JP2009284916A - High-pressure steam sterilizer - Google Patents

High-pressure steam sterilizer Download PDF

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Publication number
JP2009284916A
JP2009284916A JP2008137352A JP2008137352A JP2009284916A JP 2009284916 A JP2009284916 A JP 2009284916A JP 2008137352 A JP2008137352 A JP 2008137352A JP 2008137352 A JP2008137352 A JP 2008137352A JP 2009284916 A JP2009284916 A JP 2009284916A
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Japan
Prior art keywords
chamber
sterilization
test
course
pressure steam
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JP2008137352A
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Japanese (ja)
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JP5100506B2 (en
Inventor
Nobuyuki Isoo
信行 磯尾
Masami Akesato
正巳 明里
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Sanyo Electric Co Ltd
Sanyo Techno Solutions Tottori Co Ltd
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Sanyo Electric Co Ltd
Tega Sanyo Industry Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To judge whether a temperature reaches the sterilizing temperature in a usual operation mode by performing the usual operation mode to perform a test process for the purpose of solving the problem that it can be judged whether the conditions in a warming operation mode are satisfied in a high-pressure steam sterilizer constituted so that the test process for judging the remaining of air in a sterilizing tank in the warning operation mode performed before the usual operation mode, but it is not judged whether the temperature reaches the sterilizing temperature in the usual operation mode. <P>SOLUTION: A drying process is performed at the end in the usual operation mode in a case that a sterilizing target article is sterilized: in the state that a test course is selected, a sterilizing mode is started by turning a start switch ON and the usual operation mode is completed through an exhaustion and drainage process in the state that the drying process is not performed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、主として病院等に設置して医療用器具等の被滅菌物を高圧蒸気下で滅菌する
高圧蒸気滅菌器に関する。 The present invention relates to a high-pressure steam sterilizer that is mainly installed in a hospital or the like and sterilizes an object to be sterilized such as a medical instrument under high-pressure steam.

高圧蒸気滅菌器の滅菌槽内や被滅菌物内から空気を十分排除できるか否かを確認して、
正常動作が達成できるか否かを確認する技術がある。これは、通常運転モードの前に、滅
菌槽やその内部の空気を予め昇温させておく暖気運転モードを備えるものであり、滅菌槽
内にテストパックを収納した状態でこの暖気運転を開始し、真空引きと加熱を行ない、滅
菌槽内に蒸気を導入して滅菌槽内を所定温度で所定時間維持し、テストパック内に入れた
テストシートの変化によって、滅菌槽内の空気の残留を判定するテスト工程を行なうもの
である。（特許文献１参照）。
特開２０００−１４７４９号公報 Check if air can be sufficiently removed from the sterilization tank of the autoclave and the object to be sterilized,
There is a technique for confirming whether normal operation can be achieved. This is equipped with a warm-up operation mode in which the temperature of the sterilization tank and the air inside the sterilization tank is pre-heated before the normal operation mode, and this warm-up operation is started with the test pack stored in the sterilization tank. Evacuate and heat, introduce steam into the sterilization tank, maintain the sterilization tank at a predetermined temperature for a predetermined time, and determine the remaining air in the sterilization tank by changing the test sheet placed in the test pack The test process is performed. (See Patent Document 1).
JP 2000-14749 A

この特許文献１のものは、通常運転モードの前に行なう暖気運転モードにおいて、滅菌
槽内の空気の残留を判定するテスト工程を行なうものである。このため、一度または複数
回の通常運転を行なえば滅菌槽の温度は暖まっているため、途中にテスト工程を行なうた
めには、滅菌槽の温度が冷えるまで待たなければならない。 The thing of this patent document 1 performs the test process which determines the residual of the air in a sterilization tank in the warm air operation mode performed before normal operation mode. For this reason, if the normal operation is performed once or a plurality of times, the temperature of the sterilization tank is warmed. Therefore, in order to perform the test process on the way, it is necessary to wait until the temperature of the sterilization tank cools down.

また、この特許文献１のものは、滅菌槽内の空気の残留を判定するテスト工程であるが
、これは、暖気運転モードでの条件を満たすか否かが判定できるものであって、通常運転
モードで行なう滅菌温度に到達できるか否かの判定は行なっていない。 Moreover, although the thing of this patent document 1 is a test process which determines the residual of the air in a sterilization tank, this can determine whether the conditions in warm air operation mode are satisfied, Comprising: Normal operation | movement It is not determined whether the sterilization temperature performed in the mode can be reached.

本発明は、このような点に鑑み、通常運転モードを実行してテスト工程を行ない、通常
運転モードで行なう滅菌温度に到達できるか否かの判定をするようにする。この場合、収
納された被滅菌物の滅菌を行う場合の通常運転モードでは、最後に乾燥工程を行なうが、
テストの評価に関係しない乾燥工程を行なわずにテスト工程を終了するようにして、テス
ト工程時間の短縮化を図るようにするものである。 In view of the above, the present invention performs a test process by executing the normal operation mode, and determines whether or not the sterilization temperature performed in the normal operation mode can be reached. In this case, in the normal operation mode when sterilizing the objects to be sterilized, the drying process is finally performed.
The test process is terminated without performing a drying process that is not related to the evaluation of the test, thereby shortening the test process time.

本発明の高圧蒸気滅菌器は、収納された被滅菌物を高圧蒸気下で滅菌するチャンバーと
前記チャンバー内を真空引きする真空ポンプを備え、スタートスイッチのオン（ＯＮ）に
よって滅菌モードの運転を開始し、前記チャンバー内に供給された加熱用水を真空下で加
熱蒸発させ前記チャンバー内の被滅菌物を高温高圧蒸気下で滅菌した後、前記チャンバー
内から排気・排水し、前記チャンバー内を乾燥する各工程を行なう高圧蒸気滅菌器におい
て、前記高圧蒸気滅菌器の正常動作を確認するテストコースと、このテストコースを選択
するテストスイッチを備え、前記テストコースが選択された状態において、前記スタート
スイッチのオン（ＯＮ）によって前記滅菌モードが開始し前記排気・排水工程後に、前記
乾燥工程を行なわない状態で終了することを特徴とする。 The high-pressure steam sterilizer of the present invention includes a chamber for sterilizing a stored object to be sterilized under high-pressure steam and a vacuum pump for evacuating the inside of the chamber, and starts operation in a sterilization mode by turning on a start switch (ON). Then, the water for heating supplied into the chamber is heated and evaporated under vacuum to sterilize an object to be sterilized under high-temperature and high-pressure steam, and then exhausted and drained from the chamber to dry the chamber. The high-pressure steam sterilizer that performs each step includes a test course for confirming normal operation of the high-pressure steam sterilizer, and a test switch for selecting the test course. When the test course is selected, the start switch ON (ON) starts the sterilization mode, and after the exhaust / drain process, finishes without performing the drying process. Characterized in that it.

