JP2018153461A - Protective plug for sterilization and connector with protective plug for sterilization - Google Patents
Protective plug for sterilization and connector with protective plug for sterilization Download PDFInfo
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- JP2018153461A JP2018153461A JP2017053256A JP2017053256A JP2018153461A JP 2018153461 A JP2018153461 A JP 2018153461A JP 2017053256 A JP2017053256 A JP 2017053256A JP 2017053256 A JP2017053256 A JP 2017053256A JP 2018153461 A JP2018153461 A JP 2018153461A
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本発明は、滅菌処理に好適に使用できる滅菌用保護栓及び滅菌用保護栓付きコネクタに関する。 The present invention relates to a sterilization protective stopper and a connector with a sterilization protective stopper that can be suitably used for sterilization.
従来、注射器等医療用器具は、蒸気滅菌を始めとした何らかの滅菌処理を施した後に、製薬業者や医療機関等へ納品される。滅菌処理としては、たとえば高圧蒸気滅菌の他に、γ線滅菌、電子線滅菌、ＥＯＧ（工チレンオキサイドガス）滅菌等が知られている。 Conventionally, a medical instrument such as a syringe is delivered to a pharmaceutical company, a medical institution, or the like after some sterilization treatment such as steam sterilization. As the sterilization treatment, for example, γ-ray sterilization, electron beam sterilization, EOG (engineered oxide gas) sterilization, etc. are known in addition to high-pressure steam sterilization.
これらのγ線滅菌やＥＯＧ滅菌処理としては、注射器などのシリンジの先端部に形成されたオスルアーテーパー部に、エチレンプロピレンジエンゴムを含むゴム材料からなるキャップを装着した状態で滅菌する方法が知られている（例えば、特許文献１）。 As these γ-ray sterilization and EOG sterilization treatment, there is known a method of sterilization in a state where a cap made of a rubber material containing ethylene propylene diene rubber is attached to a male luer taper portion formed at the tip of a syringe such as a syringe. (For example, Patent Document 1).
しかしながら、キャップを装着した状態で滅菌する場合には、シリンジの内部までガスが透過したことを担保する必要があるのに加重して、ＥＯＧ滅菌処理においては、猛毒のＥＯＧガスを滅菌後に確実に除去されていることを要する。 However, in the case of sterilization with the cap attached, it is necessary to ensure that gas has penetrated to the inside of the syringe, and in the EOG sterilization process, the highly toxic EOG gas is surely removed after sterilization. It needs to be removed.
もっとも、例えば、嵌合したルアーテーパーの各表面からＥＯＧガスが除去されていることを確認するためには、キャップをオスルアーテーパー部から外す必要が生じ、却って、滅菌したオスルアーテーパー部が汚染されるリスクに晒されるという不都合がある。 However, for example, in order to confirm that the EOG gas is removed from each surface of the mated luer taper, it is necessary to remove the cap from the male luer taper portion. There is a disadvantage of being exposed to the risk of being
以上の従来技術の問題点に鑑み、本発明は、装着した状態でガス滅菌できるとともに、ガスが確実に除去される滅菌用保護栓を提供することを目的とする。 In view of the above-described problems of the prior art, an object of the present invention is to provide a protective stopper for sterilization that can be sterilized with gas while the gas is reliably removed.
かかる目的を達成するために、本発明の滅菌用保護栓は、ルアーコネクタの先端に外嵌された状態で螺合係止される滅菌用保護栓であって、円盤状の天板部と、該天板部の周縁から下方に延びる外筒部と、該外筒部の内周面に形成された雌ネジ部と、前記天板部の下側面から下方に延びて前記ルアーコネクタの先端面の一部と接触する突起部とを有することを特徴とする。 In order to achieve such an object, the sterilization protective plug of the present invention is a sterilization protective plug that is screwed and locked in a state of being externally fitted to the tip of the luer connector, and includes a disk-shaped top plate portion, An outer cylinder portion extending downward from the peripheral edge of the top plate portion, a female screw portion formed on the inner peripheral surface of the outer cylinder portion, and a distal end surface of the luer connector extending downward from a lower side surface of the top plate portion It has the projection part which contacts a part of this, It is characterized by the above-mentioned.
