JP3763999B2

JP3763999B2 - Puncture member and syringe with puncture member

Info

Publication number: JP3763999B2
Application number: JP19568199A
Authority: JP
Inventors: 英次高橋; 隆行阿部
Original assignee: Kawasumi Laboratories Inc
Current assignee: Kawasumi Laboratories Inc
Priority date: 1998-12-28
Filing date: 1999-07-09
Publication date: 2006-04-05
Anticipated expiration: 2019-07-09
Also published as: JP2000245852A

Description

【０００１】
【発明の属する技術分野】
本発明は例えば輸液セット、採血セット、輸血セット、体外循環回路等の医療器具の途中に配置される混注部材、薬剤（輸液、生理食塩水溶液、血液保存液等）を封入した医薬容器に装着される口部及び医薬容器に接続されたチューブの途中に配置される混注部材であって、これらの医療器具及び医薬容器に薬剤を混注もしくは採取したり、又は血液を採取もしくは注入する時に使用される混注部材及び口部の改良並びに、これらに穿刺する穿刺部材等の改良に関する。
【０００２】
【発明が解決しようとする課題】
血液を患者の体内に入れる輸血治療、血液を体外に抜き出す採血検査等、薬剤を患者の体内に入れる輸液治療、または患者の体内から血液を一時的に抜き出す体外循環治療等を行なう際に、血液や薬剤を患者に注入したり採取する器具（例えば輸血セット、輸液セット、体外循環回路、採血セット、シリンジなど）がある。
シリンジを除き輸血セット、輸液セット、体外循環回路、採血セットなどを構成するラインの途中には、数々の構成部材が装着されているが、混注部材は血液を追加したり、検査のために血液を採取したり、また薬剤の追加や緊急時の薬剤投与など重要な役割を果たしている。
【０００３】
通常これらの混注部材は、管状の本体に突設された胴部に栓体が装着され、前記栓体には中央が開口したキャップが冠着されている。
使用に際しては、キャップの中央開口部に露出した栓体の天面に、先端が鋭利な金属製の針を穿刺し、針の後方に装着された容器の内部に封入されている薬剤や血液の注入または空の容器内に血液の採取を行なう。また、持続的な薬剤や血液の注入の場合、針の後方に薬剤や血液の入った容器と連通された延長チューブまたは輸液セット、輸血セットなどがある。その際混注部材に穿刺した針が抜け落ちないよう、粘着テープで混注部材と針基を固定することもある。
使用する針は、従来より先端が鋭利な金属針を使用する事が多かったが、作業者が金属針の先端に触れ、外傷だけでなく感染症に感染する危険が大きいく、近年、先端が鋭利な金属針に代えて、先端に丸みを帯びた形状を有する穿刺部材を使用する方法が考案されている。
先端に丸みを帯びた形状を有する穿刺部材（以下「穿刺部材」と略記する）を混注部材に穿刺する際に栓体天面にスリットを入れて刺通抵抗を低くして、刺し易くする試みがある。
スリットを入れる事により穿刺のきっかけができ、刺通抵抗が低くなり刺し易くなるが、持続的な薬剤や血液の注入の場合、穿刺部材の後方の薬剤や血液の入った容器やチューブの重みで、穿刺部材が傾くため栓体からの液漏れや穿刺部材の抜けが発生する虞がある。
そこで、本発明者は以上の課題を解決するために鋭意検討を重ねた結果、次の発明に到達した。
【０００４】
【課題を解決するための手段】
［１］本発明は、管状の本体（１２）の天面に突設された筒体（１６）の上部開口部に、弾性を有しかつ少なくとも天面にスリット（１２）を形成した栓体（１３）を装着し、
前記筒体（１６）の上部外周に、天面の中央部が開口された筒状のキャップ（１４、１４ａ、１４ｂ）を装着し、当該キャップ（１４、１４ａ、１４ｂ）の上部内壁面に凹部（１５、１５ａ、１５ｂ）を形成した混注部材（１Ｂ、１Ｃ、１Ｄ）または、口部に挿入される穿刺部材（１、１Ａ、２Ａ）であって、
シリンジ（９）に形成された挿入部（１０）に嵌合できるように形成されるか、あるいはシリンジ９の下部に一体成形される基部（４、４ａ）を有し、
当該基部（４、４ａ）の下部に、前記栓体（１３）の前記スリット（１２）に挿入される注入部（３、３ｂ）を突設し、
前記基部（４、４ａ）の外周に指先を掛けて回動するための翼部（５、５ａ、５ｂ）を形成し、当該翼部（５、５ａ、５ｂ）は、横断面からみて、長い翼部（５、５ａ）と短い翼部（５ｂ）が対となり、略９０度に交差するように、基部（４、４ａ）の外周に配置され、
