JPH03148624A - Method and device for washing - Google Patents

Abstract

PURPOSE:To rapidly wash lenses without damaging the lenses and to enhance a washing effect by interposing an electrophoretic member consisting of a hydrophilic gel or colloid sol between a pair of washing tanks disposed opposite to different electrodes and washing the bodies to be washed by entailing electrophoresis. CONSTITUTION:A cartridge body 1 for executing the washing and electrophoresis is communicated with a pair of the washing tanks 2A, 2B opposite to the different electrodes via a base part 3 in the state of parting the tanks by a distance l. The hydrophilic gel or colloid sol as the electrophoretic member P is packed laterally evenly in the base part 3. The ions or colloid particles in the hydrophilic gel or colloid sol migrate to one electrode side when a voltage is impressed to this electrophoretic member P by the external electrodes 5A, 5B via a washing liquid 4 (surfactant, etc.) previously packed in the washing tanks 2A, 2B. The washing is effected in this way and since the electrophoretic member P packed in the base part 3 seals and stagnates the deposits into the electrophoretic member P, the resticking thereof to the bodies to be washed is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a cleaning method and a cleaning apparatus for cleaning precision parts such as contact lenses, intraocular lenses, and medical optical lenses such as eyeglass lenses.

(Prior art) Conventional medical optical lenses, especially contact lenses, can be cleaned using methods such as washing by hand with a solution containing a surfactant as a main component or applying ultrasound or heat to the solution (Japanese Patent Publication No. 53-16
No. 629), and a method for disinfection by passing an electric current through saline water to create hypochlorite (Special Publication No. 60-2055).
(No. 63-254417), or a method in which the electrolyte is separated into acid and alkaline solutions using an ion exchange membrane and washed with the alkaline solution and ultrasonic waves (Japanese Patent Application Laid-Open No. 63-254417), and also proteolytic enzymes and ionolytic enzymes. Commonly known enzyme treatment agents containing as main ingredients (JP-A-50-31834, JP-A-50-64303,
There is a cleaning method that uses a special public service (Special Publication No. 5 Fu 48712).

(Problem to be solved by the invention) As mentioned above, conventional cleaning of hands and fingers with a surfactant has little effect and often damages or damages the lens itself.Also, ultrasonic cleaning Even when a machine was used, the effect of cavitation was seen, but it was not able to remove proteins mainly composed of lysozyme.In addition, even when the main focus was on ionization, it was difficult to release the lysozyme layer. On the other hand, with enzyme treatment agents, the higher the liquid temperature, for example, the room temperature
Although the GC position is said to be preferable for its activity,
Most of their uses are carried out at room temperature, so they are not fully effective, and even if the deposits are dissolved and removed in the above methods, no consideration is given to re-deposition of the substance. The current situation is that there is no such thing.

In view of the above-mentioned problems, the present invention provides a cleaning method and apparatus for cleaning the lens quickly without damaging it, and increasing the cleaning effect while taking into account the adverse effects on the eyes due to re-deposition.

(Means for Solving Problem 1) To solve the above problem, in order to maximize the activity of the cleaning liquid, the temperature of the cleaning liquid, which increases by energizing it, is kept at an appropriate temperature in a cooling tank, and the cleaning liquid Cl - The deposits of the object to be cleaned, dissolved and liberated by Na ions and Na ions, are sealed in a hydrophilic gel or colloidal sol by electrophoretic force enhanced by physical force such as ultrasonic waves, and the deposits are sealed in the object to be cleaned. The purpose of this invention is to provide a cleaning method that prevents re-adhesion to the surface and its decoration.

That is, conventionally, it has been said that the settling of contaminants on an optical lens is often due to negative charges near the surface of the optical lens (see Figure 5C), which is a common cleaning method. Although cleaning with only chemicals and acid-alkali treatment are effective in liberating the cationized deposits, they are still far from perfect.

