JPS6266863A - Method for replacing gas bomb for gas sterilizing apparatus - Google Patents
Method for replacing gas bomb for gas sterilizing apparatusInfo
- Publication number
- JPS6266863A JPS6266863A JP60206576A JP20657685A JPS6266863A JP S6266863 A JPS6266863 A JP S6266863A JP 60206576 A JP60206576 A JP 60206576A JP 20657685 A JP20657685 A JP 20657685A JP S6266863 A JPS6266863 A JP S6266863A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- valve
- gas cylinder
- sterilization
- cylinder
- 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
Landscapes
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
ｄ１発明の目的
（産業上の利用分野）
この発明に係るガス滅菌装置用ガスボンベの交換方法は
、医療器具、実験器具等を滅菌処理するために、病院、
研究所等に設置されるガス滅菌装置の滅菌容器内に酸化
エチレンのような滅菌ガスを送給するガスボンベを安全
に交換できるようにするものである。Detailed Description of the Invention d1 Purpose of the Invention (Field of Industrial Application) The method for replacing gas cylinders for gas sterilizers according to the present invention is used in hospitals,
This system enables safe replacement of gas cylinders that supply sterilizing gas such as ethylene oxide into the sterilization container of gas sterilization equipment installed in research institutes and the like.
（従来の技術）
病院や研究所等に於いて使用した医療器具、実験器具等
は使用後は滅菌処理を行なって、付着した細菌による感
染を防止しなければならない。(Prior Art) Medical instruments, laboratory instruments, etc. used in hospitals, research institutes, etc. must be sterilized after use to prevent infection by attached bacteria.
このため、従来から滅ＩＪ容器内に高温高圧の水蒸気を
送り込んでこの滅菌容器内に収納された被滅菌物の滅菌
処理を行なう蒸気滅菌器や、滅菌容器内に水蒸気の代り
に酸化エチレンやホルマリンのような滅菌性ガスを送り
込むガス滅菌器が使用されている。このうちのガス滅菌
器は、被滅菌物が熱に弱かったり、或はこれに付着して
いる細菌が耐熱性菌であるような場合に使用される。For this reason, there have been conventional steam sterilizers that send high-temperature, high-pressure steam into a sterilization IJ container to sterilize objects stored in the sterilization container, and steam sterilizers that use ethylene oxide or formalin instead of steam in the sterilization container. A gas sterilizer that delivers sterilizing gas is used. Among these, gas sterilizers are used when the object to be sterilized is sensitive to heat or the bacteria attached to it are heat-resistant bacteria.
図面はこのような場合に使用されるガス滅菌器を示す略
図であるが、まずこのガス滅菌器の構成と作用とについ
て筒中に説Ｉ’ｌ＋する。開閉自在な気密蓋１を設けた
滅菌容器２には、途中に気化器３とガス用開閉弁４とを
設けたガス供給管５の一端が接続されており、このガス
供給管５の他端はガスポンへ６に接続されている。又、
こめ滅菌容器２には、一端に除菌フィルタ７を、途中に
吸気用開閉弁８をそれぞれ設けた吸気管９の他端と、途
中に排気用開閉弁１０と真空ポンプ１１とを設けた排気
管１２の端部とが、それぞれ接続されている。Although the drawing is a schematic diagram showing a gas sterilizer used in such a case, the structure and operation of this gas sterilizer will first be explained in detail. A sterilization container 2 equipped with an airtight lid 1 that can be opened and closed is connected to one end of a gas supply pipe 5 having a vaporizer 3 and a gas on-off valve 4 in the middle, and the other end of the gas supply pipe 5. is connected to gas pump 6. or,
The sterilization container 2 has a sterilization filter 7 at one end, an intake pipe 9 at the other end with an intake on-off valve 8 in the middle, and an exhaust pipe 9 in which an exhaust on-off valve 10 and a vacuum pump 11 are provided in the middle. The ends of the tube 12 are connected to each other.