前記注入部（３、３ｂ）の上部に、前記栓体（１３）の天面を押圧する板状の押圧部（６、６ａ、６ｂ）を形成し、
当該押圧部（６、６ａ、６ｂ）の外周に、前記キャップ（１４、１４ａ、１４ｂ）の凹部（１５、１５ａ、１５ｂ）に嵌合できる凸部（７、７ａ、７ｂ）を形成し、
前記注入部（３、３ｂ）を前記栓体（１３）の前記スリット（１２）に挿入することができ、
前記押圧部（６）の外周に設けられた前記凸部（７、７ａ、７ｂ）と前記キャップ（１４、１４ａ、１４ｂ）の前記凹部（１５、１５ａ、１５ｂ）を嵌合させることができ、
前記凸部（７、７ａ、７ｂ）と前記凹部（１５、１５ａ、１５ｂ）を嵌合させた後に、前記穿刺部材（１、１Ａ、２Ａ）を回動することにより前記凸部（７、７ａ、７ｂ）が前記キャップ（１４、１４ａ、１４ｂ）の上部内壁面と前記栓体（１３）天面の間に侵入して、前記混注部材（１Ｂ、１Ｃ、１Ｄ）または前記口部に固定できるように形成した穿刺部材（１、１Ａ、２Ａ）を提供する。
［２］本発明は、前記翼部（５、５ａ、５ｂ）の上端部に、ルアーロックタイプのシリンジと嵌合できる鍔部（８、８ａ）を形成した［１］に記載の穿刺部材（１、１Ａ、２Ａ）を提供する。
［３］本発明は、［１］ないし［２］に記載の穿刺部材（１、１Ａ、２Ａ）の基部（４、４ａ）をシリンジ（９）の挿入部（１０）に挿着するか、または［１］ないし［２］に記載の穿刺部材（１、１Ａ、２Ａ）の基部（４、４ａ）をシリンジ（９）の下部に一体成形した穿刺部材付シリンジを提供する。
【０００５】
【発明の実施の形態】
以下穿刺部材及び混注部材について薬剤の混注を行なう場合の一例について説明する。
図１は本発明の穿刺部材１とシリンジ９を接続した概略図である。
穿刺部材１は、シリンジ９に形成された挿入部１０に嵌合する基部４と、後述する混注部材１Ｂに挿入される注入部３から構成される。
前記基部４の外周に、翼部５と翼部５ｂがそれぞれ対となり９０度間隔に設けられている。翼部５は翼部５ｂより長く形成されているので指先の掛かり具合が良く、翼部５を指先で回動させることによりシリンジ９との脱着がし易くなる。
翼部５は翼部５ｂより長く形成されているので、穿刺部材１、後述する穿刺部材１Ａが混注部材１Ｂ、後述する混注部材１Ｃに挿入、嵌合、回動、固定した時、翼部５は本体１１の長さ方向に対して垂直方向を示し、目視により締付けている状態を確認することができる。
前記翼部５、５ｂの下端部には、板状の押圧部６が形成され、該押圧部６の外周には少なくとも2ヶ所の凸部７が形成されている。
前記翼部５、５ｂの上端部には必要により鍔部８が形成される。これによりシリンジ９と穿刺部材１（１Ａ）が抜けない様に、ルアーロックタイプのシリンジ（図示せず）とも嵌合できる。
注入部先端３ａは、栓体１３のスリット１２に穿刺し易くする為に、外周を鋭利な角度に加工している。
【０００６】
図２は図１の穿刺部材１を注入部先端３ａから見たＡ矢視図（正面図）で、図３は図２の穿刺部材１に嵌合できる混注部材１Ｂの平面図である。
図３の混注部材１Ｂは管状の本体１１の天面に突設された管状の筒体１６に、弾性を有し且つ少なくとも天面にスリット１２を形成した栓体１３を装着し、前記筒体１６の外周に形成した凸部１７に、キャップ１４の内周に形成した凹部１８を嵌合して、前記キャップ１４を筒体１６に冠着することにより構成される。
スリット１２の向きは図３のように本体１１の長さに対して垂直とは限らず９０度でも、４５度でもそれ以外でも良く、注入部先端３ａを挿入するきっかけをつくれば向きは特に限定しない。
キャップ１４は天面の中央部が開口された筒状のキャップ１４で、前記キャップ１４の上部内壁面には押圧部６の外周に設けられた凸部７と嵌合する凹部１５が形成されている。
【０００７】
図４は前記穿刺部材１のその他の実施例を示す穿刺部材１Ａであり、注入部先端３ａから見た正面図で、図５は図４の穿刺部材１Ａに嵌合する混注部材１Ｃの平面図である。
基部４の外周に、翼部５、５ｂがそれぞれ対となり９０度間隔に設けられ、前記翼部５、５ｂの下端部には、板状の円形を二等分し中心を少しずらして接合した形状の押圧部６ａを形成し、且つ前記押圧部６ａの外周には凸部７ａが設けられ、前記翼部５、５ｂの上端部には鍔部８が形成されている。
注入部先端３ａは、栓体１３のスリット１２に穿刺し易くする為に、外周を鋭利な角度に加工している。
混注部材１Ｃは管状の本体１１の天面に突設された管状の筒体１６に、弾性を有し且つ少なくとも天面にスリット１２を形成した栓体１３を装着し、前記筒体１６の外周に形成した凸部１７に、キャップ１４ａの内周に形成した凹部１８を嵌合して、前記キャップ１４ａを筒体１６に冠着することにより構成される。
キャップ１４ａは天面の中央部が開口された筒状のキャップで、前記キャップ１４ａの上部内壁面には押圧部６ａの外周に設けられた凸部７ａと嵌合する凹部１５ａが形成される。
