JP2004182327A - Plug for transfusion container - Google Patents

Plug for transfusion container Download PDF

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Publication number
JP2004182327A
JP2004182327A JP2002354758A JP2002354758A JP2004182327A JP 2004182327 A JP2004182327 A JP 2004182327A JP 2002354758 A JP2002354758 A JP 2002354758A JP 2002354758 A JP2002354758 A JP 2002354758A JP 2004182327 A JP2004182327 A JP 2004182327A
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JP
Japan
Prior art keywords
plug
outer frame
infusion container
cylindrical outer
cover
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.)
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Application number
JP2002354758A
Other languages
Japanese (ja)
Inventor
Hidekatsu Shoji
英克 庄司
Minoru Oka
実 岡
Hiroshi Honda
浩 本田
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.)
Otsuka Pharmaceutical Co Ltd
Original Assignee
Otsuka Pharmaceutical Co Ltd
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 Otsuka Pharmaceutical Co Ltd filed Critical Otsuka Pharmaceutical Co Ltd
Priority to JP2002354758A priority Critical patent/JP2004182327A/en
Publication of JP2004182327A publication Critical patent/JP2004182327A/en
Withdrawn legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a plug for a transfusion container, which makes it easy to reseal an elastic body with a covering after the covering is peeled. <P>SOLUTION: A locking portion 9 in the form of a projection is provided on the side of the covering 4 via a thin wall 3 integrally connecting the covering 4 and a cylindrical outer frame. An unlocking portion 10 in the form of a recess is formed on the side of the cylindrical outer frame 2, thereby providing a recoupling means 8. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、医療用の輸液容器の栓体に関するものである。
【0002】
【従来の技術】
従来、輸液容器は、プラスチック製でボトル型やバッグ型のものがある。このような輸液容器の本体に接合される栓体は、一般に、プラスチック製であって、円筒状外枠体、穿刺針を挿通する弾性体、及び前記弾性体天面を外気から遮蔽するようにして覆う被覆体とからなる。斯かる栓体は、一般に、輸液容器本体に溶着等によって接合され、輸液容器内を外部から完全に遮断することを保証している。
【0003】
被覆体としては、円筒状外枠に溶着された剥離用フィルムタイプのもの(例えば、特許文献1)や、円筒状外枠に引き剥ぎ用薄肉部を介して一体成形されプルリングで剥ぎ取るもの(例えば、特許文献2)の他、倒立台として兼用できる捩切りタイプの円板状のもの(例えば、特許文献3)が知られている。
【0004】
【特許文献1】
実開平1−104144号公報
【0005】
【特許文献2】
実開平1−170236号公報
【0006】
【特許文献3】
実開平6−75396号公報
【0007】
【発明が解決しようとする課題】
輸液容器に薬剤を混注する作業は、患者への投与直前に病棟にて行うか或いは調剤室やナースステーションにて行われるが、従来の栓体は、一旦被覆体を剥がしてしまうと、弾性体天面は露出したままとなってしまう。従って、混注操作を病棟以外の場所で行うと、病棟への移送中や一時保管中に弾性体天面が汚染される畏れがあり、場合によっては投与時に消毒操作を行う必要が生じてくる。
【0008】
そこで、本発明は、被覆体を剥がした後に、再び弾性体を被覆体によって簡便に密封できるようにした輸液容器の栓体を提供することを目的とする。
【0009】
【課題を解決するための手段】
