JPH03141952A - Residual gas removal promoting device in ethylene oxide gas sterilization - Google Patents
Residual gas removal promoting device in ethylene oxide gas sterilizationInfo
- Publication number
- JPH03141952A JPH03141952A JP1282397A JP28239789A JPH03141952A JP H03141952 A JPH03141952 A JP H03141952A JP 1282397 A JP1282397 A JP 1282397A JP 28239789 A JP28239789 A JP 28239789A JP H03141952 A JPH03141952 A JP H03141952A
- Authority
- JP
- Japan
- Prior art keywords
- ethylene oxide
- gas
- sterilization
- oxide gas
- solenoid valve
- 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.)
- Granted
Links
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 52
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 50
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 230000001737 promoting effect Effects 0.000 title 1
- 238000004140 cleaning Methods 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims abstract 2
- 239000007789 gas Substances 0.000 claims description 59
- 238000003860 storage Methods 0.000 claims description 9
- 239000002341 toxic gas Substances 0.000 claims description 4
- 238000003795 desorption Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 231100000331 toxic Toxicity 0.000 abstract description 9
- 230000002588 toxic effect Effects 0.000 abstract description 9
- 231100000419 toxicity Toxicity 0.000 abstract description 6
- 230000001988 toxicity Effects 0.000 abstract description 6
- 238000004887 air purification Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 22
- 230000033228 biological regulation Effects 0.000 description 6
- 238000011109 contamination Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 206010018910 Haemolysis Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000007059 acute toxicity Effects 0.000 description 1
- 231100000403 acute toxicity Toxicity 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000007665 chronic toxicity Effects 0.000 description 1
- 231100000160 chronic toxicity Toxicity 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000008588 hemolysis Effects 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 210000005132 reproductive cell Anatomy 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 208000017520 skin disease Diseases 0.000 description 1
- 210000001082 somatic cell Anatomy 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
Description
【発明の詳細な説明】
（発明の利用分野）
本発明は、エチレンオキサイドガスを利用した滅菌完了
後の被滅菌物を、滅菌物収容器内に収容した侭、一定温
度に加温しつつ空気洗浄を行い、かつ間歇的に加湿タイ
ムを続けて、滅菌物収容器内、および被滅菌物に吸着、
残留する有毒なエチレンオキサイドガスを加湿、湿気に
吸着させて無菌空気に置換し、滅菌済物品に付着、残留
するエチレンオキサイドガスの毒性を短ｖＦｔ間の内に
離脱させ使用可能にすると共に、これらの滅菌工程を無
人運転により可能ならしめたエチレンオキサイドガス滅
菌における残留ガス脱離速進装置に関するものである。Detailed Description of the Invention (Field of Application of the Invention) The present invention provides a method for storing objects to be sterilized after sterilization using ethylene oxide gas in a sterilization object container, heating them to a constant temperature, and injecting them with air. After cleaning and continuing the intermittent humidification time, it adsorbs to the inside of the sterilization container and the objects to be sterilized.
The remaining toxic ethylene oxide gas is humidified and absorbed into the moisture and replaced with sterile air, and the toxicity of the ethylene oxide gas that adheres to and remains on sterilized items is removed within a short vFt, making them usable. The present invention relates to a device for accelerating residual gas desorption in ethylene oxide gas sterilization, which enables the sterilization process to be performed unmanned.
（従来の技術）
従来より病院の中央滅菌材料室などで、−度患者に使用
した医療器具、または滅菌有効期限切れの医療器具の殆
んどは再度滅菌処理を行い、再使用に供しているもので
あるが、この場合滅菌処理方法としては１通常温度１２
１℃で２０乃至３０分間、又は温度１３２°Ｃで５乃至
ｌＯ分間高圧蒸気により滅菌処理を行っていたものであ
る。然しなからこのような方法においては、耐熱性の無
い熱に弱い素材、又はこのような滅菌条件では素材が劣
化して滅菌再生か不可能な製品、或は蒸気によって切れ
味の悪くなる刃物類、更に品温滅菌ではその製品の寿命
か短くなるもの等があるため、−概にこの高圧蒸気滅菌
方法か最良とは言えないものであった。(Conventional technology) Conventionally, most medical instruments used on patients or whose sterilization expiration date has expired have been re-sterilized in central sterilization material rooms of hospitals, etc., and then made available for reuse. However, in this case, the sterilization method is 1. Normal temperature 12.