【０００８】
図６は穿刺部材１を混注部材１Ｂに穿刺し、押圧部６を栓体１３の天面に押圧した概略図で、図７は図６の穿刺部材１を９０度回動した時の概略図である。
穿刺部材１を混注部材１Ｂの栓体１３の天面に形成されたスリット１２に挿入し押圧する。
同時に押圧部６の外周に設けられた凸部７と、キャップ１４の上部内壁面に形成された凹部１５を嵌合させ、さらに栓体１３の天面を押圧し、前記穿刺部材１を９０度回動させる。
穿刺部材１を押圧することで、押圧部６と凸部７が栓体１３を圧縮し、さらに回動することにより凸部７がキャップ１４の上部内壁面と栓体１３の天面の間にねじ込まれ、穿刺部材１と混注部材１Ｂが強固に固定される。これにより持続的な薬剤の注入の際、穿刺部材１が傾いたり抜け落ちることがなくなり、栓体１３からの液漏れもなくなる。
穿刺部材１を回動させる角度は４０度から１４０度であれば充分であるが、キャップ１４の上部内壁面には押圧部６の外周に設けられた凸部７が嵌合し、回動した時外れなければ良く、好ましくは９０度が良い。
【０００９】
図８は前記穿刺部材１のその他の実施例を示す穿刺部材２Ａであり、注入部先端３ａから見た正面図で、図９は図８の穿刺部材２Ａに嵌合する混注部材１Ｄの平面図で、図１０は穿刺部材２Ａとシリンジ９を接続した概略図、図１１は混注部材１Ｄの断面図である。
基部４ａの外周に、翼部５ａ、５ｂがそれぞれ対となり９０度間隔で四箇所に設けられ、前記翼部５ａ、５ｂの下端部には、間隔をあけて、板状の略ひし形状の押圧部６ｂを形成し、且つ前記押圧部６ｂの外周には凸部７ｂが設けられ、前記翼部５ａ、５ｂの上端部には鍔部８ａが形成されている。これによりシリンジ９と穿刺部材２Ａが抜けないように、ルアーロックタイプのシリンジ（図示せず）とも嵌合できる。
翼部５ａは翼部５ｂより長く形成されているので前記と同様指先の掛かり具合が良く、翼部５ａを指先で回動させることにより、シリンジ９との脱着がしやすくなる。
翼部５ａは翼部５ｂより長く形成されているので、穿刺部材２Ａが混注部材１Ｄに挿入、嵌合、回動、固定した時、翼部５ａは本体１１の長さ方向に対して垂直方向を示し、目視により締付けている状態を確認することができる。
【００１０】
図９の混注部材１Ｄは管状の本体１１の天面に突設された管状の筒体１６に、弾性を有し且つ少なくとも天面にスリット１２を形成した栓体１３を装着し、前記筒体１６の外周に形成した凸部１７に、キャップ１４ｂの内周に形成した凹部１８を嵌合して、前記キャップ１４ｂを筒体１６に冠着することにより構成される。
キャップ１４ｂは天面の中央部が開口された筒状のキャップ１４ｂで、前記キャップ１４ｂの上部内壁面には押圧部６ｂの外周に設けられた凸部７ｂと嵌合する形状の凹部１５ｂが形成されている。
キャップ１４ｂの外周には必要に応じてリング状の保持部１９が形成される。前記保持部１９は押圧部６ｂの外周に設けられた凸部７ｂと凹部１５ｂとを嵌合する際、本体１１を指で挟み込み、前記混注部材１Ｄを固定し、穿刺し易くする為に形成しており、また注入部先端３ａが指に触れないように保護する役割も果たしてる。
【００１２】
穿刺部材１（１Ａ、２Ａ）は図示したものに限らず、翼部５（５ａ、５ｂ）は指先で回動させることでシリンジとの脱着を容易にする形状であればどのような形状でも採用することができる。特に翼部５（５ａ、５ｂ）の数は２枚から６枚に形成するのが良い。
【００１３】
本発明で押圧部６（６ａ、６ｂ）とは混注部材１Ｂ（１Ｃ、１Ｄ）に装着した栓体１３の天面を押圧する部材であり、注入部３（３ｂ）とは前記栓体１３のスリット１２に挿入して、該注入部３（３ｂ）の先端３ａが前記混注部材１Ｂ（１Ｃ、１Ｄ）の本体１１の流路に突出する部材である。したがって本発明では押圧部６（６ａ、６ｂ）と注入部３（３ｂ）の形状は、図示したものに限定されず穿刺部材１（１Ａ、２Ａ）を混注部材１Ｂ（１Ｃ、１Ｄ）に挿入した時、前記混注部材１Ｂ（１Ｃ、１Ｄ）の本体１１の流路に、前記穿刺部材１（１Ａ、２Ａ）の注入部３（３ｂ）の先端３ａが届きかつ押圧部６（６ａ、６ｂ）が栓体１３の天面を押圧でき、さらに回動できる形状であれば何でも良い。
さらに詳述すれば前記図１と図１０の注入部３（３ｂ）の長さは翼部５、５ｂ（５ａ、５ｂ）の長さと同程度に形成されているが、前記に述べたように該注入部３（３ｂ）の先端３ａが本体１１の流路に突出してその他の部分がスリット１２の中に埋れば良い。さらに前記押圧部６（６ａ、６ｂ）は栓体１３の天面を押圧できれば良い。したがって注入部３（３ｂ）の長さは翼部５、５ｂ（５ａ、５ｂ）より長くても良いし短くても良い。
また押圧部６（６ａ）は翼部５、５ｂと一体に成形せず、注入部３の外周に押圧部６ｂのように単独で形成することもできる。すなわち押圧部６（６ａ）は押圧部６ｂのように翼部５ａ（５ｂ）と間隔をあけて形成しても良いし、押圧部６（６ａ、６ｂ）のみを形成して翼部５（５ａ、５ｂ）は設けなくても良い。