上記目的を達成するため、本発明に係る輸液容器用栓体は、基端部を輸液容器本体に接合される筒状外枠体と、該筒状外枠体に内嵌される穿刺針挿通用弾性体を密閉するように前記筒状外枠体の先端面に切り離し用環状薄肉部を介して一体的に成形された被覆体と、該被覆体を前記筒状外枠体から切り離す操作のために前記被覆体に設けられた把持部と、前記被覆体を切り離した後に前記弾性体を前記被覆体によって被覆するために該被覆体を前記筒状外枠体に係合させる再結合手段と、を有し、該再結合手段は、前記筒状外枠体と前記被覆体とを相互に係合するように設けられた係合部と被係合部とを備えることを特徴とする。
【0010】
本発明に係る輸液容器用栓体は、斯かる構成を採用したことにより、被覆体を筒状外枠体から切り離した後に、再結合手段によって簡便に結合させることができる。
【0011】
前記薄肉部は、前記係合部と被係合部との間に形成されていることが好ましい。
【0012】
前記係合部と被係合部との係合は、凹凸嵌合による係合、或いは、締り嵌めによる係合を採用し得る。
【0013】
前記凹凸嵌合の凸部は、熱可塑性エラストマーにより形成しておけば、密封性が向上するために好ましい。
【0014】
また、前記筒状外枠体及び前記被覆体の少なくとも一方に、再結合時の密封のための密封用弾性リングを装着しても良い。
【0015】
さらに、前記再結合手段は、前記被覆体の切り離し後に前記筒状外枠体に形成される開口縁部と、該開口縁部と係合し得るように前記被覆体に形成された凹所とにより構成しても良い。
【0016】
前記把持部は、倒立台を兼ねる鍔状部により構成するか、或いは、プルリングとすることができる。
【0017】
前記筒状外枠体に前記弾性体を固定し、該弾性体の輸液容器側の面を遮蔽フィルムで被覆しておけば、弾性体と輸液容器内の薬液との接触を避ける必要が有る場合に有利である。
【0018】
また、前記被覆体と前記筒状外枠体とに渡り、シュリンクフィルム又はテープ等の被覆フィルムによって被覆しておけば、被覆体を一度切り離しているかどうかの目安になり好ましい。
【0019】
【発明の実施の形態】
本発明の好ましい実施形態について以下に図面を参照して説明する。なお、全図を通し同様の構成部分には同符号を付した。
【0020】
先ず本発明に係る輸液容器用栓体(以下、単に「栓体」と言う。)の第1実施形態について、図1〜8を参照して説明する。図1は、輸液容器用栓体を示す平面図(a)及び部分縦断面図(b)である。
【0021】
図1に示す栓体1は、筒状外枠体2に切り離し用環状薄肉部3を介して被覆体4が一体的に成形されている。被覆体4には、被覆体4を筒状外枠体2から切り離す際に把持するための把持部5が形成されている。把持部5は、図示の例では鍔状とされている。このような栓体1は、プラスチック成形体とすることができる。
【0022】
筒状外枠体2には、図2に示すような穿刺針挿通用弾性体6が装着され得る。弾性体6は、プラスチック製支持体7に外嵌され溶着されている。支持体7の端部外周面に外周溝7aが形成される一方、筒状外枠体2の端部内周面には内側に突出する内周縁部2aが形成されており、筒状外枠体2に弾性体6と一体となった支持体7を押し込めば、図3に示すように、内周縁部2aが外周溝7aに嵌合し、抜けを防止する。こうして筒状外枠体2に嵌め込まれた弾性体6の外側面(穿刺針を刺す側の面)は、薄肉部3を介して連結された被覆体4によって密閉されている。
【0023】
栓体1は、被覆体4を筒状外枠体2から切り離した後に、弾性体6を被覆体4によって密閉状態に被覆するように、被覆体4と筒状外枠体2とを相互に結合させる再結合手段8を備えている(図1参照)。
【0024】
再結合手段8は、薄肉部3を介して、被覆体4の側に設けられた係合部9と、筒状外枠体2の側に設けられた被係合部10とを有する。図示の例では、図4に拡大して示すように、係合部9は、被覆体4に連成された首部11の外周面に形成された凸部によって構成され、被係合部10は、筒状外枠体2の内周面に形成された凹溝により構成されており、これら係合部9と被係合部10とは、薄肉部3を挟んで薄肉部3の近傍に形成されている。係合部9を構成する前記凸部は、首部11の全周に亘って延びる凸状リブとする他、首部11の外周面に沿って断続的或いは部分的に凸所を設けても良い。
【0025】
係合部9は、図4に示すように、薄肉部3に向かって漸次薄肉となるテーパー面12を備えている。このテーパー面12は、係合部9を構成している凸部と連続して形成されており、薄肉部3を切り離した後(図5参照)に、該切り離し後に生じる筒状外枠体2の開口部に係合部9を嵌め込み易くする。
【0026】
上記構成を有する栓体1は、図8に示すように、筒状外枠体2の基端部に形成されたフランジ部2bを輸液容器本体14に溶着することにより、輸液容器本体14に取り付けられ、鍔状の把持部5は、輸液容器13を倒立状体で自立させるための倒立台としても機能する。
【0027】
上記構成を有する栓体1を備える輸液容器では、筒状外枠体2を把持するとともに、鍔状の把持部5を把持して捩ることにより、薄肉部3が切れて、図5に示すように、被覆体4が筒状外枠体2から切り離される。
【0028】
穿刺針挿通用弾性体6に穿刺針(図示せず)を挿通し、薬剤の入ったバイアル瓶(図示せず)と輸液容器本体14とを連通させ、両者の薬剤を混合し、輸液容器本体14へ移行させる混注作業の後、前記穿刺針を弾性体6から抜き取り、被覆体4を切り離した後に形成される筒状外枠体2の開口部に被覆体4の首部11を押し込むようにすれば、図6及び図7に示すように、再結合手段8によって被覆体4を再び筒状外枠体2に係合させることができる。
【0029】
弾性体6の密閉をより確実にするために、図9に切り離し前(図9(a))と再結合後(図9(b))とを拡大して示すように、係合部9を構成する凸部を熱可塑性エラストマーによって形成することができる。熱可塑性エラストマーは、被覆体4を形成しているプラスチック材料と一体成形することができ、製造上の観点からも好ましい。
【0030】
また、図9に示すように、係合部9とは別に、被覆体4の首部11の外周部に、密封用弾性リング15を装着しても良い。この場合の弾性リング15も、熱可塑性エラストマーを採用し、被覆体4の首部11に一体成形することが好ましい。
【0031】