Sterilization was performed using high-pressure steam at 1°C for 20 to 30 minutes or at 132°C for 5 to 10 minutes. However, in this method, it is difficult to use heat-sensitive materials that are not heat resistant, or products whose materials deteriorate under such sterilization conditions and cannot be resterilized, or cutlery that loses its sharpness due to steam. Furthermore, because temperature sterilization sometimes shortens the life of the product, this high-pressure steam sterilization method is generally not the best.
そこでこの高圧蒸気滅菌に代わるものとして、エチレン
オキサイドガスを用いた滅菌方法は、４０℃乃至６０°
Ｃの温度て殺菌効果か高く、然も高圧蒸気滅菌に比較す
ると高温による形状の変化、素材の劣化および鋼製品の
錆等、液域ｆ４物に対する悪影響かないため、これによ
る滅菌範囲は（１）生体内坪め込み用器具、（２）生体
内挿入又は留置する器具、（３）皮膚に接触させる器具
（４）体外用の呼吸回路、（５）体外用の血液に接触さ
せる各種器具、（６）手術用各種器具等に拡大され、こ
の滅菌方法は病院の中央滅菌材料室並びに医療器具滅菌
製造丁場等て広く用いられるようになった。Therefore, as an alternative to this high-pressure steam sterilization, a sterilization method using ethylene oxide gas is recommended.
The sterilization effect at temperature C is high, but compared to high-pressure steam sterilization, there are no negative effects on liquid area F4 objects such as shape changes due to high temperatures, material deterioration, and steel product rust, so the sterilization range by this is (1) (2) Instruments for insertion or indwelling in living organisms; (3) Instruments for contact with the skin; (4) Breathing circuits for external use; (5) Various instruments for external use that come into contact with blood. 6) This sterilization method has been expanded to include various surgical instruments, and has come to be widely used in hospitals' central sterilization material rooms and medical instrument sterilization manufacturing areas.
（発明か解決しようとする問題点）
然しなからこのエチレンオキサイドガスな用いた滅菌方
法は、滅菌工程中に、有毒ガスが被滅菌物に吸着し、残
留するものであり、人体に有毒であって滅菌処理後の滅
菌器具はその何便用することができない不便がある。(Problem to be solved by the invention) However, in this sterilization method using ethylene oxide gas, toxic gas is adsorbed to the object to be sterilized and remains during the sterilization process, which is toxic to the human body. It is inconvenient that sterilized instruments cannot be used again and again after sterilization.
これがため滅菌処理後は空気洗浄、又は一定期間室内に
放置して毒性の高いエチレンオキサイドガスを脱離させ
てから医療用器具、器材として使用されているのである
が、毒性の残留度の高い医療器具を人体に用いた場合に
はその個所に対する有毒性が次のように示唆されている
。For this reason, after sterilization, they are cleaned with air or left indoors for a certain period of time to remove the highly toxic ethylene oxide gas before being used as medical instruments and equipment. When the device is used on the human body, the toxicity to that area is suggested as follows.
即ち（１）皮膚に対しては炎症の惹起、（２）粘膜に対
しては刺激、炎症作用、（３）血液に接触させた場合は
溶血作用、（４）その他生殖細胞及び体細胞に異変を起
すなどの様に急性毒性および慢性毒性が大きな問題とな
っているのが現状である。In other words, (1) causes inflammation on the skin, (2) irritates and inflames the mucous membranes, (3) causes hemolysis when in contact with blood, and (4) causes other abnormalities in reproductive cells and somatic cells. At present, acute toxicity and chronic toxicity have become a major problem.
