JPS597036A - Manufacture of sterilized packing bag - Google Patents

Manufacture of sterilized packing bag

Info

Publication number
JPS597036A
JPS597036A JP57115563A JP11556382A JPS597036A JP S597036 A JPS597036 A JP S597036A JP 57115563 A JP57115563 A JP 57115563A JP 11556382 A JP11556382 A JP 11556382A JP S597036 A JPS597036 A JP S597036A
Authority
JP
Japan
Prior art keywords
tube
cut
bag
packaging bag
ventilation hole
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
Application number
JP57115563A
Other languages
Japanese (ja)
Other versions
JPS6233944B2 (en
Inventor
国富 純
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Medical Supply Corp
Original Assignee
Nippon Medical Supply Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Medical Supply Corp filed Critical Nippon Medical Supply Corp
Priority to JP57115563A priority Critical patent/JPS597036A/en
Publication of JPS597036A publication Critical patent/JPS597036A/en
Publication of JPS6233944B2 publication Critical patent/JPS6233944B2/ja
Granted legal-status Critical Current

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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】 本発明は、医療用品を収納した状態で滅菌し、かつこの
滅菌状態を保持することができるようにした滅菌包装袋
の製造方法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a sterile packaging bag that can sterilize medical supplies while storing them and maintain this sterile state.

この種の滅菌包装袋は、ポリエチレンあるいはポリプロ
ピレン等通気性を有さないプラスチックフィルムで構成
され、その一部に切り抜き孔を設け、この切り抜き孔を
、通気性はあるが微生物は容易に通過せしめない性質を
有する紙、不織布、プラスチック等からなる通気性材で
覆い、通気性部が構成されている。
This type of sterile packaging bag is made of a non-breathable plastic film such as polyethylene or polypropylene, and has a cut-out hole in a part of it, which is breathable but does not allow microorganisms to easily pass through. The air-permeable part is covered with a breathable material made of paper, non-woven fabric, plastic, etc. that has certain properties.

従来、この種の滅菌包装袋を製造するにあたっては、平
面状のフィルムの一部に穴明けをし、この切り抜き孔を
覆うように通気性材を貼着して通気性St−構成し、つ
いでフィルムを二つに折り曲げてからそのニガの側辺を
ウエルダにより接着して袋状にするという方法がとられ
ていた。しかしながら、この方法では、通気性部を構成
するためにフィルムに穴明は加工を施すた  ゛め、切
り抜きくずが発生し、この切り抜きくずを100%回収
することは不可能である。従って、得られた滅菌包装袋
に収容した医療器具内に異物として混入する危険があり
、好ましくなかつた。また、フィルムを袋状にするため
の工程数が多く、コストが高くなると共に、ウェルダ部
分が長いためウエルダ作業における熱管理が問題となる
などの不具合があった。一方、チューブ状のインフレー
ションフィルムの片面に穴明は加工を施す方法も考えら
れるが、この方法では上記の方法よりもさらに切り抜き
ぐずの回収が不可能となり、上述した危険性はさらに高
くなる。
Conventionally, when manufacturing this type of sterile packaging bag, a hole is punched in a part of a flat film, and a breathable material is pasted to cover the cutout hole to form a breathable St. The method used was to fold the film in half and then glue the sides of the film together using a welder to form a bag shape. However, in this method, since the film is perforated to form the breathable portion, cut-out waste is generated, and it is impossible to recover 100% of the cut-out waste. Therefore, there is a risk that foreign matter may be mixed into the medical instruments housed in the obtained sterile packaging bag, which is not preferable. Further, there are problems such as a large number of steps for forming the film into a bag shape, which increases the cost, and problems such as heat management during the welding work because the welding part is long. On the other hand, it is also possible to make holes on one side of a tube-shaped blown film, but this method makes it even more impossible to collect the cut-out waste than the above-mentioned method, and the above-mentioned risks are even higher.