本発明では、テストコースを選択した状態で通常運転モードを開始し、通常運転モード
で行なう滅菌温度に到達できるか否かの判定をするため、実際の滅菌に適する状態である
か否かの判定を適格に行なえるものとなる。また、通常運転モードで行なわれる乾燥工程
は、テストの評価に関係しないため、このテストコースでは行なわずに終了するようにし
ており、テスト工程時間の短縮化を図ることができるものである。 In the present invention, the normal operation mode is started with the test course selected, and it is determined whether or not the sterilization temperature can be reached in the normal operation mode. Can be done properly. Further, since the drying process performed in the normal operation mode is not related to the evaluation of the test, the drying process is not performed in this test course, and the test process time can be shortened.

本発明の高圧蒸気滅菌器は、収納された被滅菌物を高圧蒸気下で滅菌するチャンバーと
前記チャンバー内を真空引きする真空ポンプを備え、スタートスイッチのオン（ＯＮ）に
よって滅菌モードの運転を開始し、前記チャンバー内に供給された加熱用水を真空下で加
熱蒸発させ前記チャンバー内の被滅菌物を高温高圧蒸気下で滅菌した後、前記チャンバー
内から排気・排水し、前記チャンバー内を乾燥する各工程を行なう高圧蒸気滅菌器におい
て、前記高圧蒸気滅菌器の正常動作を確認するテストコースと、このテストコースを選択
するテストスイッチを備え、前記テストコースが選択された状態において、前記スタート
スイッチのオン（ＯＮ）によって前記滅菌モードが開始し前記排気・排水工程後に、前記
乾燥工程を行なわない状態で終了するようにしたものであり、本発明の実施例を以下に記
載する。 The high-pressure steam sterilizer of the present invention includes a chamber for sterilizing a stored object to be sterilized under high-pressure steam and a vacuum pump for evacuating the inside of the chamber, and starts operation in a sterilization mode by turning on a start switch (ON). Then, the water for heating supplied into the chamber is heated and evaporated under vacuum to sterilize an object to be sterilized under high-temperature and high-pressure steam, and then exhausted and drained from the chamber to dry the chamber. The high-pressure steam sterilizer that performs each step includes a test course for confirming normal operation of the high-pressure steam sterilizer, and a test switch for selecting the test course. When the test course is selected, the start switch ON (ON) starts the sterilization mode, and after the exhaust / drain process, finishes without performing the drying process. Is obtained by way describes embodiments of the present invention are described below.

本発明の実施形態について説明する。図１は本発明に係る高圧蒸気滅菌器の構造図、図
２は本発明に係る高圧蒸気滅菌器の動作フローチャート、図３は本発明に係る高圧蒸気滅
菌器の工程動作図、図４は本発明に係る高圧蒸気滅菌器の操作パネルの正面図、図５は本
発明に係る高圧蒸気滅菌器の制御ブロック図である。 An embodiment of the present invention will be described. 1 is a structural diagram of a high-pressure steam sterilizer according to the present invention, FIG. 2 is an operation flowchart of the high-pressure steam sterilizer according to the present invention, FIG. 3 is a process operation diagram of the high-pressure steam sterilizer according to the present invention, and FIG. FIG. 5 is a control block diagram of the high-pressure steam sterilizer according to the present invention.

本発明による実施例を先ず図１に基づき説明すると、１は高圧蒸気滅菌器ＭＫの本体の
外ケースであり、内部に医療用器具等の被滅菌物３を収納して滅菌処理等を行う前面開口
２を形成した円筒状のチャンバー４を収納配置している。 An embodiment according to the present invention will be described first with reference to FIG. 1. Reference numeral 1 denotes an outer case of the main body of the high-pressure steam sterilizer MK, and a front surface in which an object to be sterilized 3 such as a medical instrument is housed and sterilized. A cylindrical chamber 4 having an opening 2 is accommodated.

５は上記チャンバー４内の底部に配設したシーズヒータ等にて構成した滅菌ヒータで、
上方をヒータカバー６により被覆し、このヒータカバーの上に被滅菌物３を載置し、かつ
ヒータカバー６の前端部と前面開口２を開閉自在に閉塞する蓋７の内面との間に通風用の
間隙８を設けている。 5 is a sterilization heater composed of a sheathed heater or the like disposed at the bottom of the chamber 4.
The upper part is covered with the heater cover 6, the article to be sterilized 3 is placed on the heater cover, and ventilation is provided between the front end of the heater cover 6 and the inner surface of the lid 7 that closes the front opening 2 so that it can be opened and closed. A gap 8 is provided.

９は、終端をチャンバー４内の底部に連通した供給管で、始端をエアーフィルター１０
に接続した空気供給流路１１と、始端を貯水タンク１２の水中に開口した注水流路１３と
を接続し、空気供給流路１１の途中には第１電磁弁１４を接続し、注水流路１３の途中に
は第２電磁弁１５を接続していると共に、その始端部にはコイル状の第１熱交換器１６を
設けている。 9 is a supply pipe whose end is in communication with the bottom of the chamber 4, and whose start is the air filter 10.
An air supply passage 11 connected to the water supply passage 11 is connected to a water injection passage 13 whose start end is opened in the water of the water storage tank 12, and a first electromagnetic valve 14 is connected in the middle of the air supply passage 11. A second electromagnetic valve 15 is connected in the middle of 13, and a coiled first heat exchanger 16 is provided at the start end thereof.

１７は、一端をチャンバー４内の後壁上部に連通し、他端を貯水タング１２内の上方位
置で開口した排気流路で、途中に第３電磁弁１８を接続していると共に、他端寄りに、水
中に位置するコイル状の第２熱交換部１９を設けている。 Reference numeral 17 denotes an exhaust passage having one end communicating with the upper part of the rear wall in the chamber 4 and the other end opened at an upper position in the water storage tongue 12. The third electromagnetic valve 18 is connected midway and the other end A coil-shaped second heat exchanging part 19 located in the water is provided on the side.

