JPH08229106A - Sterilizing device - Google Patents
Sterilizing deviceInfo
- Publication number
- JPH08229106A JPH08229106A JP7068621A JP6862195A JPH08229106A JP H08229106 A JPH08229106 A JP H08229106A JP 7068621 A JP7068621 A JP 7068621A JP 6862195 A JP6862195 A JP 6862195A JP H08229106 A JPH08229106 A JP H08229106A
- Authority
- JP
- Japan
- Prior art keywords
- sterilization
- sterilization tank
- sterilizer
- door
- room
- 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
Links
Landscapes
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、被滅菌物からの再感
染を防止するバイオ・ハザード対応の滅菌装置に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bio-hazard-compatible sterilizer which prevents reinfection from a sterilized object.
【０００２】[0002]
【従来の技術】従来より、医療用器具や医薬品等の滅菌
処理には、蒸気や殺菌ガスを用いた滅菌装置を用いてい
る。近年においては、滅菌装置からの各種の菌や汚染物
質が排出されるのを防止するために、滅菌装置自体にも
種々のバイオ・ハザード対策が講じられている。例え
ば、滅菌処理中には、蒸気や殺菌ガスを充満させるため
に滅菌槽内部の空気を排出するが、この際に汚染された
空気が大気中に放出されないように除菌用のフィルタを
備えたものがある。また、蒸気を用いた滅菌装置の場
合、ドレン配管についてもこの様な対策を施してあり、
ドレン回収装置や除菌用のフィルタや熱による殺菌機構
を備えたものがある。ところで、Ｐ３，Ｐ４等のバイオ
ハザード施設では、実験室等の非清浄空間側で生じた被
滅菌物を滅菌してから、一般の清浄空間側に取り出せる
ようにした両扉式の滅菌装置が多用されている。前記の
ような非清浄空間側の室内は、汚染空気が室外に出ない
ように通常負圧を保つように設計され運用されており、
更に、この室内には、ドラフトチャンバ等の設備も設置
され、作業者が汚染物に汚染されないように考慮されて
いる。しかし、滅菌装置内に滅菌物を出し入れする際に
は、滅菌装置内から汚染物質が空気と共に室内に流出
し、実験者が汚染される可能性があり、この点について
は今まで考慮されていなかった。2. Description of the Related Art Conventionally, a sterilizer using steam or a sterilizing gas has been used for sterilizing medical instruments, medicines and the like. In recent years, in order to prevent various bacteria and pollutants from being discharged from the sterilizer, various biohazard measures have been taken in the sterilizer itself. For example, during the sterilization process, the air inside the sterilization tank is discharged to fill steam and sterilizing gas, but a filter for sterilization was provided to prevent the polluted air from being released into the atmosphere. There is something. Also, in the case of a sterilizer using steam, such measures have been taken for the drain piping,
Some have a drain recovery device, a filter for disinfection, and a sterilization mechanism by heat. By the way, in biohazard facilities such as P3 and P4, a double-door type sterilizer is often used that can sterilize an object to be sterilized generated in an unclean space such as a laboratory and then take it out to a general clean space. Has been done. The room on the non-clean space side as described above is designed and operated so as to normally keep a negative pressure so that contaminated air does not go out of the room,
Furthermore, equipment such as a draft chamber is also installed in this room to prevent workers from being contaminated by contaminants. However, when the sterilizer is put in or taken out of the sterilizer, pollutants may flow out into the room from the sterilizer together with air, and the experimenter may be contaminated.This point has not been considered until now. It was
【０００３】[0003]
【発明が解決しようとする課題】従って、この発明が解
決しようとする課題は、滅菌処理中のバイオ・ハザード
対策のみならず、滅菌装置内に滅菌物を出し入れする際
等に滅菌装置内の汚染空気が室内に流出し、作業者が汚
染されるのを防止した滅菌装置を提供することである。Therefore, the problem to be solved by the present invention is not only to prevent biohazard during sterilization but also to contaminate the inside of the sterilizer when a sterilized product is taken in and out. It is an object of the present invention to provide a sterilizer that prevents air from flowing out into a room and polluting workers.
