JP6931516B2 - Plug with port - Google Patents

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JP6931516B2
JP6931516B2 JP2015186491A JP2015186491A JP6931516B2 JP 6931516 B2 JP6931516 B2 JP 6931516B2 JP 2015186491 A JP2015186491 A JP 2015186491A JP 2015186491 A JP2015186491 A JP 2015186491A JP 6931516 B2 JP6931516 B2 JP 6931516B2
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port
cap
plug
plug body
bag body
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JP2017060542A5 (en
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英明樹 川村
英明樹 川村
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Daikyo Seiko Ltd
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Daikyo Seiko Ltd
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Description

本発明は、輸液、透析液、臓器保存液、輸血用血液等の薬液が内蔵される医療用バッグ体の一辺に取り付けて使用されるポート付き栓体に関し、特に、該バッグ体との一体化が十分であり、キャップの栓体への被嵌が適切な上記ポート付き栓体に関する。 The present invention relates to a plug body with a port that is used by being attached to one side of a medical bag body containing a drug solution such as an infusion solution, a dialysate, an organ preservation solution, and blood for transfusion, and is particularly integrated with the bag body. The present invention relates to the above-mentioned plug body with a port, which is sufficient and the cap is properly fitted to the plug body.

上記のように医療用バッグ体に内蔵された各種の薬液は、上記のポートを経由し、上記の栓体(一般にゴム製のものが使用される)に突き刺された針から、可撓性のチューブを介して、使用箇所(患者の体内、研究用機器類内、その他)に送液される(例えば、特許文献1〜3等)。 As described above, the various chemicals contained in the medical bag body are flexible from the needle pierced into the plug body (generally made of rubber) via the port described above. The liquid is sent to the place of use (inside the patient's body, in research equipment, etc.) via the tube (for example, Patent Documents 1 to 3 and the like).

このような使用態様を有するポート付き栓体は、一般には、ポートを射出成形し、該ポートの一端に栓体を固定し、該栓体にポートとは別に射出成形されたキャップを被嵌して製造される。
そして、上記のような各種薬液を予め充填したバッグ体の開口部(例えば、薬液の充填口)を、前記ポートの非栓体側に固定(一体化)して、各種の医療分野において上記のような態様で使用される。
In a plug body with a port having such a usage mode, generally, the port is injection-molded, the plug body is fixed to one end of the port, and the plug body is fitted with a cap which is injection-molded separately from the port. Manufactured.
Then, the opening (for example, the filling port of the chemical solution) of the bag body pre-filled with various chemical solutions as described above is fixed (integrated) to the non-plug body side of the port, as described above in various medical fields. It is used in various aspects.

このような使用において、バッグ体とポートとが良好に一体化していないと、バッグ体とポートとの間から薬液が漏出し、薬液の無駄が生じるのみならず、バッグ体の周囲を汚染する。
また、ポートの非バッグ体側に装着されている栓体とキャップとの被嵌が不適切であれば、上記の針を栓体に突き刺す作業の際、あるいは薬液を上記の使用箇所に送液している途上でバッグ体内に他の薬液を注入する必要が生じ、上記の針とは別の針を栓体に突き刺す作業の際等に、キャップが栓体の周囲で不用意に動き、これらの作業を困難にする。
In such use, if the bag body and the port are not well integrated, the chemical solution leaks from between the bag body and the port, resulting in waste of the chemical solution and contaminating the surroundings of the bag body.
In addition, if the cap body attached to the non-bag body side of the port is improperly fitted, the above-mentioned needle is pierced into the plug body, or the chemical solution is sent to the above-mentioned place of use. During the process, it becomes necessary to inject another drug solution into the bag body, and the cap moves carelessly around the plug body when piercing the plug body with a needle other than the above needle, and these Make the work difficult.