上記薄肉部、上記再結合手段を構成する係合部及び被係合部は、上記実施形態の例に限らず、種々の態様が可能であり、その変更態様を以下に図10〜13を参照して説明する。なお、以下に示す図10〜図13の変更態様については、図4又は図7と同様の拡大図を参照して説明する。
【0032】
図10に示す第2実施形態では、筒状外枠体2に首部11が形成され、首部11と被覆体4との繋ぎ目に薄肉部3が形成されている。被係合部10は、首部11の外周部であって薄肉部3の近傍に形成された凸部によって構成される一方、係合部9は、被覆体4に首部11を挿入し得る凹所16が形成されていてその凹所16の内周壁に形成された環状凹溝によって構成されており、これら凸部と凹溝とが嵌合し得るようになっている。
【0033】
なお、図11に示すように、薄肉部3は、首部11の端部以外の部位に形成し、首部11に係合部9及び被係合部10を形成することができる。図示の例では、係合部9は、薄肉部3近傍の内周面に設けた環状凹溝によって構成される一方、被係合部10は、薄肉部3近傍の外周面に設けた凸部によって形成されており、両者が凹凸嵌合するようになっている。
【0034】
図12は、再結合手段10として締り嵌めによる係合を採用した実施形態である。図12に示す例では、筒状外枠体2と被覆体4に連成された首部11との繋ぎ目に薄肉部3が形成されている。首部11の外径寸法は、首部11を切り離した後に形成される筒状外枠体2の開口部口径よりも少しだけ大きくなるように形成されている。図示の例では、首部11の外径は、薄肉部3から離れるに従い徐々に外径が大きくなるように形成してある。従って、切り離された首部11を前記開口部に強く差し込めば、該開口部の内周縁部と首部11との摩擦係合により締り嵌めが得られる。
【0035】
図13は、図12に示す再結合手段の変更態様であり、薄肉部3は、被覆体4と筒状外枠体2に連成された首部11との繋ぎ目に形成されており、被覆体4には、切り離された首部11を挿入し得る凹所16が形成されている。首部11の外径は、凹所16の内径より少しだけ大きくなるように形成されており、切り離された首部11を凹所16に強く差し込むことにより、締り嵌めにより係合する。なお、図示の例では、首部11の外径は、薄肉部3から離れるに従って徐々に大きくなるように形成されている。
【0036】
次に、本発明に係る輸液容器用栓体のプルリングタイプの実施形態について説明する。なお、この実施形態については、弾性体の説明は省略した。
【0037】
図14に示すように、筒状外枠体2に薄肉部3を介して被覆体4が一体的に形成され、被覆体4にプルリングにより構成される把持部5が一体的に形成されている。薄肉部3は、断面V字状の環状溝3aを形成することによって構成されており、薄肉部3を切り離すと、筒状外枠体2の開口部周縁端面にはテーパー面が形成される。被覆体4には、薄肉部3の近傍に、環状溝状で断面鉤状の凹所からなる係合部9が形成されており、被係合部10は、薄肉部3を切り離した後の筒状外枠体2の開口縁部によって構成される。従って、前記開口部に切り離された被覆体4を押し込めば、両者が係合するようになっている。
【0038】
上記した実施形態を含み、本発明に係る栓体では、使用前における被覆体の未開封保証のため、及び、被覆体が一度開封されたかどうかを判断できるようにするために、前記被覆体と前記筒状外枠体とに渡り、シュリンクフィルム又はテープ等の被覆フィルム(図示せず)によって被覆しておくことができる。
【0039】
また、弾性体6が輸液容器内の薬液と接触することが好ましくない場合には、弾性体6の輸液容器本体の側の面に、薬液を通さない遮蔽フィルム(図示せず)を張設しておくことができる。
【図面の簡単な説明】
【図1】本発明に係る輸液容器用栓体の一実施形態を示し、図1(a)は平面図、図1(b)は部分縦断面図である。
【図2】図1の栓体と、該栓体に装着される弾性体とを分離した状態で示す部分縦断面図である。
【図3】図2の栓体と弾性体とを結合した状態を示す部分断面図である。
【図4】図2の破線で囲んだ領域Aを拡大して示す断面図である。
【図5】図3の弾性体を装着した栓体から、被覆体を切り離した状態を示す部分断面図である。
【図6】図5の状態から、被覆体を筒状外枠体に再結合した状態の栓体を示す部分断面図である。
【図7】図6の破線で囲んだ領域Bを拡大して示す断面図である。
【図8】図3の弾性体付き栓体を輸液容器本体に接合した輸液容器を示す正面図である。
【図9】本発明に係る栓体の変更態様を、切り離し前(図9(a))と再結合後(図9(b))で示す、図4に相当する拡大断面図である。
【図10】本発明に係る栓体の他の変更態様を示す、図4に相当する拡大断面図である。
【図11】本発明に係る栓体の更に他の変更態様を示す、図4に相当する拡大断面図である。
【図12】本発明に係る栓体の更に他の変更態様を示す、図4に相当する拡大断面図である。
【図13】本発明に係る栓体の更に他の変更態様を示す、図4に相当する拡大断面図である。
【図14】本発明に係る栓体の更に他の変更態様を示す、図4に相当する拡大断面図である。
【符号の説明】
1 栓体
2 筒状外枠体
3 薄肉部
4 被覆体
5 把持部
6 弾性体
7 支持体
8 再結合手段
9 係合部
10 被係合部
14 輸液容器本体
15 弾性リング
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a plug of a medical infusion container.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, an infusion container is made of plastic, such as a bottle or a bag. A plug joined to the main body of such an infusion container is generally made of plastic, and is configured to shield a cylindrical outer frame, an elastic body through which a puncture needle is inserted, and a top surface of the elastic body from outside air. And a covering body. Such a plug is generally joined to the infusion container main body by welding or the like to ensure that the inside of the infusion container is completely shut off from the outside.