Therefore, the electrophoretic force generated by applying electricity to the hydrophilic gel or colloidal sol is used to increase the release effect (see Figure 5). When the activity is dead, re-deposition of deposits becomes a problem (see Figure 5C).Thus, the main point of the present invention is to seal the liberated deposits in a hydrophilic gel or colloidal sol by electrophoresis. At the very least, it prevents re-adhesion to optical lenses and the like and improves the cleaning effect.

(Function) Since the present invention cleans deposits on medical optical lenses by the above-described method, the cleaning solution dissolves inorganic substances, oils, eye sebum, tear fluid components, and proteins, and the current is passed between the cleaning tank. C-ion generated by , Na°
Removal of deposits through acid and alkali treatment with ions,
The electrophoretic force generated in a hydrophilic gel or colloidal sol by applying electricity is enhanced by physical force to dissolve and remove the sediment. It is possible to complete efficient cleaning by preventing re-adhesion to the object to be cleaned.

(Example) An example will be described with reference to the drawings (FIGS. 1 to 4).

In the m1 diagram, l is a cartridge for washing and electrophoresis,
It has a pair of cleaning tanks (2A) corresponding to different types of electrodes.
, 2B) are connected to each other via the bottom part 3 while being separated by a distance, and the bottom part 3 is evenly filled with hydrophilic gel or colloidal sol as the electrophoretic member P on the left and right sides.

Thus, the cleaning tanks (2A, 2B) are attached to the electrophoretic member P interposed between the pair of cleaning tanks (2A, 2B).
When a voltage is applied by the external electrodes (5A, 5B) through the cleaning liquid 4 (surfactant, etc.) that has been filled in advance, the third
As shown in Figure a, in order for the ions or colloidal particles in the hydrophilic gel or colloidal sol as the electrophoretic member P to move to one pole side, there is a bottom part 3 between the respective cleaning tanks (2A, 2B). Therefore, an appropriate potential difference is generated.

The hydrophilic gel or colloidal sol as the electrophoretic member P mentioned above includes polyacrylic acid amide, methyl cellulose,
Ethylcellulose, hydroxyethyl acrylate, hydroxypropyl acrylate, CMC, HEMA! ′
The washing liquid 4 includes sodium lauryl sulfate, sodium dodecyl sulfate, sodium dodecyl sulfonate, sodium tetradecyl sulfate, sodium tetradecyl sulfonate, dodecylbenzene, sodium sulfonate, sodium dodecyl N-sarcosinate, P
Anionic surfactants such as OE, polyethylene, polypropylene ester, decyl ether, dodecyl ether,
Our ionic interfaces include tridecyl ether, tetradecyl ether, cetyl ether, stefryl ether, cetyl stearyl ether, p-octylphenyl ether, p-octylphenyl ether, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearacrate, etc. activators and proteolytic enzymes such as trypsin, papain, chymotrypsin, and chymopapain; fatty acid degrading enzymes such as libase, diastase, and pancreatin;
Mucin-degrading enzymes such as amylase, Trudous, and glucoamylase, EDTA (ethylenediaminetetraacetic acid), NTA (nitrilotriacetic acid), and UDA as chelating agents
(uramyl diacetic acid), Ampholine (
An aqueous solution containing liver juice acids such as Acom Co., Ltd.), cholic acid, dioxycholic acid, etc. and having an osmotic pressure adjusted to between about 200 and 300 is used.

At that time, the flow of electrons in the hydrophilic gel or colloidal sol as the electrophoretic member P is caused by the cleaning liquid 4 as shown in FIG.
6 is the cleaning device main body. , which forms a cartridge insertion part 7 for inserting the cartridge main body 1 (see Fig. 2). 8 is a cooling tank formed at the bottom of the cartridge insertion part 7, which cools the hydrophilic gel or colloidal sol. and.

This will be explained later. Water W having the action of TFL-G wave conduction is injected from the inlet 8A of the cooling tank 8 while keeping the water temperature and water pressure constant under the control of the cooling circulation device 9, and is circulated from the discharge port 8B to the cooling circulation device 2t9. It is completed.

