JP6709039B2

JP6709039B2 - Connecting pipe

Info

Publication number: JP6709039B2
Application number: JP2015224598A
Authority: JP
Inventors: 正年渡邉
Original assignee: Kawasumi Laboratories Inc
Current assignee: Kawasumi Laboratories Inc
Priority date: 2015-07-09
Filing date: 2015-11-17
Publication date: 2020-06-10
Anticipated expiration: 2035-11-17
Also published as: JP2017018566A

Description

本発明はニードルレスの接続管に関する。さらに詳述すれば、操作者が接続管を使用して、患者に薬液等の注入及び血液のサンプリング等の操作を行う際に、より速やかで確実にこれらの操作を行うことのできるニードルレスの接続管の改良に関する。 The present invention relates to a needleless connecting pipe. More specifically, when the operator uses the connecting tube to perform operations such as injecting a drug solution into the patient and sampling blood, a needleless device that can perform these operations more quickly and reliably. Regarding improvement of connecting pipe.

特許文献１には、側注管にシリンジ等を接続する操作者が誤って皮膚に針を刺すことがなく、注入及びサンプリングの両方が可能なニードルレス側注管が開示されている。
当該ニードルレス側注管は、分岐管と密接した部位を有し、閉塞端を有するゴム状弾性体（本願発明のバルブに相当）が、シリンジのルアーテーパー等より受ける圧縮により変形して、密接した部位に薬液等の流入出ができる間隙が生じるような構造としている。
さらに詳述すれば、一端が開口した混注本管と、当該混注本管に連結し、一端から他端まで連通するル−メンを有する分岐管と、分岐管内壁と密接する部位を有し、且つ閉塞部を有するゴム状弾性体と、ゴム状弾性体を分岐管内に支持する支持部材とを有する。 Patent Document 1 discloses a needleless side injection tube capable of both injection and sampling without the operator connecting a syringe or the like to the side injection tube accidentally sticking a needle into the skin.
The needleless side injection pipe has a portion in close contact with the branch pipe, and the rubber-like elastic body having a closed end (corresponding to the valve of the present invention) is deformed by the compression received from the luer taper of the syringe, etc. The structure is such that a gap that allows the inflow and outflow of a chemical solution or the like is formed at the part.
More specifically, a mixed injection main pipe having one end opened, a branch pipe having a lumen connected to the mixed injection main pipe and communicating from one end to the other end, and a portion closely contacting the inner wall of the branch pipe, Further, it has a rubber-like elastic body having a closed portion and a support member for supporting the rubber-like elastic body in the branch pipe.

特許文献２には、医療従事者や患者への注射針の誤穿刺事故及び院内感染事故を皆無にできる側注管の発明が開示されている。（以下、特許文献２の符号をそのまま記載し、符号に〈〉を付けた。）
当該側注管は、下部が段部を介して接続流路〈７〉に連通したストレート状の内腔〈２〉、上部が狭窄された開口端〈３〉に向けて集束されたテーパー状の内腔〈４〉になっている筒状筐体〈１〉を設けている。
当該筒状筐体〈１〉の内腔内に、縦穴〈１１〉を開けた頂部〈８〉と筒状胴部〈９〉とからなる弾性栓体〈１０〉（本願発明のバルブに相当）を圧迫装填している。
注射針を装着しない注射器〈Ｃ〉の先管〈Ｃ′〉を、上部の開口端〈３〉から挿入すると、段部に支えられた筒状の弾性栓体〈１０〉が圧縮してテーパー状の内腔〈４〉を下降して頂部〈８〉が面方向に拡大することにより閉塞していた縦穴〈１１〉が開いて、プランジャ〈Ｐ〉の操作によりそのまま側注ができるように構成している。 Patent Document 2 discloses an invention of a side injection tube that can eliminate accidental puncture accidents of injection needles and nosocomial infection accidents for medical staff and patients. (Hereinafter, the reference numeral of Patent Document 2 is described as it is, and <> is added to the reference numeral.)
The side injection pipe has a straight inner lumen <2> whose lower portion communicates with the connection flow channel <7> via a step, and a tapered upper end converging toward the narrowed opening end <3>. A cylindrical casing <1> having an inner lumen <4> is provided.
An elastic plug body <10> (corresponding to the valve of the present invention) including an apex portion <8> having a vertical hole <11> and a tubular body portion <9> inside an inner cavity of the tubular casing <1>. Is being loaded under pressure.
When the tip tube <C'> of the syringe <C> without the needle is inserted through the upper open end <3>, the cylindrical elastic plug <10> supported by the step is compressed and tapered. The vertical hole <11> that had been closed by lowering the inner lumen <4> and expanding the top part <8> in the surface direction opens, and side injection can be performed as it is by operating the plunger <P>. ing.