本発明の滅菌用保護栓は、シリンジ、栄養キットまたは栄養カテーテルなどの先端に形成されたルアーコネクタに外嵌できる。そして、滅菌用保護栓の内周面に設けられた雌ネジ部によって、ルアーコネクタに螺合できる。 The sterilization protective stopper of the present invention can be fitted on a luer connector formed at the tip of a syringe, a nutrition kit or a nutrition catheter. And it can be screwed together with a luer connector by the internal thread part provided in the internal peripheral surface of the protective plug for sterilization.
このとき、本発明の滅菌用保護栓には、前記天板部の下側面から下方に延びて前記ルアーコネクタの先端面の一部と接触する突起部が設けられているため、前記滅菌用保護栓の天板部の下側面と前記ルアーコネクタの先端面との間に隙間が生じさせることができる。 At this time, the sterilization protective stopper of the present invention is provided with a protrusion that extends downward from the lower surface of the top plate portion and contacts a part of the tip surface of the luer connector. A gap can be formed between the lower surface of the top plate portion of the stopper and the front end surface of the luer connector.
これにより、螺合した各ネジ部の間隙を通って、ルアーコネクタの外周面と滅菌用保護栓の外筒部の内周面との間を移動してきた流体が、突起部によって滅菌用保護栓の天板部の下側面とルアーコネクタの先端面との間も通過することができる。 As a result, the fluid that has moved between the outer peripheral surface of the luer connector and the inner peripheral surface of the outer cylinder portion of the sterilization protective plug through the gap between the screwed screw portions is sterilized by the protrusion. It can also pass between the lower surface of the top plate portion and the tip surface of the luer connector.
従って、ルアーコネクタの内部空間と外部空間とは、滅菌用保護栓が螺合されていても通気自在なので、本発明の滅菌用保護栓によれば、装着した状態でガス滅菌できるとともに、ガスを確実に除去することができる。 Therefore, since the inner space and the outer space of the luer connector can be ventilated even if the sterilization protective stopper is screwed together, the sterilization protective stopper of the present invention can be sterilized in a state where it is attached, It can be removed reliably.
本発明の滅菌用保護栓において、前記天板部には、該天板部の下側面から下方に延びて前記ルアーコネクタの先端開口から内部に遊嵌されるガイド部が設けられていることが好ましい。 In the sterilization protective plug according to the present invention, the top plate portion may be provided with a guide portion that extends downward from the lower surface of the top plate portion and loosely fits into the inside from the tip opening of the luer connector. preferable.
これによれば、天板部の下側面から下方に延びたガイド部がルアーコネクタの内周面に支持されることによって、滅菌用保護栓をルアーコネクタに対して真直ぐに螺合しやすくすることができる。また、該ガイド部は遊嵌されるものであるため、ルアーコネクタの内周面の全面と密着することはないので、流体の通気を阻害することがない。 According to this, the guide portion extending downward from the lower side surface of the top plate portion is supported by the inner peripheral surface of the luer connector, so that the sterilization protective stopper can be easily screwed straight to the luer connector. Can do. Further, since the guide portion is loosely fitted, the guide portion is not in close contact with the entire inner peripheral surface of the luer connector, and thus does not hinder the flow of fluid.
本発明の滅菌用保護栓において、前記ガイド部は前記天板部の下側面の中央部に設けられ、前記突起部は前記ガイド部の基端部外縁から放射状に延設されていることが好ましい。 In the sterilization protective stopper according to the present invention, it is preferable that the guide portion is provided at a central portion of the lower surface of the top plate portion, and the protrusions extend radially from the outer edge of the base end portion of the guide portion. .
これによれば、流体の動線をルアーコネクタの軸線方向に対して対称形にすることができるため通気性を高めることができる。 According to this, since the flow line of the fluid can be made symmetrical with respect to the axial direction of the luer connector, the air permeability can be improved.
本発明の滅菌用保護栓において、前記外筒部の内周面には、該内周面から該外筒部の軸線方向に向かって凸形状であって、前記ルアーコネクタの外周面を当接して係止する係止部を有することが好ましい。 In the sterilization protective plug of the present invention, the inner peripheral surface of the outer cylinder portion has a convex shape from the inner peripheral surface toward the axial direction of the outer cylinder portion, and contacts the outer peripheral surface of the luer connector. It is preferable to have a locking portion that locks.
