JPH03149053A - soft contact lens sterilizer - Google Patents

soft contact lens sterilizer

Info

Publication number
JPH03149053A
JPH03149053A JP1289492A JP28949289A JPH03149053A JP H03149053 A JPH03149053 A JP H03149053A JP 1289492 A JP1289492 A JP 1289492A JP 28949289 A JP28949289 A JP 28949289A JP H03149053 A JPH03149053 A JP H03149053A
Authority
JP
Japan
Prior art keywords
lens
sterilization
heating
sterilizer
soft contact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1289492A
Other languages
Japanese (ja)
Inventor
Hiroshi Aoyama
拓 青山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP1289492A priority Critical patent/JPH03149053A/en
Publication of JPH03149053A publication Critical patent/JPH03149053A/en
Pending legal-status Critical Current

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  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

PURPOSE:To complete sterilization in a short time by providing a microwave oscillator and lightening the thermal load applied on a lens case in sterilization. CONSTITUTION:A soft contact lens sterilizer which is used for sterilizing a soft contact lens is equipped with a microwave oscillator. When sterilization processing is carried out by the heating by utilizing the revolution energy excitation of the water moleculs in the lens conservation liquid by the irradiation of microwaves, sterilization can be carried out without heating a lens case, and the deformation and breakage of the lens case due to the thermal strain can be prevented beforehand. In addition, since the heating efficiency is superior, the processing in a short time is permitted. Though sterilization processing is carried out by using a heating type sterilizer using a heater for each lens case and about 40min. is necessary for the heating and cooling in the conventional method, sterilization is carried out by setting the lens case into the accommodation container 3 of the sterilizer and irradiating the microwaves transmitted from a microwave oscillator 1 through a wave guide passage 2, and the irradiation time can be made short into 3min.

Description

【発明の詳細な説明】[Detailed description of the invention]

[産業上の利用分野] 本発明はソフトコンタクトレンズを滅菌するために用い
るソフトコンタクトレンズ消毒器に関する。
[Industrial Application Field] The present invention relates to a soft contact lens sterilizer used for sterilizing soft contact lenses.

【従来の技術】[Conventional technology]