上述した方法の欠点を改善するため、本出顔人は、第1
図に示すように、プラスチックフィルムのチューブαを
所定の長さに切断し、その一端辺りをシールして袋体を
形成し、ついでこの袋体をふくらませた状態でその片面
にスリットcf切設し、その後このスリットCを覆うよ
う例接着剤eを塗布した通気性材d(滅菌紙)全貼着し
、第1図に示す構造の滅菌包装袋を製造する方法を発明
し、既に特許出願している。
In order to improve the shortcomings of the above-mentioned methods, Hondekaanin proposed the first method.
As shown in the figure, a plastic film tube α is cut to a predetermined length, one end of which is sealed to form a bag, and then a slit cf is cut on one side of the bag while it is inflated. He then invented a method for manufacturing a sterile packaging bag with the structure shown in Figure 1 by pasting the entire slit C with a breathable material d (sterilized paper) coated with adhesive e, and has already applied for a patent. ing.

しかしながら、この方法によって得られる滅菌包装袋の
通気性部の断面構造は第2図に示すとおりであり、滅菌
にあたって空気を脱気する場合、空気はスリットc’t
<通過するが、空気の通過する方向、圧力に裏ってスリ
ットCは影響を受けて変化し、一定の間隙に維持さnて
はいない。また、通気性材dはスリットCt−覆い、あ
るいは接触しているので、スリットcが弁の役割を果し
1常に一定量の気体が通過できるというわけにはいかな
い。従って、脱気に長時間を要し、また、エチレンオキ
サイドガス(gToo)滅菌後に残留ETOはスリット
から出に<<、長時間放置後に使用せざるを得ないとい
う、未だ改善すべき点が残されていた。
However, the cross-sectional structure of the breathable part of the sterile packaging bag obtained by this method is as shown in Figure 2, and when the air is degassed during sterilization, the air is
However, the slit C changes depending on the direction in which the air passes and the pressure, and is not maintained at a constant gap. Furthermore, since the breathable material d covers or is in contact with the slit Ct, the slit C plays the role of a valve and cannot always allow a constant amount of gas to pass through. Therefore, it takes a long time for degassing, and the remaining ETO does not come out through the slit after sterilization with ethylene oxide gas (gToo), so it has to be used after being left for a long time.There are still issues that need to be improved. It had been.

本発明は、上記の事情に鑑みなされたものであり、その
目的とするところは、滅菌時の脱気を短時間で行なえる
と共に残留ETOの発散が早い滅菌包装袋を、切り抜き
ぐずの発生もなく、極めて作業性しくかつ安価に製造で
きる方法を提供することにある。
The present invention was made in view of the above circumstances, and its purpose is to provide a sterilized packaging bag that can be deaerated in a short time during sterilization, and also allows residual ETO to dissipate quickly, without generating cut-out waste. The object of the present invention is to provide a method that is extremely easy to work with and can be manufactured at low cost.

上記本発明の目的は、基本的には、少なくとも1つの舌
片を折シ曲げられるような形状の切9込みを所定間隔で
設けたプラスチックフィルムのチューブを、上記切り込
みを設けた側面を突縁に摺接せしめながら搬送し、切り
込み部の舌片を折り曲げ、通気孔を形成せしめる工程を
含む方法にLつ−C達成されることを見い出し、本発明
を完成するに至ったものである。
Basically, the object of the present invention is to provide a plastic film tube with cutouts 9 formed at predetermined intervals such that at least one tongue piece can be bent, and the side surface provided with the cutouts with a projecting edge. The present invention has been completed based on the discovery that L-C can be achieved by a method that includes the steps of conveying the material while slidingly contacting the material, bending the tongue of the cut portion, and forming a ventilation hole.

以下、添附図面を参照しながら、本発明の方法について
詳しく説明する。
Hereinafter, the method of the present invention will be explained in detail with reference to the accompanying drawings.

第3図及び第4図は、本発明方法の上記工程の一実施態
様を示し、第3図は縦断血肉、第4図は平面図を示す。
3 and 4 show an embodiment of the above steps of the method of the present invention, with FIG. 3 showing longitudinally sectioned blood meat and FIG. 4 showing a plan view.