２０は、一端をチャンバー４内の側壁の中間高さ位置に連通し、他端を貯水タング１２
内の上方位置で開口した排出流路で、途中に第４電磁弁２１と真空ポンプ２２を接続して
いる。 20 is connected to the middle height position of the side wall in the chamber 4 at one end and the water storage tongue 12 at the other end.
The fourth solenoid valve 21 and the vacuum pump 22 are connected in the middle of the discharge flow path opened at the upper position inside.

また、チャンバー４の内部後方側壁には、チャンバー４内の温度を検出する温度センサ
ー２３を配設すると共に、排気流路１７の第３電磁弁１８よりチャンバー４寄りには、圧
力計２４と圧力センサー２５を接続し、かつ、チャンバー４の外周面には、チャンバー４
の壁を加熱するバンド状の乾燥ヒータ２６を装着している。 In addition, a temperature sensor 23 for detecting the temperature in the chamber 4 is disposed on the inner rear side wall of the chamber 4, and a pressure gauge 24 and a pressure are disposed closer to the chamber 4 than the third electromagnetic valve 18 of the exhaust passage 17. The sensor 25 is connected to the outer peripheral surface of the chamber 4 and the chamber 4
A band-shaped drying heater 26 for heating the wall is mounted.

２７は、外ケース１内の適所に配置した制御手段で、図示しないマイクロコンピュータ
を中心に構成し、チャンバー４内の温度を検出する温度センサー２３の検出温度、圧力セ
ンサー２５の検出圧力並びに予め設定されたプログラムに従って、滅菌ヒータ５、第１電
磁弁１４、第２電磁弁１５、第３電磁弁１８、第４電磁弁２１、真空ポンプ２２等への通
電を制御し、また、図４に示す操作パネル３０に配置した表示部３２等の制御を行うもの
である。 Reference numeral 27 denotes a control means arranged at a proper position in the outer case 1, which is configured around a microcomputer (not shown), detects the temperature in the chamber 4, detects the temperature in the temperature sensor 23, detects the pressure in the pressure sensor 25, and is preset. In accordance with the programmed program, energization to the sterilization heater 5, the first electromagnetic valve 14, the second electromagnetic valve 15, the third electromagnetic valve 18, the fourth electromagnetic valve 21, the vacuum pump 22 and the like is controlled, and is shown in FIG. The display unit 32 and the like arranged on the operation panel 30 are controlled.

本発明では、乾燥ヒータ２６への通電と非通電を選択する準備ボタン４５を設け、準備
ボタン４５のオン（ＯＮ）操作によって、滅菌モードの運転開始前に予め乾燥ヒータ２６
への通電にて、選択的にチャンバー４の壁を加熱する予備加熱モードとすることができる
ようにしている。 In the present invention, a preparation button 45 for selecting energization or de-energization of the drying heater 26 is provided, and the drying heater 26 is preliminarily set by the ON operation of the preparation button 45 before the operation in the sterilization mode is started.
The preheating mode in which the wall of the chamber 4 is selectively heated can be set by energizing the.

高圧蒸気滅菌器ＭＫの前面部に配置した操作パネル３０には、高圧蒸気滅菌器ＭＫの動
作条件や動作モードを設定する設定部３１と、動作条件や動作モードを表示する表示部３
２等を配置している。設定部３１には、時刻設定部３１Ａ、予約設定部３１Ｂ、コース選
択部３１Ｃ、設定確認部３１Ｄ、スタートキー（またはスタートボタンと称し、スタート
スイッチの操作部である）３９、ストップキー４０、温度や時間や時刻の設定値のアップ
ダウン部３１Ｇ、完了予定キー４１、テストキー４２、及び準備ボタン（準備キー）４５
等を配置している。表示部３２は、温度や時刻等の表示部３２Ａと、乾燥・予約等の時間
表示部３２Ｂと、被滅菌物３の種類ごとのコース表示部３２Ｃと、プロセス表示部３２Ｄ
、蓋７のロック状態表示部３２Ｅ等を備えている。予約設定部３１Ｂは、これをＯＮした
状態で時刻設定部３１Ａとアップダウン部３１Ｇによって滅菌開始日時を調整し、設定確
認部３１Ｄによって設定するものである。 The operation panel 30 disposed on the front surface of the high-pressure steam sterilizer MK includes a setting unit 31 for setting operation conditions and operation modes of the high-pressure steam sterilizer MK, and a display unit 3 for displaying the operation conditions and operation modes.
2 etc. are arranged. The setting unit 31 includes a time setting unit 31A, a reservation setting unit 31B, a course selection unit 31C, a setting confirmation unit 31D, a start key (or a start button, which is an operation unit of a start switch) 39, a stop key 40, a temperature Up / down unit 31G for setting values of time and time, completion schedule key 41, test key 42, and preparation button (preparation key) 45
Etc. are arranged. The display unit 32 includes a display unit 32A such as temperature and time, a time display unit 32B such as drying / reservation, a course display unit 32C for each type of article to be sterilized 3, and a process display unit 32D.
And a lock state display part 32E of the lid 7 and the like. The reservation setting unit 31B adjusts the sterilization start date and time by the time setting unit 31A and the up / down unit 31G in a state in which the reservation setting unit 31B is turned on, and sets it by the setting confirmation unit 31D.

制御手段２７は、入出力ポートに操作パネル３０が接続され、入力ポートに温度センサ
ー２３と圧力センサー２５が接続され、出力ポートに滅菌ヒータ５、乾燥ヒータ２６、第
１電磁弁１４、第２電磁弁１５、第３電磁弁１８、第４電磁弁２１、真空ポンプ２２、ブ
ザー３３等が接続されている。 In the control means 27, the operation panel 30 is connected to the input / output port, the temperature sensor 23 and the pressure sensor 25 are connected to the input port, and the sterilization heater 5, the drying heater 26, the first solenoid valve 14, and the second solenoid are connected to the output port. A valve 15, a third electromagnetic valve 18, a fourth electromagnetic valve 21, a vacuum pump 22, a buzzer 33, and the like are connected.