このように構成されるガス滅菌器を用いて滅菌作業を行
なう場合、気密１１を開いて滅菌容器２内に被滅菌物を
入れてから気密蓋ｌを閉じた後、開閉弁４．８を閉じ、
開閉弁１０を開いた状態で真空ポンプ１１を運転し、滅
菌容器２内を真空にして、被滅菌物の内部にまで滅菌ガ
スが浸透し易くする。滅菌容器２内を一定時間真空状態
に保持したならば、開閉弁８、ｌＯを閉じた状態で開閉
弁４を開き、滅菌容器２内に滅菌ガスを導入する。滅菌
ガスは、滅菌容器２内の圧力が陽圧になるまで供給した
後開閉弁４を閉じて、この滅菌容器２内の圧力を所定時
間一定に保持する。所定時間の滅菌が終ｒしたならば、
開閉弁４を閉じた状態のまま開閉弁８．１０を開放し、
真空ポンプ１１を運転して、滅菌容器２内の減菌ガスを
排出し２、代りにこの滅菌容器２内に無菌空気を送り込
む、真空ポンプ１１の運転を所定時間継続して行なうこ
とにより、器体１内の滅菌ガスは無菌空気と置換され、
被滅菌物に付着した滅菌ガスも除去されるため、真空ポ
ンプ１１の運転を停止トし、気密蓋ｌを開いて滅菌容器
２内の被滅菌物を取り出す。When performing sterilization work using a gas sterilizer configured in this way, the airtight 11 is opened, the object to be sterilized is placed in the sterilization container 2, the airtight lid 1 is closed, and the on-off valve 4.8 is closed. ,
The vacuum pump 11 is operated with the on-off valve 10 open to create a vacuum inside the sterilization container 2, so that the sterilization gas can easily penetrate into the inside of the object to be sterilized. After the inside of the sterilization container 2 is maintained in a vacuum state for a certain period of time, the on-off valve 4 is opened with the on-off valve 8 and 1O closed, and sterilization gas is introduced into the sterilization container 2. After the sterilization gas is supplied until the pressure inside the sterilization container 2 becomes positive, the on-off valve 4 is closed to maintain the pressure inside the sterilization container 2 constant for a predetermined period of time. Once sterilization has been completed for the specified time,
Open the on-off valve 8.10 while keeping the on-off valve 4 closed,
The vacuum pump 11 is operated to exhaust the sterile gas in the sterilization container 2, and sterile air is sent into the sterilization container 2 instead.By continuing to operate the vacuum pump 11 for a predetermined period of time, The sterile gas inside the body 1 is replaced with sterile air,
Since the sterilizing gas adhering to the objects to be sterilized is also removed, the operation of the vacuum pump 11 is stopped, the airtight lid l is opened, and the objects to be sterilized in the sterilization container 2 are taken out.
ガス滅菌装置は上述のように構成され使用されるが、使
用に伴ってガスボンベ６内の滅菌ガスが無くなった場合
は、新しいガスボンベと交換しなければならない、ガス
ポンベ６内の圧力は、このガスポンベ６内のガスの残寸
が僅かになると急激に低下するため、圧力計１３により
ガスポンベ６内の圧力が低下したならば、Ｊｆいガスボ
ンベを取り外して代りに新しいボンベを装着する。The gas sterilizer is configured and used as described above, but if the sterilizing gas in the gas cylinder 6 runs out as a result of use, it must be replaced with a new gas cylinder. If the pressure inside the gas cylinder 6 is reduced by the pressure gauge 13, the gas cylinder 6 is removed and a new cylinder is installed in its place.
この交換作業は、ガス用開閉弁４とガスボンベ６の元弁
１４とを閉じた後、ガス供給管５の端部に設けた可撓管
１５を、古いガスボンベのガスｕｒ出１−１から外して
から、この可撓管１５の端部を新しいガスボンベのガス
吐出口に接続する。新しいガスボンベのガス吐出口に可
撓管１５を接続したならば、Ｌ−記ガス用開閉弁４と元
弁１４とを開き、！ＩｉＬいガスボンベから滅菌容器２
内に減菌ガスを供給する。This replacement work involves closing the gas on-off valve 4 and the main valve 14 of the gas cylinder 6, and then removing the flexible tube 15 provided at the end of the gas supply pipe 5 from the gas urination 1-1 of the old gas cylinder. Then, connect the end of the flexible tube 15 to the gas outlet of a new gas cylinder. After connecting the flexible tube 15 to the gas discharge port of the new gas cylinder, open the L-listed gas on-off valve 4 and the main valve 14, and! IiL gas cylinder to sterile container 2
Supply sterile gas inside.