矢印方向に搬送されている0、04〜0.1鰭の厚さの
インフレーションプラスチックフィルムのチューブ1の
内部には略円柱状の中子3が収容されており、チューブ
1はピンチロール4f’t’H平帯状に搬送され、ビン
チロール4からロール5までは中子3により管状に拡げ
られた状態で搬送され、ロール5以後は再び平帯状で搬
送される。チューブ夏には、少なくとも1つの舌片を折
シ曲げられる工うな形状(第3図及び第4図ではX状)
の切p込み2が、滅菌包装袋の長さに相当する間隔で設
けられている。
A substantially cylindrical core 3 is housed inside a tube 1 of blown plastic film with a thickness of 0.04 to 0.1 fin, which is being conveyed in the direction of the arrow. It is conveyed in the form of a 'H flat band, and from the vinyl roll 4 to the roll 5 it is conveyed in a state expanded into a tubular shape by the core 3, and after the roll 5 it is conveyed again in the form of a flat band. In summer, the tube has a shape that allows at least one tongue to be bent (X-shaped in Figures 3 and 4).
The notches 2 are provided at intervals corresponding to the length of the sterile packaging bag.

中子3の対称上下両面には所定位置に凹部6が設けられ
、該凹部6のチューブ搬送方向側の縁は鋭角的な突縁7
とされている。一方、中子3の四部6に面する所定位置
には、任意数(因では4個)のガイドロール8がチュー
ブ1を押圧するように配設されている。
Recesses 6 are provided at predetermined positions on both upper and lower symmetrical surfaces of the core 3, and the edges of the recesses 6 on the tube conveying direction side are formed with sharp edges 7.
It is said that On the other hand, at predetermined positions facing the four parts 6 of the core 3, an arbitrary number (four in this case) of guide rolls 8 are arranged so as to press the tube 1.

以上のような状態でチューブ1が搬送される場合、チュ
ーブ1は中子3の凹部6の位置においてはガイドロール
8で押圧され、中子3の周側面に摺接すると共に、凹部
6の突縁7にも摺接しながら搬送されるため、第5因に
示すように、切り込み部のjつの舌片9がガイドロール
8により押し下げられたチューブfから離れ、上記突縁
7によりチューブ1の内側へ折り返され、第6図に示す
ような三角形の通気孔1oが形成される。なお、中子3
は、回転自在に所定位置に固定されたガイドロール8に
エリ、押し下げられ几チニープ1を介して挾持された状
態にあり、チューブ1の内部をスライドしながら一定に
位置している。
When the tube 1 is conveyed in the above state, the tube 1 is pressed by the guide roll 8 at the position of the recess 6 of the core 3 and comes into sliding contact with the circumferential surface of the core 3, and the projecting edge of the recess 6 7, the j tongues 9 of the notch part separate from the tube f pushed down by the guide roll 8 and move toward the inside of the tube 1 by the flange 7, as shown in the fifth factor. It is folded back to form a triangular ventilation hole 1o as shown in FIG. In addition, the middle child 3
is pushed down by a guide roll 8 that is rotatably fixed at a predetermined position and is held in place via the chineap 1, and is kept at a constant position while sliding inside the tube 1.

通気孔IOの形状は、切り込み2の形状によって決まり
、第6肉に示すようにX状の場合には三角形となり、m
7図に示すように各状の場合には、対称的に2つの舌片
9αが折り曲げられ、通気孔10αの形状は菱形となる
。通気孔の大きさの調整は、切り込みの長さや形状音質
えることにょρ可能である。
The shape of the ventilation hole IO is determined by the shape of the notch 2, and in the case of an X-shape as shown in the 6th hole, it becomes a triangle;
As shown in FIG. 7, in each case, the two tongue pieces 9α are bent symmetrically, and the shape of the ventilation hole 10α becomes a rhombus. The size of the ventilation hole can be adjusted by adjusting the length and shape of the cut and the sound quality.