これによれば、滅菌用保護栓を通気自在にしつつ、螺合状態を緩みにくくすることができる。 According to this, it is possible to make it difficult to loosen the screwed state while allowing the sterilization protective stopper to be freely ventilated.
本発明の滅菌用保護栓付きコネクタは、前記滅菌用保護栓と、前記ルアーコネクタとを備え、前記ルアーコネクタの外周面には、前記雌ネジ部と螺合する複数のリブが所定の間隔を存して設けられていることを特徴とする。 The connector with a sterilization protective plug according to the present invention comprises the sterilization protective plug and the luer connector, and a plurality of ribs threadedly engaged with the female screw portion are provided at predetermined intervals on the outer peripheral surface of the luer connector. It is characterized by existing.
これによれば、ルアーコネクタの外周面のうちリブが設けられていない箇所の面とキャップの外筒部の内周面との間を流体が通過できるので、通気性を高めることができる。 According to this, since the fluid can pass between the surface of the outer peripheral surface of the luer connector where the rib is not provided and the inner peripheral surface of the outer cylindrical portion of the cap, the air permeability can be improved.
次に、添付の図面を参照しながら本発明の実施の形態についてさらに詳しく説明する。 Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.
図１に示すように、本実施形態にかかる滅菌用保護栓付きシリンジ１は、略円筒状のシリンジ１０と、該シリンジ１０の先端に装着される滅菌用保護栓２０とからなる。 As shown in FIG. 1, a syringe 1 with a sterilization protective stopper according to this embodiment includes a substantially cylindrical syringe 10 and a sterilization protective stopper 20 attached to the tip of the syringe 10.
なお、本実施形態では、ルアーコネクタを有するものとしてシリンジ１を例として説明するが、本発明はこれに限られるものではなく、栄養セット、栄養カテーテル、混注ポート、経鼻胃・十二指腸・空腸チューブ、栄養バッグ、栄養・経口・投与用シリンジ等であってもよい。 In the present embodiment, the syringe 1 is described as an example having a luer connector, but the present invention is not limited to this, and the nutrition set, nutrition catheter, mixed injection port, nasogastric / duodenum / jejunum tube It may be a nutrition bag, a syringe for nutrition / oral / administration, and the like.
滅菌用保護栓付きシリンジ１は、後述する滅菌の後、シリンジ１０の内部に薬液を充填した状態でプランジャーロッドの先端に備えられたガスケット（図示せず）によって密封され、滅菌用保護栓２０を取り外したうえで、該プランジャーロッドを押圧することにより薬液が注出自在とされる。 The syringe 1 with the protective stopper for sterilization is sealed by a gasket (not shown) provided at the tip of the plunger rod in a state in which the inside of the syringe 10 is filled with a chemical solution after sterilization to be described later. Then, the drug solution can be poured out by pressing the plunger rod.
次いで、図１及び図２を参照してシリンジ１０の構成を説明する。 Next, the configuration of the syringe 10 will be described with reference to FIGS. 1 and 2.
シリンジ１０は、ポリエチレン、ポリプロピレンなどの合成樹脂によって成形される。 The syringe 10 is formed of a synthetic resin such as polyethylene or polypropylene.
図１に示すように、シリンジ１０は、薬液が充填される内部空間を有する円筒状の胴部１１を有する。 As shown in FIG. 1, the syringe 10 has a cylindrical body portion 11 having an internal space filled with a chemical solution.
胴部１１の先端には、段差部を介して縮径した略円筒形状の首部１２が一体的に形成されている。首部１２の内周面は、胴部１１の内部空間と連通し、かつ、混注ポートや栄養バッグに設けられたオスルアーテーパー（図示せず）と嵌合するメスルアーテーパー１３となっている。 A substantially cylindrical neck portion 12 having a reduced diameter via a stepped portion is integrally formed at the tip of the body portion 11. The inner peripheral surface of the neck portion 12 is a female luer taper 13 that communicates with the internal space of the trunk portion 11 and fits with a male luer taper (not shown) provided in a mixed injection port or a nutrition bag.