（発明が解決しようとする問題点）
ところが、上述のようにしてガス滅菌装置用のガスボン
ベを交換する場合、次に述べるような不都合を生じる。(Problems to be Solved by the Invention) However, when replacing the gas cylinder for the gas sterilizer as described above, the following inconvenience occurs.
即ち、ガスポンベ６内の圧力（ゲージ圧）は、新しいも
ので４ ｋｇ／ｃｍ’程度、交換直前の古いものでも２
ｋｇ／ｃｍ″程度あるため、ガス用開閉弁４と元弁１
４とをいずれも閉じた場合に於いても、両弁４．１４の
間に位置するガス供給管５と可撓管１５との内部に相当
賃の滅菌ガスが残留するようになる。この残留滅菌ガス
は、可撓管１５をガスボンベ６のガス吐出口から取り外
した場合に外部に噴出し、作業者の身体に付着する他、
室内に充満するため好ましくない。In other words, the pressure (gauge pressure) inside the gas pump 6 is about 4 kg/cm' for a new one, and about 2 kg/cm' for an old one just before replacement.
kg/cm'', so gas on-off valve 4 and main valve 1
Even when both valves 4 and 4 are closed, a considerable amount of sterilizing gas remains inside the gas supply pipe 5 and the flexible pipe 15 located between both valves 4 and 14. When the flexible tube 15 is removed from the gas discharge port of the gas cylinder 6, this residual sterilization gas is blown out to the outside, and may adhere to the body of the worker.
This is not desirable because it fills the room.
未発明のガス滅菌装置用ガスボンベの交換方法は、［二
連のような不都合を解消するものである。The uninvented method for replacing gas cylinders for gas sterilizers solves the inconvenience of [double replacement].
６１発１１の構成
（問題を解決するための「段）
本発明のガスＭ閑装置用ガスボンベの交換方法は、残寸
の少なくなったガスボンベの元弁を閉じた後、滅菌容器
内の気体を吸引するために設けた真空ポンプを運転する
ことにより、Ｌ記ガスボンベから滅菌容器に滅菌ガスを
送給する管内に残留する滅菌ガスを排出する。61 to 11 configurations (steps to solve the problem) The method of replacing a gas cylinder for a gas M emptying device according to the present invention is to close the main valve of a gas cylinder with little remaining capacity, and then drain the gas in the sterilization container. By operating the vacuum pump provided for suction, the sterilizing gas remaining in the pipe that feeds the sterilizing gas from the L gas cylinder to the sterilizing container is discharged.
管内に残留する滅菌ガスの排出が完ｒしたならば、古い
ガスボンベの吐出口から滅菌ガス供給用の管の端部を外
し、この端部を新しいガスボンベの吐出口に接続してか
らこの新しいガスボンベの元弁を開いて、ガスボンベの
交換作業を終了する。Once the sterile gas remaining in the pipe has been completely discharged, remove the end of the sterile gas supply pipe from the outlet of the old gas cylinder, connect this end to the outlet of the new gas cylinder, and then insert the new gas cylinder. Open the main valve to finish replacing the gas cylinder.
（実 施 例）
次に、実施例を説明しつつ未発１多１を更に詳しく説明
する。(Example) Next, while explaining an example, 1-1-1 will be explained in more detail.
まず、従来から使用されているガス滅菌装置に改良を加
えることなく、そのまま本発明の交換方法を実施する第
一実施例について説明する。First, a first embodiment will be described in which the replacement method of the present invention is implemented as is without making any improvements to a conventionally used gas sterilizer.