然るにかかるエチレンオキサイドガスの毒性に関する我
国における気中濃度の法的規制は制定されておらず、昭
和５６年（１９８１年）日本産業衛生学会か行った勧告
値５０ＰＰＭと言うのが現イＥ一般に広く知られている
数字であるか、法的規制値でないため、このガスを取扱
う作業関係者は安全のため米国規制を参考に用いる事が
多い、この米国規制は昭和４６年（１９７１年）エチレ
ンオキサイドガスを利用する滅菌作業者かこのガスに曝
露される量は８時間側重平均で５０ＰＰＭを越えないこ
とを雇用者は保障しなければならないと言う主旨で最初
の規制か行われた。この規制は昭和５４年（１９７９年
）ＩＯＰＰＭに、四に昭和５６年（１９８１年）には５
ＰＰＭに規制か変史された。又同しく米国の職業安全衛
生管理局（ＯＳＨＡ）は、職業安全衛生法に基づく職業
上のエチレンオキサイドガス暴露量の最終規格を定め、
これを８時間側重平均ＩＰＰＭとすることを決定したの
は昭和５９年（１９８４年）である。However, there are no legal regulations regarding the airborne concentration of ethylene oxide gas in Japan, and the recommended value of 50 PPM, made by the Japan Society of Industrial Hygiene in 1981, is currently widely used in the general public. Because it is a known value or not a legally regulated value, those working with this gas often refer to the U.S. regulation for safety reasons. The first regulation was created to require employers to ensure that sterilization workers using gas are not exposed to more than 50 ppm on an 8-hour side weight average. This regulation was introduced in the IOPPM in 1979, and then in 1981 as the IOPPM.
The regulation changed to PPM. Similarly, the Occupational Safety and Health Administration (OSHA) in the United States has established final standards for occupational ethylene oxide gas exposure based on the Occupational Safety and Health Act.
It was in 1984 that it was decided to use this as the 8-hour weighted average IPPM.
更に環境保護圧（ＥＰＡ）は、病院および衛生管裡施設
の機器および消耗品の滅菌用に登録されているエチレン
オキサイドガスを含有した殺菌剤のラベリングの改定に
より昭和６１年（１９８６年）７月１日迄に実施するよ
う次のような改善勧告を公布した。即ち
１、滅菌作業場所の設計方法として、
（１）エチレンオキサイドガスボンベの接続方法（２）
排気装置
（３）９報システム
２、滅菌作業場所の業務慣行として。Furthermore, the Environmental Protection Pressure (EPA) was introduced in July 1986 due to a revision of the labeling of disinfectants containing ethylene oxide gas, which are registered for sterilization of equipment and consumables in hospitals and sanitary facilities. The following improvement recommendations were issued to be implemented by the 1st. In other words, 1. How to design a sterilization work area: (1) How to connect an ethylene oxide gas cylinder (2)
Exhaust system (3) 9-report system 2, as a business practice for sterilization work areas.
（１）エチレンオキサイドガス導入ラインのフィルター
の交換
（２）滅菌装置の扉の開放手順
（３）滅菌装置から被滅菌物の取り出し手順の指導改善
（滅菌装置中の空気および被滅菌物に残留するエチレン
オキサイドガスの被爆を受けないように）
このように殺菌効果は高いが毒性を有するエチレンオキ
サイドガス滅菌処理後の物品に吸着、残留している有毒
ガスを離脱させる為の方法として行われているものであ
るが、現在我国において次のような方法がとられている
。(1) Replacing the filter in the ethylene oxide gas introduction line (2) Procedure for opening the door of the sterilizer (3) Improving guidance on the procedure for removing objects to be sterilized from the sterilizer (remaining in the air in the sterilizer and objects to be sterilized) (To avoid exposure to ethylene oxide gas) This method is used to release the toxic gas that is adsorbed and remains on items after sterilization with ethylene oxide gas, which has a high sterilizing effect but is toxic. However, the following methods are currently being used in our country.