特開平10−277132号公報Japanese Unexamined Patent Publication No. 10-277132 特開2004−130022号公報Japanese Unexamined Patent Publication No. 2004-130022 特開2009−148335号公報JP-A-2009-148335

本発明は、上記のような不具合を解消し、バッグ体とポートとの一体化を良好にすることができると共に、該ポートの非バッグ体側に装着する栓体に被嵌されるキャップと該栓体との嵌合を良好にすることができるポート付栓体を提供することを課題とする。 INDUSTRIAL APPLICABILITY The present invention can solve the above-mentioned problems, improve the integration between the bag body and the port, and the cap and the plug fitted to the plug body attached to the non-bag body side of the port. It is an object of the present invention to provide a plug body with a port which can be fitted well with a body.

本発明は、上記課題を解決するために、検討を重ねた結果、
(i)バッグ体と一体化させるポート部分(ポート先端部の外周)を、できるだけ平滑面とすること、
(ii)一方、キャップの栓体への被嵌は、キャップ内側壁面全面が栓体外側壁面全面に均一な力で行われていること、
が重要であるとの知見を得た。
The present invention has been studied in order to solve the above problems, and as a result, the present invention has been studied.
(I) Make the port portion (outer circumference of the port tip) integrated with the bag body as smooth as possible.
(Ii) On the other hand, the cap is fitted to the plug body with a uniform force on the entire inner wall surface of the cap and the entire outer wall surface of the plug body.
Was found to be important.

上記知見を下に更に検討を重ねた結果、先ず、ポートとキャップとは一般に別々に射出成形するが、
(iii)このとき粗面(凹凸)の最大要因となる射出成形用のゲート痕を、上記(i)については、ポートとバッグ体の一体化部分とは別の箇所に形成すれば、ゲート痕部分の平滑化加工が不要となり、極めて適切であることを見出した。
As a result of further studies based on the above findings, first, the port and cap are generally injection-molded separately.
(Iii) At this time, if the gate mark for injection molding, which is the largest factor of the rough surface (unevenness), is formed at a place different from the integrated portion of the port and the bag body for the above (i), the gate mark is formed. It was found that the smoothing process of the part became unnecessary and it was extremely suitable.

一方、キャップは、射出成形された上記ポートに栓体を装着した後、該栓体の所定箇所(一般には、栓体の外側壁面全面と天面の一部)に射出成形(すなわち、インサート成形)することにより、栓体への被嵌が完了するが、
(iv)このときの被嵌力を均一とするためには、キャップ射出成形時のゲートを上記箇所に沿って複数本を均等な間隔を設けて配置す(言い換えれば、キャップ成形後のゲート痕がキャップの外側壁面に、等間隔で複数個成形され)れば、キャップ成形時の射出圧が栓体の外側壁面全面に均等に掛かり、均等な被嵌力を得ることができるのみならず、予めポートに装着されている栓体に不均一な射出圧が掛かることによる射出成形途上で栓体のスリップは一切なく、適切な位置を保持してキャップが被嵌されると共に、ポートとキャップとの一体化も均一に良好に行われることを見出した。
On the other hand, the cap is injection-molded (that is, insert-molded) at a predetermined portion of the plug body (generally, the entire outer wall surface of the plug body and a part of the top surface) after the plug body is attached to the injection-molded port. ) Completes the fitting to the plug body,
(Iv) In order to make the fitting force uniform at this time, a plurality of gates at the time of cap injection molding are arranged at equal intervals along the above-mentioned points (in other words, gate marks after cap molding). Is molded on the outer wall surface of the cap at equal intervals), the injection pressure during cap molding is evenly applied to the entire outer wall surface of the plug, and not only can an even fitting force be obtained. There is no slippage of the plug during injection molding due to non-uniform injection pressure applied to the plug that is attached to the port in advance, and the cap is fitted while holding an appropriate position, and the port and cap It was found that the integration of the above was performed uniformly and well.