【００１４】
本発明の前記穿刺部材１（１Ａ、２Ａ）は基部４（４ａ）をシリンジ９の挿入部１０に装着又は基部４（４ａ）をシリンジ９の下部に一体成形して一つの部材、すなわち穿刺部材付シリンジ（図示せず）として使用することができる。
【００１５】
前記混注部材１Ｂ（１Ｃ、１Ｄ）は本体１１を筒体１６の下方にほぼ垂直に延設して、薬剤の封入された袋状の容器本体の上部に装着すれば医薬容器の口部に転用することができる。また容器本体に前記口部が一体成形されたプラスチック製の医薬容器にも口部（既に本体１１と筒体１６を備える）に栓体１３とキャップ１４（１４ａ、１４ｂ）を使用してこれらの医薬容器の口部に転用することができる。
また容器本体がガラス製の医薬容器であっても容器本体の上部に装着される口部のうち少なくとも筒体１６がキャップ１４（１４ａ、１４ｂ）を装着できるプラスチック製のものであればこれらの医薬容器の口部に転用することができる。
【００１６】
【発明の作用効果】
穿刺部材１（１Ａ、２Ａ）の押圧部６（６ａ、６ｂ）の外周に設けられた凸部７（７ａ、７ｂ）と、キャップ１４（１４ａ、１４ｂ）の上部内壁面に形成された凹部１５（１５ａ、１５ｂ）が嵌合され、栓体１３の天面を押圧し、穿刺部材１（１Ａ、２Ａ）を回動させることにより、穿刺部材１（１Ａ、２Ａ）と混注部材１Ｂ（１Ｃ、１Ｄ）が固定され、穿刺部材１（１Ａ、２Ａ）の後方の薬剤や血液の入った容器やチューブの重みで、穿刺部材１（１Ａ、２Ａ）が傾くのを防ぎ、栓体１３からの液漏れや穿刺部材１（１Ａ、２Ａ）の抜けも防ぐことができる。
【図面の簡単な説明】
【図１】本発明の穿刺部材１とシリンジ９を接続した概略図
【図２】図１の穿刺部材１を注入部先端３ａから見たＡ矢視図（正面図）
【図３】図２の穿刺部材１に嵌合する混注部材１Ｂの平面図
【図４】穿刺部材１のその他の実施例を示す穿刺部材１Ａで、注入部先端３ａから見た正面図
【図５】図４の穿刺部材１Ａに嵌合する混注部材１Ｃの平面図
【図６】穿刺部材１を混注部材１Ｂに穿刺し、押圧部６を栓体１３に押圧した概略図
【図７】図６の穿刺部材を９０度回転した時の概略図
【図８】穿刺部材１のその他の実施例を示す穿刺部材２Ａで、注入部先端３ａから見た正面図
【図９】図８の穿刺部材２Ａに嵌合する混注部材１Ｄの平面図
【図１０】穿刺部材２Ａとシリンジ９を接続した概略図
【図１１】混注部材１Ｄの断面図
【符号の説明】
１、１Ａ、２Ａ穿刺部材
１Ｂ、１Ｃ、１Ｄ混注部材
３、３ｂ注入部
３ａ注入部先端
４、４ａ基部
５、５ａ、５ｂ翼部
６、６ａ、６ｂ押圧部
７、７ａ、７ｂ凸部
８、８ａ鍔部
９シリンジ
１０挿入部
１１本体
１２スリット
１３栓体
１４、１４ａ、１４ｂキャップ
１５、１５ａ、１５ｂ凹部
１６筒体
１７筒体凸部
１８キャップ凹部
１９保持部
Ａ矢視図[0001]
BACKGROUND OF THE INVENTION
The present invention is, for example, mounted on a pharmaceutical container enclosing a mixed injection member disposed in the middle of a medical device such as an infusion set, a blood collection set, a transfusion set, an extracorporeal circuit, and a medicine (infusion solution, physiological saline solution, blood preservation solution, etc.). This is a mixed injection member placed in the middle of the mouth part and the tube connected to the pharmaceutical container, and is used when mixing or collecting a drug in these medical instruments and pharmaceutical containers, or collecting or injecting blood The present invention relates to improvement of a mixed injection member and a mouth portion, and improvement of a puncture member or the like that punctures them.