従来 ソフトコンタクトレンズのように含水性を有する
レンズに対しては、ハードコンタクトレンズと同様クリ
ーナーでレンズ表面を洗浄した後、滅菌処理としてヒー
タ一等で加熱することにより煮沸消毒を施していた。 〔発明が解決しようとする課題] しかし、従来の方法だと、煮沸消毒時にレンズを収納し
たレンズケースごと外部より熱を加えるので、長期間の
繰り返し使用によるレンズケースの変形あるいは破損、
ひいてはレンズ自体の破損といった事故が多発していた
。更に、煮沸消毒に要する時間も30分ないし1時間と
かなり長時間であることも問題点の一つとして挙げられ
る。 そこで本発明では以上述べた問題点を解決すべく、”滅
菌消毒時にレンズケースにかかる熱的負荷を軽減し、し
かも短時間で滅菌を完了できるようなソフトコンタクト
レンズ消毒器を提供することを目的とする。 【譚題を解決するための手段J 上記課題をM決するため本発明のソフトコンタクトレン
ズ消毒器は、ソフトコンタクトレンズを  滅菌するた
めに用いるソフトコンタクトレンズ消毒器に於て、マイ
クロ波発振器を具備することを特徴とする。 [作用] 滅菌処理を、マイクロ波照射によりレンズ保存液(生理
食塩水)中の水分子の回転エネルギー励 起を利用して
加熱することで行なえば、レンズケースを加熱すること
なく滅菌ができるので、熱歪によるレンズケースの変形
・破損を未然に防ぐことができる。加えて、加熱効率も
従来の方法(ヒーターによる加熱)に比べ格段に優れて
いるため、短時間での処理が可能である。 [実施例] 以下、本発明について実施例にもとすき詳細に述べる。 (実施例1) 評価用試料として、10時間連続装用した後のソフトコ
ンタクトレンズIO組(20枚)を用意した。これらを
10枚づつ2つのグループに分け、それぞれAグループ
及びBグループとした。各試料とも、専用クリーナーを
用いて洗浄を行なった後、生理食塩水で満たした樹脂製
のレンズケース内に格納した。次に、Bグループに属す
る試料10枚については従来通り前述のレンズケースご
とヒーターによる加熱型消毒器を用いて滅菌処理を行な
った。加熱及び冷却(室温)に約40分を要した。一方
、Aグループについては、第1図に示した本発明の消毒
器の収納容器3にレンズケースをセットし、マイクロ波
発振器1より発するマイクロ波を導波路2を介して試料
に照射することにより滅菌を行なった。尚、照射時間は
3分間である。 上述の過程を経て得られたA、  B各々のグループに
属する全試料(20枚)を滅菌食塩水中にて充分濯ぎ洗
いをした。同様の操作を滅菌食塩水を交換して3回繰り
返し行なった。このように、して得られた試料の表面を
光学顕微鏡及び電子顕微鏡で観察したところ、全試料と
も若干量の真菌と思われる褐色ないし白色様の沈着物が
認められたが、A、  Bグループ間に有意な差異は認
められず、両者とも同程度の滅菌消毒効果があることが
判明し。 た。 (実施例2) ここでは、樹脂製レンズケースについて、滅菌処理時に
加わる熱に対する繰り返し耐久試験を行なった。 生理食塩水で満たしたソフトコンタクト、レンズ保存用
の樹脂製レンズケースを200個用意し、100個ずっ
C,D二つのグループに分けた。Cグループに属する1
00個のレンズケースは、本発明の消毒器を用いてマイ
クロ波照射による加熱を3分間行い、そのまま自然冷却
により室温に戻るまで放置した。この操作を1000回
繰り返し行なった。一方、Dグループに属するレンズケ
ースは、従来のヒーターによる加熱型消毒器で20分間
加熱した後自然冷却を行ない、Cグループ同様この操作
を1000回繰り返した。 上述の試験を行なった後のレンズケースの外観を観察し
たところ、Cグループに属するレンズケースは試験前と
比べ全く変化が見られなかった。 しかしながら、Dグループのものは143個についてレ
ンズケース底部のヒーターに直接触れている箇所で亀裂
が生じており、その内12個のレンズケースは、亀裂部
よりケース内の生理食塩水の漏れが生じていた。 〔発明の効果〕 以上述べたように本発明のソフトコンタクトレンズ消毒
器は、滅菌処理をマイクロ波照射によりレンズ保存液(
生理食塩水)中の水分子の回転エネルギー励起を利用し
て加熱することで行なっている為、レンズケースを直接
加熱することなく滅菌ができる。従って、熱歪によるレ
ンズケースの変形・破損を未然に防ぐことができるとい
った効果を有する。また、加熱効率も従来の方法(ヒー
ターによる加熱)に比べ格段に優れているため、短時間
での処理が可能となった。これにより、日常のソフトコ
ンタクトレンズの取り扱いが楽になるなど、ソフトコン
タクトレンズ装用者に対してもたらされる効果は多大で
ある。
Conventionally, lenses with water-containing properties such as soft contact lenses are sterilized by boiling and sterilizing them after cleaning the lens surface with a cleaner in the same way as hard contact lenses. [Problem to be solved by the invention] However, in the conventional method, heat is applied from the outside to the lens case containing the lens during boiling sterilization, so the lens case may be deformed or damaged due to repeated use over a long period of time.
Furthermore, accidents such as damage to the lens itself were occurring frequently. Another problem is that the time required for boiling sterilization is 30 minutes to 1 hour, which is quite a long time. Therefore, in order to solve the above-mentioned problems, the present invention aims to provide a soft contact lens sterilizer that can reduce the thermal load applied to the lens case during sterilization and can complete sterilization in a short time. [Means for Solving the Problem J] In order to solve the above problem, the soft contact lens sterilizer of the present invention uses a microwave oscillator in the soft contact lens sterilizer used to sterilize soft contact lenses. [Action] If the sterilization process is performed by heating using rotational energy excitation of water molecules in the lens storage solution (physiological saline) by microwave irradiation, the lens case Since sterilization can be performed without heating the lens case, deformation and damage to the lens case due to thermal distortion can be prevented.In addition, the heating efficiency is much better than the conventional method (heating with a heater). Processing is possible in a short time. [Example] The present invention will be described in detail in Examples below. (Example 1) As an evaluation sample, a soft contact lens IO after being continuously worn for 10 hours. A set of 20 sheets was prepared.These were divided into two groups of 10 sheets each, called Group A and Group B.After cleaning each sample using a special cleaner, it was filled with physiological saline. The samples were stored in a resin lens case.Next, the 10 samples belonging to group B were sterilized using a heating type sterilizer with a heater, including the lens case as described above.Heating and cooling (room temperature) On the other hand, for group A, the lens case was set in the storage container 3 of the sterilizer of the present invention shown in FIG. Sterilization was performed by irradiating the sample through a sterile saline solution.The irradiation time was 3 minutes.All samples (20 samples) belonging to each group A and B obtained through the above process were placed in sterile saline solution. The same operation was repeated three times by changing the sterile saline solution.When the surfaces of the samples thus obtained were observed using an optical microscope and an electron microscope, it was found that all samples were Although a small amount of brown to white deposits that appeared to be fungi were observed, no significant difference was observed between groups A and B, indicating that both groups had similar sterilization and disinfection effects. (Example 2) Here, a repeated durability test against heat applied during sterilization was conducted on a resin lens case. 200 soft contacts filled with physiological saline and resin lens cases for lens storage were prepared, and 100 pieces were divided into two groups, C and D. 1 belonging to group C
00 lens cases were heated by microwave irradiation for 3 minutes using the sterilizer of the present invention, and then left as they were until they returned to room temperature by natural cooling. This operation was repeated 1000 times. On the other hand, the lens cases belonging to Group D were heated for 20 minutes in a conventional heating type sterilizer using a heater and then allowed to cool naturally, and this operation was repeated 1000 times as in Group C. When the appearance of the lens cases after the above test was observed, the lens cases belonging to group C showed no change at all compared to before the test. However, 143 lenses in Group D had cracks at the bottom of the lens case where they were in direct contact with the heater, and in 12 of those lenses, the physiological saline inside the case leaked from the crack. was. [Effects of the Invention] As described above, the soft contact lens sterilizer of the present invention performs sterilization using a lens storage solution (
This method uses rotational energy excitation of water molecules in physiological saline to sterilize the lens case, making it possible to sterilize the lens case without directly heating it. Therefore, it is possible to prevent the lens case from being deformed or damaged due to thermal distortion. Furthermore, the heating efficiency is much better than the conventional method (heating with a heater), making it possible to process the process in a short time. This has many benefits for soft contact lens wearers, such as making daily handling of soft contact lenses easier.