以上のようにして通気孔1oが形成されたチューブ1t
/′i、ついで、通気孔1oの1つを含むような所定の
長さに切断され、その一端辺11をウェルズでシールし
、第8肉に示すような袋体を形成する。その後、上記通
気孔10を覆うような形状及び大きさであり、かつその
周辺部に粘着剤I3を塗布した通気性材12を、上記通
気孔10(i7覆うように貼着する。この通気性材12
 B 、細菌を容易に通過せしめない通気性の炉逸材で
あり、一般には滅菌紙と呼ばれる紙、合成紙、不織布フ
ィルターなどである。
A tube 1t in which a ventilation hole 1o is formed as described above
/'i Then, it is cut to a predetermined length that includes one of the ventilation holes 1o, and one end side 11 of the bag is sealed with a well to form a bag as shown in the eighth part. Thereafter, a breathable material 12 having a shape and size that covers the ventilation hole 10 and having adhesive I3 applied around it is pasted so as to cover the ventilation hole 10 (i7). Material 12
B. Breathable materials that do not allow bacteria to pass through easily, such as paper commonly called sterile paper, synthetic paper, and non-woven filters.

以上のようにして製造された滅菌包装袋は、その中に医
療用器具等の被滅菌材を収容して開放端をシールした後
、滅菌ガス浴させて滅菌処理する。
The sterilized packaging bag manufactured as described above is sterilized by accommodating the material to be sterilized such as medical instruments therein and sealing the open end thereof by exposing it to a sterilizing gas bath.

第9図は、本発明に係る通気孔形成工程の他の実施態様
を示し、この場合にはチューブ1の中には扁平円柱状の
中子14が収容され、かつ該中子14を覆いチューブ1
全抑圧するように凹部が設けられたガイドプレート15
が所定位置に配設されている。上記凹部のチューブ搬送
方向側の縁が突縁16として形成されていることは、前
述した場合と同様である。
FIG. 9 shows another embodiment of the vent hole forming step according to the present invention, in which a flat cylindrical core 14 is housed in the tube 1, and the core 14 is covered with the tube. 1
Guide plate 15 provided with a recess so as to completely suppress the
is placed in a predetermined position. As in the case described above, the edge of the recess on the tube conveying direction side is formed as a protruding edge 16.

以上の状態でチューブ1が搬送される場合には、突縁近
傍でチューブ1は中子14にエフ押し上げられるので、
切り込み部の1つの舌片9hはチューブ1から離出し、
突縁16にエリ外側に折り曲げられ、通気孔が形成され
る。要するに、少なくとも1つの舌片を折り曲けられる
ような形状の切り込みを設けたチューブを、上記切り込
みを設けた側面を突縁に摺接せしめながら搬送すること
によって、切り込み部、の舌片を折り曲げて通気孔を形
成できればよい。
When the tube 1 is transported in the above condition, the tube 1 is pushed up by the core 14 near the flange, so
One tongue piece 9h of the notch part leaves the tube 1,
The projecting edge 16 is bent outward to form a ventilation hole. In short, by transporting a tube provided with a notch shaped so that at least one of the tongues can be bent is brought into sliding contact with the ridge with the side surface provided with the notch, the tongues at the notch are bent. It is sufficient if a ventilation hole can be formed by

次に、試験例を示して本発明方法によって得られる滅菌
包装袋の性能を示す。
Next, a test example will be shown to demonstrate the performance of the sterile packaging bag obtained by the method of the present invention.

試験例 試料〔X字状スリントまたは第6図に示す形状の通気孔
(以下、ストットという)を設けたプラスチックフィル
ムの片面に通気性材を被着したもの〕を収容、固定した
試料容器の一側部をU字管マノメーターに接続し、他側
部を流量調節計に接続し、該流]l調節計は真空ポンプ
に接続し、上記試料の他側部を真空ポンプにより真空吸
引し、その際のマノメーターの圧力差を読み取υ、試料
を透過するガスの透過率を測定し友。
One of the sample containers containing and fixing the test example sample [an X-shaped slint or a plastic film with ventilation holes in the shape shown in Figure 6 (hereinafter referred to as slits, coated with a breathable material on one side)]. One side of the sample is connected to a U-tube manometer, the other side is connected to a flow rate controller, the flow controller is connected to a vacuum pump, and the other side of the sample is evacuated by the vacuum pump, and the other side is connected to a flow rate controller. The pressure difference of the manometer is read at the time of υ, and the permeability of the gas passing through the sample is measured.