（１）滅菌終了後、被滅菌物を、滅菌装置内に収容のま
まの状態で無菌空気を導入して空気洗浄を行う。(1) After the sterilization is completed, sterile air is introduced into the sterilized object while the object is still housed in the sterilizer to perform air cleaning.
（２）減ｖＭｋｌ！了後、別の空気洗浄装置内に被滅菌
物を移しかえる。(2) Reduced vMkl! After sterilization, transfer the items to another air cleaning device.
（３）滅菌終ｒｖｋ、滅菌装置より被ｗｔ、ｅｉＩｉ物
を取り出して滅菌作業室内に一定日数放置する。(3) At the end of sterilization, take out the wt and eiIi items from the sterilizer and leave them in the sterilization work room for a certain number of days.
以上のような方法をとっているか、このような方法では
前述の米国規制に抵触、又は現場での作業者の取扱−ヒ
の事故により皮膚障害などが報告（昭和６２年、口木医
科機器学会〉されているのか現状であり、」―記の方法
では次のような問題点をイ１している。即ち
（１）の方法においては１作用効果か少ないため液域Ｖ
ｉ物の使用日数に期間を要する。Whether the method described above is in violation of the above-mentioned U.S. regulations, or there have been reports of skin disorders due to handling accidents by workers at the site (1986, Kuchiki Medical Instrument Society) The method described above has the following problems. Namely, in method (1), the liquid region V
It takes a long time to use the i-item.
（２）の方法においては、滅菌装置の扉の開閉による作
業環境汚染、および作業者の被爆および滅菌済物が細菌
による再汚染の危険性かある。これは病院の中央滅菌材
料室などで用いている市販の滅菌用紙袋などは、滅菌お
よび室内汚染などの作用効果が高く、通気性を持たせた
設計であるからである。即ち空気洗浄装置に移し換える
場合、および上記の紙袋を用いた被滅菌物の袋の外側か
作業者の手指、又は環境により細菌汚染を受けていた場
合は空気洗浄装置の中で数時間（換気２５回／時間がよ
いと言われている）空気洗浄か行われている間に装の外
側の細菌は空気と共に袋の中へ送り込まれる危険性が生
しるからであり又この作業を無菌状態で操作できる様に
置き換えた場合は、その設備が高価となるのみならず作
業手順がより複雑になるものである。In method (2), there is a risk of contamination of the working environment due to opening and closing of the sterilizer door, exposure of workers to radiation, and recontamination of sterilized objects with bacteria. This is because commercially available sterile paper bags used in central sterile material rooms of hospitals are highly effective in sterilizing and preventing indoor contamination, and are designed to be breathable. In other words, if the item is transferred to an air cleaning device, or if there is bacterial contamination from the outside of the paper bag, the operator's fingers, or the environment, the item should be kept in the air cleaning device for several hours (ventilated). This is because there is a risk that bacteria on the outside of the bag will be sent into the bag along with the air during air cleaning (25 times/hour), and this process must be carried out under aseptic conditions. If the equipment were to be replaced so that it could be operated using a manual, not only would the equipment become expensive, but the work procedure would also become more complicated.
（３）の方法においては、作用効果か悪いので被滅菌物
の使用日数に期間を要し、作業環境汚染、およびその空
調全体の汚染と、作業者の安全性に問題があるなど種々
の解決すべき問題点を有しているものである。In method (3), the effectiveness is poor, so it takes a long time to use the items to be sterilized, and there are various problems such as contamination of the working environment, contamination of the entire air conditioner, and safety problems for workers. There are some issues that need to be addressed.