滅菌操作に際しては、先ず、電源スイッチ（図示せず）をオン（ＯＮ）操作することに
より、スタンバイ状態となる。図３に示すように、スタンバイ状態で給気バルブである第
１電磁弁１４が開く。この状態で、蓋７を開いて開口２よりチャンバー４内に被滅菌物３
をセットし、蓋７を閉じる。蓋７はロック装置（図示せず）にて閉じた状態にロックされ
、閉蓋検出スイッチ（図示せず）が作動して制御手段２７の動作にて蓋７のロック状態表
示部３２ＥのＬＥＤが点灯する。この状態で高圧蒸気滅菌器ＭＫの運転を開始できる状態
となる。 In the sterilization operation, first, a power switch (not shown) is turned on (ON) to enter a standby state. As shown in FIG. 3, the first solenoid valve 14 that is an air supply valve is opened in the standby state. In this state, the lid 7 is opened and the object to be sterilized 3 enters the chamber 4 from the opening 2.
Is set and the lid 7 is closed. The lid 7 is locked in a closed state by a lock device (not shown), a lid detection switch (not shown) is activated, and the LED of the lock state display portion 32E of the lid 7 is operated by the operation of the control means 27. Light. In this state, the operation of the high-pressure steam sterilizer MK can be started.

このように高圧蒸気滅菌器ＭＫの運転を開始できる状態において、どのコースで滅菌処
理するかの選択をコース選択部３１Ｃによって行なう。コース選択部３１ＣのＯＮごとに
コース表示部３２Ｃの１〜４のコースナンバーの左側のＬＥＤ３２Ｃ１の点灯位置が切り
替わり、選択したコースを表示すると共に、プロセス表示部３２Ｄの各ＬＥＤ３２Ｄ１の
点灯位置が切り替わって、選択したコースのプロセスが表示される。コースを選択した後
、表示部３２Ａを見て滅菌温度を変更したいときは、アップダウン部３１Ｇによって所定
値に設定した後、ＯＫならば設定確認部３１ＤをＯＮする。 Thus, in a state where the operation of the high-pressure steam sterilizer MK can be started, the course selection unit 31C selects which course is sterilized. Each time the course selection unit 31C is turned ON, the lighting position of the LED 32C1 on the left side of the course numbers 1 to 4 of the course display unit 32C is switched to display the selected course, and the lighting position of each LED 32D1 of the process display unit 32D is switched. The process of the selected course is displayed. After selecting the course, if it is desired to change the sterilization temperature by looking at the display unit 32A, the setting confirmation unit 31D is turned on if the up / down unit 31G sets it to a predetermined value and then it is OK.

この状態で準備ボタン４５をオン（ＯＮ）操作する。準備ボタン４５のオン（ＯＮ）操
作にて、図２のフローチャートの「準備」に進み、図３に示すように乾燥ヒータ２６へ通
電され、チャンバー４の壁が加熱される予備加熱モードとなる。また、第３電磁弁１８が
開いてチャンバー４の湿気を排出する。また温度センサー２３の検出温度に基づき、制御
手段２７によって乾燥ヒータ２６への通電が制御され、チャンバー４内の温度が所定温度
に制御され、チャンバー４の壁が所定温度に加熱されることとなる。チャンバー４の壁の
加熱状態は、温度センサー２３の検出温度に基づき表示器３２Ａに表示される温度によっ
て確認できる。 In this state, the preparation button 45 is turned on. When the preparation button 45 is turned on (ON), the process proceeds to “preparation” in the flowchart of FIG. 2, and the drying heater 26 is energized as shown in FIG. 3 to enter the preheating mode in which the wall of the chamber 4 is heated. Further, the third electromagnetic valve 18 is opened and the moisture in the chamber 4 is discharged. Further, the energization of the drying heater 26 is controlled by the control means 27 based on the temperature detected by the temperature sensor 23, the temperature in the chamber 4 is controlled to a predetermined temperature, and the wall of the chamber 4 is heated to the predetermined temperature. . The heating state of the wall of the chamber 4 can be confirmed by the temperature displayed on the display 32A based on the temperature detected by the temperature sensor 23.

この温度を確認して予備加熱モードを経た後、図２のフローチャートにおいて、スター
トキー３９がオン（ＯＮ）操作された（押された）ことがステップＳ１で確認され、予約
設定有りまたは予約設定無しのステップを経て、蓋７のロック状態を検出した後、ステッ
プＳ２において、滅菌時間がゼロ（滅菌工程終了）のときは後述の乾燥工程に進み、滅菌
時間がゼロ以外（設定された滅菌工程が終了していない状態）では前処理工程に進む。 After confirming this temperature and passing through the preheating mode, in the flowchart of FIG. 2, it is confirmed in step S1 that the start key 39 has been turned on (pressed), and there is a reservation setting or no reservation setting. After detecting the locked state of the lid 7 through the above steps, when the sterilization time is zero (the sterilization process is completed) in step S2, the process proceeds to the drying process described later, and the sterilization time is other than zero (the set sterilization process is In a state where the process has not been completed, the process proceeds to a pretreatment process.

スタートキー３９をオン（ＯＮ）操作により、図３に示す工程動作に示すように、前処
理工程が開始し、乾燥ヒータ２６へ通電が非通電となり、蓋７のロック装置（図示せず）
が作動してドアロックし、真空ポンプ２２に通電すると共に第４電磁弁２１を開き、排出
通路２０よりチャンバー４内の空気を吸引して外部に排出する。この排出を開始してから
例えば３０秒、或いは圧力センサー２５の検出圧力が例えば−２０ｋＰａに達すると、所
定時間（例えば運転開始後３分）第１電磁弁１４を開いて、供給管９及び空気供給流路１
１よりチャンバー４内に外気を供給し、チャンバー４の内面等を乾燥した後、第１電磁弁
１４を閉じ、第２電磁弁１５を開いて所定水位（ヒータカバー６より下方）迄注水する注
水工程を経て、更に所定時間（例えば運転開始後８分３０秒）真空ポンプ２２を作動して
チャンバー４内の空気を排出する予備真空工程を行なう。 When the start key 39 is turned on (ON), as shown in the process operation shown in FIG. 3, the pretreatment process is started, the energization of the drying heater 26 is de-energized, and the lid 7 is locked (not shown).
Is operated to lock the door, energize the vacuum pump 22 and open the fourth electromagnetic valve 21 to suck air in the chamber 4 from the discharge passage 20 and discharge it to the outside. For example, when 30 seconds have elapsed from the start of the discharge or when the pressure detected by the pressure sensor 25 reaches -20 kPa, for example, the first electromagnetic valve 14 is opened for a predetermined time (for example, 3 minutes after the start of operation), and the supply pipe 9 and the air Supply channel 1
1, after supplying the outside air into the chamber 4 and drying the inner surface of the chamber 4, the first electromagnetic valve 14 is closed and the second electromagnetic valve 15 is opened to inject water to a predetermined water level (below the heater cover 6). After the process, a preliminary vacuum process is performed in which the vacuum pump 22 is operated to discharge the air in the chamber 4 for a predetermined time (for example, 8 minutes and 30 seconds after the start of operation).

