JP2007307302A - Connector for connection part between medical tube and connection part of medical instrument to be connected to medical tube - Google Patents

Connector for connection part between medical tube and connection part of medical instrument to be connected to medical tube Download PDF

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JP2007307302A
JP2007307302A JP2006141851A JP2006141851A JP2007307302A JP 2007307302 A JP2007307302 A JP 2007307302A JP 2006141851 A JP2006141851 A JP 2006141851A JP 2006141851 A JP2006141851 A JP 2006141851A JP 2007307302 A JP2007307302 A JP 2007307302A
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medical
connector
tube
connection part
lumen
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JP4882507B2 (en
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Takehiko Yuki
毅彦 幸
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JMS Co Ltd
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JMS Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector, wherein a continuous internal liquid flow passage can be formed without neither a gap nor a step concerning the connector, the connection part of a medical instrument, and a medical tube when the medical tube is connected to the connection part of the medical instrument with the use of the connector. <P>SOLUTION: The connector includes: an inner cavity where the medical tube 1 and the connection part 5 of the medical instrument to be connected to the medical tube so as to allow a liquid to pass are inserted; and an erected wall 31 for stopping the respective distal ends of the medical tube 1 and the connection part 5 of the medical instrument which are inserted to the inner cavity. The erected wall 31 includes a tapered inner cavity surface 41, which is enlarged from a tube insertion side to the side of the connection part 5 of the medical instrument. The erected wall 31 of the connector 21 connecting the medical tube 1 to the medical instrument includes a projection part which is arranged on the side surface at the insertion side of the connection part of the medical instrument. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は輸液セット、輸血セットあるいは血液回路等の医療用器具の連結部と医療用チューブとを連結するために使用するコネクターに関する。   The present invention relates to a connector used for connecting a medical tube and a connecting portion of a medical instrument such as an infusion set, a blood transfusion set, or a blood circuit.

医療用チューブと該医療用チューブと連結される輸液セット、輸血セット、血液回路等の医療用器具の連結部を連結するコネクターにより前記各部材を連結した場合、これら部材の連結された内腔面に段差があると該段差に薬品や血液が滞留し、血液が滞留し、血液の凝固、微量薬液の注入不足等を起こし、また、該コネクターが透明性なものである場合、見た目にも残留した血液や薬品が見えるため患者や医療従事者に不快感を与える。   When each member is connected by a connector for connecting a medical tube and a connector of a medical device such as an infusion set, a blood transfusion set, and a blood circuit connected to the medical tube, the lumen surfaces to which these members are connected If there is a step, chemicals or blood will stay in the step, blood will stay, causing blood coagulation, insufficient injection of a trace amount of drug solution, etc., and if the connector is transparent, it will remain visually Discomfort for patients and health care workers due to visible blood and chemicals.

チューブ接続部と医療用器具接続部を備えた医療用コネクターであって、該コネクターは先端から後端部まで延びる内部通路を有し、かつ前記後端部は医療用器具接続用のルアーテーパー部を形成した医療用コネクターは知られている（特許文献１）。しかしながら、該医療用コネクターはチューブと医療用器具接続部を連結した際にコネクター内腔面と医療用器具接続部の内腔面の間に隙間および段差の無い連続した内腔面を形成可能なものではなかった。
特開２０００−２４５８５１号公報 A medical connector having a tube connection portion and a medical device connection portion, the connector having an internal passage extending from the front end to the rear end portion, and the rear end portion being a luer taper portion for connecting a medical device A medical connector in which is formed is known (Patent Document 1). However, the medical connector can form a continuous luminal surface without a gap and a step between the luminal surface of the connector and the medical instrument connection part when the tube and the medical instrument connection part are connected. It was not a thing.
JP 2000-245851 A

本発明は、輸液セット、輸血セットあるいは血液回路等の医療用器具の連結部と医療用チューブとを連結する際、前記両者の接合部またはその近傍において隙間や段差の生じ難い、例えば前記両者の内径が異なる場合であっても、その接合部または近傍において隙間や段差の生じ難いコネクターを提供することにある。   In the present invention, when connecting a medical tube and a connecting portion of a medical instrument such as an infusion set, a blood transfusion set, or a blood circuit, a gap or a step is unlikely to occur at or near the joint portion. Even if the inner diameters are different, it is an object of the present invention to provide a connector that is less likely to cause a gap or a step at or near the joint.