本発明のポート付き栓体は、以上の知見の下で開発されたもので、
(1)医療用バッグ体に一体化されて取り付けられるポートの非該バッグ体側先端部に、キャップが被嵌された栓体が取り付けられたポート付き栓であって、
射出成形されてなる前記ポートの、該射出成形の際のゲート痕が、前記バッグ体との一体化部以外で、かつ栓体との取付け部以外の箇所に形成されてなることを特徴とし、また
(2)射出成形されてなる前記キャップの、該射出成形の際のゲート痕が、該キャップの外側壁面に、等間隔で複数個形成されてなることをも特徴とする。
The plug body with a port of the present invention was developed based on the above findings.
(1) A plug with a port to which a cap with a cap is attached to the non-bag body side tip of the port that is integrated and attached to the medical bag body.
The port, which is injection-molded, is characterized in that the gate mark at the time of injection molding is formed at a place other than the integrated portion with the bag body and the attachment portion with the plug body. Further, it is also characterized in that (2) a plurality of gate marks of the injection-molded cap at the time of injection molding are formed on the outer wall surface of the cap at equal intervals.

本発明のポート付き栓体によれば、バッグ体と一体化させるポートを射出成形する際のゲートを、該バッグ体との一体化部以外であって、かつ栓体取付け部以外の箇所(例えば、栓体取付け部の下方部)に位置させ、この位置にゲート痕を形成させるため、該ポートとバッグ体との一体化部分にはゲート痕が形成されることはない。該一体化部分は、成形型の成形面(モールド面)が転写されることとなるため、該モールド面が平滑面であれば、高い平滑性を保持することとなる。
この結果、ポートとバッグ体とは平滑面での(溶融)一体化となり、両者は強固な溶融一体化を確保することができる。
よって、本発明のポート付き栓体を使用する薬液用バッグによれば、該バッグ内の薬液を所要箇所に注液する際や、薬液充填後のバッグ体の搬送の際等において、バッグ体とポートとの溶融一体化箇所から薬液が漏出すると言った事故の発生は皆無となる。
According to the plug body with a port of the present invention, the gate for injection molding the port to be integrated with the bag body is a portion other than the integrated portion with the bag body and the plug body mounting portion (for example,). , The lower part of the plug mounting portion), and a gate mark is formed at this position. Therefore, no gate mark is formed at the integrated portion between the port and the bag body. Since the molding surface (molding surface) of the molding mold is transferred to the integrated portion, if the molding surface is a smooth surface, high smoothness is maintained.
As a result, the port and the bag body are (melted) integrated on a smooth surface, and both can ensure strong fusion integration.
Therefore, according to the bag for chemicals using the stopper with a port of the present invention, when the chemicals in the bag are injected into a required place, or when the bag is transported after the chemicals are filled, the bag and the bag are used. There will be no accidents such as leakage of chemicals from the fusion point with the port.

また、本発明のポート付き栓体によれば、栓体に被嵌されたキャップの射出成形の際のゲート痕がキャップの外側壁面に、等間隔で複数個形成されているため、言い換えれば、栓体を装着したポートの栓体部分にキャップを射出成形(インサート成形)により被嵌させる際のゲートを、キャップの外側壁面に沿って等間隔で複数本配置するため、次のような効果を得ることができる。
(α)キャップ成形時の射出圧がキャップの外側壁面全体に均等にかかり、この射出圧はキャップ体を介して栓体の外側壁全面にも均等に掛かり、均等な被嵌力で栓体を被嵌することができる。
(β)ポートに装着されている栓体にも、上記のようにキャップを介して均一な射出圧が掛かるため、射出成形の途上で、栓体の外側壁面に不均一な射出圧が掛かることによる栓体のポート装着部におけるランダムな方向へのスリップは一切生じること無く、栓体は適切な位置を保持して、かつ良好な被嵌力により、キャッピングされることが可能となる。
(γ)キャップとポートとの一体化が、適切な位置で、均一に、良好に行うことができる。
よって、本発明のポート付き栓体を使用する薬液用バッグによれば、栓体へのキャップの被嵌操作自体が良好となるのみならず、結果としてキャップの栓体への被嵌が確実に行われ、例えば、針を栓体に突き刺す作業の際等に、キャップが栓体の周囲で不用意に動くと言った不都合は皆無となる。
Further, according to the plug body with a port of the present invention, a plurality of gate marks at the time of injection molding of the cap fitted to the plug body are formed on the outer wall surface of the cap at equal intervals. Since a plurality of gates for fitting the cap to the plug body part of the port to which the plug body is mounted by injection molding (insert molding) are arranged at equal intervals along the outer wall surface of the cap, the following effects are obtained. Obtainable.
(Α) The injection pressure during cap molding is evenly applied to the entire outer wall surface of the cap, and this injection pressure is evenly applied to the entire outer wall surface of the plug body via the cap body, and the plug body is pressed with an even fitting force. Can be fitted.
Since a uniform injection pressure is also applied to the plug body attached to the (β) port through the cap as described above, an uneven injection pressure is applied to the outer wall surface of the plug body during injection molding. The plug body can be capped by holding an appropriate position and having a good fitting force without any slippage in a random direction at the port mounting portion of the plug body.
(Γ) The integration of the cap and the port can be performed uniformly and satisfactorily at an appropriate position.
Therefore, according to the chemical solution bag using the plug body with a port of the present invention, not only the operation itself of fitting the cap to the plug body is good, but also the fitting of the cap to the plug body is surely performed. This is done, for example, when the needle is pierced into the plug body, there is no inconvenience that the cap moves carelessly around the plug body.