[0003]
As the coating, a release film type welded to a cylindrical outer frame (for example, Patent Document 1), or a coating formed integrally with a cylindrical outer frame via a peeling thin portion and peeling off with a pull ring ( For example, in addition to Patent Literature 2), a screw-type disk-shaped one that can also be used as an inverted table (for example, Patent Literature 3) is known.
[0004]
[Patent Document 1]
Published Japanese Utility Model Application No. 1-104144
[Patent Document 2]
JP-A-1-170236
[Patent Document 3]
JP-A-6-75396
[Problems to be solved by the invention]
The operation of co-injecting a drug into an infusion container is performed in a hospital ward immediately before administration to a patient or in a dispensing room or a nurse station.However, the conventional stopper is an elastic body once the coating is removed. The top surface remains exposed. Therefore, if the co-injection operation is performed at a place other than the ward, the top surface of the elastic body may be contaminated during transfer to the ward or during temporary storage, and in some cases, it may be necessary to perform a disinfection operation at the time of administration.
[0008]
Therefore, an object of the present invention is to provide a plug of an infusion container in which an elastic body can be easily sealed again with a cover after the cover is peeled off.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, a plug for an infusion container according to the present invention includes a tubular outer frame body whose base end is joined to an infusion container body, and a puncture needle inserted inside the tubular outer frame body. A cover formed integrally with the distal end surface of the cylindrical outer frame body through a cutting annular thin portion so as to hermetically seal the elastic body, and an operation of separating the cover body from the cylindrical outer frame body. A gripping portion provided on the covering body, and a reconnecting means for engaging the covering body with the cylindrical outer frame body so as to cover the elastic body with the covering body after the covering body is cut off. , And the recombining means includes an engaging portion and an engaged portion provided so as to mutually engage the cylindrical outer frame body and the covering body.