[0002]
[Problems to be solved by the invention]
When performing blood transfusion treatments that introduce blood into the patient's body, blood sampling tests that extract blood outside the body, fluid treatments that introduce drugs into the patient's body, or extracorporeal circulation treatments that temporarily remove blood from the patient's body, etc. And devices for injecting or collecting drugs into patients (for example, blood transfusion sets, infusion sets, extracorporeal circulation circuits, blood collection sets, syringes, etc.).
A number of components are installed in the middle of the lines that make up the transfusion set, infusion set, extracorporeal circuit, blood collection set, etc., except for the syringe. It plays an important role such as collecting drugs, adding drugs, and administering drugs in emergencies.
[0003]
Normally, these co-infusion members are fitted with a plug body on a body portion protruding from a tubular main body, and a cap with an open center is attached to the plug body.
In use, a metal needle with a sharp tip is punctured on the top surface of the stopper exposed at the central opening of the cap, and the medicine or blood sealed inside the container attached to the back of the needle Blood is collected by injection or in an empty container. In the case of continuous infusion of medicine or blood, there are an extension tube, an infusion set, a transfusion set, or the like communicated with a container containing the medicine or blood behind the needle. At that time, the mixed injection member and the needle base may be fixed with an adhesive tape so that the needle punctured into the mixed injection member does not fall off.
The needle used is often a metal needle with a sharper tip than before, but the operator touches the tip of the metal needle and there is a greater risk of not only trauma but also an infection. A method of using a puncture member having a rounded shape at the tip instead of a sharp metal needle has been devised.
Attempting to make the piercing member easier to pierce by making a slit in the top surface of the plug body to puncture a mixed injection member with a puncture member having a rounded tip (hereinafter abbreviated as “puncture member”). There is.
Inserting a slit can trigger puncture and lower puncture resistance, facilitating puncture, but in the case of continuous drug or blood injection, the weight of the container or tube containing the drug or blood behind the puncture member In addition, since the puncture member is inclined, there is a risk that liquid leakage from the plug body or puncture member may come off.
Therefore, as a result of intensive studies to solve the above problems, the present inventor has reached the following invention.
[0004]
[Means for Solving the Problems]
[1] The present invention provides a plug body having elasticity and forming a slit (12) at least on the top surface in the upper opening of the cylindrical body (16) projecting from the top surface of the tubular body (12). Wear (13)
A cylindrical cap (14, 14a, 14b) having an opening at the center of the top surface is attached to the outer periphery of the upper portion of the cylindrical body (16), and a recess is formed in the upper inner wall surface of the cap (14, 14a, 14b). (15, 15a, 15b) mixed injection member (1B, 1C, 1D) or puncture member (1, 1A, 2A) inserted into the mouth,
It has a base (4, 4a) that is formed so that it can be fitted to the insertion part (10) formed in the syringe (9), or is integrally formed in the lower part of the syringe 9,
An injecting portion (3, 3b) to be inserted into the slit (12) of the plug (13) is projected from the lower portion of the base portion (4, 4a),
Wings (5, 5a, 5b) are formed on the outer periphery of the base (4, 4a) for turning with a fingertip, and the wings (5, 5a, 5b) are long when viewed from the cross section. The wings (5, 5a) and the short wings (5b) are paired and arranged on the outer periphery of the base (4, 4a) so as to intersect approximately 90 degrees.
A plate-like pressing part (6, 6a, 6b) that presses the top surface of the plug (13) is formed on the top of the injection part (3, 3b),
On the outer periphery of the pressing part (6, 6a, 6b), a convex part (7, 7a, 7b) that can be fitted into the concave part (15, 15a, 15b) of the cap (14, 14a, 14b) is formed.
The injection part (3, 3b) can be inserted into the slit (12) of the plug (13),
The convex portion (7, 7a, 7b) provided on the outer periphery of the pressing portion (6) and the concave portion (15, 15a, 15b) of the cap (14, 14a, 14b) can be fitted,
After fitting the convex portions (7, 7a, 7b) and the concave portions (15, 15a, 15b), by rotating the puncture member (1, 1A, 2A), the convex portions (7, 7a 7b) can enter between the upper inner wall surface of the cap (14, 14a, 14b) and the top surface of the plug (13) and be fixed to the mixed injection member (1B, 1C, 1D) or the mouth. A puncture member (1, 1A, 2A) formed as described above is provided.
[2] The puncture member according to [1], wherein the wing (5, 5a, 5b) has a flange (8, 8a) that can be fitted with a luer lock type syringe at the upper end of the wing (5, 5a, 5b). 1, 1A, 2A).
[3] In the present invention, the base (4, 4a) of the puncture member (1, 1A, 2A) according to [1] or [2] is inserted into the insertion portion (10) of the syringe (9), Alternatively, a syringe with a puncture member is provided in which the base (4, 4a) of the puncture member (1, 1A, 2A) according to [1] or [2] is integrally formed at the lower part of the syringe (9).
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example in the case of performing mixed injection of a drug on the puncture member and the mixed injection member will be described.
FIG. 1 is a schematic view in which a puncture member 1 of the present invention and a syringe 9 are connected.
The puncture member 1 includes a base portion 4 that fits into an insertion portion 10 formed in the syringe 9 and an injection portion 3 that is inserted into a mixed injection member 1B described later.