本発明のポート付き栓体の使用態様例を説明するための図である。It is a figure for demonstrating the usage example of the plug body with a port of this invention. (A)が本発明のポート付き栓体におけるポート部の一実施態様例を説明するための図であり、(B)が栓体に被嵌されるキャップ部の一実施態様例を説明する図である。(A) is a diagram for explaining an embodiment of a port portion in a plug body with a port of the present invention, and (B) is a diagram for explaining an embodiment example of a cap portion fitted on the plug body. Is. 本発明のポート付き栓体の構成の一実施態様例を説明するための断面図である。It is sectional drawing for demonstrating one Embodiment example of the structure of the plug body with a port of this invention.

本発明のポート付き栓体1は、図1に示すように、バッグ体Bの一辺の略中央部に設けられている開口部B1に、該栓体1のポート部2の一端部近傍2Bが一体化されて取り付けられる。
このポート部2の他端部(すなわち、非バッグ体B側端)に栓体(例えば、天然ゴムや合成ゴムからなる所謂ゴム栓)3が取り付けられ、該ゴム栓3にキャップ4が被嵌されている。
In the plug 1 with a port of the present invention, as shown in FIG. 1, an opening B1 provided at a substantially central portion of one side of the bag body B has a 2B near one end of the port portion 2 of the plug 1. It is integrated and attached.
A stopper (for example, a so-called rubber stopper made of natural rubber or synthetic rubber) 3 is attached to the other end of the port portion 2 (that is, the end on the non-bag body B side), and the cap 4 is fitted to the rubber stopper 3. Has been done.

上記のバッグ体Bと、本発明のポート付き栓体1のポート部2との一体化は、例えば、バッグ体Bの開口部B1の構成材と、ポート部2の構成材との溶融により行われる。
このような一体化を確実にするためには、バッグ体Bの開口部B1の構成材とポート部2の構成材とが確実に溶融し合う必要があり、そのためには、溶融を阻害する要因があってはならない。
The integration of the bag body B and the port portion 2 of the plug body 1 with a port of the present invention is performed, for example, by melting the constituent material of the opening B1 of the bag body B and the constituent material of the port portion 2. Be told.
In order to ensure such integration, it is necessary to ensure that the constituent material of the opening B1 of the bag body B and the constituent material of the port portion 2 are melted together, and for that purpose, a factor that hinders the melting. There should be no.