本発明は医療用チューブならびに該医療用チューブと通液可能に連結される医療用器具の連結部が挿入される内腔、および該内腔内に挿入される前記医療用チューブと医療用器具の連結部の各先端部を停止する立設壁を有し、かつ該立設壁はチューブ挿入側から医療用器具の連結部側に向かって拡大したテーパー状の内腔面を形成した医療用チューブと医療用器具を連結したコネクターにおいて、前記立設壁が医療用器具の連結部が挿入される側の側面に突起部を有することを特徴とするコネクターを提供することにより、前記技術課題を解決することができた。   The present invention relates to a medical tube, a lumen into which a connecting portion of a medical device connected to the medical tube so as to allow liquid to pass, and the medical tube and the medical device to be inserted into the lumen. A medical tube having a standing wall that stops each distal end of the connecting portion, and the standing wall has a tapered lumen surface that expands from the tube insertion side toward the connecting portion side of the medical device. In the connector in which the medical device is connected, the above-mentioned technical problem is solved by providing a connector in which the standing wall has a protruding portion on a side surface on which the connecting portion of the medical device is inserted We were able to.

以下、本発明を具体的に説明する。
図１に示すコネクター２は、医療用合成樹脂チューブ１と該医療用合成樹脂チューブ１と通液可能に連結される医療用器具の連結部５が挿入される内腔、および該内腔内に挿入された医療用チューブ１と医療用器具の連結部５の各先端部を停止する立設壁３を有して構成されるものであり、立設壁３の内腔面４がチューブ挿入側から医療用器具の連結部側に向かって拡大したテーパー状の内腔面４を形成されているのでコネクター２の内腔内に挿入された医療用チューブ１と医療用器具の連結部５、および立設壁３で構成される液通路である内腔は比較的に段差部、あるいは血液の滞留部が少ないものではあるが、立設壁３と医療用器具の連結部１５の先端部の間に間隙７が形成され、該間隙７が液体の滞留部となったり、あるいは液体の流れを阻害してしまう、という問題があった。 The present invention will be specifically described below.
A connector 2 shown in FIG. 1 includes a medical synthetic resin tube 1, a lumen into which the medical synthetic resin tube 1 is connected to the medical synthetic resin tube 1 so as to allow liquid to pass therethrough, and the lumen. It has a standing wall 3 that stops each distal end portion of the connecting portion 5 between the inserted medical tube 1 and the medical instrument, and the lumen surface 4 of the standing wall 3 is on the tube insertion side. Since the tapered lumen surface 4 that is enlarged from the medical device toward the connecting portion side of the medical device is formed, the medical tube 1 inserted into the lumen of the connector 2 and the connecting portion 5 of the medical device, and The lumen, which is a liquid passage formed by the standing wall 3, has a relatively small stepped portion or a blood retaining portion, but between the standing wall 3 and the distal end portion of the connecting portion 15 of the medical instrument. A gap 7 is formed in the gap, and the gap 7 becomes a liquid retention portion or the liquid flow. It would inhibit, there is a problem in that.

これに対して本発明のコネクターは、図２に示すように医療用チューブ１ならびに該医療用チューブ１と通液可能に連結される医療用器具の連結部５を停止する立設壁３１が医療用器具の連結部５が挿入される側の側面、好ましくは立設壁４１のテーパー状底面の近傍の側面に突起部６を有することを特徴とする。   On the other hand, as shown in FIG. 2, the connector according to the present invention has a medical tube 1 and a standing wall 31 for stopping the connecting portion 5 of the medical instrument connected to the medical tube 1 so as to allow liquid to pass through. The protrusion 6 is provided on the side surface on the side where the connecting portion 5 of the appliance is inserted, preferably on the side surface in the vicinity of the tapered bottom surface of the standing wall 41.

