JP4456388B2 - Mixed injection member and medical device - Google Patents

Mixed injection member and medical device Download PDF

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JP4456388B2
JP4456388B2 JP2004085976A JP2004085976A JP4456388B2 JP 4456388 B2 JP4456388 B2 JP 4456388B2 JP 2004085976 A JP2004085976 A JP 2004085976A JP 2004085976 A JP2004085976 A JP 2004085976A JP 4456388 B2 JP4456388 B2 JP 4456388B2
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plug
circumferential rib
port
side wall
cap
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JP2005270249A (en
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邦春 浜崎
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Kawasumi Laboratories Inc
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本発明は、薬液等を注入する混注部材の改良に関する。本発明の混注部材は、血液回路、薬液容器、輸血・輸液セット等の医療用具に使用される。   The present invention relates to an improvement in a co-infusion member for injecting a chemical solution or the like. The mixed injection member of the present invention is used for medical devices such as blood circuits, drug solution containers, and blood transfusion / infusion sets.

例えば特許文献１には、中心部に直線状のカット部又はスリット部を上下方向に貫通して形成した弾性体よりなる栓本体の上面周囲に環状凹溝を設け、該栓本体を薬液等の注入抽出口に固着するためのキャップの内面に前記環状凹溝に嵌合する該環状凹溝よりも体積が大きい環状凸部を形成し、前記環状凸部を環状凹溝に圧入することによって、前記カット部又はスリット部に締付圧を発生させて密封するようにした薬液等注入抽出口用密封装置の発明が開示されている。
また特許文献２には、混注管２００の着座部２０８とキャップ部材１０２の下面によって外周部１８が厚さ方向に圧縮され、かつ、混注管２００の円筒状壁部２０７によって内径方向に圧縮され、シール弁体１１の中央部に大きな圧縮応力が作用するように形成し、さらに、シール弁体１１の中央部を、内側１９および外側２０をそれぞれアーチ型凹部形状にすることにより、挿通部１２の近傍ではより大きな圧縮応力が作用するようにしたシール弁及び注射器接続ポートの発明が開示されている。 For example, in Patent Document 1, an annular groove is provided around the upper surface of a plug body made of an elastic body formed by penetrating a straight cut portion or slit portion in the vertical direction at the center, and the plug body is made of a chemical solution or the like. By forming an annular convex portion having a larger volume than the annular concave groove fitted into the annular concave groove on the inner surface of the cap for fixing to the injection extraction port, and press-fitting the annular convex portion into the annular concave groove, An invention of a sealing device for an injection / extraction port for chemicals, etc., in which a sealing pressure is generated in the cut portion or the slit portion for sealing is disclosed.
In Patent Document 2, the outer peripheral portion 18 is compressed in the thickness direction by the seating portion 208 of the mixed injection tube 200 and the lower surface of the cap member 102, and is compressed in the inner diameter direction by the cylindrical wall portion 207 of the mixed injection tube 200. The seal valve body 11 is formed so that a large compressive stress acts on the center portion thereof. Further, the center portion of the seal valve body 11 is formed into an arch-shaped recess shape on the inner side 19 and the outer side 20, respectively. An invention of a seal valve and a syringe connection port in which a greater compressive stress is applied in the vicinity is disclosed.

特許文献１に記載の発明では、栓体の上側から締付圧力を付与するので、スリット部に締付圧力を集中させにくいことが懸念される。特許文献２に記載の発明では、栓体の中央を薄肉にして、締付圧力を付与するので、栓体のシール性が懸念される。   In the invention described in Patent Document 1, since the tightening pressure is applied from the upper side of the plug body, there is a concern that it is difficult to concentrate the tightening pressure on the slit portion. In the invention described in Patent Document 2, since the center of the plug body is thinned and a tightening pressure is applied, there is a concern about the sealing performance of the plug body.

特開２００２−３０６６１０号公報（図１０参照）JP 2002-306610 A (see FIG. 10) 特開２００３−３２５６７５号公報（図１、図３参照）JP 2003-325675 A (see FIGS. 1 and 3)

本発明が解決しようとする問題点は、栓体のスリットに締付圧力を集中させにくい点、栓体のスリットのシール性に難点がある点である。   The problems to be solved by the present invention are that it is difficult to concentrate the tightening pressure on the slit of the plug and there is a problem in the sealing performance of the slit of the plug.