【０００４】[0004]
【課題を解決するための手段】この発明は、上述の課題
に鑑みてなされたもので、少なくとも１つの側面に扉を
備えた滅菌装置であって、被滅菌物を収容する滅菌槽
と、この滅菌槽から系外に向かって延びる吸引ライン
と、前記扉の開放時に滅菌槽内を減圧する負圧吸引手段
とを備えてなることを第１の特徴とし、更に、前記吸引
ラインの途中に除菌フィルタを備えたことを第２の特徴
とする滅菌装置である。The present invention has been made in view of the above-mentioned problems, and is a sterilizing apparatus having a door on at least one side surface, and a sterilizing tank for containing an object to be sterilized. The first feature is that it comprises a suction line extending from the sterilization tank toward the outside of the system, and a negative pressure suction means for depressurizing the inside of the sterilization tank when the door is opened. A second aspect of the sterilization apparatus is that it is provided with a bacterium filter.
【０００５】[0005]
【作用】この発明に係る滅菌装置によれば、滅菌処理の
開始前或は終了後、滅菌槽(1)の扉を開放する際には、
負圧吸引手段(11)を起動して滅菌槽(1) 内の空気を吸引
ライン(10)を介して排出し、滅菌槽(1) 内を部屋よりも
負圧に保つことにより、滅菌槽(1) 内の汚染空気が部屋
内に流入するのを防止する。更に、前記吸引ライン(10)
の途中に除菌フィルタ(12)を設けることにより、吸引ラ
イン(10)からの汚染を防止する。According to the sterilizer of the present invention, when the door of the sterilization tank (1) is opened before or after the sterilization process is started,
By activating the negative pressure suction means (11) and discharging the air in the sterilization tank (1) through the suction line (10), the sterilization tank (1) is kept at a negative pressure than in the room. (1) Prevent the contaminated air inside from flowing into the room. Furthermore, the suction line (10)
By providing a sterilization filter (12) in the middle of the process, contamination from the suction line (10) is prevented.
【０００６】[0006]
【実施例】以下、この発明の具体的実施例を図面に基づ
いて詳細に説明する。図１はこの発明に係る滅菌装置の
一実施例を示す図面で、周知の両扉式滅菌装置に適用し
たものである。図１に示す実施例において、滅菌装置
は、周知のように被滅菌物を収容し、滅菌処理を行うた
めの滅菌槽(1) を備えている。この滅菌装置は、前述し
たように両扉式滅菌装置であって、対向する位置に扉
(2),(3) を配置してあり、各扉(2),(3) は、２つの隣接
する部屋(A),(B) において開閉可能に位置させてある。
そして、被滅菌物は、この扉(2),(3) から滅菌槽(1) 内
に出し入れし、これを閉じた後は、蒸気を漏らすこと無
く密閉される。前記の２つの部屋(A),(B) は、例えば、
一般室と手術室，通常の部屋と生化学実験室等であっ
て、以下の説明では、清浄空間側を部屋(A) ，非清浄空
間側を部屋(B) とする。尚、前記非清浄空間側の部屋
(B) は、前述のように汚染空気が室外に出ないように通
常負圧を保つように設計され運用されており、ドラフト
チャンバ等の設備により、作業者が汚染物に汚染されな
いように考慮されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a view showing an embodiment of a sterilizer according to the present invention, which is applied to a well-known double door type sterilizer. In the embodiment shown in FIG. 1, the sterilizer is equipped with a sterilization tank (1) for accommodating an object to be sterilized and performing a sterilization process, as is well known. This sterilizer is a double-door type sterilizer as described above, and the door is installed at the opposite position.
(2) and (3) are arranged, and each door (2) and (3) is located so as to be able to open and close in two adjacent rooms (A) and (B).