（問題を解決するための手段）
本発明はかかる現状に鑑みてなされた発明てあって、滅
菌装置内で滅菌終了後の被滅菌物に吸着、残留している
エチレンオキサイドガスな除去する方法として、エチレ
ンオキサイドガスは水に可溶性を持っている原理を利用
し、ｆ！１．填装置に加湿、加温装置を設けることによ
り、滅菌装置内の気中およびその中の物品に適当なる湿
気と温度とを与えて、この湿気にエチレンオキサイドガ
スを吸着させると共に、無菌空気と置き換える空気洗浄
によりその作用効果を大きくし、かつこれを無人運転に
より継続することを目的とした装置によりエチレンオキ
サイドガスの毒性により医療用器具、その他の用品の毒
性被害を無くするようにしたものである。(Means for Solving the Problem) The present invention was made in view of the current situation, and is a method for removing ethylene oxide gas adsorbed and remaining on objects to be sterilized after sterilization in a sterilizer. , using the principle that ethylene oxide gas is soluble in water, f! 1. By providing a humidifying and heating device in the sterilization device, appropriate humidity and temperature are applied to the air inside the sterilization device and the items therein, and this moisture adsorbs ethylene oxide gas and replaces it with sterile air. This device is designed to increase the effect of air cleaning and to continue this operation unmanned, thereby eliminating toxic damage to medical instruments and other supplies caused by the toxicity of ethylene oxide gas. .
（作 用〉
本発明は、エチレンオキサイドガスを使用して減閑作業
をなし、滅菌完了後の被滅菌物を、滅菌装置内に収容し
た侭その外周に温水を循環させるなどの保温手段により
滅菌装置内を約５０℃乃至６０’Ｃに保温すると共に、
この装置内を真空、無菌空気による給気、即ち空気洗浄
、および間歇的に加湿タイムを設けて、その滅菌装置内
、および被滅菌物に吸着、残留している有毒エチレンオ
キサイドガスを加湿、湿気に吸着させると共に、無菌空
気と置換して被滅菌物に吸着、残留しているエチレンオ
キサイドガスの毒性を短時間の内に除去するものである
。(Function) The present invention performs a reduction operation using ethylene oxide gas, and after sterilization is completed, the objects to be sterilized are housed in a sterilizer and sterilized by heat retention means such as circulating hot water around the outer periphery of the object. While keeping the inside of the device at about 50°C to 60'C,
The inside of this sterilizer is vacuumed, air is supplied with sterile air, that is, air is washed, and there is intermittent humidification time to humidify and humidify the toxic ethylene oxide gas that is adsorbed and remains inside the sterilizer and on the objects to be sterilized. At the same time, the ethylene oxide gas is adsorbed to the object to be sterilized by replacing it with sterile air, and the toxicity of the remaining ethylene oxide gas is removed within a short period of time.
（実 施 例）
本発明の実施例を示せば、被滅菌物の一定量を収容して
滅菌する被滅菌物収容装置（１）に付属して、エチレン
オキサイドガス導入電磁弁（２）と滅菌処理後の使用ガ
ス排出電磁弁（３）および洗浄用空気導入電磁弁（４）
を設けたエチレンオキサイドガス滅菌装置において、被
滅菌物収容装置（１）の周囲を被覆する温水タンク（５
）と、ガス導入管（６）に接続してガス加温槽（７）お
よび湿気導入電磁弁（８）を設け、温水タンク（５）と
、ガス加温槽（７）とにより被滅菌物収容装置（１）内
の温度を一定温度に保温すると共に、間歇的に湿気導入
電磁弁（８）により無菌の湿気を導入して滅菌し、滅菌
終了後における被滅菌物収容装置（Ｌ）内のガスを、ガ
ス排出電磁弁（３）により排出すると共に。(Embodiment) In an embodiment of the present invention, an ethylene oxide gas introduction solenoid valve (2) and an ethylene oxide gas introduction solenoid valve (2) are attached to a sterilization object storage device (1) that accommodates and sterilizes a certain amount of objects to be sterilized. Gas discharge solenoid valve after treatment (3) and cleaning air introduction solenoid valve (4)
In an ethylene oxide gas sterilizer equipped with an ethylene oxide gas sterilizer, a hot water tank (5
), a gas heating tank (7) and a moisture introduction solenoid valve (8) are connected to the gas introduction pipe (6), and the hot water tank (5) and gas heating tank (7) are used to sterilize objects. The temperature inside the storage device (1) is maintained at a constant temperature, and sterile moisture is intermittently introduced by the moisture introduction solenoid valve (8) to sterilize the inside of the storage device (L). The gas is discharged by the gas discharge solenoid valve (3).
