bracket (1615) are integrally connected via a circular ring (1616), and the circular ring (1616) is consistent with the shape of the side wall of the inner chamber; or The first electrode, the third electrode and the fifth electrode are all chlorine evolution electrodes.

10. The care device for hard corneal contact lenses and scleral lenses according to claim 1, characterized in that: The inner chamber includes a main body area (191) and at least two expansion areas (192), wherein the at least two expansion areas (192) are located outside the main body area (191), the expansion areas (192) and the main body area (191) are connected, and the third electrode and the fourth electrode are placed in the expansion areas (192).

11. The care device for hard contact lenses and scleral lenses according to claim 10, characterized in that: A sinking groove (18) is arranged at the bottom of the inner chamber, the sinking groove (18) corresponds to the main body area (191), and the third electrode and the fourth electrode are not arranged in the sinking groove (18).

12. A care device for hard corneal contact lenses and scleral lenses, characterized in that: The invention comprises a nursing component, a power supply component and a control system. The nursing component comprises an inner chamber (1), a first auxiliary chamber (2), a second auxiliary chamber (3) and a third auxiliary chamber; a cation exchange membrane (11) is arranged between the first auxiliary chamber (2) and the inner chamber (1); an anion exchange membrane (12) is arranged between the second auxiliary chamber (3) and the inner chamber (1); at least one first electrode (21) is arranged in the first auxiliary chamber (2); when power is turned on, the first electrode (21) is an anode; at least one third electrode (13) and at least one fourth electrode (14) are arranged in the inner chamber (1); when power is turned on, the third electrode (13) is an anode and the fourth electrode (14) is a cathode; at least one fifth electrode (31) is arranged in the second auxiliary chamber (3); when power is turned on, the fifth electrode (31) is an anode; a cation exchange membrane (11) is also arranged between the third auxiliary chamber and the inner chamber (1); at least one first electrode (21) is arranged in the third auxiliary chamber; when power is turned on, the second electrode (22) is a cathode; The power supply component is configured to provide power to the nursing device; the control system is configured to control the operation of the nursing device.

13. The care device for hard contact lenses and scleral lenses according to claim 12, characterized in that: The first electrode (21) is configured to be in communication with the fourth electrode (14); The third electrode (13) is configured to be in communication with the fourth electrode (14); The second electrode (22) is configured to be communicatively connected to the fifth electrode (31).

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