On the outer periphery of the base portion 4, the wing portion 5 and the wing portion 5b are provided in pairs at intervals of 90 degrees. Since the wing part 5 is formed longer than the wing part 5b, the fingertip is well engaged, and the wing part 5 is easily attached to and detached from the syringe 9 by rotating the wing part 5 with the fingertip.
Since the wing part 5 is formed longer than the wing part 5b, when the puncture member 1 and a puncture member 1A described later are inserted, fitted, rotated, and fixed to the mixed injection member 1B and the mixed injection member 1C described later, the wing part 5 Indicates a direction perpendicular to the length direction of the main body 11 and can be visually confirmed.
A plate-like pressing part 6 is formed at the lower end of the wing parts 5, 5 b, and at least two convex parts 7 are formed on the outer periphery of the pressing part 6.
A flange 8 is formed at the upper end of the wings 5 and 5b as necessary. Thereby, it can also be fitted with a luer lock type syringe (not shown) so that the syringe 9 and the puncture member 1 (1A) do not come off.
In order to make it easy to puncture the slit 12 of the plug body 13, the outer periphery of the injection portion tip 3a is processed at a sharp angle.
[0006]
2 is a view (front view) of the puncture member 1 of FIG. 1 as viewed from the injection tip 3a (front view), and FIG. 3 is a plan view of a co-infusion member 1B that can be fitted to the puncture member 1 of FIG.
The mixed injection member 1B shown in FIG. 3 has a tubular body 16 protruding from the top surface of a tubular body 11 and a plug body 13 having elasticity and at least a slit 12 formed on the top surface. The concave portion 18 formed on the inner periphery of the cap 14 is fitted to the convex portion 17 formed on the outer periphery of the cap 16, and the cap 14 is attached to the cylindrical body 16.
The direction of the slit 12 is not necessarily perpendicular to the length of the main body 11 as shown in FIG. 3, and it may be 90 degrees, 45 degrees, or any other direction. The direction is particularly limited if the trigger for inserting the injection tip 3a is created. do not do.
The cap 14 is a cylindrical cap 14 having an opening at the center of the top surface, and a concave portion 15 is formed on the upper inner wall surface of the cap 14 so as to be fitted to the convex portion 7 provided on the outer periphery of the pressing portion 6. Yes.
[0007]
FIG. 4 is a puncture member 1A showing another embodiment of the puncture member 1, which is a front view seen from the injection portion tip 3a, and FIG. 5 is a plan view of a co-infusion member 1C fitted to the puncture member 1A of FIG. It is.
On the outer periphery of the base part 4, the wing parts 5 and 5b are paired and provided at an interval of 90 degrees, and the lower ends of the wing parts 5 and 5b are joined in a plate-like circular shape with the center slightly shifted. A pressing portion 6a having a shape is formed, a convex portion 7a is provided on the outer periphery of the pressing portion 6a, and a flange portion 8 is formed on the upper end portions of the wing portions 5 and 5b.
In order to make it easy to puncture the slit 12 of the plug body 13, the outer periphery of the injection portion tip 3a is processed at a sharp angle.
The mixed injection member 1 </ b> C is attached to a tubular body 16 projecting from the top surface of the tubular body 11 with a plug body 13 having elasticity and at least a slit 12 formed on the top surface. The concave portion 18 formed on the inner periphery of the cap 14 a is fitted to the convex portion 17 formed in the above, and the cap 14 a is attached to the cylindrical body 16.
The cap 14a is a cylindrical cap having an opening at the center of the top surface, and a concave portion 15a is formed on the upper inner wall surface of the cap 14a to be fitted with a convex portion 7a provided on the outer periphery of the pressing portion 6a.
[0008]
6 is a schematic view in which the puncture member 1 is punctured into the co-infusion member 1B, and the pressing portion 6 is pressed against the top surface of the plug body 13, and FIG. 7 is a schematic view when the puncture member 1 in FIG. It is.
The puncture member 1 is inserted into a slit 12 formed on the top surface of the plug body 13 of the mixed injection member 1B and pressed.
At the same time, the convex portion 7 provided on the outer periphery of the pressing portion 6 and the concave portion 15 formed on the upper inner wall surface of the cap 14 are fitted, and the top surface of the plug body 13 is further pressed so that the puncture member 1 is moved 90 degrees. Rotate.
By pressing the puncture member 1, the pressing portion 6 and the convex portion 7 compress the plug body 13, and further rotating, the convex portion 7 is placed between the upper inner wall surface of the cap 14 and the top surface of the plug body 13. It is screwed in and the puncture member 1 and the mixed injection member 1B are firmly fixed. This prevents the puncture member 1 from tilting or falling off during continuous drug injection, and also prevents liquid leakage from the plug 13.
It is sufficient that the puncture member 1 is rotated at an angle of 40 ° to 140 °, but the convex portion 7 provided on the outer periphery of the pressing portion 6 is fitted to the upper inner wall surface of the cap 14 and rotated. It is sufficient if it does not deviate, and 90 degrees is preferable.
[0009]
FIG. 8 is a puncture member 2A showing another embodiment of the puncture member 1, which is a front view seen from the injection portion tip 3a, and FIG. 9 is a plan view of a mixed injection member 1D fitted to the puncture member 2A of FIG. FIG. 10 is a schematic view in which the puncture member 2A and the syringe 9 are connected, and FIG. 11 is a cross-sectional view of the co-infusion member 1D.