洗す用空気導入電磁弁（４）、湿気導入電磁弁（８）に
より真空、空気洗浄すると共に、加湿タイムを夫々一定
時間自動的に無人運転により繰り返し。The washing air introduction solenoid valve (4) and the moisture introduction solenoid valve (8) perform vacuum and air cleaning, and the humidification time is automatically repeated for a certain period of time in an unmanned operation.
加湿、湿気により被滅菌物収容装置（１）内および被滅
菌物に吸着、残留せるエチレンオキサイドガスのイ■毒
ガスを短時間の内に除去するようにした装置てあって１
図中、（９）は排水弁、（１０）は安全升、（＋１）は
圧力スイッチ、（１２）は蒸気管、（１３）は木管、
（１４）は加温電磁弁、 （１５）は減圧弁である。The device is designed to remove within a short time poisonous gas such as ethylene oxide gas that adsorbs and remains in the sterilized object storage device (1) and on the sterilized objects due to humidification and humidity.
In the figure, (9) is a drain valve, (10) is a safety box, (+1) is a pressure switch, (12) is a steam pipe, (13) is a wood pipe,
(14) is a heating solenoid valve, and (15) is a pressure reducing valve.
本発明は叙上のことき構成によるものであって、保温手
段としては、通常病院においては蒸気供給設備における
温水を利用して滅菌３Ｓ：置の外周のタンク（５）内に
温水をＷＵ環させることにより、その滅菌装置内部を５
０°Ｃ乃至６０℃に保持してエチレンオキサイドガスの
有毒ガスを加湿、湿気への吸着を効果的に促進し、史に
間歇的に加湿する５ｃＩ４の湿気には、上記と同様に蒸
気供給設備における凝結水を使用すれば無菌にして錆、
埃などがなく簡便に必要量か供給できると共に、使用経
費か安価ですみ、滅菌装置内への自動添加に際しても有
効に気中に添加できるから、エチレンオキサイドガスの
有毒ガスの吸着が効率的に行うことができるものである
。The present invention is based on the above-mentioned configuration, and as a heat-retaining means, normally in a hospital, hot water in a steam supply facility is used to supply hot water to a WU ring in a tank (5) on the outer periphery of a sterilized 3S station. By doing so, the inside of the sterilizer will be
To humidify the toxic gas of ethylene oxide gas by keeping it at 0°C to 60°C, it effectively promotes its adsorption to the humidity, and for the humidity of 5cI4, which is humidified intermittently, the same steam supply equipment as above is used. Use condensed water to sterilize and prevent rust,
It is dust-free and can be easily supplied in the required amount, is inexpensive to use, and can be effectively added to the air when automatically added into a sterilizer, making it efficient at adsorbing toxic ethylene oxide gas. It is something that can be done.
本発明によるテストの結果を説明すれば、エチレンオキ
サイドガスによる滅菌工程終了後、被滅菌物収容装置（
１）内を真空時間３分、空気洗浄による給気時間３０分
、およびこの間の加湿タイム６０分の夫々を繰り返して
２０時間実施した場合と、滅菌および排気完了後、空気
洗浄による給気時間、および真空時間を２．５分サイク
ルで７回、および被滅菌物収容装置（１）内の温度を６
０度に持続させた場合とのエチレンオキサイドガスの除
去効果については次頁の表に示す如く格段の相違がある
。To explain the test results according to the present invention, after the sterilization process using ethylene oxide gas is completed, the object storage device (
1) When vacuum time is 3 minutes, air supply time by air cleaning is 30 minutes, and humidification time is repeated for 60 minutes during this period for 20 hours, and after sterilization and evacuation are completed, air supply time by air cleaning, and vacuum time 7 times in a 2.5 minute cycle, and the temperature inside the sterilized object storage device (1) to 6
As shown in the table on the next page, there is a significant difference in the ethylene oxide gas removal effect compared to when the temperature is maintained at 0 degrees.