図２に示すように、首部１２の外周面には、先端側に一対のリブ１４，１４が設けられている。リブ１４，１４は、それぞれらせん状に傾斜した形状であって、シリンジ１０の軸線を中心として１８０度ずれた位置に点対称に形成されている。 As shown in FIG. 2, a pair of ribs 14, 14 are provided on the outer peripheral surface of the neck portion 12 on the distal end side. Each of the ribs 14 and 14 has a shape inclined in a spiral shape, and is formed point-symmetrically at a position shifted by 180 degrees about the axis of the syringe 10.
以上の構成を備えた首部１２が、本発明のルアーコネクタに相当する。 The neck portion 12 having the above configuration corresponds to the luer connector of the present invention.
本実施形態では、各リブ１４は、平面視において、首部１２の外周面に沿って、それぞれ該外周面の４分の１の長さに形成されている。逆に、首部１２の外周面のうち、基端から先端までリブ１４が設けられていない領域（以下、平坦面１４’という）も、平面視において外周面の４分の１の長さで２つ形成される。 In the present embodiment, each rib 14 is formed along the outer peripheral surface of the neck portion 12 to a quarter length of the outer peripheral surface in plan view. On the contrary, a region where the rib 14 is not provided from the base end to the tip end (hereinafter referred to as a flat surface 14 ′) in the outer peripheral surface of the neck 12 is also a length of one-fourth of the outer peripheral surface in plan view. Formed.
なお、本発明のリブは夫々の間隔を存して設けられていればよいので、本実施形態の形状に限られず、個数が３つ以上であってもよく、長さ・形状は一致していなくてもよく、オスネジを形成するらせん状の条部に対して該条部を分断する切欠部を設けたものであってもよい。 Note that the ribs of the present invention need only be provided at intervals, so that the present invention is not limited to the shape of the present embodiment, and the number of ribs may be three or more, and the length and shape are the same. It does not need to be provided, and may be provided with a notch for dividing the strip with respect to the spiral strip forming the male screw.
また、図１に示すように、胴部１１の後端周縁には、一対の指掛部１５が一体的に形成されている。 Further, as shown in FIG. 1, a pair of finger hook portions 15 are integrally formed on the periphery of the rear end of the body portion 11.
次いで、図１及び図３を参照して滅菌用保護栓２０の構成を説明する。 Next, the configuration of the sterilization protective stopper 20 will be described with reference to FIGS. 1 and 3.
滅菌用保護栓２０は、ポリエチレン、ポリプロピレンなどの合成樹脂によって成形される。 The sterilization protective stopper 20 is formed of a synthetic resin such as polyethylene or polypropylene.
図１に示すように、滅菌用保護栓２０は、円盤状の天板部２１と、天板部２１の周縁から下方に延びる外筒部２２とを有する。 As shown in FIG. 1, the sterilization protective stopper 20 includes a disk-shaped top plate portion 21 and an outer cylinder portion 22 that extends downward from the periphery of the top plate portion 21.
外筒部２２の外周面には、滅菌用保護栓２０の軸線方向から離れる方向に突出する外リブ２３が所定の間隔を存して複数設けられている。外リブ２３は、それぞれ滅菌用保護栓２０の軸線方向に沿って平行に設けられている。 A plurality of outer ribs 23 projecting in a direction away from the axial direction of the sterilization protective stopper 20 are provided on the outer peripheral surface of the outer cylindrical portion 22 at a predetermined interval. The outer ribs 23 are provided in parallel along the axial direction of the sterilization protective stopper 20.
外筒部２２の内周面には、雌ネジ部２４が形成されている。図３に示した外筒部２２の内径ｒ１（雌ネジ部２４の内側に凸の部分間の距離）は、図２に示したシリンジ１０の首部１２の外径ｒ２より大きく、リブ１４，１４外表面間の距離ｒ３より小さく設計されている。 A female screw part 24 is formed on the inner peripheral surface of the outer cylinder part 22. The inner diameter r 1 of the outer tube portion 22 shown in FIG. 3 (the distance between the portion of the convex inner side of the female screw portion 24) is larger than the outer diameter r 2 of the neck portion 12 of the syringe 10 shown in FIG. 2, the ribs 14 , 14 is designed to be smaller than the distance r 3 between the outer surfaces.