On the outer periphery of the base part 4a, the wing parts 5a and 5b are provided in pairs at four positions at intervals of 90 degrees, and at the lower ends of the wing parts 5a and 5b, a plate-like substantially rhombus-shaped press is provided. A convex portion 7b is formed on the outer periphery of the pressing portion 6b, and a flange portion 8a is formed on the upper end portions of the wing portions 5a and 5b. Thus, a luer lock type syringe (not shown) can be fitted so that the syringe 9 and the puncture member 2A do not come off.
Since the wing part 5a is formed longer than the wing part 5b, the fingertip is in the same manner as described above, and the wing part 5a is easily attached to and detached from the syringe 9 by rotating the wing part 5a with the fingertip.
Since the wing part 5a is formed longer than the wing part 5b, when the puncture member 2A is inserted, fitted, rotated, and fixed to the co-infusion member 1D, the wing part 5a is perpendicular to the length direction of the main body 11. It is possible to confirm the tightening state by visual inspection.
[0010]
The mixed injection member 1D shown in FIG. 9 has a tubular body 16 protruding from the top surface of a tubular body 11 and a plug body 13 having elasticity and at least a slit 12 formed on the top surface. The concave portion 18 formed on the inner periphery of the cap 14 b is fitted to the convex portion 17 formed on the outer periphery of the cap 16 b, and the cap 14 b is crowned on the cylindrical body 16.
The cap 14b is a cylindrical cap 14b having an opening at the center of the top surface, and a concave portion 15b is formed on the upper inner wall surface of the cap 14b so as to fit with a convex portion 7b provided on the outer periphery of the pressing portion 6b. Has been.
A ring-shaped holding portion 19 is formed on the outer periphery of the cap 14b as necessary. The holding portion 19 is formed so that the main body 11 is pinched with fingers when the convex portion 7b and the concave portion 15b provided on the outer periphery of the pressing portion 6b are fitted, and the mixed injection member 1D is fixed and easy to puncture. It also serves to protect the injection tip 3a from touching the finger.
[0012]
The puncture member 1 (1A, 2A) is not limited to the one shown in the figure, and the wings 5 (5a, 5b) may be any shape as long as the wings 5 (5a, 5b) can be easily attached to and detached from the syringe by turning with a fingertip. can do. In particular, the number of wing parts 5 (5a, 5b) is preferably formed from 2 to 6.
[0013]
In the present invention, the pressing portion 6 (6a, 6b) is a member that presses the top surface of the plug body 13 attached to the mixed injection member 1B (1C, 1D), and the injection section 3 (3b) is the plug body 13 Inserted into the slit 12, the tip 3a of the injection part 3 (3b) is a member protruding into the flow path of the main body 11 of the mixed injection member 1B (1C, 1D). Therefore, in this invention, the shape of the press part 6 (6a, 6b) and the injection | pouring part 3 (3b) is not limited to what was illustrated, The puncture member 1 (1A, 2A) was inserted in the mixed injection member 1B (1C, 1D) At the time, the tip 3a of the injection part 3 (3b) of the puncture member 1 (1A, 2A) reaches the flow path of the main body 11 of the mixed injection member 1B (1C, 1D) and the pressing part 6 (6a, 6b). Any shape can be used as long as the top surface of the plug 13 can be pressed and further rotated.
More specifically, the length of the injection portion 3 (3b) in FIGS. 1 and 10 is formed to be approximately the same as the length of the wing portions 5 and 5b (5a and 5b). The tip 3 a of the injection part 3 (3 b) protrudes into the flow path of the main body 11 and the other part may be buried in the slit 12. Furthermore, the said press part 6 (6a, 6b) should just press the top | upper surface of the plug body 13. FIG. Therefore, the length of the injection part 3 (3b) may be longer or shorter than the wing parts 5, 5b (5a, 5b).
The pressing portion 6 (6a) may not be formed integrally with the wing portions 5 and 5b, but may be formed alone on the outer periphery of the injection portion 3 like the pressing portion 6b. That is, the pressing part 6 (6a) may be formed at a distance from the wing part 5a (5b) like the pressing part 6b, or only the pressing part 6 (6a, 6b) is formed to form the wing part 5 (5a). 5b) may not be provided.
[0014]
In the puncture member 1 (1A, 2A) of the present invention, the base portion 4 (4a) is attached to the insertion portion 10 of the syringe 9, or the base portion 4 (4a) is formed integrally with the lower portion of the syringe 9, so that one member, that is, the puncture member It can be used as an attached syringe (not shown).
[0015]
The mixed injection member 1B (1C, 1D) extends the body 11 substantially vertically below the cylindrical body 16 and is diverted to the mouth of a medicine container if it is mounted on the top of a bag-like container body filled with a medicine. can do. Further, a plastic medicine container in which the mouth part is integrally formed with the container body is used for the mouth part (already provided with the body 11 and the cylindrical body 16) using the plug body 13 and the cap 14 (14a, 14b). It can be diverted to the mouth of a pharmaceutical container.
Further, even if the container body is a glass medicine container, if at least the cylinder 16 is made of a plastic that can be fitted with the cap 14 (14a, 14b) among the mouth parts attached to the upper part of the container body, these medicines are used. It can be diverted to the mouth of the container.