なお、上記予備真空工程の終了と同時に圧力センサー２５にてチャンバー４内の圧力を
計測し、検出圧力が所定圧力（例えば−５０ｋＰａ）以上の場合には、真空ポンプ２２の
劣化や排出流路２０等の配管詰まり等の異常が発生したと判断して運転を停止すると共に
、ブザー３３を作動して真空不足の発生を報知する。予備真空工程時に異常が発生した場
合には、これを検出して滅菌動作を停止することで、真空不足による滅菌不良を確実に防
止すると共に、ブザー３３により異常の発生を報知することで、異常発生を迅速に知らせ
る事が出来るものである。異常発生により運転を停止した場合には、電源スイッチ（図示
せず）をオフして電源コードをコンセントより抜いた後、異常個所を点検、又は修理を行
い、その後、上記の運転開始操作を行う。 Note that the pressure in the chamber 4 is measured by the pressure sensor 25 simultaneously with the end of the preliminary vacuum process, and when the detected pressure is a predetermined pressure (for example, −50 kPa) or more, the deterioration of the vacuum pump 22 and the discharge flow path 20 are detected. It is determined that an abnormality such as clogging of the pipe has occurred, and the operation is stopped, and the buzzer 33 is operated to notify the occurrence of a vacuum shortage. If an abnormality occurs during the preliminary vacuum process, this is detected and the sterilization operation is stopped, so that sterilization failure due to insufficient vacuum is reliably prevented, and the occurrence of the abnormality is notified by the buzzer 33. It is possible to notify the occurrence quickly. When operation is stopped due to an abnormality, the power switch (not shown) is turned off and the power cord is unplugged from the outlet. After that, the abnormal part is inspected or repaired, and then the above operation start operation is performed. .

一方、予備真空工程が正常に終了すると加熱工程を開始する。加熱工程の開始によって
、チャンバー４内の温度が所定温度（実施例では９９℃）に到達したことがステップＳ３
で確認され、コース選択部３１Ｃによって設定したコースへ移行する。移行した各コース
においては、図３に示すように、真空ポンプ２２への通電を停止して第４電磁弁２１を閉
じた後、滅菌ヒータ５に通電してチャンバー４内に注水した水を加熱して蒸気を発生させ
ると共に、第３電磁弁１８が開いてチャンバー４内の空気を排出流路１７より外部に排出
する加熱工程を行う。 On the other hand, when the preliminary vacuum process ends normally, the heating process is started. It is confirmed in step S3 that the temperature in the chamber 4 has reached a predetermined temperature (99 ° C. in the embodiment) by starting the heating process.
And the process proceeds to the course set by the course selection unit 31C. In each course that has been transferred, as shown in FIG. 3, after the energization to the vacuum pump 22 is stopped and the fourth electromagnetic valve 21 is closed, the sterilization heater 5 is energized to heat the water injected into the chamber 4. Then, while the steam is generated, the third electromagnetic valve 18 is opened and the heating process is performed in which the air in the chamber 4 is discharged to the outside through the discharge flow path 17.

このような滅菌ヒータ５の通電による加熱工程によって、温度センサー２３にて検出す
るチャンバー４内の温度が所定の加熱滅菌温度に到達したことがステップＳ４で確認され
ると共に、テストコースが選択されているか否かが確認される。テストコース以外が選択
されている場合は通常の滅菌コースであり、図２のフローチャートの「テストコース」以
外のフローへ進み、被滅菌物３の滅菌処理を行う滅菌工程を行う。滅菌工程では、予め設
定した滅菌温度と滅菌タイマーによる所定時間に亘って滅菌処理を行う。 It is confirmed in step S4 that the temperature in the chamber 4 detected by the temperature sensor 23 has reached a predetermined heat sterilization temperature by the heating process by energizing the sterilization heater 5, and the test course is selected. It is confirmed whether or not. When a course other than the test course is selected, the course is a normal sterilization course, and the process proceeds to a flow other than the “test course” in the flowchart of FIG. In the sterilization process, sterilization is performed for a predetermined time using a preset sterilization temperature and a sterilization timer.

また、ステップＳ４で後述のテストコースが選択されていることが確認された場合は、
３．５分間の滅菌工程を経て、後述の排気・排水工程を行ない、排気・排水処理によって
チャンバー４内が１０ｋＰａになったことがステップＳ６で確認され、且つテストコース
又は乾燥時間がゼロが確認されれば、蓋７のロック装置（図示せず）によるドアロックを
解除してテストコースを完了する。 If it is confirmed in step S4 that the test course described later is selected,
After a 3.5 minute sterilization process, the exhaust / drain process described below is performed, and it is confirmed in step S6 that the chamber 4 has reached 10 kPa by the exhaust / drain process, and the test course or drying time is confirmed to be zero. Then, the door lock by the lock device (not shown) of the lid 7 is released to complete the test course.

滅菌工程が終了すると、ステップＳ５においてコース選択部３１Ｃによって設定したコ
ースへ移行する。即ち、「包装１２１℃、包装１３４℃、重包装１３４℃のコース」では
、図３に示すように、第２電磁弁１５を開いて排水すると共に、第３電磁弁１８を開き、
乾燥ヒータ２６に適宜通電して排気処理を行う排気・排水工程となる。 When the sterilization process is completed, the process proceeds to the course set by the course selection unit 31C in step S5. That is, in the “course of packaging 121 ° C., packaging 134 ° C., heavy packaging 134 ° C.”, as shown in FIG. 3, the second electromagnetic valve 15 is opened and drained, and the third electromagnetic valve 18 is opened,
This is an exhaust / drain process in which the drying heater 26 is appropriately energized to perform exhaust processing.