雌ネジ部２４によって形成される螺旋状の溝の天板近傍には、一対の内リブ２５，２５（本発明の「係止部」に相当する。）が滅菌用保護栓２０の軸線に沿って平行に設けられている。この内リブ２５，２５は、滅菌用保護栓２０の軸線方向に向かって凸形状に形成され、滅菌用保護栓２０の内周面において、滅菌用保護栓２０の軸線を挟んで対称となる位置に設けられている。 In the vicinity of the top plate of the spiral groove formed by the female screw portion 24, a pair of inner ribs 25, 25 (corresponding to the “locking portion” of the present invention) extends along the axis of the sterilization protective stopper 20. Are provided in parallel. The inner ribs 25, 25 are formed in a convex shape in the axial direction of the sterilization protective stopper 20, and are symmetrical on the inner peripheral surface of the sterilization protective stopper 20 with the axis of the sterilization protective stopper 20 in between. Is provided.
天板部２１の下側面には、中央から下方に延びる円筒状のガイド部２６が設けられている。図３に示すように、ガイド部２６は、天板部２１と底面視において同心円上に配置されている。また、ガイド部２６の外径は、首部１２の内径より小さく成形されているので、滅菌用保護栓２０をシリンジ１０に装着した際、ガイド部２６は首部１２に遊嵌される。なお、本発明のガイド部２６は首部１２に遊嵌されるものであれば足りるため、形状は円筒形に限られず、角筒状・柱状などであってもよい。 A cylindrical guide portion 26 extending downward from the center is provided on the lower surface of the top plate portion 21. As shown in FIG. 3, the guide portion 26 is disposed concentrically with the top plate portion 21 in a bottom view. Further, since the outer diameter of the guide portion 26 is smaller than the inner diameter of the neck portion 12, the guide portion 26 is loosely fitted to the neck portion 12 when the sterilization protective stopper 20 is attached to the syringe 10. In addition, since the guide part 26 of the present invention only needs to be loosely fitted to the neck part 12, the shape is not limited to a cylindrical shape, and may be a rectangular tube shape or a columnar shape.
図１に示すように、天板部２１の下側面には凸状の突起部２７が形成されている。図３に示すように、本実施形態の突起部２７は、等間隔に離れて４つ形成されており、ガイド部２６の基端部外縁から夫々放射状に延設されている。なお、本発明の突起部２７は、天板部２１の下側面が首部１２の先端を封止することがないように、首部１２の先端の一部と接するように形成すれば足りるため、形状は四角柱状に限られず半球状などでもよく、個数は１以上であればよい。 As shown in FIG. 1, a convex protrusion 27 is formed on the lower surface of the top plate 21. As shown in FIG. 3, four protrusions 27 of the present embodiment are formed at regular intervals and extend radially from the outer edge of the base end portion of the guide portion 26. Note that the protrusion 27 of the present invention only needs to be formed so as to be in contact with a part of the tip of the neck 12 so that the lower surface of the top plate 21 does not seal the tip of the neck 12. Is not limited to a quadrangular prism shape, but may be a hemisphere or the like, and the number may be one or more.
以上説明した滅菌用保護栓２０は、シリンジ１０に装着することができる。具体的には、まずシリンジ１０の首部１２に滅菌用保護栓２０を時計回りに回転させながらねじ込んでいく。このとき、ガイド部２６が首部１２の内周面によって支持されるので、滅菌用保護栓２０を首部１２に対して真直ぐに取り付けることができる。 The sterilization protective stopper 20 described above can be attached to the syringe 10. Specifically, first, the sterilization protective stopper 20 is screwed into the neck 12 of the syringe 10 while rotating clockwise. At this time, since the guide portion 26 is supported by the inner peripheral surface of the neck portion 12, the sterilization protective stopper 20 can be attached straight to the neck portion 12.
さらにねじ込んでいくと、図４に示すように、滅菌用保護栓２０の内リブ２５に、シリンジ１０のリブ１４，１４が乗り上げて係止され、滅菌用保護栓２０はシリンジ１０に螺合固定される。 When the screw is further screwed in, as shown in FIG. 4, the ribs 14, 14 of the syringe 10 ride on the inner rib 25 of the sterilization protective stopper 20 and are locked, and the sterilization protective stopper 20 is screwed and fixed to the syringe 10. Is done.