Incidentally, instead of the cooling water mentioned above, injection and discharge of carbon dioxide gas or ammonia may be used.

Reference numeral 10 denotes an upper lid that holds two connection terminal legs fit OA and IOB and leg parts 10C and 100, and the connection terminal legs PJIOA and IOB are located at positions facing the cleaning tanks (2A, 2B), respectively. external electrodes 5A electrically connected to the external electrodes 5A,
5B is allowed to hang down.

11A and IIB are conductive molds for placing objects to be cleaned into the cleaning tanks (2A, 2B) of the cartridge main body 1 set in the cleaning device main body 6, and conductive metal molded from hardened plastic or carbon fiber. After first putting the object to be cleaned into the washing net m (IIA, 11B), attaching the mounting protrusion 12A formed on the upper periphery to the external electrode (5A, 5B). Four mounting parts 1 formed on the outer periphery of
Installation is completed by fitting 2B.
Cleaning copper fi (IIA.

118) are electrically connected to the connection terminal legs (IOA, 10B) via external electrodes (5A, 5B), respectively.

14A, 14B, 14c,! 40 is the cleaning device main body 6
The connection terminal legs (10A) are drilled around the four sides of the connection terminal.

108) and leg portions (l QC, l 00), of which the connection terminal leg portion (IOA
, 10B) are provided with input terminals 1 connected to an external electric control device i15 in the insertion holes 14A and 14B.
6A and 16B are buried.

Therefore, when the upper lid 10 is closed and tightly attached to the cleaning device main body 6, the connection terminal leg i! (l OA-, l OB) and input terminals (16A, 16B) are connected to each other so as to be electrically connected to the external electric control device W115.

17 is an ultrasonic oscillator, and a terminal 17 is provided at the bottom of the cooling tank 8.
Attachment is through A and 17B.

Further, the terminals (17A, 17B) are connected to the input terminal (1
6A, 16B) to the electric control device 115, and the ultrasonic oscillator 17 is connected to the electric control device 2!
The energization time can be varied by a timer under the control of 15.

At this time, the ultrasonic waves of the ultrasonic oscillator 17 are transmitted to the cleaning liquid 4 side in the cleaning tanks (2A, 2B) via the water W in the cooling tank 8 and the electrophoretic member P in the bottom part 3. As a result, an oscillating potential difference (Debye effect) is forcibly excited in the electrophoretic member P, and the electrophoretic force for retaining deposits on the object to be cleaned can be enhanced.

Next, the mode of use of the present invention will be explained.

First, the cassette body l is accommodated in the cartridge insertion part 7 of the cleaning device body 6, and the cartridge body 1 is cleaned #g(
2A, 2B) with cleaning liquid 4.

Next, the objects to be cleaned are placed in the cleaning nets ME (IIA, IIB) and connected to the external electrodes (5A) of the upper lid 10.

5B), and then close the lid on the cleaning device main body 6. At that time, the object to be cleaned is placed in the cleaning liquid 4, and the connecting terminal legs (10A, 10B) and the input terminal ( 16A, 16B) are connected to the external electric control device 115, and cleaning is started.

At this time, the electrophoretic member P filled in the bottom part 3 of the cartridge main body 1 electrophoreses the deposits, and the deposits are sealed and retained in the electrophoretic member P, so that the deposits are not returned to the object to be cleaned. Adhesion can be prevented.

(Effects of the Invention) Therefore, the present invention removes dissolved deposits by cleaning with a cleaning agent and acid-alkali treatment with Cl- ions and Na- ions in a cleaning tank made of a hydrophilic gel or colloidal sol. It can be fixed in a hydrophilic gel or colloidal sol by electrophoretic force reinforced by physical force such as ultrasound, resulting in the following effects.

(1) Re-deposition of dissolved deposits, which was not considered in conventional cleaning methods, could be prevented by sealing them in a hydrophilic gel or colloidal sol by electrophoresis.