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。
［１］本発明は、第１方向と当該第１方向に略垂直に交わる第２方向とを有するハウジング（２）と、
第１方向と当該第１方向に略垂直に交わる第２方向とを有する栓体（５）と、第１方向と当該第１方向に略垂直に交わる第２方向とを有するキャップ（１０）とを有し、
前記ハウジング（２）は、第２方向の上部にポート（３）を突設し、当該ポート（３）の外周に係合部（４）を形成し、
前記栓体（５）は、スリット（６）を有し、当該スリット（６）は、当該栓体（５）の第２方向に沿うように、第２方向の上部から第２方向の途中に至るまで形成するか、または第２方向の上部から下部に亘って形成し、
前記キャップ（１０）は、円筒状の側壁（１３）と、板状の天上壁（１４）とを有し、
前記円筒状の側壁（１３）の内側に、空間（Ｓ）を隔てて、円周リブ（１６）を形成し、
当該円筒状の側壁（１３）の内周に係合部（１５）を形成し、
当該側壁（１３）の係合部（１５）と、前記ポート（３）の係合部（４）とは、相互に係合できる形状に形成し、
前記円周リブ（１６）は、環状に連続に形成した筒体、または一部不連続に間隔をおいて形成した複数の突起より形成し、
当該円周リブ（１６）の内径は、前記栓体（５）の外径よりも若干小さく形成し、
前記栓体（５）を、前記キャップ（１０）の円周リブ（１６）で囲まれる内部空間（１６Ｓ）内に、圧入・嵌合することにより、前記栓体（５）に第一次締付圧力を付与し、
前記側壁（１３）と前記円周リブ（１６）との間に形成された空間（Ｓ）に、前記ポート（３）を圧入・嵌合することにより、前記栓体（５）に外周から、前記ポート（３）と前記円周リブ（１６）とにより、第二次締付圧力を付与した混注部材（１）を提供する。
［２］本発明は、［１］に記載の混注部材（１）を含む医療用具を提供する。
Therefore, as a result of intensive studies to solve the above problems, the present inventor has reached the following invention.
[1] The present invention includes a housing (2) having a first direction and a second direction that intersects the first direction substantially perpendicularly;
A plug (5) having a first direction and a second direction intersecting substantially perpendicularly with the first direction, and a cap (10) having a first direction and a second direction intersecting substantially perpendicularly with the first direction. Have
The housing (2) has a port (3) protruding from the upper part in the second direction, and an engaging portion (4) is formed on the outer periphery of the port (3).
The plug (5) has a slit (6), and the slit (6) extends from the upper part of the second direction to the middle of the second direction so as to follow the second direction of the plug (5). Or formed from the top to the bottom in the second direction,
The cap (10) has a cylindrical side wall (13) and a plate-like top wall (14),
A circumferential rib (16) is formed inside the cylindrical side wall (13) with a space (S) therebetween,
An engagement portion (15) is formed on the inner periphery of the cylindrical side wall (13),
The engaging portion (15) of the side wall (13) and the engaging portion (4) of the port (3) are formed into shapes that can be engaged with each other,
The circumferential rib (16) is formed from a cylindrical body formed continuously in a ring shape or a plurality of protrusions formed partially discontinuously,
The inner diameter of the circumferential rib (16) is slightly smaller than the outer diameter of the plug (5),
The plug (5) is press-fitted and fitted into the internal space (16S) surrounded by the circumferential rib (16) of the cap (10), so that the plug (5) is subjected to primary fastening. Apply pressure,
By press-fitting and fitting the port (3) into the space (S) formed between the side wall (13) and the circumferential rib (16), the plug (5) from the outer periphery, The port (3) and the circumferential rib (16) provide a mixed injection member (1) to which a secondary tightening pressure is applied .
[ 2 ] The present invention provides a medical device including the co-injection member (1) according to [ 1 ].