第一実施例の場合、ガスポンベ６内の滅菌ガスの残量が
少なくなったならば、このガスポンベ６に付属の元弁１
４を閉じ、ガス用開閉弁４と排気用開閉弁１０とを開き
、吸気用開閉弁８を閉じた状態で真空ポンプ１１を運転
する。この真空ポンプ１１の運転により、滅菌容器２内
に残留する滅菌ガスとともに、気化器３．ガス供給ｔｒ
！５、可撓管１５内に残留する減菌ガスが排出される。In the case of the first embodiment, when the remaining amount of sterilizing gas in the gas pump 6 becomes low, the main valve attached to the gas pump 6
4 is closed, the gas on-off valve 4 and the exhaust on-off valve 10 are opened, and the vacuum pump 11 is operated with the intake on-off valve 8 closed. This operation of the vacuum pump 11 causes the sterilization gas remaining in the sterilization container 2 to be removed from the vaporizer 3. gas supply tr
! 5. The sterilizing gas remaining in the flexible tube 15 is discharged.
残留滅菌ガスの排出が完了したならば、ガス用開閉弁４
を閉じてから可撓管１５の端部を残量の少なくなった古
いガスポンベ６の吐出口から取り外し、代りにこの可撓
管１５の端部を新しいガスポンベ６の吐出口に接続する
。この新しいガスポンベ６に付属の元弁１４は、吐出口
に可撓管１５の端部を接続した後に開き、ガスポンベの
交換作業を終Ｔする。Once the residual sterilization gas has been discharged, open the gas on-off valve 4.
After closing, the end of the flexible tube 15 is removed from the outlet of the old gas pump 6 whose remaining amount is low, and the end of the flexible tube 15 is connected to the outlet of the new gas pump 6 instead. The main valve 14 attached to this new gas pump 6 is opened after the end of the flexible tube 15 is connected to the discharge port, and the gas pump replacement work is completed.
次に、従来から使用されているガス滅菌装置に若［の改
良を加えて、本発明の交換方法を実施する第一実施例に
ついて説Ｉｌｌする。Next, a first embodiment will be described in which the replacement method of the present invention is carried out by adding some improvements to a conventionally used gas sterilizer.
この第二実施例に使用するガス滅菌９２ｔの場合、図面
にＫＪ＆ｇで示すように、ガス供給’ｉ’？５の途中と
、排気管１２の途中で排気開閉弁ｌＯと真空ポンプ１１
との間の部分とに両端を接続し、途中に開閉弁１６を有
する短絡管１７を設けている。In the case of the 92t gas sterilizer used in this second embodiment, as shown by KJ&g in the drawing, the gas supply 'i'? 5 and the exhaust pipe 12, the exhaust opening/closing valve lO and the vacuum pump 11 are installed.
A short-circuit pipe 17 is provided which has both ends connected to the part between and has an on-off valve 16 in the middle.
ガスポンベ６の残量が少なくなったならば、このガスポ
ンベ６の元弁１４とガス用開閉弁４と排気用開閉弁１０
とを閉じ、真空ポンプ１１を運転する。この真空ポンプ
１１の運転により、ガス供給管５のガス用開閉弁４より
も端寄り部分内と可撓管１５内とに残留する滅菌ガスが
排出される。この滅菌ガスの排出が完了したならば、開
閉弁１６を閉じるとともに真空ポンプ１１の運転を停止
し、可撓管１５の端部を古いガスポンベ６の吐出口から
外し、代りに新しいガスポンベ６の吐出口と可撓管１５
の端部とを接続し、この新しいガスポンベ６に付属の元
弁を開いて、ガスポンベの交換作業を終了する。When the remaining amount of the gas pump 6 becomes low, the main valve 14 of the gas pump 6, the gas on-off valve 4, and the exhaust on-off valve 10
and the vacuum pump 11 is operated. By operating the vacuum pump 11, the sterilizing gas remaining in the portion of the gas supply pipe 5 closer to the end than the gas on-off valve 4 and in the flexible pipe 15 is discharged. When the discharge of this sterilizing gas is completed, close the on-off valve 16, stop the operation of the vacuum pump 11, remove the end of the flexible tube 15 from the discharge port of the old gas pump 6, and replace it with the discharge port of the new gas pump 6. Outlet and flexible tube 15
, and open the main valve attached to this new gas pump 6 to complete the gas pump replacement work.