[0010]
By adopting such a configuration, the plug for an infusion container according to the present invention can be easily connected by a reconnecting unit after the cover is separated from the cylindrical outer frame.
[0011]
It is preferable that the thin portion is formed between the engaging portion and the engaged portion.
[0012]
The engagement between the engaging portion and the engaged portion may be engagement by uneven fitting or engagement by interference fitting.
[0013]
It is preferable that the convex portion of the concave-convex fitting is formed of a thermoplastic elastomer because the sealing property is improved.
[0014]
Further, a sealing elastic ring for sealing at the time of reconnection may be attached to at least one of the cylindrical outer frame and the covering.
[0015]
Further, the recombination means includes an opening edge formed in the cylindrical outer frame after the coating is cut off, and a recess formed in the coating so as to be able to engage with the opening edge. May be used.
[0016]
The grip portion may be formed by a flange-shaped portion also serving as an inverted table, or may be a pull ring.
[0017]
If the elastic body is fixed to the cylindrical outer frame, and the surface of the elastic body on the infusion container side is covered with a shielding film, it is necessary to avoid contact between the elastic body and the drug solution in the infusion container. Is advantageous.
[0018]
Further, it is preferable to cover the covering with the covering film such as a shrink film or a tape so as to indicate whether the covering has been cut off once or not.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Preferred embodiments of the present invention will be described below with reference to the drawings. Note that the same reference numerals are given to the same components throughout the drawings.
[0020]
First, a first embodiment of a plug for an infusion container (hereinafter, simply referred to as a “plug”) according to the present invention will be described with reference to FIGS. FIG. 1 is a plan view (a) and a partial longitudinal sectional view (b) showing a plug for an infusion container.
[0021]
In a plug 1 shown in FIG. 1, a cover 4 is integrally formed on a tubular outer frame 2 via an annular thin portion 3 for cutting. A grip portion 5 for gripping the cover 4 when separating the cover 4 from the cylindrical outer frame 2 is formed. The grip 5 has a flange shape in the illustrated example. Such a plug 1 can be a plastic molded body.
[0022]
A puncture needle insertion elastic body 6 as shown in FIG. 2 can be attached to the cylindrical outer frame 2. The elastic body 6 is fitted on the plastic support 7 and welded thereto. An outer peripheral groove 7a is formed on an outer peripheral surface of an end portion of the support member 7, while an inner peripheral edge portion 2a protruding inward is formed on an inner peripheral surface of an end portion of the cylindrical outer frame body 2, and the cylindrical outer frame body When the support 7 integrated with the elastic body 6 is pushed into the inner peripheral portion 2, the inner peripheral edge portion 2a is fitted into the outer peripheral groove 7a as shown in FIG. The outer surface (the surface on the side where the puncture needle is pierced) of the elastic body 6 fitted in the cylindrical outer frame body 2 in this manner is sealed by the cover 4 connected via the thin portion 3.
[0023]
The plug 1 separates the cover 4 and the cylindrical outer frame 2 from each other so that the elastic body 6 is sealed by the cover 4 after the cover 4 is separated from the cylindrical outer frame 2. A recombining means 8 for coupling is provided (see FIG. 1).
[0024]
The recombining means 8 has an engaging portion 9 provided on the side of the cover 4 via the thin portion 3 and an engaged portion 10 provided on the side of the cylindrical outer frame 2. In the illustrated example, as shown in an enlarged manner in FIG. 4, the engaging portion 9 is configured by a convex portion formed on the outer peripheral surface of the neck portion 11 coupled to the cover 4, and the engaged portion 10 The engaging portion 9 and the engaged portion 10 are formed in the vicinity of the thin portion 3 with the thin portion 3 interposed therebetween. Have been. The convex portion forming the engaging portion 9 may be a convex rib extending over the entire circumference of the neck portion 11, or may be provided with an intermittent or partial convex portion along the outer peripheral surface of the neck portion 11.
[0025]
As shown in FIG. 4, the engaging portion 9 has a tapered surface 12 that gradually becomes thinner toward the thinner portion 3. The tapered surface 12 is formed continuously with the convex portion forming the engaging portion 9, and after the thin portion 3 is cut off (see FIG. 5), the cylindrical outer frame 2 formed after the cut-off. The engaging portion 9 can be easily fitted into the opening of the base member.