品目ｌでは本発明の加湿ありの方か２．４２倍、品目２
では同９．３３倍、品目３では同１．７倍、品目４では
同１５２．６倍、品目５では同１０．１倍の夫々勝れた
効果を発揮し、特にシルク系においては極めて高い効果
を発揮するものである。For item 1, the humidification of the present invention is 2.42 times higher, and for item 2
It was 9.33 times more effective for item 3, 1.7 times more effective for item 4, 152.6 times more effective for item 5, and 10.1 times more effective for item 5, which is particularly high for silk products. It is effective.
又本発明の効果値に相当するまで加湿なしで実験を継続
した場合の相当日数は、品ｇ１て１４日、品［１２で２
８日、品目３，４で７日、品目５で２１日と相当長き日
数を必要とし、この間これらの品目は使用できずにエチ
レンオキサイドガスの有毒ガス除去のため滅菌処理を継
続しなければならないことになる。更に、対象材料を気
管内チューブ、および気管切開チューブの夫々について
エチレンオキサイドガスの残留追跡を行った結果につい
ては、第２図および第３図に示す通り未発１１の加湿、
加温保存による除去装置によれば、減菌完Ｙ後尚残留す
るエチレンオキサイドガスの残留を短期間に離脱させる
ものである。In addition, if the experiment was continued without humidification until the effect value of the present invention was reached, the equivalent number of days would be 14 days for product g1 and 2 days for product [12].
8 days, 7 days for items 3 and 4, and 21 days for item 5. During this time, these items cannot be used and must be sterilized to remove toxic ethylene oxide gas. It turns out. Furthermore, as shown in Figures 2 and 3, the results of tracing the residual ethylene oxide gas in the endotracheal tube and the tracheostomy tube as target materials are shown in Figures 2 and 3.
According to the removal device using heating storage, residual ethylene oxide gas that remains after sterilization is completed is removed in a short period of time.
（発明の効果）
本発明は叙Ｅのごとく、従来の滅菌装置に加温、加湿を
付与する装置を加設したものであって、これにより被滅
菌物の滅菌完了後、他の装置に移し替えてエチレンオキ
サイドガスの有毒性を離脱する必要なく、然も離脱の期
間を短縮速進するものである。そして作業者においては
作業手間がかからず滅菌作業が安全にできて有毒ガスの
汚染を防止することができ滅菌作業の安全を確保するも
のである。(Effects of the Invention) As shown in the description, the present invention is a conventional sterilizer with a heating and humidifying device added, so that after the object to be sterilized is sterilized, it can be transferred to another device. This eliminates the need to eliminate the toxicity of ethylene oxide gas by replacing the ethylene oxide gas, and shortens and speeds up the withdrawal period. Further, the sterilization work can be performed safely without requiring much labor for the operator, preventing poisonous gas contamination, and ensuring the safety of the sterilization work.
第１図は本発明の構成国、第２図は気管内チューブにお
けるエチレンオキサイドガス残留追跡表、第３図は気管
切開チューブにおけるエチレンオキサイドガス残留追跡
表である。
図中、（１）・・・・・・液域ｃｉｉ物収容装置、 （
２）・・・・・・ガス導入電磁弁、（３）・・・・・・
ガス排出電磁弁、（４）・・・・・・洗浄用空気導入電
磁弁、 （５） −・・・・・温水タンク。
（６）・・・・・・ガス導入管、（７）・・・・・・ガ
ス加温槽、（８）・・・・・・湿気導入電磁弁。FIG. 1 shows the constituent countries of the present invention, FIG. 2 shows a chart for tracking ethylene oxide gas residue in endotracheal tubes, and FIG. 3 shows a chart for tracking ethylene oxide gas residue in tracheostomy tubes. In the figure, (1)...Liquid area cii storage device, (
2)...Gas introduction solenoid valve, (3)...