Ｃ１発明の効果
本発明のガス滅菌装置用ガスボンベの交換方法は以１−
に述べた通り、滅菌ガス供給用の管の端をガスポンベ６
の吐出口から取り外すのに先立ち、Ｆ−配管内に残留す
る滅菌ガスを排出するため１作！者等室内にいる者がこ
の残留Ｍ菌ガスにより障害を受けることがなく、安全で
ある。C1 Effects of the Invention The method of replacing a gas cylinder for a gas sterilizer according to the present invention is as follows.
As mentioned above, connect the end of the sterile gas supply tube to the gas pump 6.
Before removing it from the outlet of the F-tube, make one step to exhaust the sterile gas remaining in the F-piping! It is safe because the people in the room will not be harmed by this residual M bacterial gas.
図面はガス滅菌装置を示す略図である。
ｌ：気密４．２：減菌容器、３：気化器、４：ガス用開
閉弁、５：ガス供給管、６：ガスポンベ、７：除菌フィ
ルタ、８：吸気用開閉弁、９：吸気管、ｌＯ：排気用開
閉弁、ｌｌ：真空ポンプ、１２：排気管、１３：圧力計
、１４：元弁、１５：可撓管、１６：開閉弁、１７二短
絡管。The drawing is a schematic representation of a gas sterilizer. l: Airtight 4.2: Sterilization container, 3: Vaporizer, 4: Gas on-off valve, 5: Gas supply pipe, 6: Gas pump, 7: Sterilization filter, 8: Intake on-off valve, 9: Intake pipe , 10: Exhaust on-off valve, 11: Vacuum pump, 12: Exhaust pipe, 13: Pressure gauge, 14: Main valve, 15: Flexible pipe, 16: On-off valve, 17 Two short-circuit pipes.
Claims (1)
容器内の気体を吸引するために設けた真空ポンプを運転
することにより、上記ガスボンベから滅菌容器に滅菌ガ
スを送給する管内に残留する滅菌ガスを排出し、この管
内に残留する滅菌ガスの排出が完了したならば、古いガ
スボンベの吐出口から滅菌ガス供給用の管の端部を外し
、この端部を新しいガスボンベの吐出口に接続してから
この新しいガスボンベの元弁を開いて、ガスボンベの交
換作業を終了するガス滅菌装置用ガスボンベの交換方法
。After closing the main valve of a gas cylinder whose remaining amount is low, by operating a vacuum pump installed to suck the gas in the sterilized container, the gas remaining in the pipe that delivers sterile gas from the gas cylinder to the sterilized container is removed. Once the sterile gas remaining in the pipe has been discharged, remove the end of the sterile gas supply pipe from the outlet of the old gas cylinder, and connect this end to the outlet of the new gas cylinder. A method of replacing a gas cylinder for a gas sterilizer, which involves connecting the new gas cylinder and then opening the main valve of the new gas cylinder to complete the gas cylinder replacement process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60206576A JPS6266863A (en) | 1985-09-20 | 1985-09-20 | Method for replacing gas bomb for gas sterilizing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60206576A JPS6266863A (en) | 1985-09-20 | 1985-09-20 | Method for replacing gas bomb for gas sterilizing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6266863A true JPS6266863A (en) | 1987-03-26 |
| JPH0556744B2 JPH0556744B2 (en) | 1993-08-20 |
Family
ID=16525686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60206576A Granted JPS6266863A (en) | 1985-09-20 | 1985-09-20 | Method for replacing gas bomb for gas sterilizing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6266863A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63264066A (en) * | 1987-04-23 | 1988-10-31 | 株式会社 千代田製作所 | Method for replacing bomb for gas sterilizer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3012588C (en) | 2016-01-19 | 2020-04-28 | Ricoh Company, Ltd. | Inkjet recording device and inkjet recording method |
-
1985
- 1985-09-20 JP JP60206576A patent/JPS6266863A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63264066A (en) * | 1987-04-23 | 1988-10-31 | 株式会社 千代田製作所 | Method for replacing bomb for gas sterilizer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0556744B2 (en) | 1993-08-20 |
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