[0026]
As shown in FIG. 8, the plug 1 having the above configuration is attached to the infusion container main body 14 by welding the flange portion 2b formed at the base end of the cylindrical outer frame 2 to the infusion container main body 14. In addition, the flange-shaped gripping portion 5 also functions as an inverted stand for making the infusion container 13 stand upright by an inverted body.
[0027]
In the infusion container provided with the plug 1 having the above-described configuration, the thin portion 3 is cut by gripping the tubular outer frame 2 and gripping and twisting the flange-shaped gripping portion 5, as shown in FIG. Then, the cover 4 is separated from the cylindrical outer frame 2.
[0028]
A puncture needle (not shown) is inserted through the puncture needle insertion elastic body 6, and a vial (not shown) containing a drug is communicated with the infusion container main body 14, the two drugs are mixed, and the infusion container main body is mixed. After the co-injection operation to shift to 14, the puncture needle is withdrawn from the elastic body 6 and the neck 11 of the covering 4 is pushed into the opening of the cylindrical outer frame 2 formed after the covering 4 is cut off. For example, as shown in FIGS. 6 and 7, the cover 4 can be engaged with the cylindrical outer frame 2 again by the reconnecting means 8.
[0029]
In order to further ensure the sealing of the elastic body 6, as shown in FIG. 9, the engagement portion 9 is enlarged before the separation (FIG. 9A) and after the reconnection (FIG. 9B). The constituent convex portions can be formed of a thermoplastic elastomer. The thermoplastic elastomer can be integrally molded with the plastic material forming the cover 4 and is preferable from the viewpoint of manufacturing.
[0030]
In addition, as shown in FIG. 9, a sealing elastic ring 15 may be attached to the outer peripheral portion of the neck portion 11 of the cover 4 separately from the engaging portion 9. In this case, it is preferable that the elastic ring 15 also employs a thermoplastic elastomer and is formed integrally with the neck 11 of the cover 4.
[0031]
The thin portion, the engaging portion and the engaged portion constituting the re-combining means are not limited to the example of the above-described embodiment, and various modes are possible. Will be explained. It should be noted that the following modifications of FIGS. 10 to 13 will be described with reference to the enlarged view similar to FIG. 4 or FIG.
[0032]
In the second embodiment shown in FIG. 10, a neck portion 11 is formed on the cylindrical outer frame body 2, and a thin portion 3 is formed at a joint between the neck portion 11 and the cover 4. The engaged portion 10 is constituted by a convex portion formed on the outer peripheral portion of the neck portion 11 and in the vicinity of the thin portion 3, while the engaging portion 9 is formed by a recess capable of inserting the neck portion 11 into the cover 4. The groove 16 is formed by an annular groove formed on the inner peripheral wall of the recess 16 so that these convex portions and the grooves can be fitted.
[0033]
As shown in FIG. 11, the thin portion 3 can be formed at a portion other than the end of the neck 11, and the engagement portion 9 and the engaged portion 10 can be formed on the neck 11. In the illustrated example, the engaging portion 9 is formed by an annular groove provided on the inner peripheral surface near the thin portion 3, while the engaged portion 10 is formed by a convex portion provided on the outer peripheral surface near the thin portion 3. Are formed so that they are fitted with each other.
[0034]
FIG. 12 shows an embodiment in which an engagement by interference fit is adopted as the reconnection means 10. In the example shown in FIG. 12, a thin portion 3 is formed at a joint between the cylindrical outer frame 2 and a neck 11 coupled to the covering 4. The outer diameter of the neck 11 is formed to be slightly larger than the diameter of the opening of the cylindrical outer frame 2 formed after the neck 11 is cut off. In the illustrated example, the outer diameter of the neck portion 11 is formed such that the outer diameter gradually increases as the distance from the thin portion 3 increases. Therefore, if the detached neck 11 is firmly inserted into the opening, the interference fit between the inner peripheral edge of the opening and the neck 11 provides a tight fit.
