JPS6346698B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrode body used in a contact lens sterilizer and a method for manufacturing the same.

Conventional methods for disinfecting individual contact lenses include:
There are heat sterilization methods using a fixed container and chemical sterilization methods. There are also wet heat sterilization methods and dry heat sterilization methods.The wet heat sterilization method uses boiling water or steam heating to sterilize, so there are space restrictions and heating and cooling are required. Therefore, there are inconveniences such as a long disinfection time. In addition, in the dry heat sterilization method, it is difficult to control the sterilization temperature due to air conduction heating, which makes the structure of the sterilizer complicated. In addition, like the wet heating sterilization method, heating and cooling are required, so the sterilization time is longer. In addition, these two thermal sterilization methods have common disadvantages such as deterioration of contact lenses and accelerated aging of the sterilizer container due to heating. On the other hand, in the chemical disinfection method, chemicals are used to disinfect, so
If the subsequent cleaning is insufficient, there is a risk of eye damage due to contamination from the residual chemicals.A simple disinfection method that improves these problems is a disinfection method that uses electrolysis of physiological saline and a disinfection device. However, the present invention provides a structure of an electrode body used therein and a method for manufacturing the same.

This will be explained below using embodiments shown in the drawings.

Reference numeral 1 denotes an insulating substrate, which is manufactured by forming an insulating material such as alumina porcelain or steatite porcelain into a thin plate shape by means such as tape casting or compression press processing, and then firing the thin plate.

2 is a pair of left and right electrolytic electrodes baked on the top surface of this insulating substrate 1, and a paste-like substance made by kneading 4 to 10% glass frit into a required conductive base material such as a platinum-based material is screen printed, etc. It is manufactured by depositing it on a predetermined position of the insulating substrate 1 by the means described above and then baking it under predetermined conditions. Further, reference numeral 3 denotes a pair of left and right power contacts baked onto the lower surface of the insulating substrate 1, which are made by kneading 4 to 10% glass frit into an inexpensive conductive base material in the same manner as the electrolytic electrode 2. It is manufactured by applying a paste-like substance using a simple method such as screen printing as described above, and then baking it under fixed conditions. and 4 is the insulating base 1
At the side edge of the electrode 2 for electrolysis and the contact 3 for power supply
A conductive paste is applied and baked at the connection part where the parts are electrically connected.

As described above, the electrode body of the present invention, which has an extremely simple external structure and is adapted to mass production, is extremely superior in use when combined with a new personal contact lens sterilizer. It has a great effect. That is, in FIG. 4, an example of its use will be explained below with reference to the drawings, the insulating substrate 1 is attached to the bottom of the sterilization container 14 combined with the personal contact lens sterilizer main body 8 using a sealing material 9 to prevent leakage. It is watertight and easy to put on and take off. A power source 10 such as a dry battery is provided at the bottom of the sterilizer main body 8, and a current controller 1 is connected to this power source 10.
1. Further, the circuit terminal of the current controller 11 is conductively connected to a contact 13 via an electric line 12, and this contact 1
3 is connected to the power supply contact 3 so as to be directly and easily connected to the power supply each time the sterilization container 14 is combined with the sterilizer main body 8. Therefore, when the power source 10 is energized, the electrode body according to the present invention can form a circuit for reliably energizing both poles in the physiological saline used, making it possible to electrolyze the saline. Since there are no external protrusions, there is no possibility of conduction failure due to foreign matter or impurities in the container, and both electrodes exposed in the saline solution are made of a mixture of chemically extremely stable platinum-based materials. Therefore, there are no defects such as corrosion and rust on the pole surface, and it can be easily removed and cleaned, so it is easy to handle.

Moreover, the electrode body according to the present invention has the above-mentioned structure, and the manufacturing method thereof allows the electrode body to be manufactured in large quantities at low cost.The manufacturing method will be described below.