The object to be sterilized is put in and out of the sterilization tank (1) through the doors (2) and (3), and after closing it, it is hermetically sealed without leaking steam. The above two rooms (A) and (B) are, for example,
A general room and an operating room, an ordinary room and a biochemistry laboratory, etc. In the following description, the clean space side is the room (A) and the non-clean space side is the room (B). The room on the non-clean space side
As described above, (B) is designed and operated so that the contaminated air is normally kept at a negative pressure so that it does not go out of the room, and consideration is given to prevent workers from being contaminated by contaminants by the equipment such as the draft chamber. Has been done.
【０００７】この滅菌槽(1) には、蒸気を供給するため
の蒸気ライン(4) 、内部に導入した蒸気やそのドレン等
を排出するための排出ライン(5) 、並びに、この排出の
際に内部の蒸気等と置換させるための空気の導入ライン
(6) とを接続してある。尚、前記の空気導入ライン(6)
には、滅菌槽(1) 内に導入する空気を無菌状態とするた
めの除菌フィルタ(7) を接続してある。前記排出ライン
(5) には、上流側からドレンタンク(8) ，排出ポンプ
(9) を接続してある。このドレンタンク(8) は、滅菌処
理中等に排出されるドレン等を一次的に貯溜し、加熱に
よってドレンを殺菌するためのものである。一方、排出
ポンプ(9) は、滅菌処理を開始する際に滅菌槽(1) 内の
空気を排出し、また、滅菌処理時に生成したドレン等を
速やかにドレンタンク(8) 内に吸引するためのもので、
液封式の真空ポンプやジェットポンプ等が用いられる。
更に、この滅菌槽(1) には、吸引ライン(10)を接続して
あり、この吸引ライン(10)には、負圧吸引手段(11)を備
えている。この負圧吸引手段(11)は、ブロアや真空ポン
プ等であって、前記扉(2),(3) の開放時には少なくとも
作動状態にあるように構成されている。例えば、被滅菌
物を滅菌槽(1) 内に収納する際、すなわち、前記扉(2),
(3) の開放状態を検出した時点で負圧吸引手段(11)が作
動状態となるように滅菌装置自体の制御に組み込むか、
あるいは、被滅菌物を滅菌槽(1)内に収納する際に手動
の操作ボタン等によって負圧吸引手段(11)が起動するよ
うに構成する。更に、前記吸引ライン(10)には、負圧吸
引手段(11)の下流側に、除菌フィルタ(12)を備えてい
る。この除菌フィルタ(12)は、滅菌槽(1) 内の空気を大
気中に放出する際に汚染物質が排出されないように捕捉
する。尚、前記除菌フィルタ(12)は、負圧吸引手段(11)
の下流側に設けてもよいが、この場合は負圧吸引手段(1
1)自体に雑菌の洩れや繁殖を防ぐための対策を設けてお
く。In this sterilization tank (1), a steam line (4) for supplying steam, a discharge line (5) for discharging the steam introduced therein, its drain, etc. Introducing line to replace air with steam inside
(6) is connected to. Incidentally, the air introduction line (6)
A sterilization filter (7) for making the air introduced into the sterilization tank (1) aseptic is connected to this. The discharge line
In (5), the drain tank (8) and the discharge pump are installed from the upstream side.
(9) is connected. The drain tank (8) is for temporarily storing drain or the like discharged during sterilization processing and for sterilizing the drain by heating. On the other hand, the discharge pump (9) discharges the air in the sterilization tank (1) at the start of the sterilization process and also quickly sucks the drain generated during the sterilization process into the drain tank (8). Of
A liquid ring type vacuum pump, a jet pump, or the like is used.