本発明の混注部材１は、（１）キャップ１０の側壁１３の内側に、円周リブ１６を形成することにより、栓体５の上面（上部）により強い締め付け力を付与することができ、スリット６にアダプター等の注入口を挿入した時のシール性が向上する。（円周リブ１６がない場合は、栓体５の下部に強い締め付け圧が発生し、スリット６に注入口を挿入した時のシール性が弱くなる）
（２）ハウジング２に突設されたポート３を前記キャップ１０の側壁１３と円周リブ１６の間に形成された空間Ｓに装着しているので、[円周リブ１６を形成していない特許文献１に記載の発明（単に上から押さえつけるのみ）と比較して]キャップ１０とポート３の嵌合力が強くなり、キャップ１０が抜けにくくなる。
（３）前記（１）と（２）により、ポート３と円周リブ１６の両方から二重に栓体５の上面（上部）により強い締め付け力を付与することができるので、特許文献１、特許文献２の発明と比較して、スリット６に注入口を挿入した時のシール性が確実に向上する。 In the mixed injection member 1 of the present invention, (1) by forming the circumferential rib 16 on the inner side of the side wall 13 of the cap 10, a stronger tightening force can be applied to the upper surface (upper part) of the plug body 5. The sealing performance when an inlet such as an adapter is inserted into 6 is improved. (If there is no circumferential rib 16, a strong clamping pressure is generated at the bottom of the plug 5, and the sealing performance when the inlet is inserted into the slit 6 is weakened)
(2) Since the port 3 projecting from the housing 2 is mounted in the space S formed between the side wall 13 and the circumferential rib 16 of the cap 10, [ Patent without forming the circumferential rib 16] compared to the invention described (simply only pressed from the top) in Document 1] fitting force of the cap 10 and the port 3 becomes strong, it becomes difficult to pull out cap 10.
(3) According to the above (1) and (2), a strong tightening force can be applied to the upper surface (upper part) of the plug body 5 from both the port 3 and the circumferential rib 16, so that Patent Document 1, Compared with the invention of Patent Document 2, the sealing performance when the injection port is inserted into the slit 6 is reliably improved.

図１は本発明の混注部材１の分解図、図２は断面図である。
［混注部材１の概要］
本発明の混注部材１は、第１方向（長手方向）と当該第１方向に略垂直に交わる第２方向（短手方向）とを有するハウジング２と、第１方向（長手方向または半径方向）と当該第１方向に略垂直に交わる第２方向（短手方向、または縦断面方向、または上下方向）とを有する栓体５と、第１方向（長手方向または半径方向）と当該第１方向に略垂直に交わる第２方向（短手方向または上下方向）とを有するキャップ１０とを有する。
キャップ１０の側壁１３の内側に、円周リブ１６を形成し、当該円周リブ１６の内側にスリット６を形成した栓体５を装着し、ハウジング２の第２方向上部に突設されたポート３を前記キャップ１０の側壁１３と円周リブ１６の間に形成された空間Ｓに装着している。
FIG. 1 is an exploded view of the mixed injection member 1 of the present invention, and FIG. 2 is a sectional view.
[Overview of mixed injection member 1]
The mixed injection member 1 of the present invention includes a housing 2 having a first direction (longitudinal direction) and a second direction (short direction) that intersects the first direction substantially perpendicularly, and a first direction (longitudinal direction or radial direction). And a plug body 5 having a second direction (short direction, longitudinal section direction, or vertical direction) intersecting substantially perpendicularly to the first direction, and the first direction (longitudinal direction or radial direction) and the first direction. And a cap 10 having a second direction (short direction or vertical direction) intersecting substantially perpendicularly.
A port which is formed with a circumferential rib 16 on the inner side of the side wall 13 of the cap 10 and a plug body 5 having a slit 6 formed on the inner side of the circumferential rib 16 and which projects from the upper part of the housing 2 in the second direction. 3 is mounted in a space S formed between the side wall 13 of the cap 10 and the circumferential rib 16.

［キャップ１０］
キャップ１０は図１から図２に例示するように、円筒状の側壁１３と板状の天上壁１４より構成され、円筒状の側壁１３の内側（内周）に、空間（Ｓ）を隔てて円周リブ１６が形成されている。
円周リブ１６とは、例えば環状に連続ないし一部不連続に間隔をおいて形成される筒体ないし複数の突起で、円周リブ１６の内径は、栓体５の外径よりも若干小さく形成して、キャップ１０の円周リブ１６で囲まれる内部空間１６Ｓに栓体５を実質的に隙間なく圧入・嵌合できるように形成されている。
側壁１３と円周リブ１６の間に形成された空間Ｓは、ハウジング２に突設されたポート３が実質的に隙間なく圧入・嵌合できるように形成されている。
[Cap 10]
As illustrated in FIGS. 1 to 2, the cap 10 includes a cylindrical side wall 13 and a plate-like top wall 14, and a space (S) is separated from the inner side (inner periphery) of the cylindrical side wall 13. A circumferential rib 16 is formed.
The circumferential rib 16 is, for example, a cylindrical body or a plurality of protrusions formed continuously or partially discontinuously in an annular shape, and the inner diameter of the circumferential rib 16 is slightly smaller than the outer diameter of the plug body 5. The plug body 5 is formed so that it can be press - fitted and fitted into the internal space 16S surrounded by the circumferential rib 16 of the cap 10 with substantially no gap .
A space S formed between the side wall 13 and the circumferential rib 16 is formed so that the port 3 protruding from the housing 2 can be press - fitted and fitted substantially without a gap .