Gas discharge solenoid valve, (4)... Cleaning air introduction solenoid valve, (5) -... Hot water tank. (6)...Gas introduction pipe, (7)...Gas heating tank, (8)...Moisture introduction solenoid valve.
Claims (1)
置に付属して、エチレンオキサイドガス導入電磁弁と、
滅菌処理後の使用ガス排出電磁弁および洗浄用空気導入
電磁弁を設けたエチレンオキサイドガス滅菌装置におい
て、被滅菌物収容器内を一定温度に保温すると共に、間
歇的に無菌の湿気を導入し、滅菌終了後の収容器内を真
空、空気洗浄による給気、および間歇的にする加湿タイ
ムを夫々一定時間自動的に無人運転により繰り返し加湿
、湿気により収容器内および被滅菌物に吸着、残留せる
エチレンオキサイドガスの有毒ガスを短時間の内に除去
するように装置したことを特徴とするエチレンオキサイ
ドガス滅菌における残留ガス脱離速進装置。An ethylene oxide gas introduction solenoid valve attached to a sterilization object storage device that accommodates and sterilizes a certain amount of objects to be sterilized;
In an ethylene oxide gas sterilizer equipped with a solenoid valve for discharging used gas after sterilization and a solenoid valve for introducing cleaning air, the inside of the container for sterilized objects is kept at a constant temperature, and sterile moisture is intermittently introduced. After sterilization, the inside of the container is vacuumed, air is supplied by air cleaning, and the humidification time is intermittently repeated for a certain period of time automatically and unattended, so that the moisture adsorbs and remains on the inside of the container and the objects to be sterilized. A device for accelerating residual gas desorption in ethylene oxide gas sterilization, characterized in that the device is configured to remove toxic gas of ethylene oxide gas within a short time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1282397A JPH03141952A (en) | 1989-10-30 | 1989-10-30 | Residual gas removal promoting device in ethylene oxide gas sterilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1282397A JPH03141952A (en) | 1989-10-30 | 1989-10-30 | Residual gas removal promoting device in ethylene oxide gas sterilization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03141952A true JPH03141952A (en) | 1991-06-17 |
| JPH0569B2 JPH0569B2 (en) | 1993-01-05 |
Family
ID=17651877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1282397A Granted JPH03141952A (en) | 1989-10-30 | 1989-10-30 | Residual gas removal promoting device in ethylene oxide gas sterilization |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03141952A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1171169A1 (en) * | 1999-04-21 | 2002-01-16 | Stryker Technologies Corporation | Special cycle for ethylene oxide sterilization |
| JP2007185275A (en) * | 2006-01-12 | 2007-07-26 | Miura Co Ltd | Residual gas removal method in gas sterilization |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5615751A (en) * | 1979-07-20 | 1981-02-16 | American Sterilizer Co | Method and device for sterilization |
| JPS5722757A (en) * | 1980-06-13 | 1982-02-05 | Geistlich Soehne Ag | Sterilizing method |
-
1989
- 1989-10-30 JP JP1282397A patent/JPH03141952A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5615751A (en) * | 1979-07-20 | 1981-02-16 | American Sterilizer Co | Method and device for sterilization |
| JPS5722757A (en) * | 1980-06-13 | 1982-02-05 | Geistlich Soehne Ag | Sterilizing method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1171169A1 (en) * | 1999-04-21 | 2002-01-16 | Stryker Technologies Corporation | Special cycle for ethylene oxide sterilization |
| EP1171169A4 (en) * | 1999-04-21 | 2002-06-26 | Stryker Technologies Corp | Special cycle for ethylene oxide sterilization |
| JP2007185275A (en) * | 2006-01-12 | 2007-07-26 | Miura Co Ltd | Residual gas removal method in gas sterilization |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0569B2 (en) | 1993-01-05 |
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