このとき、首部１２の外周面は、リブ１４が形成されていない領域である平坦面１４’，１４’を有するため、平坦面１４’，１４’と滅菌用保護栓２０の外筒部２２の内周面との間には隙間が生じることにより、シリンジ１０の内部空間と外部空間とを連通させる第１流体通路３０が形成される。 At this time, since the outer peripheral surface of the neck portion 12 has flat surfaces 14 ′ and 14 ′ that are regions where the ribs 14 are not formed, the flat surfaces 14 ′ and 14 ′ and the outer cylinder portion 22 of the sterilization protective stopper 20 are provided. A first fluid passage 30 that connects the internal space of the syringe 10 and the external space is formed by forming a gap between the inner peripheral surface and the inner peripheral surface.
また、首部１２の先端面は、滅菌用保護栓２０の天板部２１に設けられた突起部２７と接する。これにより、天板部２１の下側面と首部１２の先端面との間には隙間が生じることにより、シリンジ１０の内部空間と外部空間とを連通させる第２流体通路３１（本発明の「流体通路」に相当する。）が形成される。 Further, the front end surface of the neck portion 12 is in contact with a protruding portion 27 provided on the top plate portion 21 of the sterilization protective stopper 20. As a result, a gap is formed between the lower side surface of the top plate portion 21 and the front end surface of the neck portion 12, so that the second fluid passage 31 (the “fluid” of the present invention) communicates the internal space and the external space of the syringe 10. Corresponding to “passage”).
次いで、図４を用いて、本実施形態の滅菌用保護栓付きシリンジ１をガス（ＥＯＧ）によって滅菌したときのガスの流れを説明する。なお、図４では、シリンジ１０の内部空間から外部空間へガスが流れる様子を説明するが、これは例示であって、流れる方向は、逆であってもよい。また、滅菌は、ＥＯＧガス殺菌に限られず、過酸化水素低温ガスプラズマ殺菌、過酸化水素ガス低温殺菌、低温蒸気ホルムアルデヒド殺菌などでもよい。 Next, the flow of gas when the syringe 1 with the protective stopper for sterilization of this embodiment is sterilized with gas (EOG) will be described with reference to FIG. In addition, although FIG. 4 demonstrates a mode that gas flows from the internal space of the syringe 10 to external space, this is an illustration and the flow direction may be reverse. Sterilization is not limited to EOG gas sterilization, and may be hydrogen peroxide low temperature gas plasma sterilization, hydrogen peroxide gas low temperature sterilization, low temperature steam formaldehyde sterilization, or the like.
図４に示すように、滅菌用のガスは、シリンジ１０の胴部１１の基端側から内部空間に流入され、首部１２の先端側まで達する。そして、天板部２１の下側面と首部１２の先端面との間に生じた第２流体通路３１を通過し、次いで、首部１２の外周面と滅菌用保護栓２０の外筒部２２の内周面との間に生じた第１流体通路３０を通過して、胴部１１の外部空間に流出する。 As shown in FIG. 4, the sterilizing gas flows into the internal space from the proximal end side of the body portion 11 of the syringe 10 and reaches the distal end side of the neck portion 12. Then, it passes through the second fluid passage 31 formed between the lower side surface of the top plate portion 21 and the front end surface of the neck portion 12, and then the inner surface of the outer peripheral surface of the neck portion 12 and the outer cylinder portion 22 of the sterilization protective stopper 20. It passes through the first fluid passage 30 generated between the outer peripheral surface and the outer surface of the trunk portion 11 and flows out.
以上の滅菌処理が完了した後には、空気をシリンジ１０の胴部１１の基端側から内部空間に同様に流入させることにより、ガスを除去する。 After the above sterilization process is completed, the gas is removed by causing air to similarly flow into the internal space from the proximal end side of the body 11 of the syringe 10.
以上説明したとおり、本実施形態の本実施形態の滅菌用保護栓付きシリンジ１によれば、シリンジ１０に滅菌用保護栓２０を装着した状態で、確実にガス滅菌できるとともに、確実にガスを確実に除去することができる。 As described above, according to the syringe 1 with the protective cap for sterilization of the present embodiment of the present embodiment, the sterilization protective cap 20 is attached to the syringe 10 and the gas can be reliably sterilized and the gas can be reliably Can be removed.