［栓体５］
またポート３に装填される栓体５は、アダプター（図示せず）の細径部（注入口）を挿入可能なスリット６付きの栓体５であれば何でも良い。スリット６の形態も細径部（注入口）を挿入可能な形態[例えば縦断面方向の上端（上部）から途中に亘って形成されているものあるいは縦断面の上端（上部）から下端（下部）に亘って形成されたもの等]であれば何でも良い。
また図１の例示では、栓体５はポート３の内部に配置されているが、ポート３の下部に配置（厳密にいえば、ポート３下部とハウジング２の上段部との間）しても良い。
ポート３とキャップ１０は、それぞれの係合部４と、係合部１５とで係合される。係合部４、１５は相互に係合できる形状に形成されている。具体的には、突起と溝で、相互に入れ替わっても良い。
[Plug 5]
The plug body 5 loaded in the port 3 may be anything as long as it is a plug body 5 with a slit 6 into which a small diameter portion (injection port) of an adapter (not shown) can be inserted. The form of the slit 6 can also be inserted into the narrow-diameter part (injection port) [ for example, formed from the upper end (upper part) in the longitudinal section direction , or the upper end (upper part) to the lower end (lower part) of the longitudinal section. may be any ones, etc.] formed over the.
In the illustration of FIG. 1, the plug body 5 is disposed inside the port 3, but may be disposed at the lower part of the port 3 (strictly speaking, between the lower part of the port 3 and the upper part of the housing 2). good.
The port 3 and the cap 10 are engaged with each other by the engaging portion 4 and the engaging portion 15. The engaging portions 4 and 15 are formed in shapes that can be engaged with each other. Specifically, the protrusions and the grooves may be interchanged.

［組み立て方法］
図１と図２を参照にして、混注部材１の組み立て方法の一例について説明する。
（１）図１に例示するように、キャップ１０の円周リブ１６内に栓体５を圧入・嵌合する。
さらに詳述すれば、栓体５を、キャップ１０の円周リブ１６で囲まれる内部空間１６Ｓ内に実質的に隙間なく、圧入・嵌合することにより、円周リブ１６により栓体５に第一次締付圧力が付与される。
（２）ハウジング２に突設されたポート３を、前記（１）のキャップ１０の側壁１３と円周リブ１６の間に形成された空間Sに圧入・嵌合する。
これによりポート３と円周リブ１６の両方で二重に栓体５に第二次締付圧力を付与することができる。
[Assembly method]
With reference to FIG. 1 and FIG. 2, an example of the assembly method of the mixed injection member 1 is demonstrated.
(1) As illustrated in FIG. 1, the plug 5 is press - fitted and fitted into the circumferential rib 16 of the cap 10.
More specifically, the plug body 5 is press-fitted and fitted into the internal space 16S surrounded by the circumferential rib 16 of the cap 10 with substantially no gap, whereby the plug body 5 is inserted into the plug body 5 by the circumferential rib 16 . Primary clamping pressure is applied.
(2) the port 3 projecting from the housing 2, is pressed-fitted in the space S formed between the side wall 13 and the circumferential rib 16 of the cap 10 of the (1).
Thereby, the secondary tightening pressure can be applied to the plug body 5 by both the port 3 and the circumferential rib 16 in a double manner.