このような排気・排水処理によって、チャンバー４内が１０ｋＰａになったことがステ
ップＳ６で確認され、且つテストコースが選択されているか、乾燥時間がゼロか、更にコ
ース選択部３１Ｃによって設定した「包装１２１℃、包装１３４℃、重包装１３４℃のコ
ース」かが確認され、テストコースか乾燥時間がゼロの場合は、蓋７のロック装置（図示
せず）によるドアロックを解除して滅菌処理動作を完了する。一方、「包装１２１℃、包
装１３４℃、重包装１３４℃のコース」の場合は、図３に示すように、乾燥タイマーによ
り第４電磁弁２１を開くと共に真空ポンプ２２を作動し、かつ第１電磁弁１４を適宜開い
て供給管９及び空気供給流路１１、排出流路２０を介してチャンバー４内に外気を供給し
て所定時間乾燥処理を行う。この時、供給管９よりチャンバー４内に供給された空気は、
滅菌ヒータ５の周囲を通ってこれに加熱されながら間隙８より被滅菌物３の周囲に流入し
、乾燥ヒータ２６によるチャンバー４の加熱と共に、被滅菌物３やチャンバー４の内面を
乾燥処理する乾燥工程を行なう。 It is confirmed in step S6 that the inside of the chamber 4 has reached 10 kPa by such exhaust / drainage treatment, and the test course is selected, the drying time is zero, and the “packaging” set by the course selection unit 31C is set. If the course is 121 ° C, packaging 134 ° C, and heavy packaging 134 ° C, and if the test course or drying time is zero, the door lock by the lock device (not shown) of the lid 7 is released and the sterilization operation is performed. To complete. On the other hand, in the case of “course of packaging 121 ° C., packaging 134 ° C., heavy packaging 134 ° C.”, as shown in FIG. 3, the fourth electromagnetic valve 21 is opened by the drying timer and the vacuum pump 22 is operated, and the first The electromagnetic valve 14 is appropriately opened to supply outside air into the chamber 4 through the supply pipe 9, the air supply flow path 11, and the discharge flow path 20, and a drying process is performed for a predetermined time. At this time, the air supplied from the supply pipe 9 into the chamber 4 is
While passing through the periphery of the sterilization heater 5 and being heated by this, it flows into the periphery of the object to be sterilized 3 through the gap 8, and with the heating of the chamber 4 by the drying heater 26, drying to dry the sterilized object 3 and the inner surface of the chamber 4. Perform the process.

この乾燥工程による乾燥処理が終了すると、第１電磁弁１４と第４電磁弁２１を閉じる
と共に真空ポンプ２２を停止し、蓋７のロック装置（図示せず）によるドアロックを解除
して、通常の滅菌コースを完了する。なお、図３においては、第１電磁弁１４が閉じた後
、再び開くようにしているが、これは、外気をチャンバー４内に取り入れる状態を保つよ
うにしているためであり、乾燥工程の終了にて、第１電磁弁１４を閉じる制御でもよい。 When the drying process by this drying process is completed, the first electromagnetic valve 14 and the fourth electromagnetic valve 21 are closed and the vacuum pump 22 is stopped, the door lock by the lock device (not shown) of the lid 7 is released, Complete the sterilization course. In FIG. 3, the first electromagnetic valve 14 is closed and then opened again. This is because the state in which the outside air is taken into the chamber 4 is maintained, and the drying process ends. In this case, the first electromagnetic valve 14 may be closed.


上記において、本発明では液体滅菌コースを備えており、コース選択部３１Ｃによって
液体１１５℃のコースが設定されている場合は、ステップＳ５において、液体滅菌コース
へ移行し、図２のフローチャートに示すように、各冷却ステップを経た後、蓋７のロック
装置（図示せず）によるドアロックを解除して、液体滅菌コースを完了する。
In the above, in the present invention, the liquid sterilization course is provided, and when the course of the liquid 115 ° C. is set by the course selection unit 31C, the process proceeds to the liquid sterilization course in step S5, as shown in the flowchart of FIG. After passing through each cooling step, the door lock by the lock device (not shown) of the lid 7 is released to complete the liquid sterilization course.

上記では、滅菌操作に際しては、スタートキー３９をオン（ＯＮ）操作する前に、準備
ボタン４５のオン（ＯＮ）操作によって、乾燥ヒータ２６へ通電してチャンバー４の壁を
加熱する予備加熱モードとした。しかし、一度このような滅菌処理を行った後、引き続い
て滅菌処理を行う場合は、前回の滅菌処理によってチャンバー４の壁がある程度暖められ
ているため、引き続いて行う滅菌処理の前に、チャンバー４の壁を加熱する予備加熱モー
ドとする必要がない。このため、引き続いて行う滅菌処理は、上記の予備加熱モードを省
略したステップからスタートする。 In the above, in the sterilization operation, before the start key 39 is turned on, the preparatory heating mode in which the drying heater 26 is energized and the wall of the chamber 4 is heated by turning the preparation button 45 on (ON). did. However, when the sterilization process is performed once after performing such a sterilization process, the wall of the chamber 4 has been warmed to some extent by the previous sterilization process. There is no need to use a preheating mode for heating the walls. For this reason, the subsequent sterilization process starts from a step in which the preheating mode is omitted.

なお、準備ボタン４５による予備加熱モードを設けない場合は、スタンバイの状態から
スタートキー３９のオン（ＯＮ）操作にてスタートし、図３に濃色で示すように、給気バ
ルブである第１電磁弁１４と排気バルブである第３電磁弁１８は、スタンバイ状態で開い
ている（第３電磁弁１８の開状態を濃色で示す）。この状態で、スタートキー３９のオン
（ＯＮ）操作により前処理工程が開始し、この前処理工程では図３に濃色で示すように乾
燥ヒータ２６への通電が行なわれ、上記のように、ドアロック、注水、予備真空工程を行
なう。このようにして前処理工程が終了した後は、上記同様に加熱、滅菌、排気・排水、
乾燥の各工程を経て通常の滅菌コースを終了する。 In the case where the preheating mode by the preparation button 45 is not provided, the start key 39 is started from the standby state by the ON operation of the start key 39, and as shown by the dark color in FIG. The electromagnetic valve 14 and the third electromagnetic valve 18 that is an exhaust valve are open in a standby state (the open state of the third electromagnetic valve 18 is indicated by a dark color). In this state, the pre-processing step is started by the ON operation of the start key 39, and in this pre-processing step, the drying heater 26 is energized as shown in dark color in FIG. Perform door locks, water injection, and preliminary vacuum processes. After the pretreatment step is completed in this way, heating, sterilization, exhaust / drainage,
The normal sterilization course is completed through each step of drying.