【図面の簡単な説明】 第1図は、本発明のソフトコンタクトレンズ消毒器の概
念図。 1・・・マイクロ波発振器 2・・・導波路 3・・・収納容器 以上 出願人 セイコーエプソン株式会社 代理人 弁理士 鈴木 喜二部(他1名)/7 、3 第1.図
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a conceptual diagram of the soft contact lens sterilizer of the present invention. 1...Microwave oscillator 2...Waveguide 3...Storage container and above Applicant Seiko Epson Co., Ltd. Agent Patent attorney Kijibe Suzuki (1 other person) / 7, 3 1st. figure

Claims (1)

【特許請求の範囲】[Claims]  ソフトコンタクトレンズを滅菌するために用いるソフ
トコンタクトレンズ消毒器に於て、マイクロ波発振器を
具備することを特徴とするソフトコンタクトレンズ消毒
器。
A soft contact lens sterilizer used for sterilizing soft contact lenses, the soft contact lens sterilizer being equipped with a microwave oscillator.
JP1289492A 1989-11-07 1989-11-07 soft contact lens sterilizer Pending JPH03149053A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1289492A JPH03149053A (en) 1989-11-07 1989-11-07 soft contact lens sterilizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1289492A JPH03149053A (en) 1989-11-07 1989-11-07 soft contact lens sterilizer

Publications (1)

Publication Number Publication Date
JPH03149053A true JPH03149053A (en) 1991-06-25

Family

ID=17743978

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1289492A Pending JPH03149053A (en) 1989-11-07 1989-11-07 soft contact lens sterilizer

Country Status (1)

Country Link
JP (1) JPH03149053A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5248478A (en) * 1988-04-21 1993-09-28 Flexiclave, Inc. Process and apparatus for heat disinfecting soft contact lenses
US5413757A (en) * 1988-04-21 1995-05-09 Flexiclave, Inc. Method and apparatus for sterilizing articles
US5871702A (en) * 1988-04-21 1999-02-16 Flexiclave, Inc. Methods and apparatus for sterilizing objects

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5248478A (en) * 1988-04-21 1993-09-28 Flexiclave, Inc. Process and apparatus for heat disinfecting soft contact lenses
US5413757A (en) * 1988-04-21 1995-05-09 Flexiclave, Inc. Method and apparatus for sterilizing articles
US5871702A (en) * 1988-04-21 1999-02-16 Flexiclave, Inc. Methods and apparatus for sterilizing objects

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