[0035]
FIG. 13 shows a modified form of the recombination means shown in FIG. 12, in which the thin portion 3 is formed at the joint between the cover 4 and the neck 11 coupled to the cylindrical outer frame 2, The body 4 has a recess 16 into which the detached neck 11 can be inserted. The outer diameter of the neck 11 is formed to be slightly larger than the inner diameter of the recess 16, and the neck 11 that has been cut off is firmly inserted into the recess 16 so that the neck 11 is engaged by interference fit. In the illustrated example, the outer diameter of the neck portion 11 is formed so as to gradually increase as the distance from the thin portion 3 increases.
[0036]
Next, a pull-ring type embodiment of the plug for an infusion container according to the present invention will be described. In this embodiment, the description of the elastic body is omitted.
[0037]
As shown in FIG. 14, a cover 4 is integrally formed on a cylindrical outer frame 2 via a thin portion 3, and a grip 5 formed by a pull ring is integrally formed on the cover 4. . The thin portion 3 is formed by forming an annular groove 3 a having a V-shaped cross section. When the thin portion 3 is cut off, a tapered surface is formed on the peripheral edge of the opening of the cylindrical outer frame 2. The cover 4 has an engaging portion 9 formed in the vicinity of the thin portion 3 in the form of an annular groove having a hook-like recess. The engaged portion 10 is provided after the thin portion 3 is cut off. It is constituted by the opening edge of the cylindrical outer frame 2. Therefore, when the separated cover 4 is pushed into the opening, the two are engaged with each other.
[0038]
Including the embodiment described above, in the plug according to the present invention, in order to guarantee the unopened of the cover before use, and in order to be able to determine whether the cover has been opened once, the cover and It can be covered with a covering film (not shown) such as a shrink film or a tape over the cylindrical outer frame.
[0039]
If it is not preferable for the elastic body 6 to come into contact with the liquid medicine in the infusion container, a shielding film (not shown) that does not allow the passage of the liquid medicine is provided on the surface of the elastic body 6 on the side of the infusion container body. Can be kept.
[Brief description of the drawings]
1 shows an embodiment of a plug for an infusion container according to the present invention, wherein FIG. 1 (a) is a plan view and FIG. 1 (b) is a partial longitudinal sectional view.
FIG. 2 is a partial longitudinal sectional view showing a state in which the plug of FIG. 1 and an elastic body attached to the plug are separated.
FIG. 3 is a partial cross-sectional view showing a state where the plug body and the elastic body of FIG. 2 are combined.
FIG. 4 is an enlarged sectional view showing a region A surrounded by a broken line in FIG. 2;
FIG. 5 is a partial cross-sectional view showing a state where a covering body is separated from a plug body equipped with the elastic body of FIG. 3;
FIG. 6 is a partial cross-sectional view showing the plug in a state in which the cover is rejoined to the cylindrical outer frame from the state shown in FIG. 5;
FIG. 7 is an enlarged sectional view showing a region B surrounded by a broken line in FIG. 6;
8 is a front view showing an infusion container in which the plug with an elastic body of FIG. 3 is joined to an infusion container main body.
FIG. 9 is an enlarged sectional view corresponding to FIG. 4, showing a modified embodiment of the plug according to the present invention before separation (FIG. 9 (a)) and after reconnection (FIG. 9 (b)).
FIG. 10 is an enlarged sectional view corresponding to FIG. 4, showing another modified embodiment of the plug according to the present invention.
FIG. 11 is an enlarged sectional view corresponding to FIG. 4 and showing still another modified embodiment of the plug according to the present invention.
FIG. 12 is an enlarged sectional view corresponding to FIG. 4 and showing still another modified embodiment of the plug according to the present invention.
FIG. 13 is an enlarged sectional view corresponding to FIG. 4 and showing still another modified embodiment of the plug according to the present invention.
FIG. 14 is an enlarged sectional view corresponding to FIG. 4 and showing still another modified embodiment of the plug according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Plug body 2 Cylindrical outer frame body 3 Thin part 4 Coating body 5 Gripping part 6 Elastic body 7 Supporting body 8 Recombination means 9 Engaging part 10 Engaged part 14 Infusion container main body 15 Elastic ring

Claims (11)

基端部を輸液容器本体に接合される筒状外枠体と、該筒状外枠体に内嵌される穿刺針挿通用弾性体を密閉するように前記筒状外枠体の先端面に切り離し用環状薄肉部を介して一体的に成形された被覆体と、該被覆体を前記筒状外枠体から切り離す操作のために前記被覆体に設けられた把持部と、前記被覆体を切り離した後に前記弾性体を前記被覆体によって被覆するために該被覆体を前記筒状外枠体に係合させる再結合手段と、を有し、
該再結合手段は、前記筒状外枠体と前記被覆体とを相互に係合するように設けられた係合部と被係合部とを備えることを特徴とする輸液容器用栓体。
A cylindrical outer frame body whose base end is joined to the infusion container main body, and a distal end surface of the cylindrical outer frame body so as to hermetically seal the puncture needle insertion elastic body fitted inside the cylindrical outer frame body. A cover integrally formed through the separating annular thin portion, a grip provided on the cover for an operation of separating the cover from the cylindrical outer frame, and separating the cover. Re-combining means for engaging the cover with the cylindrical outer frame to cover the elastic body with the cover after the
The plug for an infusion container, wherein the rejoining means includes an engaging portion and an engaged portion provided so as to mutually engage the cylindrical outer frame and the covering.