Further, a suction line (10) is connected to the sterilization tank (1), and the suction line (10) is provided with negative pressure suction means (11). The negative pressure suction means (11) is a blower, a vacuum pump, or the like, and is configured to be at least in an operating state when the doors (2) and (3) are opened. For example, when storing the object to be sterilized in the sterilization tank (1), that is, the door (2),
Incorporate into the control of the sterilizer itself so that the negative pressure suction means (11) is activated when the open state of (3) is detected, or
Alternatively, the negative pressure suction means (11) is activated by a manual operation button or the like when the object to be sterilized is stored in the sterilization tank (1). Further, the suction line (10) is provided with a sterilization filter (12) on the downstream side of the negative pressure suction means (11). The sterilization filter (12) captures the air in the sterilization tank (1) so that pollutants are not discharged when the air is released into the atmosphere. Incidentally, the sterilization filter (12), negative pressure suction means (11)
May be provided on the downstream side of the negative pressure suction means (1
1) Take measures to prevent the leakage and propagation of miscellaneous bacteria.
【０００８】このように構成された滅菌装置において、
滅菌作業は以下のように行う。先ず、滅菌槽(1) 内に被
滅菌物を収容するに際しては、前記負圧吸引手段(11)を
作動させて滅菌槽(1) 内の空気を吸引ライン(10)から排
出することによって、滅菌槽(1) 内を部屋(B) よりも負
圧下に置いた状態で扉(3) を開放する。すると、滅菌槽
(1) 内は部屋(B) よりも負圧下にあるため、滅菌槽(1)
内の空気が部屋(A) ，あるいは部屋(B) に向けて流出す
ることがない。従って、従来のように、被滅菌物に付着
した汚染物質が、滅菌槽(1) から流出する空気とともに
部屋に流入し、作業者にふりかかって作業者が汚染され
るのが防止される。このようにして滅菌槽(1) 内に被滅
菌物を収容した後、扉(2) あるいは(3) を閉鎖し密閉す
る。その後、負圧吸引手段(11)を停止させた後、蒸気ラ
イン(4) ，空気導入ライン(6) を閉鎖し、排出ライン
(5) を開放した状態で、排出ポンプ(9) によって、前記
滅菌槽(1) 内の空気を吸引することによって滅菌槽(1)
内を減圧する。次に、滅菌槽(1) 内の圧力が所定圧まで
低下した状態で、排出ライン(5) を閉じる一方前記蒸気
ライン(4) を開放し、蒸気ライン(4) から滅菌槽(1) 内
に蒸気を供給する。そして、再度蒸気ライン(4) を閉鎖
し、排出ライン(5) を開放し、滅菌槽(1) 内を吸引する
ことにより蒸気と共に残留する空気を排出する。この操
作を数回繰り返すことによって、滅菌槽(1) 内を蒸気で
満たす。そして、この状態を所定時間継続することによ
って滅菌処理を行う。この滅菌処理の際に、前記排出ラ
イン(3) 内で凝縮したドレンは、ドレンタンク(8) 内に
吸引され、前記排出ポンプ(9) によって、排出ライン
(3) 終端から系外に排出される。In the sterilizer configured as above,
Sterilization work is performed as follows. First, when accommodating an object to be sterilized in the sterilization tank (1), the negative pressure suction means (11) is operated to discharge the air in the sterilization tank (1) from the suction line (10). The door (3) is opened while the sterilization tank (1) is kept under a negative pressure than the room (B). Then, the sterilization tank
Since the inside of (1) is under negative pressure than the room (B), the sterilization tank (1)
The air inside does not flow out toward room (A) or room (B). Therefore, it is possible to prevent the pollutant attached to the object to be sterilized from flowing into the room together with the air flowing out of the sterilization tank (1) and splashing on the worker and contaminating the worker as in the conventional case. After containing the sterilized object in the sterilization tank (1) in this way, the door (2) or (3) is closed and sealed. After that, after stopping the negative pressure suction means (11), the steam line (4) and the air introduction line (6) are closed, and the discharge line
With the (5) open, the sterilization tank (1) by sucking the air in the sterilization tank (1) with the discharge pump (9).