本発明では、高圧蒸気滅菌器ＭＫが正常動作をするか否かを確認するためのテストコー
スを備えている。このテストコースは、制御手段２７に組み込まれたテストプログラムに
よってマイクロコンピュータが動作する構成であり、テストキー４２のオン（ＯＮ）操作
によりテストスイッチが作動して、テストプログラムに従って制御手段２７が所定のテス
ト工程を実行する。 In the present invention, a test course for confirming whether the high-pressure steam sterilizer MK operates normally is provided. This test course has a configuration in which the microcomputer is operated by a test program incorporated in the control means 27. When the test key 42 is turned on (ON), the test switch is activated, and the control means 27 is controlled according to the test program. Perform the test process.

高圧蒸気滅菌器ＭＫを通常の滅菌コースで運転するか、テストコースで運転するかは、
テストキー４２をオン（ＯＮ）操作するか否かで決まる。テストコースで運転する場合は
、上記のように電源スイッチ（図示せず）をオン（ＯＮ）操作してスタンバイ状態とし、
チャンバー４内に被滅菌物３をセットし、蓋７を閉じた後、スタートキー３９をオン（Ｏ
Ｎ）操作する前に、テストキー４２をオン（ＯＮ）操作する（押す）。 Whether the high-pressure steam sterilizer MK operates on the normal sterilization course or the test course,
This is determined by whether or not the test key 42 is turned on. When driving on the test course, the power switch (not shown) is turned on (ON) as described above to enter the standby state.
The object to be sterilized 3 is set in the chamber 4, the lid 7 is closed, and then the start key 39 is turned on (O
N) Before the operation, the test key 42 is turned on (pressed).

これによって、上記のようにステップＳ１、Ｓ２、及び前処理工程を経て、ステップＳ
３でテストコースの選択状態が確認されることにより、所定の加熱工程を行なう。この加
熱工程は、図２のフローチャート及び図３の加熱工程で示すように、真空ポンプ２２への
通電を停止して第４電磁弁２１を閉じた後、滅菌ヒータ５に通電してチャンバー４内に注
水した水を加熱して蒸気を発生させ１１５℃まで加熱し、第３電磁弁１８が開いてチャン
バー４内の空気を排出流路１７より外部に排出し、−７５ｋＰａまで排気する。 As a result, after steps S1 and S2 and the pretreatment step as described above, step S1 is performed.
When the selected state of the test course is confirmed in step 3, a predetermined heating process is performed. In this heating process, as shown in the flowchart of FIG. 2 and the heating process of FIG. 3, the energization of the vacuum pump 22 is stopped and the fourth electromagnetic valve 21 is closed, and then the sterilization heater 5 is energized. The water injected into the water is heated to generate steam and heated to 115 ° C., the third electromagnetic valve 18 is opened, the air in the chamber 4 is discharged to the outside from the discharge flow path 17 and exhausted to −75 kPa.

このような滅菌ヒータ５の通電による加熱工程によって、温度センサー２３にて検出す
るチャンバー４内の温度が所定の加熱滅菌温度に到達したことがステップＳ４で確認され
ると共に、テストコースが選択されていることが確認される。これによって、図２のフロ
ーチャートの「テストコース」のフローへ進み、３．５分間の滅菌工程を経て、前述のよ
うに通常の滅菌コース同様の排水排気工程を行なう。この排水排気処理によってチャンバ
ー４内が１０ｋＰａになったことがステップＳ６で確認され、且つテストコース又は乾燥
時間のゼロが確認されれば、蓋７のロック装置（図示せず）によるドアロックを解除して
テストコースを完了する。 It is confirmed in step S4 that the temperature in the chamber 4 detected by the temperature sensor 23 has reached a predetermined heat sterilization temperature by the heating process by energizing the sterilization heater 5, and the test course is selected. It is confirmed that Accordingly, the process proceeds to the “test course” flow in the flowchart of FIG. 2, and after a sterilization process for 3.5 minutes, the drainage exhaust process similar to the normal sterilization course is performed as described above. If it is confirmed in step S6 that the inside of the chamber 4 has become 10 kPa by this drainage / exhaust treatment, and if the test course or the drying time is confirmed to be zero, the door lock by the lock device (not shown) of the lid 7 is released. And complete the test course.

上記のように、本発明では、高圧蒸気滅菌器ＭＫの正常動作を確認するテストコースと
、このテストコースを選択するテストキー４２のオン（ＯＮ）操作によるテストスイッチ
を備え、このスイッチによってテストコースが選択された状態において、スタートキーの
オン（ＯＮ）操作によってスタートスイッチが作動し、滅菌モードが開始し、前処理工程
、加熱工程、及び排気・排水工程後に、乾燥工程を行なわない状態で終了する。 As described above, in the present invention, the test course for confirming the normal operation of the high pressure steam sterilizer MK and the test switch by the ON operation of the test key 42 for selecting the test course are provided. In the state where is selected, the start switch is activated by the ON operation of the start key, the sterilization mode is started, and the drying process is not performed after the pretreatment process, the heating process, and the exhaust / drain process. To do.

このため、テストコースを選択した状態で通常運転モードを開始し、通常運転モードで
行なう滅菌温度に到達できるか否かの判定をするため、実際の滅菌に適する状態であるか
否かの判定を適格に行なえるものとなる。また、通常運転モードで行なわれる乾燥工程は
、テストの評価に関係しないため、このテストコースでは行なわずに終了するようにして
おり、テスト工程時間の短縮化を図ることができるものである。 Therefore, the normal operation mode is started with the test course selected, and it is determined whether or not the sterilization temperature can be reached in the normal operation mode. It can be done properly. Further, since the drying process performed in the normal operation mode is not related to the evaluation of the test, the drying process is not performed in this test course, and the test process time can be shortened.