（変形例）
図５Ａ及び図５Ｂを用いて、変形例にかかる滅菌用保護栓２０’を説明する。滅菌用保護栓２０’は、以下に説明する構成以外は滅菌用保護栓２０と同様であるため、滅菌用保護栓２０と同様の構成は、同様の符号が付して説明を省略する。
(Modification)
A sterilization protective stopper 20 ′ according to a modification will be described with reference to FIGS. 5A and 5B. Since the sterilization protective plug 20 ′ is the same as the sterilization protective plug 20 except for the configuration described below, the same configuration as the sterilization protective plug 20 is denoted by the same reference numeral, and the description thereof is omitted.
滅菌用保護栓２０’は、雌ネジ部２４を形成している滅菌用保護栓２０’の軸線方向に凸状の螺旋状条部の一部を分断する切欠部２８をさらに有する。各切欠部２８は、滅菌用保護栓２０’の軸線方向に沿って平行に形成されている。 The sterilization protective plug 20 ′ further includes a notch 28 that divides a part of the spiral strip that is convex in the axial direction of the sterilization protective plug 20 ′ forming the female screw portion 24. Each notch 28 is formed in parallel along the axial direction of the sterilization protective stopper 20 '.
本変形例では、切欠部２８は、図５Ｂに示すように底面視において、外筒部２２の内周面に６箇所等間隔に設けられている。また、螺旋状条部の配置によって増減するが、図５Ａでは、２箇所に切欠部２８が形成され、両切欠部２８は、上下方向に平行に配置されている。 In the present modification, the cutout portions 28 are provided at six equal intervals on the inner peripheral surface of the outer cylindrical portion 22 in a bottom view as shown in FIG. 5B. Moreover, although it increases / decreases by arrangement | positioning of a spiral strip part, in FIG. 5A, the notch part 28 is formed in two places and both the notch parts 28 are arrange | positioned in parallel with the up-down direction.
これにより、首部１２の外周面と滅菌用保護栓２０の外筒部２２の内周面との間には隙間が生じることにより、シリンジ１０の内部空間と外部空間とを連通させる第３流体通路（図示せず）が形成される。 As a result, a gap is formed between the outer peripheral surface of the neck portion 12 and the inner peripheral surface of the outer cylinder portion 22 of the sterilization protective stopper 20, whereby the third fluid passage that communicates the internal space and the external space of the syringe 10. (Not shown) is formed.
また、該第３流体通路の上方に内リブ２５が配置される位置に切欠部２８，２８は形成されている。 Further, notches 28 are formed at positions where the inner ribs 25 are disposed above the third fluid passage.
以上説明した変形例にかかる滅菌用保護栓２０’によれば、第３流体通路によって、さらに、首部１２の外周面と滅菌用保護栓２０の外筒部２２の内周面との間を通気自在にすることができる。また、内リブ２５にはリブ１４が係止されるので、該内リブ２５の下方に配置される第３流体通路に流体が流入するためには、リブ１４の外周に沿って流体が移動することになる。この結果、リブ１４を確実にガス滅菌し、該ガスを確実に除去することができる。 According to the sterilization protective plug 20 ′ according to the modified example described above, the third fluid passage further ventilates between the outer peripheral surface of the neck portion 12 and the inner peripheral surface of the outer cylinder portion 22 of the sterilization protective plug 20. It can be made freely. Further, since the rib 14 is locked to the inner rib 25, the fluid moves along the outer periphery of the rib 14 in order for the fluid to flow into the third fluid passage disposed below the inner rib 25. It will be. As a result, the rib 14 can be reliably sterilized and the gas can be reliably removed.
１…滅菌用保護栓付きシリンジ（滅菌用保護栓付きコネクタ）、 １０…シリンジ、 １２…首部（ルアーコネクタ）、 １４…リブ、 ２０…滅菌用保護栓、 ２１…天板部、 ２２…外筒部、 ２４…雌ネジ部、 ２５…係止部（内リブ）、 ２６…ガイド部、 ２７…突起部。
DESCRIPTION OF SYMBOLS 1 ... Syringe with a protective stopper for sterilization (connector with a protective stopper for sterilization), 10 ... Syringe, 12 ... Neck part (luer connector), 14 ... Rib, 20 ... Protective stopper for sterilization, 21 ... Top plate part, 22 ... Outer cylinder , 24 ... female screw part, 25 ... locking part (inner rib), 26 ... guide part, 27 ... projection part.
