JP2005270249A - Mixed injection member and medical treatment device - Google Patents

Mixed injection member and medical treatment device Download PDF

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JP2005270249A
JP2005270249A JP2004085976A JP2004085976A JP2005270249A JP 2005270249 A JP2005270249 A JP 2005270249A JP 2004085976 A JP2004085976 A JP 2004085976A JP 2004085976 A JP2004085976 A JP 2004085976A JP 2005270249 A JP2005270249 A JP 2005270249A
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cap
circumferential rib
port
mixed injection
side wall
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JP4456388B2 (en
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Kuniharu Hamazaki
邦春 浜崎
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SB Kawasumi Laboratories Inc
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Kawasumi Laboratories Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a mixed injection member which can apply a stronger force for fastening to an upper surface of a stopper body, shows improved sealing performance in inserting an infusion port of an adaptor or the like into a slit, has stronger force in fitting a cap in a port, and prevents the cap from coming off, and a medical treatment device. <P>SOLUTION: The mixed injection member (1) has a circumferential rib (16) formed inside a side wall (13) of the cap (10), the stopper body (5) which has the slit (6) and is attached to the inside of the circumferential rib (16), and a port (3) which is protruded on a housing (2) and is attached to a space (S) formed between the side wall (13) and the circumferential rib (16) of the cap (10). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

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 of 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、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）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）に装着した混注部材（１）を提供する。
［２］本発明は、栓体（５）にキャップ（１０）の側壁（１３）及び円周リブ（１６）の両方で二重に締付圧力を付与できるようにした［１］に記載の混注部材（１）を提供する。
［３］本発明は、［１］ないし［２］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 forms a circumferential rib (16) on the inside of the side wall (13) of the cap (10),
A stopper (5) having a slit (6) formed inside the circumferential rib (16) is attached,
A mixed injection member (1) in which a port (3) protruding from the housing (2) is mounted in a space (S) formed between the side wall (13) of the cap (10) and the circumferential rib (16). I will provide a.
[2] The present invention described in [1], wherein the plug body (5) can be applied with a double clamping pressure by both the side wall (13) and the circumferential rib (16) of the cap (10). A mixed injection member (1) is provided.
[3] The present invention provides a medical device including the co-infusion member (1) according to [1] or [2].

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、円周リブ１６及び側壁１３の両方から二重に栓体５の上面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, it is possible to apply a stronger tightening force to the upper surface of the plug body 5, and The sealing performance when an injection port such as is inserted is improved. (If there is no circumferential rib 16, a strong clamping pressure is generated at the bottom of the plug body 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 (a patent in which the circumferential rib 16 is not formed) The fitting force between the cap 10 and the port 3 becomes strong (compared to the invention described in Document 1 (simply pressing only from above)), and the cap 10 is difficult to come off.
(3) According to the above (1) and (2), a strong tightening force can be applied to the upper surface of the plug body 5 from both the circumferential rib 16 and the side wall 13, so that Patent Document 1 and Patent Document 2 are used. Compared with the present invention, 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、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]
In the mixed injection member 1 of the present invention, a circumferential rib 16 is formed on the inner side of the side wall 13 of the cap 10, and a plug body 5 having a slit 6 is formed on the inner side of the circumferential rib 16. The formed port 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、内部空間に栓体５を装着（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が装着（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 circumferential rib 16 is formed on the inner side (inner circumference) of the cylindrical side wall 13. Yes.
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. It is formed so that the plug body 5 can be mounted (press-fit, fitted) in the internal space.
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 mounted (press-fit, fitted).

［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（例えば縦断面の上端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から下端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は係合部４、１５（具体的には、突起と溝で、相互に入れ替わっても良い）により係合される。 [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 is also a form in which a small diameter part (injection port) can be inserted (for example, formed from the upper end of the longitudinal section to the middle or formed from the upper end to the lower end of the longitudinal section). Anything is fine.
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 engaging portions 4 and 15 (specifically, protrusions and 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を装着（圧入、嵌合）する。これにより円周リブ１６により栓体５に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（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に装着（圧入、嵌合）する。これによりキャップ１０の側壁１３と円周リブ１６の両方で二重に栓体５に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 body 5 is mounted (press-fit, fitted) in the circumferential rib 16 of the cap 10. As a result, a clamping pressure is applied to the plug body 5 by the circumferential rib 16.
(2) The port 3 protruding from the housing 2 is mounted (press-fitted, fitted) into the space S formed between the side wall 13 of the cap 10 and the circumferential rib 16 in (1). As a result, it is possible to apply a tightening pressure to the plug body 5 by both the side wall 13 and the circumferential rib 16 of the cap 10.

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 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

Claims (3)

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）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）に装着した、ことを特徴とする混注部材（１）。 Forming a circumferential rib (16) on the inside of the side wall (13) of the cap (10);
A stopper (5) having a slit (6) formed inside the circumferential rib (16) is attached,
The port (3) protruding from the housing (2) is mounted in a space (S) formed between the side wall (13) and the circumferential rib (16) of the cap (10). Mixed injection member (1). 栓体（５）にキャップ（１０）の側壁（１３）及び円周リブ（１６）の両方で二重に締付圧力を付与できるようにしたことを特徴とする請求項１に記載の混注部材（１）。   2. The co-infusion member according to claim 1, wherein the plug body (5) can be given a double clamping pressure by both the side wall (13) and the circumferential rib (16) of the cap (10). (1). 請求項１ないし請求項２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 or 2.
JP2004085976A 2004-03-24 2004-03-24 Mixed injection member and medical device Expired - Fee Related JP4456388B2 (en)

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JP4456388B2 JP4456388B2 (en) 2010-04-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015003043A (en) * 2014-07-30 2015-01-08 内外化成株式会社 Medical cap and method for manufacturing the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5717747A (en) * 1980-05-30 1982-01-29 Upjohn Co Plug structure for mixing glass bottle
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5717747A (en) * 1980-05-30 1982-01-29 Upjohn Co Plug structure for mixing glass bottle
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015003043A (en) * 2014-07-30 2015-01-08 内外化成株式会社 Medical cap and method for manufacturing the same

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