なお、加熱工程、滅菌工程、排気工程、乾燥工程等における温度や時間等はこれらに限
定されるものではなく、チャンバー４の容積や被滅菌物の種類に応じて適宜設定するもの
である。 Note that the temperature, time, and the like in the heating process, sterilization process, exhaust process, drying process, and the like are not limited to these, and are set as appropriate according to the volume of the chamber 4 and the type of object to be sterilized.

本発明は上記実施例に示した構成に限定されず、横型チャンバー方式でも縦型チャンバ
ー方式のいずれでもよく、種々の形態の高圧蒸気滅菌器に適用できるものであり、本発明
の技術範囲において種々の形態を包含するものである。 The present invention is not limited to the configuration shown in the above embodiment, and may be either a horizontal chamber system or a vertical chamber system, and can be applied to various forms of high-pressure steam sterilizers. The form is included.

本発明に係る高圧蒸気滅菌器の構造図である。1 is a structural diagram of a high-pressure steam sterilizer according to the present invention. 本発明に係る高圧蒸気滅菌器の動作フローチャートである。It is an operation | movement flowchart of the high pressure steam sterilizer which concerns on this invention. 本発明に係る高圧蒸気滅菌器の工程動作図である。It is process operation | movement figure of the high pressure steam sterilizer which concerns on this invention. 本発明に係る高圧蒸気滅菌器の操作パネルの正面図である。It is a front view of the operation panel of the high pressure steam sterilizer concerning the present invention. 本発明に係る高圧蒸気滅菌器の制御ブロック図である。It is a control block diagram of the high pressure steam sterilizer concerning the present invention.

符号の説明Explanation of symbols

１・・・・・滅菌器本体の外ケース
２・・・・・チャンバーの前面開口
３・・・・・被滅菌物
４・・・・・チャンバー
５・・・・・滅菌ヒータ
１３・・・・注水流路
１７・・・・排気流路
２０・・・・排出流路
２２・・・・真空ポンプ
２３・・・・チャンバー内の温度を検出する温度センサー
２６・・・・乾燥ヒータ
２７・・・・制御手段
３９・・・・スタートキー
４２・・・・テストキー
４５・・・・準備ボタン（準備キー）
ＭＫ・・・・高圧蒸気滅菌器 DESCRIPTION OF SYMBOLS 1 ... Outer case of sterilizer body 2 ... Front opening of chamber 3 ... Object to be sterilized 4 ... Chamber 5 ... Sterilization heater 13 ...・ Water injection channel 17 ・ ・ ・ ・ Exhaust channel 20 ・ ・ ・ ・ Drain channel 22 ・ ・ ・ ・ Vacuum pump 23 ・ ・ ・ ・ Temperature sensor 26 for detecting the temperature in the chamber 26 ・ ・ ・ ・ Drying heater 27 ・... Control means 39 ... Start key 42 ... Test key 45 ... Preparation button (preparation key)
MK ... ・ High-pressure steam sterilizer

Claims (1)

収納された被滅菌物を高圧蒸気下で滅菌するチャンバーと前記チャンバー内を真空引き
する真空ポンプを備え、スタートスイッチのオン（ＯＮ）によって滅菌モードの運転を開
始し、前記チャンバー内に供給された加熱用水を真空下で加熱蒸発させ前記チャンバー内
の被滅菌物を高温高圧蒸気下で滅菌した後、前記チャンバー内から排気・排水し、前記チ
ャンバー内を乾燥する各工程を行なう高圧蒸気滅菌器において、前記高圧蒸気滅菌器の正
常動作を確認するテストコースと、このテストコースを選択するテストスイッチを備え、
前記テストコースが選択された状態において、前記滅菌モードは、前記スタートスイッチ
のオン（ＯＮ）によって開始し、前記乾燥工程を行なわない状態で前記排気・排水工程を
経て終了することを特徴とする高圧蒸気滅菌器。 The chamber is equipped with a chamber for sterilizing the object to be sterilized under high-pressure steam and a vacuum pump for evacuating the chamber. The start of the sterilization mode is started by turning on the start switch, and the sterilization mode is supplied to the chamber. In a high-pressure steam sterilizer that performs each step of heating and evaporating heating water under vacuum to sterilize an object to be sterilized in the chamber under high-temperature high-pressure steam, then exhausting and draining the chamber from the chamber, and drying the chamber A test course for confirming the normal operation of the autoclave, and a test switch for selecting the test course,
In the state in which the test course is selected, the sterilization mode is started by turning on the start switch (ON), and is ended through the exhaust / drain process without performing the drying process. Steam sterilizer.
JP2008137352A 2008-05-27 2008-05-27 High pressure steam sterilizer Expired - Fee Related JP5100506B2 (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101423022B1 (en) 2014-01-28 2014-07-28 유형열 Structure of chamber for high-pressure steam sterilization apparatus for medical
KR101423020B1 (en) 2014-01-28 2014-08-13 유형열 High-pressure steam sterilization apparatus for medical

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10127736A (en) * 1996-10-29 1998-05-19 Miura Co Ltd Disinfection device
JP2000014749A (en) * 1998-06-30 2000-01-18 Miura Co Ltd Method of operating steam sterilizer
JP2002224198A (en) * 2001-02-05 2002-08-13 Chiyoda Manufacturing Co Ltd Steam sterilizer
JP2005160771A (en) * 2003-12-03 2005-06-23 Sanyo Electric Co Ltd High pressure steam sterilizer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10127736A (en) * 1996-10-29 1998-05-19 Miura Co Ltd Disinfection device
JP2000014749A (en) * 1998-06-30 2000-01-18 Miura Co Ltd Method of operating steam sterilizer
JP2002224198A (en) * 2001-02-05 2002-08-13 Chiyoda Manufacturing Co Ltd Steam sterilizer
JP2005160771A (en) * 2003-12-03 2005-06-23 Sanyo Electric Co Ltd High pressure steam sterilizer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101423022B1 (en) 2014-01-28 2014-07-28 유형열 Structure of chamber for high-pressure steam sterilization apparatus for medical
KR101423020B1 (en) 2014-01-28 2014-08-13 유형열 High-pressure steam sterilization apparatus for medical

Also Published As

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