Claims (5)
円盤状の天板部と、該天板部の周縁から下方に延びる外筒部と、該外筒部の内周面に形成された雌ネジ部と、前記天板部の下側面から下方に延びて前記ルアーコネクタの先端面の一部と接触する突起部とを有することを特徴とする滅菌用保護栓。 A sterilization protective stopper that is screwed and locked in a state of being fitted on the tip of the luer connector,
A disk-shaped top plate portion, an outer cylinder portion extending downward from the periphery of the top plate portion, a female screw portion formed on the inner peripheral surface of the outer cylinder portion, and downward from the lower side surface of the top plate portion A sterilization protective stopper characterized by having a protrusion that extends and contacts a part of the tip end surface of the luer connector.
前記天板部には、該天板部の下側面から下方に延びて前記ルアーコネクタの先端開口から内部に遊嵌されるガイド部が設けられていることを特徴とする滅菌用保護栓。 The sterilization protective stopper according to claim 1,
A sterilization protective stopper, wherein the top plate portion is provided with a guide portion that extends downward from a lower surface of the top plate portion and is loosely fitted into the inside from the tip opening of the luer connector.
前記ガイド部は、前記天板部の下側面の中央部に設けられ、
前記突起部は、前記ガイド部の基端部外縁から放射状に延設されていることを特徴とする滅菌用保護栓。 The sterilization protective stopper according to claim 2,
The guide portion is provided at a central portion of the lower surface of the top plate portion,
The sterilization protective plug according to claim 1, wherein the protrusions extend radially from the outer edge of the proximal end portion of the guide portion.
前記保護栓の外筒部の内周面には、該内周面から該外筒部の軸線方向に向かって凸形状であって、前記ルアーコネクタの外周面を当接して係止する係止部を有することを特徴とする滅菌用保護栓。 The sterilization protective stopper according to any one of claims 1 to 3,
The inner peripheral surface of the outer cylindrical portion of the protective plug is a convex shape from the inner peripheral surface toward the axial direction of the outer cylindrical portion, and the outer peripheral surface of the luer connector is brought into contact with and locked. A protective stopper for sterilization characterized by having a part.
前記ルアーコネクタの外周面には、前記雌ネジ部と螺合する複数のリブが所定の間隔を存して設けられていることを特徴とする滅菌用保護栓付きコネクタ。
A connector with a sterilization protective stopper comprising the sterilization protective stopper according to any one of claims 1 to 4 and the luer connector.
A connector with a protective stopper for sterilization, wherein a plurality of ribs that are screwed into the female thread portion are provided at predetermined intervals on an outer peripheral surface of the luer connector.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017053256A JP6982750B2 (en) | 2017-03-17 | 2017-03-17 | Sterilization protective stopper and connector with sterilization protective stopper |
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| JP2017053256A JP6982750B2 (en) | 2017-03-17 | 2017-03-17 | Sterilization protective stopper and connector with sterilization protective stopper |
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| JP6982750B2 JP6982750B2 (en) | 2021-12-17 |
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| WO2015033954A1 (en) * | 2013-09-06 | 2015-03-12 | テルモ株式会社 | Outer tube for syringe and pre-filled syringe |
| JP2017506115A (en) * | 2014-02-20 | 2017-03-02 | レプロ−メッド システムズ、インコーポレーテッド | Medical connectors, connectors and kits |
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| US6152913A (en) * | 1995-04-27 | 2000-11-28 | The Kippgroup | Medical luer connection having protective cap with crush rib |
| US6632199B1 (en) * | 2000-05-23 | 2003-10-14 | Becton Dickinson And Company | Syringe assembly including plastic tip cap |
| JP2002028233A (en) * | 2000-07-13 | 2002-01-29 | Nikkiso Co Ltd | Cap of instrument for hematocatharsis and instrument mounted with the same |
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| JP6982750B2 (en) | 2021-12-17 |
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