前記突起部６としては、コネクター２１の内腔内に挿入された医療用器具の連結部５の先端の押圧により変形して前記立設壁と医療用器具の連結部の内腔面を隙間と段差の無い連続内腔面を形成できる特性を有するものが好ましく、該特性は突起部の弾性、硬さ、あるいは可撓性等の力学的性質、大きさ、形状あるいは形成位置等の要件を考慮することによって付与することができる。   The protrusion 6 is deformed by pressing the distal end of the connecting portion 5 of the medical instrument inserted into the lumen of the connector 21 so that the inner wall surface of the standing wall and the connecting portion of the medical instrument is a gap. It is preferable to have a characteristic that can form a continuous lumen surface without a step, and the characteristic takes into consideration the requirements such as the elasticity, hardness, flexibility, and other mechanical properties, size, shape, and formation position of the protrusion. It can be given by doing.

本発明のコネクターによって医療用器具の連結部と連結される合成樹脂チューブとしては可撓性のある合成樹脂チューブ、例えば軟質ポリ塩化ビニル樹脂のチューブが挙げられ、これら合成樹脂チューブと連結される医療用器具の連結部としては、例えば針、点滴筒、混注器、三方活栓等の医療用器具の管状連結部が挙げられる。   Examples of the synthetic resin tube connected to the connecting portion of the medical instrument by the connector of the present invention include a flexible synthetic resin tube, for example, a soft polyvinyl chloride resin tube, and a medical device connected to these synthetic resin tubes. As a connection part of the instrument, the tubular connection part of medical instruments, such as a needle | hook, a drip tube, a co-injector, a three-way stopcock, is mentioned, for example.

また、本発明のコネクターとしては、該内腔内に挿入される合成樹脂チューブとの密着性が高く、かつ合成樹脂チューブより硬質の樹脂で構成されたものが、該コネクターと合成樹脂チューブとの接着性が向上して好ましい。例えば前記コネクター２は医療用チューブ１が軟質ポリ塩化ビニル樹脂である場合には、該軟質ポリ塩化ビニル樹脂より硬質の同種類の樹脂、例えば硬質のポリ塩化ビニル樹脂で構成されたものが接着性が大きくなり好ましい。さらに、該コネクターの硬度は、該コネクターの内腔内に挿入される医療用器具の連結部の硬度に比較して小さく、かつ該医療用器具の連結部の先端部によって変形して、前記立設壁と医療用器具の連結部の内腔面を隙間と段差の無い連続内腔面とすることができるものが好ましい。   The connector of the present invention has a high adhesion to the synthetic resin tube inserted into the lumen and is made of a resin harder than the synthetic resin tube. The adhesiveness is improved, which is preferable. For example, when the medical tube 1 is made of a soft polyvinyl chloride resin, the connector 2 is made of the same kind of resin that is harder than the soft polyvinyl chloride resin, such as a hard polyvinyl chloride resin. Is preferable. Further, the hardness of the connector is smaller than the hardness of the connecting portion of the medical instrument inserted into the lumen of the connector and is deformed by the distal end of the connecting portion of the medical instrument, so that the vertical It is preferable that the lumen surface of the connecting portion between the wall and the medical device can be a continuous lumen surface having no gap and no step.

本発明のコネクターを使用することにより、医療用チューブと医療用器具の連結部を段差を形成することなく連結できるので、該コネクターの内腔前記連結部に薬品や血液が滞留し、血液が滞留し、血液の凝固、医薬品の不連続な投与を起こしてしまうことがなく、また、該コネクターが透明性なものである場合でも残留した血液や薬品による患者や医療従事者に不快感を与えることがなく、かつ医療用チューブと医療用器具の管状連結部を両者が離脱することがないように強固に連結可能である。   By using the connector of the present invention, the connecting portion between the medical tube and the medical instrument can be connected without forming a step, so that the medicine and blood stay in the connecting portion in the lumen of the connector, and the blood stays there. In addition, blood coagulation and discontinuous administration of pharmaceuticals will not occur, and even if the connector is transparent, it will cause discomfort to patients and medical workers due to residual blood and drugs. In addition, the tubular connecting portion of the medical tube and the medical instrument can be firmly connected so that they are not detached.