Decompress the inside. Next, while the pressure inside the sterilization tank (1) has dropped to the prescribed pressure, the discharge line (5) is closed while the steam line (4) is opened, and the inside of the sterilization tank (1) is opened from the steam line (4). Supply steam to. Then, the steam line (4) is closed again, the discharge line (5) is opened, and the inside of the sterilization tank (1) is sucked to discharge the residual air together with the steam. The sterilization tank (1) is filled with steam by repeating this operation several times. Then, the sterilization process is performed by continuing this state for a predetermined time. During this sterilization process, the drain condensed in the discharge line (3) is sucked into the drain tank (8) and is discharged by the discharge pump (9).
(3) It is discharged from the end to the outside of the system.
【０００９】滅菌処理が終了すれば、蒸気ライン(4) を
閉鎖して、滅菌槽(1) 内へ蒸気の供給を中止すると共
に、空気導入ライン(6) を開放することによって、滅菌
槽(1)内の蒸気を空気によって置換する。この際には、
前記滅菌槽(1) 内の蒸気は、前記排出ポンプ(9) によっ
てドレンタンク(8) を介して吸引され、排出ライン(3)
から系外に排出される。以上のようにして、滅菌槽(1)
内を大気圧に戻した後、扉(2),(3) を開放し、滅菌槽
(1) 内から滅菌処理後の被滅菌物を取り出す。尚、この
滅菌処理後の被滅菌物を取出すに際しては、前記負圧吸
引手段(11)を作動させて滅菌槽(1) 内を負圧下に置いた
状態で扉(2) ，或は扉(3) を開放することにより、扉を
開ける際に、内部の残留蒸気等が作業者に向けて噴出す
る等といった事故も効果的に防止できる。When the sterilization process is completed, the steam line (4) is closed, the supply of steam into the sterilization tank (1) is stopped, and the air introduction line (6) is opened, so that the sterilization tank ( Replace the steam in 1) with air. In this case,
The steam in the sterilization tank (1) is sucked through the drain tank (8) by the discharge pump (9), and the discharge line (3)
Is discharged from the system. As described above, the sterilization tank (1)
After returning the inside pressure to atmospheric pressure, open the doors (2), (3) and sterilize the tank.
(1) Remove the sterilized object from the inside. When the object to be sterilized after the sterilization treatment is taken out, the negative pressure suction means (11) is operated to keep the inside of the sterilization tank (1) under a negative pressure, and the door (2) or the door ( By opening 3), it is possible to effectively prevent accidents such as residual steam inside when it is opened.
【００１０】ここで、前記図１に示す実施例において
は、吸引ライン(10)とドレン等の排出ライン(5) を独立
して別個に設けたものとしたが、この吸引ライン(10)と
排出ライン(5) とは供用させ、大気に開放させるか排水
溝に開口させるかを適宜の切り換え弁によって選択する
ようにした構成であってもよい。Here, in the embodiment shown in FIG. 1, the suction line (10) and the drain line (5) for drain etc. are independently provided, but this suction line (10) The discharge line (5) may be used together, and a structure may be adopted in which whether to open to the atmosphere or to open to the drain is selected by an appropriate switching valve.
【００１１】尚、以上の実施例においては、この発明を
両扉式滅菌装置に適用した実施例について説明したが、
この発明においては、一箇所に扉のある一般的な蒸気滅
菌装置にも適用できる。更に、滅菌装置は、滅菌槽(1)
の外周に蒸気ジャケットを設けた一般的な蒸気滅菌装置
としているが、この発明では、酸化エチレンガス等の殺
菌ガスを用いたガス滅菌装置や、単なる密閉式の圧力容
器を利用したものにおいても同様に適用できるのは云う
までもない。In the above embodiment, the embodiment in which the present invention is applied to the double door type sterilizer has been described.
The present invention can be applied to a general steam sterilizer having a door at one place. Furthermore, the sterilizer is a sterilization tank (1).
Although it is a general steam sterilizer equipped with a steam jacket on the outer periphery of this, in the present invention, the same applies to a gas sterilizer using a sterilizing gas such as ethylene oxide gas, or a mere hermetic pressure vessel. It goes without saying that it can be applied to.