そこで、本発明では、ポート部2を射出成形する際のゲートを、上記の一体化部分2B以外の箇所に位置させ、ゲート痕を、一体化部分2Bには形成させない手法を採用する。
すなわち、図2(A)に一実施態様例を示すように、ポート部2の、ゴム栓3取付け部以外の部分、本例ではゴム栓3取付け部より下方部、すなわち図1に示すように、キャップ4被嵌部より下方部であってバッグ体Bとの一体化部分2Bより上方部に、該ポート部2を射出成形する際のゲート(図示省略)を位置させ、該部にゲート痕2Gが形成されるようにする。
Therefore, in the present invention, a method is adopted in which the gate for injection molding the port portion 2 is positioned at a position other than the integrated portion 2B, and the gate mark is not formed on the integrated portion 2B.
That is, as shown in FIG. 2A, a portion of the port portion 2 other than the rubber stopper 3 attachment portion, in this example, a portion below the rubber stopper 3 attachment portion, that is, as shown in FIG. , A gate (not shown) for injection molding the port portion 2 is positioned below the fitting portion of the cap 4 and above the integrated portion 2B with the bag body B, and a gate mark is formed on the portion. Allow 2G to be formed.

なお、図2(A)の態様例では、ポート部2は、バッグ体B(図1参照)と溶着させる第1ストレート部2s1と、装着される栓体3(図1参照)の底部を受ける第1フランジ部2f1と、該第1フランジ部2f1の外周に突出している第2フランジ部2f2と、該第2フランジ部2f2の下方に位置して該第2フランジ部2f2より小径であるが上記第1フランジ部2f1よりも大径又は同径の第3フランジ部2f3と、上記第1フランジ部2f1の上方に突き出て栓体3の底部に形成されている底溝(図3の3c1参照)と嵌り合う円環状突起2pと、上記第3フランジ部2f3の下方に位置し、上記第1ストレート部2s1より大径の第2ストレート部2s2と、該第2ストレート部2s2と上記第1ストレート部2s1を連結するテーパー部2tとからなる。 In the example of the aspect of FIG. 2A, the port portion 2 receives the first straight portion 2s1 to be welded to the bag body B (see FIG. 1) and the bottom portion of the stopper body 3 (see FIG. 1) to be attached. The first flange portion 2f1, the second flange portion 2f2 protruding from the outer periphery of the first flange portion 2f1, and the second flange portion 2f2 are located below the second flange portion 2f2 and have a smaller diameter than the second flange portion 2f2. A third flange portion 2f3 having a diameter larger than or the same diameter as the first flange portion 2f1 and a bottom groove formed at the bottom of the plug 3 protruding above the first flange portion 2f1 (see 3c1 in FIG. 3). An annular protrusion 2p that fits with the second straight portion 2p, a second straight portion 2s2 that is located below the third flange portion 2f3 and has a diameter larger than that of the first straight portion 2s1, the second straight portion 2s2, and the first straight portion. It is composed of a tapered portion 2t that connects 2s1.

本例では、上記ゲート痕2Gは、上記第2ストレート部2s2の適宜位置に形成されている。
もちろん、本発明において、上記のゲート痕2Gは、上記の第2ストレート部2s2の位置に限定されず、バッグ体Bとの溶融一体化部以外の位置であれば、テーパー部2tの位置であっても、第1ストレート部2s1の位置であっても、第1,第2,第3フランジ部2f1,2f2,2f3の位置であっても、円環状突起部2pの位置であってもよい。
In this example, the gate mark 2G is formed at an appropriate position of the second straight portion 2s2.
Of course, in the present invention, the gate mark 2G is not limited to the position of the second straight portion 2s2, and is the position of the tapered portion 2t if it is a position other than the melt-integrated portion with the bag body B. It may be the position of the first straight portion 2s1, the position of the first, second, and third flange portions 2f1, 2, f2, 2f3, or the position of the annular protrusion portion 2p.