軟質ポリ塩化ビニル樹脂のチューブと輸液セットの連結部の連結   Connection of flexible polyvinyl chloride resin tube and infusion set connection

硬質のポリ塩化ビニル樹脂で構成されたコネクター２１により、軟質のポリ塩化ビニル樹脂で構成された医療用チューブと輸液セットの連結部を連結した。該連結部はコネクター２１を構成する硬質のポリ塩化ビニル樹脂より硬質のポリカーボネート樹脂で構成されているので、前記輸液セットの連結部を前記軟質のポリ塩化ビニル樹脂で構成された医療用チューブと連結するに際して、図２に示す状態から前記輸液セットの連結部の先端部により突起部６を医療用チューブ挿入側に押圧して該突起部６を変形させることができ、該変形によって立設壁３１のテーパー状内腔面４１および輸液セットの連結部の内腔面を段差の無い連続した内腔面として形成したものである。   A connector 21 made of hard polyvinyl chloride resin was used to connect a medical tube made of soft polyvinyl chloride resin and a connection portion of the infusion set. Since the connecting portion is made of a polycarbonate resin harder than the hard polyvinyl chloride resin constituting the connector 21, the connecting portion of the infusion set is connected to the medical tube made of the soft polyvinyl chloride resin. In doing so, the protruding portion 6 can be deformed by pressing the protruding portion 6 toward the medical tube insertion side from the state shown in FIG. 2 by the distal end portion of the connecting portion of the infusion set, and the standing wall 31 can be deformed by the deformation. The tapered lumen surface 41 and the lumen surface of the connecting portion of the infusion set are formed as a continuous lumen surface without a step.

従来例のコネクターの医療用チューブと医療用器具の連結部の接続状態を示す模式的断面図である。It is typical sectional drawing which shows the connection state of the connection part of the medical tube and medical instrument of the connector of a prior art example. 医療用器具の連結部によって立設壁を押圧変形する前の本発明のコネクターの接続状態を示す模式的断面図である。It is typical sectional drawing which shows the connection state of the connector of this invention before pressing and deforming a standing wall by the connection part of a medical device. 医療用器具の連結部によって立設壁を押圧変形後の本発明のコネクターの接続状態を示す模式的断面図である。It is typical sectional drawing which shows the connection state of the connector of this invention after pressing and deforming a standing wall by the connection part of a medical instrument.

符号の説明Explanation of symbols

１ 医療用合成樹脂チューブ
１１ 医療用合成樹脂チューブの内腔面
２ コネクター
２１ コネクター
３ 立設壁
３１ 立設壁
４ 立設壁のテーパー状内腔面
４１ 立設壁のテーパー状内腔面
５ 医療用器具の連結部
６ 突起部
７ 間隙部 DESCRIPTION OF SYMBOLS 1 Medical synthetic resin tube 11 Lumen surface of medical synthetic resin tube 2 Connector 21 Connector 3 Standing wall 31 Standing wall 4 Tapered lumen surface of standing wall 41 Tapered lumen surface of standing wall 5 Medical Device connection part 6 Projection part 7 Gap part

Claims (4)