(2) The electrophoretic force of conventional electrophoresis was strengthened by imparting a forced oscillation potential difference using ultrasound.

(3) In order to maximize the activity of the cleaning agent, adjust the temperature of the cleaning solution to the maximum.
It can be controlled by a cooling device to maintain the appropriate temperature.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view of the cartridge main body of the present invention. Figure 2 is an enlarged partial longitudinal sectional front view of the main body of the cleaning device, Figure 3a
3 is a principle explanatory diagram showing an outline of the cleaning method, and FIG. 3 is a graph diagram illustrating the flow mode of electrons in the electrophoretic member.
FIG. 4 is an exploded perspective view of the main body of the cleaning device. FIGS. 5A to 5C are longitudinal sectional side views showing the manner of contamination of the object to be cleaned.

Claims (1)

[Scope of Claims] (1) An electrophoretic member P made of a hydrophilic gel or a colloidal sol is cleaned in a pair of cleaning tanks (2A,
2B) A cleaning method characterized by cleaning the object to be cleaned with electrophoresis by interposing the object between the two. For removal, Cl^- ions and Na^+ ions are dissolved by acid-alkali treatment by applying electricity between the liquid tanks, and at the same time, the deposits are transferred into the hydrophilic gel or colloid sol using electrophoretic force enhanced by physical force. (3) The cleaning method according to claim 1, characterized in that the cleaning method comprises: sealing the object to be cleaned to prevent deposits from re-adhering to the object to be cleaned, and controlling the temperature of the cleaning liquid and the hydrophilic gel or colloidal sol. The cleaning method according to claims 1 or 2, wherein the cleaning liquid is an anionic surfactant such as sodium lauryl sulfate, polyethylene, or polypropylene. Nonionic surfactants such as esters, proteolytic enzymes such as trypsin, papain, chymotrypsin, and chymopapain, fatty acid degrading enzymes such as lipase and diastase, mucin degrading enzymes, and chelating agents such as EDTA Ampholine, cholic acid, and dioxycholic acid. (5) The cleaning method according to any one of claims 1 to 3, characterized in that the aqueous solution contains liver juice acid and has an osmotic pressure of about 300. The cleaning method according to claims 1 to 4, characterized in that acrylate, hydroxypropyl acrylate, CMC, HEMA, etc. are used (6) Cl^- ions generated during electrophoresis;
A cleaning method according to claims 1 to 5, characterized in that cleaning by the cleaning solution is strengthened by subjecting the object to be cleaned to acid treatment and alkali treatment using Na^+ ions (7) that occur during electrophoresis. Claims 1 to 6, characterized in that the temperature is controlled using a cooling device in order to maximize the activity of the detergent and increase the electrophoretic force.
The cleaning method (8) according to any one of claims 1 to 7, characterized in that an oscillating potential difference is forcibly generated in the hydrophilic gel or colloidal sol using ultrasound as a physical force to enhance the electrophoretic force. Method (9) The cleaning method according to Claims 1 to 8, characterized in that the pH of the alkaline solution is 1 to 13. (10) A pair of cleaning tanks (2A, 2B) corresponding to different types of electrodes are used.
) are separated by a distance l and are connected to each other via a bottom part 3, and the bottom part 3 is filled with an electrophoretic member P evenly on the left and right sides, the cartridge main body 1 having: The cleaning device main body 6 has a cooling water tank for controlling the temperature of the cleaning liquid and is equipped with an ultrasonic oscillator that increases the electrophoretic force of the electrophoretic member P. A cleaning device (11) characterized in that it has a mechanism for attaching a holding mesh basket and a cleaning device top lid having an external electrode, and can be energized by inserting the top lid legs into the cleaning device main body insertion part (11) It is characterized by the use of a mesh basket made of conductive metal, noble metal, conductive plated plastic, carbon fiber, etc., which has a structure that connects with the external electrode part when the object to be cleaned is placed in the cleaning solution. The cleaning device according to claim 10