これらの位置のいずれかにゲート痕2Gが形成されれば、図1に示すように、ポート部1のバッグ体Bとの溶融一体化部分2Bは、ポート部2の射出成形の際のモールド面(図示省略)が転写されることとなり、該モールド面を予め平滑化しておけば、溶融一体化の際の不都合な要因となる粗面になることはない。
なお、上記のゲート痕2Gは、ポート部2が良好に射出成形されればよいのであるから、1個でも複数個であってもよく、複数個にする場合は、等間隔であってもよいし、ランダムな間隔であってもよいし、上下に千鳥配置状態等にしてもよいことは言うまでもない。
If a gate mark 2G is formed at any of these positions, as shown in FIG. 1, the melt-integrated portion 2B of the port portion 1 with the bag body B has a mold surface during injection molding of the port portion 2. (Not shown) will be transferred, and if the mold surface is smoothed in advance, it will not become a rough surface which is an inconvenient factor at the time of fusion and integration.
It should be noted that the gate marks 2G may be one or a plurality of the gate marks 2G as long as the port portion 2 is satisfactorily injection-molded. However, it goes without saying that the intervals may be random, or the staggered arrangement may be performed vertically.

また、図1に示す本発明のポート付き栓体1におけるキャップ4は、図2(B)に一実施態様例を示すように、該キャップ4を射出成形する際のゲート(図示省略)を、キャップ4の外側壁部(すなわち外周面)に位置させ、該部にゲート痕4Gが形成されるようにする。 Further, the cap 4 in the plug 1 with a port of the present invention shown in FIG. 1 has a gate (not shown) when the cap 4 is injection-molded, as shown in FIG. 2 (B). It is located on the outer wall portion (that is, the outer peripheral surface) of the cap 4 so that the gate mark 4G is formed in the portion.

なお、図2(B)の態様例(図3を合わせて参照)では、キャップ4は、前記ポート部2の第3フランジ部2f3の下端から第2フランジ部2f2および第1フランジ部2f1の上端よりやや下部に至るまでの(ポート部2)側面を覆う長さを有するフランジ部4fと、前記ポート部2の第1フランジ部2f1の底部2f1bから栓体3の側面および栓体3の天面までの側壁部4wと、該側壁部4wの上端部から栓体3天面側に伸びる環状の屋根部4rと、該屋根部4rの下端部から栓体3の天面に設けられた天溝3c2に嵌り合うまでの突起部4pとからなる。 In the example of the aspect of FIG. 2B (see also FIG. 3), the cap 4 has the cap 4 from the lower end of the third flange portion 2f3 of the port portion 2 to the upper end of the second flange portion 2f2 and the first flange portion 2f1. A flange portion 4f having a length covering the side surface (port portion 2) extending to a slightly lower portion, and a side surface of the plug body 3 and a top surface of the plug body 3 from the bottom portion 2f1b of the first flange portion 2f1 of the port portion 2 The side wall portion 4w up to, the annular roof portion 4r extending from the upper end portion of the side wall portion 4w to the top surface side of the plug body 3, and the top groove provided on the top surface of the plug body 3 from the lower end portion of the roof portion 4r. It is composed of a protrusion 4p until it fits into 3c2.

本例では、上記のゲート痕4Gは、前記したように、該ゲート痕4Gの基になるゲートからのキャップ4用樹脂の射出圧を、キャップ4全体、延いては栓体3の外側壁面全面に渡って均一になるようにする作用を得るためのものであるから、キャップ4の側壁部4wの外側である外側壁部(外周面)に形成させている。
もちろん、射出圧が栓体3の外側壁面全面に渡って均一になる結果として、キャップの射出成形の際、言い換えればキャッピング操作の際に、栓体3がランダムな方向にスリップすることはなく、栓体3の所定の位置でのキャッピングを完了することができる。
また、このような均一な被嵌力発現作用と滑り防止作用を良好に得る上で、ゲート痕4Gは、1個よりは複数個が好ましく、複数個の場合は、ランダムな間隔よりも、等間隔で形成されていることが好ましい。
本例では、4個のゲート痕4G,4G,4G,4Gを等間隔でキャップ4の外側壁部に設けている。
In this example, as described above, the gate mark 4G applies the injection pressure of the resin for the cap 4 from the gate on which the gate mark 4G is based to the entire cap 4 and the entire outer wall surface of the plug 3. It is formed on the outer wall portion (outer peripheral surface) which is the outer side of the side wall portion 4w of the cap 4 because it is intended to obtain the action of making the cap 4 uniform.
Of course, as a result of the injection pressure becoming uniform over the entire outer wall surface of the plug body 3, the plug body 3 does not slip in a random direction during injection molding of the cap, in other words, during the capping operation. Capping of the plug 3 at a predetermined position can be completed.
Further, in order to obtain such a uniform fitting force expression action and anti-slip action satisfactorily, the number of gate marks 4G is preferably a plurality rather than one, and in the case of a plurality of gate marks, the interval is more than a random interval. It is preferably formed at intervals.
In this example, four gate marks 4G, 4G, 4G, and 4G are provided on the outer wall portion of the cap 4 at equal intervals.