医療用チューブならびに該医療用チューブと通液可能に連結される医療用器具の連結部が挿入される内腔、および該内腔内に挿入される前記医療用チューブと医療用器具の連結部の各先端部を停止する立設壁を有し、かつ該立設壁はチューブ挿入側から医療用器具の連結部側に向かって拡大したテーパー状の内腔面を形成している医療用チューブと医療用器具を連結するコネクターにおいて、前記立設壁が医療用器具の連結部が挿入される側の側面に突起部を有することを特徴とするコネクター。 A lumen for inserting a medical tube and a connecting portion of a medical device connected to the medical tube so as to allow liquid to pass therethrough, and a connecting portion of the medical tube and the medical device inserted into the lumen; A medical tube having a standing wall that stops each distal end, and the standing wall forms a tapered lumen surface that expands from the tube insertion side toward the connecting portion side of the medical device; The connector for connecting a medical instrument, wherein the standing wall has a protrusion on a side surface on a side where the connecting part of the medical instrument is inserted. 前記突起部が内腔内に挿入された医療用器具の連結部先端の押圧により変形して、前記立設壁と医療用器具の連結部の内腔面を隙間と段差の無い連続内腔面とすることができるものであることを特徴とする請求項１記載のコネクター。 The protruding portion is deformed by pressing the distal end of the connecting portion of the medical device inserted into the lumen, and the inner surface of the connecting portion between the standing wall and the medical device is not a gap and a step is provided. The connector according to claim 1, wherein the connector can be used. 前記突起部を有するコネクターの硬度が、内腔内に挿入された医療用器具の連結部の硬度より小さく、かつ内腔内に挿入された医療用チューブの硬度より大きいことを特徴とする請求項１または２記載のコネクター。 The hardness of the connector having the protrusion is smaller than the hardness of the connecting portion of the medical instrument inserted into the lumen and larger than the hardness of the medical tube inserted into the lumen. The connector according to 1 or 2. コネクターと該コネクターの内腔内に挿入された医療用チューブが共にポリ塩化ビニル樹脂で構成されたものであることを特徴とする請求項３記載のコネクター。 4. The connector according to claim 3, wherein both the connector and the medical tube inserted into the lumen of the connector are made of polyvinyl chloride resin.
JP2006141851A 2006-05-22 2006-05-22 Connector for medical tube and connector for medical device connected to the medical tube Expired - Fee Related JP4882507B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011212174A (en) * 2010-03-31 2011-10-27 Toray Medical Co Ltd Blood purifier
JP2014008376A (en) * 2012-07-03 2014-01-20 Nikkiso Co Ltd Pump connector
US9345853B2 (en) 2010-12-10 2016-05-24 Teknor Apex Company Tube assembly and method for making the assembly
JP2018510690A (en) * 2015-03-02 2018-04-19 フレゼニウス ムディカル カーレ ドイチェランド ゲーエムベーハーＦｒｅｓｅｎｉｕｓ Ｍｅｄｉｃａｌ Ｃａｒｅ Ｄｅｕｔｓｃｈｌａｎｄ ＧｍｂＨ Medical plug and snap-in connector to establish fluid coupling between two systems

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61213057A (en) * 1985-03-19 1986-09-22 日本ゼオン株式会社 Connector for fluid conduit
JP2005192782A (en) * 2004-01-07 2005-07-21 Nipro Corp Female connector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61213057A (en) * 1985-03-19 1986-09-22 日本ゼオン株式会社 Connector for fluid conduit
JP2005192782A (en) * 2004-01-07 2005-07-21 Nipro Corp Female connector

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011212174A (en) * 2010-03-31 2011-10-27 Toray Medical Co Ltd Blood purifier
US9345853B2 (en) 2010-12-10 2016-05-24 Teknor Apex Company Tube assembly and method for making the assembly
JP2014008376A (en) * 2012-07-03 2014-01-20 Nikkiso Co Ltd Pump connector
JP2018510690A (en) * 2015-03-02 2018-04-19 フレゼニウス ムディカル カーレ ドイチェランド ゲーエムベーハーＦｒｅｓｅｎｉｕｓ Ｍｅｄｉｃａｌ Ｃａｒｅ Ｄｅｕｔｓｃｈｌａｎｄ ＧｍｂＨ Medical plug and snap-in connector to establish fluid coupling between two systems
US11697013B2 (en) 2015-03-02 2023-07-11 Fresenius Medical Care Deutschland Gmbh Medical fluid coupling and a latching connector for establishing a fluid communication between two systems

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