一般に多孔性材料の両側の流体間に圧力差jpがあると
き、流体はDαrcyの法則に従って材料中を透過する
Generally, when there is a pressure difference jp between fluids on both sides of a porous material, the fluid permeates through the material according to the Dαrcy law.

Us −Q/A  −Lp・ΔP 、ただし、 Us:流体の線速度 (碑〆sac )Q:通過流量 
(1/secン A:試料の有効面積 (d) ΔP:圧力損失 (wHy) LP:水力学的透過係数 (透過率) 本試験においては、2m×2crnの試料を用いた。従
って、試料容器への固定桟を差し引いて、有効面積入は
3.l4crlT:あシ、また通過流量Qは517mt
ル一定とした。
Us -Q/A -Lp・ΔP, where Us: Linear velocity of fluid (Sac)Q: Passing flow rate
(1/sec A: effective area of the sample (d) ΔP: pressure drop (wHy) LP: hydraulic permeability coefficient (permeability) In this test, a 2 m x 2 crn sample was used. Therefore, the sample container Subtracting the fixed crosspiece, the effective area is 3.l4crlT: reed, and the flow rate Q is 517mt.
was kept constant.

従って、ガス透過率Lpは、 LP−Q/A、−ΔPX I O(L/Tr? #71
un ” ygHHP )で与えられる。この数値が高
い捏造過性が良いことを示す。
Therefore, the gas permeability Lp is: LP-Q/A, -ΔPX IO(L/Tr? #71
un''ygHHP). This value indicates a high degree of falsification.

試験結果を下記の表に示す。The test results are shown in the table below.

上記表から明らかなように、本発明の方法により通気孔
を形成した場合、ガス透過率は格段に高くなる。
As is clear from the above table, when the vents are formed by the method of the present invention, the gas permeability becomes significantly higher.

以上のように、本発明に係る滅菌包装袋の製造方法は、
切り込みを設けたプラスチックフィルムのチューブを突
縁に摺接せしめながら搬送することによって、切り込み
部の舌片を折り曲げて通気孔を形成させる工程、袋体形
成工程、及び通気性材貼着工程工υなるため、通気孔の
形成が極めて簡単であり、また連続的に行なうことがで
きるので生産性に優れ、コストも低減することができる
。さらに、通気孔の形成が、切シ込みとその舌片の折り
曲げによって行なわれるため、従来法の工うな切シ抜き
ぐずの発生がなく、医療器具内に異物として混入する危
険性もなくなる。さらに、本発明方法によって得られる
滅菌包装袋は、第8図に示すように通気孔を有するので
、空気の脱気がスムーズとな勺、従って滅菌時の減圧(
脱気、排気)時間が短縮でき、また減圧時に袋のふくら
みが緩和でき、内袋、内箱、外箱に圧接しにくいので破
損も防止できる。さらに残留ETOの発散が早くなるの
で、滅菌径長時間経過しないと使用できないというよう
な問題もなくなる。なお、袋体形成工程と通気性付貼着
工程の順序は、いずれが先であっても工い。
As described above, the method for manufacturing a sterile packaging bag according to the present invention is as follows:
A process of bending the tongue of the notch to form a ventilation hole by transporting a plastic film tube with a notch while sliding it in contact with the rim, a bag forming process, and a breathable material pasting process υ Therefore, the formation of ventilation holes is extremely simple and can be performed continuously, resulting in excellent productivity and cost reduction. Furthermore, since the ventilation holes are formed by making incisions and bending the tongues thereof, there is no generation of cutting waste unlike in the conventional method, and there is no risk of foreign matter entering the medical instrument. Furthermore, since the sterile packaging bag obtained by the method of the present invention has ventilation holes as shown in Figure 8, the air can be smoothly removed, and therefore the vacuum during sterilization (
Degassing and exhausting) time can be shortened, the bulge of the bag can be reduced during depressurization, and damage can be prevented since it is difficult to press against the inner bag, inner box, and outer box. Furthermore, since the residual ETO dissipates quickly, there is no longer a problem that the product cannot be used until a long period of time has elapsed after sterilization. It should be noted that the order of the bag forming process and the breathable adhering process does not matter whichever comes first.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来の滅菌包装袋の斜視図、第2図は第1図の
通気性材貼着部の部分断面図、第3図は本発明方法の通
気孔形成工程を説明する縦断面図、第4図は第3図の平
面図、第5図は第3図A部の拡大断面因、第6図及び第
7図は切り込みと通気孔の形状の関係を示す説明図、第
8図は本発明方法によって得られ九滅菌包装袋の平面図
、第9因は通気孔形成工程の他の実施態様を説明する縦
断面図である。 1はチューブ、2は切り込み、3.14は中子、7.1
6は突縁、9,9α、qbは舌片、10.10αは通気
孔、12は通気性材。 出願人 株式会社 日本メディカル・サプライ代理人 
弁理士 米 原 正 章 弁理士 浜 本   忠
FIG. 1 is a perspective view of a conventional sterile packaging bag, FIG. 2 is a partial sectional view of the part where the breathable material is attached in FIG. , FIG. 4 is a plan view of FIG. 3, FIG. 5 is an enlarged cross-sectional view of section A in FIG. FIG. 9 is a plan view of a sterilized packaging bag obtained by the method of the present invention, and FIG. 1 is the tube, 2 is the notch, 3.14 is the core, 7.1
6 is a ridge, 9, 9α, qb are tongue pieces, 10.10α is a ventilation hole, and 12 is a breathable material. Applicant Japan Medical Supply Co., Ltd. Agent
Patent attorney Masaaki Yonehara Patent attorney Tadashi Hamamoto