[0016]
[Effects of the invention]
A convex portion 7 (7a, 7b) provided on the outer periphery of the pressing portion 6 (6a, 6b) of the puncture member 1 (1A, 2A) and a concave portion 15 formed on the upper inner wall surface of the cap 14 (14a, 14b). (15a, 15b) are fitted, the top surface of the plug 13 is pressed, and the puncture member 1 (1A, 2A) is rotated, whereby the puncture member 1 (1A, 2A) and the mixed injection member 1B (1C, 1D) is fixed and prevents the puncture member 1 (1A, 2A) from being tilted by the weight of the container or tube containing the medicine or blood behind the puncture member 1 (1A, 2A), and the liquid from the plug 13 Leakage and puncture member 1 (1A, 2A) can also be prevented from coming off.
[Brief description of the drawings]
FIG. 1 is a schematic view in which a puncture member 1 of the present invention is connected to a syringe 9. FIG. 2 is a view (front view) of the puncture member 1 of FIG.
3 is a plan view of a co-infusion member 1B fitted to the puncture member 1 of FIG. 2. FIG. 4 is a front view of the puncture member 1A showing another embodiment of the puncture member 1 as viewed from the injection portion tip 3a. 5 is a plan view of a co-infusion member 1C fitted to the puncture member 1A in FIG. 4. FIG. 6 is a schematic diagram in which the puncture member 1 is punctured into the co-infusion member 1B and the pressing portion 6 is pressed against the plug body 13. Fig. 8 is a schematic view when the puncture member 6 is rotated 90 degrees. Fig. 8 is a puncture member 2A showing another embodiment of the puncture member 1, and is a front view as seen from the injection tip 3a. FIG. 10 is a schematic view of the piercing member 2A and the syringe 9 connected to each other. FIG. 11 is a cross-sectional view of the mixed injection member 1D.
1, 1A, 2A Puncture member 1B, 1C, 1D Mixed injection member 3, 3b Injection portion 3a Injection portion tip 4, 4a Base portion 5, 5a, 5b Wings portion 6, 6a, 6b Pressing portions 7, 7a, 7b Protruding portion 8, 8a Hook 9 Syringe 10 Insertion 11 Body 12 Slit 13 Plugs 14, 14a, 14b Caps 15, 15a, 15b Concave 16 Tubular 17 Cylindrical Convex 18 Cap Concave 19 Holding Part A Arrow View

Claims

A stopper (13) having elasticity and at least a slit (12) formed on the top surface is attached to the upper opening of the cylindrical body (16) protruding from the top surface of the tubular body (12),
A cylindrical cap (14, 14a, 14b) having an opening at the center of the top surface is attached to the outer periphery of the upper portion of the cylindrical body (16), and a recess is formed in the upper inner wall surface of the cap (14, 14a, 14b). (15, 15a, 15b) mixed injection member (1B, 1C, 1D) or puncture member (1, 1A, 2A) inserted into the mouth,
It has a base (4, 4a) that is formed so that it can be fitted to the insertion part (10) formed in the syringe (9), or is integrally formed in the lower part of the syringe 9,
An injecting portion (3, 3b) to be inserted into the slit (12) of the plug (13) is projected from the lower portion of the base portion (4, 4a),
Wings (5, 5a, 5b) are formed on the outer periphery of the base (4, 4a) for turning with a fingertip, and the wings (5, 5a, 5b) are long when viewed from the cross section. The wings (5, 5a) and the short wings (5b) are paired and arranged on the outer periphery of the base (4, 4a) so as to intersect approximately 90 degrees.
A plate-like pressing part (6, 6a, 6b) that presses the top surface of the plug (13) is formed on the top of the injection part (3, 3b),
On the outer periphery of the pressing part (6, 6a, 6b), a convex part (7, 7a, 7b) that can be fitted into the concave part (15, 15a, 15b) of the cap (14, 14a, 14b) is formed.
The injection part (3, 3b) can be inserted into the slit (12) of the plug (13),
The convex portion (7, 7a, 7b) provided on the outer periphery of the pressing portion (6) and the concave portion (15, 15a, 15b) of the cap (14, 14a, 14b) can be fitted,
After fitting the convex portions (7, 7a, 7b) and the concave portions (15, 15a, 15b), by rotating the puncture member (1, 1A, 2A), the convex portions (7, 7a 7b) can enter between the upper inner wall surface of the cap (14, 14a, 14b) and the top surface of the plug (13) and be fixed to the mixed injection member (1B, 1C, 1D) or the mouth. A puncture member (1, 1A, 2A) characterized by being formed as described above.

The wings (5, 5a, 5b) at the upper end portion of the piercing member (1 according to claim 1, characterized in that formed flange portion capable syringe mating luer lock type (8, 8a), 1A, 2A).

The base part (4, 4a) of the puncture member (1, 1A, 2A) according to claim 1 or claim 2 is inserted into the insertion part (10) of the syringe (9), or claim 1 to claim 3. A syringe with a puncture member, wherein the base (4, 4a) of the puncture member (1, 1A, 2A) according to 2 is integrally formed at the lower part of the syringe (9).