That is, the electrode body according to the present invention is completed by the first step of producing a raw sheet, the second step of forming electrodes for electrolysis, the third step of producing contacts for power supply, and the fourth step of dividing. First, I will explain the first step. A ceramic raw material made by adding crystal growth inhibitors such as magnesia and silica to commercially available α-alumina is finely ground in a ball mill to a particle size of approximately 3 μm or less, and a deflocculant, binder, plasticizer, and solvent are added thereto and then ball milled. The mixture is uniformly mixed and formed into a soft sheet using a tape casting method (for example, a doctor blade method). Then, a pressing blade is used to make a plurality of split stripes 5 on the soft sheet to form individual electrode bodies, and a wedge-shaped recess is then formed on the split strip 5 toward the center in a direction perpendicular to the split strip 5. Make a through hole 6 in the shape of 7. This is then fired using an electrode furnace in a non-oxidizing atmosphere at approximately 1600°C, thereby completing a flat insulating substrate. Next, in the second step, the corrosion protection is applied on one upper surface of the insulating substrate completed in the first step in a direction perpendicular to each split strip 5 and at a position where the wedge-shaped mark is the center of the width. A paste-like coating material made by kneading a conductive base material and 4 to 10% glass frit was applied using a thick film method similar to screen printing using a printing machine, and this was further coated with 700%
By firing and shaping in an ambient atmosphere at ~1000°C, a flat insulating substrate having a large number of electrolytic electrodes 2 at predetermined positions is completed. Next, the third step will be explained.
The electrolytic electrode 2 is coated on one side of the flat insulating base made in the above process, and a conductive material is deposited on the opposite lower side of the insulating base, i.e., 4 to 10% of the required conductive base material is applied at the appropriate time. By applying a pasty conductive material made by kneading glass frit to the electrolytic electrode using a thick film method such as screen printing using a printing machine, the power supply contact 3 can be easily formed. In this process, the conductive material flows into the wedge-shaped recess 7 of the through hole 6 by this printing type application, and adheres to the end of the electrolysis electrode 2, forming the electrolysis electrode 2 and the power supply contact 3. The terminals of both electrodes will be electrically connected automatically through this recess 7, and if this is fired in an atmosphere of 700 to 1000°C, a large number of continuous individual electrodes as described here will be formed. It can be completed as a strip-shaped flat plate. If this is split or separated along the split strips 5 already attached in the first step as detailed above, a large number of single electrode bodies can be manufactured at once. This is the fourth step. Thus, the present invention is completed through continuous processing from the first step to the fourth step.

As described above, the present invention has various effects as described below. That is, in the method for manufacturing an electrode body according to the present invention, the configuration shape is extremely simplified, so each manufacturing process is mechanized, and there are no hand-processed parts, so a product of stable quality can be produced.
Furthermore, the shape is such that a large number of products can be mechanically manufactured and processed at the same time in each of these steps, and the completed product electrode body is formed into a thin plate shape from ceramic material such as alumina porcelain, so it is resistant to corrosion during electrolysis. It has excellent properties, and requires only a small assembly volume, making it easy to downsize the sterilizer body in which it is used. In addition, both the electrolytic electrode and the power supply contact are baked into a thick film using the same method as printing, so there is no risk of damage or peeling during cleaning during use, and a uniform electrode surface is formed. At the same time, the amount of conductive material used is extremely small, so even if expensive platinum-based materials, which are commonly used because they are chemically stable, are used as electrodes for this electrolysis, the amount used is very small, making them unnecessary. The electrode body can be manufactured at an extremely low cost, and in combination with the mass production method described above, the effect of supplying a large quantity of inexpensive, high-quality products to the market is truly significant.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of an electrode body for contact lens disinfection according to the present invention, FIG. 2 is a perspective view thereof, FIG. 3 is a partial perspective view of a large flat sheet, and FIG. 4 is a cross-sectional view of an electrode body according to the present invention. FIG. 2 is a longitudinal cross-sectional view of a disinfector incorporating a DESCRIPTION OF SYMBOLS 1... Insulating base, 2... Electrolyte for electrolysis, 3... Contact for power supply, 4... Edge, 5... Split strip, 6... Through hole, 8... Disinfector body, 14... Disinfecting container .

Claims (1)

[Scope of Claims] 1. Electrolytic electrodes made of a corrosion-resistant kneaded material are baked on the upper surface of a flat insulating substrate that can be fitted watertight to the bottom of a container, and a power source for supplying electricity to the electrolytic electrodes is provided on the lower surface of the substrate. An electrode body for a contact lens sterilizer, wherein a contact is provided and the electrolytic electrode and the power supply contact are electrically connected by coating a conductive material on the edge of the insulating base. 2. The first corrosion-resistant kneaded body is a platinum-based kneaded body.
Electrode body for a contact lens sterilizer as described in . 3. A first step of manufacturing a green sheet by pressurizing and compressing an insulating material such as alumina porcelain and firing the whole at a constant temperature, a second step of coating and forming an electrolytic electrode on one side of the green sheet, and the above-mentioned step. The third step is to apply and form a power supply contact on the other side facing the electrolytic electrode, and the thus completed continuous large flat sheet containing a large number of electrode bodies is cut into individual identical electrode bodies. A method for manufacturing an electrode body for a contact lens sterilizer, which comprises a fourth step of simultaneously manufacturing a large quantity.