Claims (1)

【特許請求の範囲】 少なくとも1つの舌片を折シ曲げられるような形状の切
り込みを所定間隔で設けたプラスチックフィルムのチュ
ーブを、上記切り込みを設けた側面を突縁に摺接せしめ
ながら搬送し、切シ込み部の舌片を折フ曲げ、通気孔を
形成せしめる工程、 形成された通気孔の1つを含むような所定の長さに上記
チューブを切断し、その一端辺をシールして袋体を形成
せしめる工程、および前記通気孔を覆う工うに通気性材
を貼着する工程、 からなる滅菌包装袋の製造方法。
[Scope of Claims] A tube of plastic film in which at least one tongue piece is cut in a shape that can be bent at a predetermined interval is conveyed while the side surface on which the cut is provided slides into contact with the flange, A step of bending the tongue piece at the cut-out part to form a ventilation hole, cutting the tube to a predetermined length that includes one of the formed ventilation holes, and sealing one end of the tube to form a bag. A method for manufacturing a sterile packaging bag, comprising the steps of: forming a body; and pasting a breathable material on the hole covering the ventilation hole.
JP57115563A 1982-07-05 1982-07-05 Manufacture of sterilized packing bag Granted JPS597036A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57115563A JPS597036A (en) 1982-07-05 1982-07-05 Manufacture of sterilized packing bag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57115563A JPS597036A (en) 1982-07-05 1982-07-05 Manufacture of sterilized packing bag

Publications (2)

Publication Number Publication Date
JPS597036A true JPS597036A (en) 1984-01-14
JPS6233944B2 JPS6233944B2 (en) 1987-07-23

Family

ID=14665638

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57115563A Granted JPS597036A (en) 1982-07-05 1982-07-05 Manufacture of sterilized packing bag

Country Status (1)

Country Link
JP (1) JPS597036A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62265482A (en) * 1986-05-10 1987-11-18 Shimadzu Corp Internal gear pump or motor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5059174U (en) * 1973-09-28 1975-06-02
JPS5667246A (en) * 1979-11-06 1981-06-06 Nippon Medical Sapurai Kk Manufacture of sterilizing bag

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5059174U (en) * 1973-09-28 1975-06-02
JPS5667246A (en) * 1979-11-06 1981-06-06 Nippon Medical Sapurai Kk Manufacture of sterilizing bag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62265482A (en) * 1986-05-10 1987-11-18 Shimadzu Corp Internal gear pump or motor

Also Published As

Publication number Publication date
JPS6233944B2 (en) 1987-07-23

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