図3は、図2(A)に示す第2ストレート部2s2にゲート痕2Gを形成させたポート部2の、第1フランジ部2f1の上方に突き出ている円環状突起2pに、栓体3を、該栓体3の底溝3c1を嵌め合わせて装着し、該栓体3にキャップ4を被嵌させた一実施態様例を説明するための断面図である。
本例では、キャップ4は、栓体3の上記天溝3c2設置個所から栓体3の側面を通り、上記ポート部2の第3フランジ部2f3の下端に至るまでを覆うように、栓体3およびポート部2の一部(第1〜第3フランジ部2f1〜2f3)に被嵌させている。
FIG. 3 shows the plug body 3 on the annular protrusion 2p protruding above the first flange portion 2f1 of the port portion 2 in which the gate mark 2G is formed on the second straight portion 2s2 shown in FIG. 2 (A). It is a cross-sectional view for demonstrating an embodiment example in which the bottom groove 3c1 of the plug body 3 is fitted and attached, and the cap 4 is fitted to the plug body 3.
In this example, the cap 4 passes through the side surface of the plug 3 from the location where the top groove 3c2 is installed in the plug 3, and covers the port 3 up to the lower end of the third flange 2f3 of the port 2. And a part of the port portion 2 (first to third flange portions 2f1 to 2f3) is fitted.

本発明におけるポート付き栓体は、図3に示す態様となる前に、ポート部2の第1フランジ部2f1の上部に上記したようにして栓体3を装着し、次いで、これを図示しないインサート成形機内にセットし、キャップ4を射出成形して、図3に示す態様とする。
上記の射出成形の際に、ゲート(図示省略)は、キャップ4の外側壁面に沿って本例では等間隔に4本配置する。これら等間隔に配置された4本のゲートからキャップ4用の樹脂が射出されるため、キャップ4は、栓体の外側壁全面に渡って均等な射出圧により成形される。よって、キャップ4は、均等な被嵌力により、栓体3をキャッピングすることができる。
また、このキャッピングの際に、栓体3には、その外側壁面全面に均一な射出圧が掛かるため、キャップ4の射出成形の途上で、栓体3が装着部においてランダムな方向にスリップするような不具合は一切生じない。よって、栓体3は適切な位置を保持して、かつ良好な被嵌力により、キャッピングされる。
さらに、上記のキャッピングの際に、もちろんキャップ4とポート部2との一体化も、適切な位置で、均一に、良好に行うことができる。
In the plug body with a port in the present invention, the plug body 3 is mounted on the upper portion of the first flange portion 2f1 of the port portion 2 as described above before the embodiment shown in FIG. It is set in a molding machine, and the cap 4 is injection-molded to obtain the embodiment shown in FIG.
At the time of the above injection molding, four gates (not shown) are arranged along the outer wall surface of the cap 4 at equal intervals in this example. Since the resin for the cap 4 is injected from these four gates arranged at equal intervals, the cap 4 is molded with an even injection pressure over the entire outer wall of the plug body. Therefore, the cap 4 can cap the plug body 3 with an even fitting force.
Further, during this capping, a uniform injection pressure is applied to the entire outer wall surface of the plug body 3, so that the plug body 3 slips in a random direction at the mounting portion during the injection molding of the cap 4. No problems occur. Therefore, the plug body 3 is capped by holding an appropriate position and having a good fitting force.
Further, at the time of the above capping, of course, the cap 4 and the port portion 2 can be integrated uniformly and satisfactorily at an appropriate position.