前記係合部と被係合部との間に前記薄肉部が形成されていることを特徴とする請求項1記載の輸液容器用栓体。The plug for an infusion container according to claim 1, wherein the thin portion is formed between the engaging portion and the engaged portion. 前記係合部と被係合部との係合が、凹凸嵌合による係合であることを特徴とする請求項1又は2記載の輸液容器用栓体。The plug for an infusion container according to claim 1 or 2, wherein the engagement between the engagement portion and the engaged portion is engagement by uneven fitting. 前記凹凸嵌合の凸部が、熱可塑性エラストマーにより形成されていることを特徴とする請求項3に記載の輸液容器用栓体。The plug for an infusion container according to claim 3, wherein the convex portion of the concave / convex fitting is formed of a thermoplastic elastomer. 前記筒状外枠体及び前記被覆体の少なくとも一方に、再結合時の密封のための密封用弾性リングが装着されていることを特徴とする請求項2記載の輸液容器用栓体。3. The plug for an infusion container according to claim 2, wherein a sealing elastic ring for sealing at the time of reconnection is attached to at least one of the cylindrical outer frame and the covering. 前記係合部と被係合部との係合が、締り嵌めによる係合であることを特徴とする請求項2記載の輸液容器用栓体。The plug for an infusion container according to claim 2, wherein the engagement between the engagement portion and the engaged portion is engagement by interference fit. 前記再結合手段が、前記被覆体の切り離し後に前記筒状外枠体に形成される開口縁部と、該開口縁部と係合し得るように前記被覆体に形成された凹所とにより構成されることを特徴とする請求項1記載の輸液容器用栓体。The recombination means includes an opening edge formed in the cylindrical outer frame after the coating is cut off, and a recess formed in the coating so as to be able to engage with the opening edge. The plug for an infusion container according to claim 1, wherein the plug is used. 前記把持部は、倒立台を兼ねる鍔状部により構成されていることを特徴とする請求項1〜7の何れかに記載の輸液容器用栓体。The plug for an infusion container according to any one of claims 1 to 7, wherein the grip portion is constituted by a flange portion also serving as an inverted table. 前記把持部は、プルリングであることを特徴とする請求項1〜7の何れかに記載の輸液容器用栓体。The plug for an infusion container according to any one of claims 1 to 7, wherein the grip is a pull ring. 前記筒状外枠体に前記弾性体を固定し、該弾性体の輸液容器側の面を遮蔽フィルムで被覆したことを特徴とする請求項1〜9の何れかに記載の輸液容器用栓体。The infusion container plug according to any one of claims 1 to 9, wherein the elastic body is fixed to the cylindrical outer frame, and the surface of the elastic body on the side of the infusion container is covered with a shielding film. . 前記被覆体と前記筒状外枠体とに渡り、シュリンクフィルム又はテープ等の被覆フィルムが被覆されていることを特徴とする請求項1〜10の何れかに記載の輸液容器栓体。The infusion container plug according to any one of claims 1 to 10, wherein a covering film such as a shrink film or a tape is covered over the covering body and the cylindrical outer frame body.
JP2002354758A 2002-12-06 2002-12-06 Plug for transfusion container Withdrawn JP2004182327A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102604234A (en) * 2012-02-07 2012-07-25 安徽双鹤药用包装有限公司 Dedicated material for outer cover of polypropylene combination cover of transfusion container and production method of dedicated material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102604234A (en) * 2012-02-07 2012-07-25 安徽双鹤药用包装有限公司 Dedicated material for outer cover of polypropylene combination cover of transfusion container and production method of dedicated material

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