本発明の混注部材１の分解図Exploded view of the mixed injection member 1 of the present invention 本発明の混注部材１の断面図Sectional drawing of the mixed injection member 1 of this invention

符号の説明Explanation of symbols

１ 混注部材
２ ハウジング
３ ポート
４ 係合部
５ 栓体
６ スリット
１０ キャップ
１１ 開口部
１３ 側壁
１４ 天上壁
１５ 係合部
１６ 円周リブ
１６Ｓ 内部空間
DESCRIPTION OF SYMBOLS 1 Mixed injection member 2 Housing 3 Port 4 Engagement part 5 Plug body 6 Slit 10 Cap 11 Opening part 13 Side wall 14 Top wall 15 Engagement part 16 Circumferential rib
16S interior space

Claims (2)

第１方向と当該第１方向に略垂直に交わる第２方向とを有するハウジング（２）と、A housing (2) having a first direction and a second direction substantially perpendicular to the first direction;
第１方向と当該第１方向に略垂直に交わる第２方向とを有する栓体（５）と、第１方向と当該第１方向に略垂直に交わる第２方向とを有するキャップ（１０）とを有し、A plug (5) having a first direction and a second direction intersecting substantially perpendicularly with the first direction, and a cap (10) having a first direction and a second direction intersecting substantially perpendicularly with the first direction. Have
前記ハウジング（２）は、第２方向の上部にポート（３）を突設し、当該ポート（３）の外周に係合部（４）を形成し、The housing (2) has a port (3) protruding from the upper part in the second direction, and an engaging portion (4) is formed on the outer periphery of the port (3)
前記栓体（５）は、スリット（６）を有し、当該スリット（６）は、当該栓体（５）の第２方向に沿うように、第２方向の上部から第２方向の途中に至るまで形成するか、または第２方向の上部から下部に亘って形成し、The plug (5) has a slit (6), and the slit (6) extends from the upper part of the second direction to the middle of the second direction so as to follow the second direction of the plug (5). Or formed from the top to the bottom in the second direction,
前記キャップ（１０）は、円筒状の側壁（１３）と、板状の天上壁（１４）とを有し、The cap (10) has a cylindrical side wall (13) and a plate-like top wall (14),
前記円筒状の側壁（１３）の内側に、空間（Ｓ）を隔てて、円周リブ（１６）を形成し、A circumferential rib (16) is formed inside the cylindrical side wall (13) with a space (S) therebetween,
当該円筒状の側壁（１３）の内周に係合部（１５）を形成し、An engagement portion (15) is formed on the inner periphery of the cylindrical side wall (13),
当該側壁（１３）の係合部（１５）と、前記ポート（３）の係合部（４）とは、相互に係合できる形状に形成し、The engaging portion (15) of the side wall (13) and the engaging portion (4) of the port (3) are formed into shapes that can be engaged with each other,
前記円周リブ（１６）は、環状に連続に形成した筒体、または一部不連続に間隔をおいて形成した複数の突起より形成し、The circumferential rib (16) is formed of a cylindrical body formed continuously in an annular shape, or a plurality of protrusions formed partially discontinuously,
当該円周リブ（１６）の内径は、前記栓体（５）の外径よりも若干小さく形成し、The inner diameter of the circumferential rib (16) is slightly smaller than the outer diameter of the plug (5),
前記栓体（５）を、前記キャップ（１０）の円周リブ（１６）で囲まれる内部空間（１６Ｓ）内に、圧入・嵌合することにより、前記栓体（５）に第一次締付圧力を付与し、The plug (5) is press-fitted and fitted into the internal space (16S) surrounded by the circumferential rib (16) of the cap (10), so that the plug (5) is subjected to primary fastening. Apply pressure,
前記側壁（１３）と前記円周リブ（１６）との間に形成された空間（Ｓ）に、前記ポート（３）を圧入・嵌合することにより、前記栓体（５）に外周から、前記ポート（３）と前記円周リブ（１６）とにより、第二次締付圧力を付与したことを特徴とする混注部材（１）。By press-fitting and fitting the port (3) into the space (S) formed between the side wall (13) and the circumferential rib (16), the plug (5) from the outer periphery, A mixed injection member (1), wherein a secondary tightening pressure is applied by the port (3) and the circumferential rib (16). 請求項１に記載の混注部材（１）を含むことを特徴とする医療用具。
A medical device comprising the mixed injection member (1) according to claim 1 .
JP2004085976A 2004-03-24 2004-03-24 Mixed injection member and medical device Expired - Fee Related JP4456388B2 (en)

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JP5804613B2 (en) * 2014-07-30 2015-11-04 内外化成株式会社 Medical cap and method for manufacturing the same

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US4331233A (en) * 1980-05-30 1982-05-25 The Upjohn Company Activation closure for vial
WO2002045648A1 (en) * 2000-12-04 2002-06-13 Jms Co., Ltd. Plug body for chemical container
JP2002306610A (en) * 2001-02-09 2002-10-22 Fukai Kogyo Kk Seal valve for medicinal solution injection and extraction hole

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