以上のように構成される本発明のポート付き栓体1は、ポート部2の第1〜第3フランジ部2f1〜2f3の上方に栓体3が装着され、これらのフランジ部2f1〜2f3と栓体3とがキャップ4により、適正位置で、かつ強固に被嵌されており、このような状態で、図1に示すように、ポート部2において、薬液等が充填されるバッグ体Bとの溶着一体化で取り付けられて使用される。
このバッグ体Bへの取り付けの際はもとより、あるいは薬液が充填されバッグ体Bの搬送の際、バッグ体B内の薬液等の患者の体内や研究用機器類等の使用箇所への送液の際等において、ポート付き栓体1がバッグ体Bから脱落したり、部分的に剥離したり、あるいはキャップ4が栓体3から脱落すると言った事故は一切発生しない。
In the plug body 1 with a port of the present invention configured as described above, the plug body 3 is mounted above the first to third flange portions 2f1 to 2f3 of the port portion 2, and these flange portions 2f1 to 2f3 and the plug are plugged. The body 3 is firmly fitted to the body 3 by the cap 4 at an appropriate position, and in such a state, as shown in FIG. 1, the port portion 2 is fitted with the bag body B filled with a chemical solution or the like. It is used by being attached by welding integration.
When attaching to the bag body B, or when transporting the bag body B filled with the chemical solution, the liquid is sent to the patient's body such as the chemical solution in the bag body B or to the place of use such as research equipment. At times, there is no accident in which the plug 1 with a port falls off from the bag body B, is partially peeled off, or the cap 4 falls off from the plug 3.

1 ポート付き栓体
2 ポート部
3 栓体
4 キャップ
G,4G ゲート痕
1 Plug with port 2 Port 3 Plug 4 Cap
2 G, 4G gate mark

Claims (1)

医療用バッグ体に一体化されて取り付けられるポートの非該バッグ体側先端部に、キャップが被嵌された栓体が取り付けられたポート付き栓であって、
前記ポートが横断面円形の筒状を呈し、該筒状ポートの一端が前記バック体に一体化され、他端に前記栓体が取り付けられ、
射出成形されてなる前記ポートの、該射出成形の際の未平滑化処理ゲート痕が、前記バッグ体との一体化部以外で、かつ栓体との取付け部以外の箇所に形成され
射出成形されてなる前記キャップの、該射出成形の際の未平滑化処理ゲート痕が、該キャップの外側壁面に、等間隔で複数個形成されてなることを特徴とするポート付き栓体。
A plug with a port to which a cap with a cap is attached to the non-bag body side tip of the port that is integrated and attached to the medical bag body.
The port has a cylindrical shape with a circular cross section, one end of the tubular port is integrated with the back body, and the plug body is attached to the other end.
The unsmoothed gate mark at the time of the injection molding of the injection-molded port is formed at a place other than the integrated portion with the bag body and the attachment portion with the plug body .
A plug body with a port, characterized in that a plurality of unsmoothed gate marks at the time of injection molding of the injection-molded cap are formed on the outer wall surface of the cap at equal intervals.
JP2015186491A 2015-09-24 2015-09-24 Plug with port Active JP6931516B2 (en)

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JPS6389159A (en) * 1986-10-02 1988-04-20 テルモ株式会社 Medical container
JPH06320644A (en) * 1993-05-13 1994-11-22 Material Eng Tech Lab Inc Production of plastic container having port
JPH08131518A (en) * 1994-11-11 1996-05-28 Material Eng Tech Lab Inc Container incorporating flexible pipe and manufacture thereof
JP3743041B2 (en) * 1995-12-11 2006-02-08 株式会社エンプラス Fuel pump impeller
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JP2012100824A (en) * 2010-11-09 2012-05-31 Torque Seimitsu Kogyo Kk Integrated port for infusion solution bag, and method of manufacturing the same
JP2014027980A (en) * 2012-07-31 2014-02-13 Torque Seimitsu Kogyo Kk Medical elastomer elastic plug body, elastomer plug having plug body and cap integrated by deposition and method for manufacturing the same

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