【００１２】[0012]
【発明の効果】この発明に係る滅菌装置によれば、扉を
開け滅菌槽に滅菌物を出し入れする際に、負圧吸引手段
により滅菌槽内を負圧下に保持した状態するようにした
ので、この滅菌槽からの汚染空気が室内に流入するのを
防止することができるため、感染事故を防止することが
できる。更に、扉を開ける際に、内部の残留蒸気等が作
業者に向けて噴出する等といった事故も防止できる。According to the sterilizer according to the present invention, when the door is opened and the sterilized product is taken in and out of the sterilization tank, the inside of the sterilization tank is kept under negative pressure by the negative pressure suction means. Since it is possible to prevent the contaminated air from the sterilization tank from flowing into the room, it is possible to prevent an infection accident. Further, when the door is opened, it is possible to prevent an accident such as residual steam inside the container ejecting toward the worker.
【図１】この発明に係る滅菌装置の一実施例を説明する
ための図面である。FIG. 1 is a drawing for explaining one embodiment of a sterilization apparatus according to the present invention.
(1) 滅菌槽 (2) 扉 (3) 扉 (10) 吸引ライン (11) 負圧吸引手段 (12) 除菌フィルタ (A) 部屋 (B) 部屋 (1) Sterilization tank (2) Door (3) Door (10) Suction line (11) Negative pressure suction means (12) Sterilization filter (A) Room (B) Room
Claims (2)
装置であって、被滅菌物を収容する滅菌槽(1) と、滅菌
槽(1) から系外に向かって延びる吸引ライン(10)と、前
記扉の開放時に滅菌槽(1) 内を減圧する負圧吸引手段(1
1)とを備えてなることを特徴とする滅菌装置。1. A sterilizer having a door on at least one side surface, which comprises a sterilization tank (1) for containing an object to be sterilized, and a suction line (10) extending from the sterilization tank (1) toward the outside of the system. And negative pressure suction means (1) for depressurizing the sterilization tank (1) when the door is opened.
1) A sterilizer comprising:
タ(12)を備えたことを特徴とする請求項１記載の滅菌装
置。2. The sterilizer according to claim 1, wherein a sterilizing filter (12) is provided in the middle of the suction line (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7068621A JPH08229106A (en) | 1995-03-01 | 1995-03-01 | Sterilizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7068621A JPH08229106A (en) | 1995-03-01 | 1995-03-01 | Sterilizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08229106A true JPH08229106A (en) | 1996-09-10 |
Family
ID=13379019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7068621A Pending JPH08229106A (en) | 1995-03-01 | 1995-03-01 | Sterilizing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08229106A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001149447A (en) * | 1999-11-26 | 2001-06-05 | Cosmo Project Kk | Method for sterilizing infectious waste |
| JP2004195067A (en) * | 2002-12-20 | 2004-07-15 | Nec Ameniplantex Ltd | Safety control equipment in contaminant treatment area |
| JP2013220131A (en) * | 2012-04-13 | 2013-10-28 | Green:Kk | Sterilization device and method for sterilization |
| JP2014119119A (en) * | 2012-12-13 | 2014-06-30 | Miura Co Ltd | Double door type vacuum cooler |
-
1995
- 1995-03-01 JP JP7068621A patent/JPH08229106A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001149447A (en) * | 1999-11-26 | 2001-06-05 | Cosmo Project Kk | Method for sterilizing infectious waste |
| JP2004195067A (en) * | 2002-12-20 | 2004-07-15 | Nec Ameniplantex Ltd | Safety control equipment in contaminant treatment area |
| JP2013220131A (en) * | 2012-04-13 | 2013-10-28 | Green:Kk | Sterilization device and method for sterilization |
| JP2014119119A (en) * | 2012-12-13 | 2014-06-30 | Miura Co Ltd | Double door type vacuum cooler |
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