特開１９９８−１９２４１５号公報（要約、特許請求の範囲の欄）Japanese Patent Laid-Open No. 1998-192415 (abstract, claims section) 特開２００３−３０５１２９号公報（要約、特許請求の範囲の欄）Japanese Patent Laid-Open No. 2003-305129 (abstract, claims section)

特許文献１に記載のゴム状弾性体（分岐管と密接した部位を有し、閉塞端を有する）と、特許文献２に記載の弾性栓体〈１０〉（縦穴〈１１〉を開けた頂部〈８〉と筒状胴部〈９〉とからなる）とは、双方ともに長手方向の中心から見て左右対称に形成しているので、両方ともにシリンジのルアーテーパー等で上部Ｕ側から押して変形させる時に変形しにくく、薬液等を注入しずらい。
さらに特許文献２に記載の弾性栓体〈１０〉は、頂部〈８〉の縦穴〈１１〉にルアーテーパー等を差しにくい等の課題があった。 The rubber-like elastic body described in Patent Document 1 (having a portion in close contact with the branch pipe and having a closed end), and the elastic plug body <10> described in Patent Document 2 (the top portion with a vertical hole <11>) <8> and the cylindrical body <9>) are both formed symmetrically when viewed from the center in the longitudinal direction, so both are deformed by pushing from the upper U side by the syringe luer taper or the like. Sometimes it is not easily deformed and it is difficult to inject chemicals.
Further, the elastic plug body <10> described in Patent Document 2 has a problem that it is difficult to insert a luer taper or the like into the vertical hole <11> of the top portion <8>.

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、以下の発明に到達した。
本発明は、ハウジングの空間内にバルブが配置された接続管であって、
前記バルブは、上側に設けられた頭部と、前記頭部よりも下側に設けられた脚部と、前記脚部よりも下側に設けられた台座と、を有し、
前記脚部は、前記頭部の中心と前記台座の中心を結ぶ上下方向と略平行に延在するともに、前記上下方向に略直交する直交方向の長さが前記頭部の前記直交方向の長さよりも小さくされ、且つ、前記上下方向に沿った中心軸よりも側方にオフセットして配置されて、当該バルブ全体の形態が前記中心軸に対して非対称に形成され、
前記頭部の上側の外周が前記ハウジングの上側の内周と密着した状態で、液密性を維持し、
前記頭部の上側から外圧が加えられると、前記脚部の変形に伴って前記頭部が下方に移動し、前記頭部の上側の外周が前記ハウジングの上部側の内周から離間して液体を流通可能な隙間が形成される接続管を提供する。 Therefore, the present inventor has arrived at the following invention as a result of intensive studies to solve the above problems.
The present invention is a connecting pipe in which a valve is arranged in a space of a housing,
The valve has a head portion provided on the upper side, a leg portion provided on the lower side of the head portion, and a pedestal provided on the lower side of the leg portion ,
The leg portion extends substantially parallel to the vertical direction connecting the center of the head and the center of the pedestal, and the length in the orthogonal direction substantially orthogonal to the vertical direction is the length of the head in the orthogonal direction. Smaller than that, and arranged laterally offset from the central axis along the vertical direction, the overall shape of the valve is formed asymmetrical to the central axis,
Maintaining liquid tightness in a state where the outer periphery on the upper side of the head is in close contact with the inner periphery on the upper side of the housing,
When external pressure is applied from the upper side of the head, the head moves downward with the deformation of the legs, and the outer periphery of the upper side of the head is separated from the inner periphery of the upper side of the housing and the liquid is discharged. Provided is a connecting pipe in which a gap through which the liquid can flow is formed.

［２］本発明は、前記頭部は、前記ハウジングの上側の内周と密着する部分よりも下側の部分に傾斜部を形成した、［１］に記載の接続管を提供する。[2] The present invention provides the connecting pipe according to [1], wherein the head has an inclined portion formed in a portion lower than a portion in close contact with the inner periphery of the upper side of the housing.

［３］本発明は、前記バルブは、前記脚部よりも下側に設けられた台座をさらに有し、[3] In the present invention, the valve further includes a pedestal provided below the leg portion,
前記台座は、側部の一方向の少なくとも一箇所に、変形する前記脚部が配置されるスペースを形成した、［１］に記載の接続管を提供する。The pedestal provides the connection pipe according to [1], in which a space for arranging the deformable leg portion is formed in at least one position in one direction of a side portion.

本発明の前記解決手段を有する接続管は、
（１）バルブは、上部方向からシリンジのルアーテーパー等からの圧力を受けると容易に変形・移動して、ハウジングの上部から下部に至るまでの液体の流通路を容易に開放することができるので、薬液等の注入、血液のサンプリング等の操作がより、速やかで確実に行うことができる。
（２）ルアーテーパー等からの圧力がなくなると、より速やかに基の形状に復元し、ハウジング内の液密性を維持して、シリンジのルアーテーパー等と、患者側の液体流路を遮断することができる。

A connecting pipe having the above-mentioned solution means of the present invention,
(1) The valve is easily deformed and moved when receiving pressure from the luer taper or the like of the syringe from the upper direction, and the liquid flow passage from the upper part to the lower part of the housing can be easily opened. Further, operations such as injection of a liquid medicine and sampling of blood can be performed more quickly and reliably.
(2) When the pressure from the luer taper or the like disappears, the shape of the lure taper is restored to its original shape more quickly, liquid tightness in the housing is maintained, and the luer taper of the syringe and the liquid flow path on the patient side are blocked. be able to.

図１は本発明の接続管１の全体図（組立時）で、（Ａ）は第１側部Ｓ１方向から見た側面図、（Ｂ）は（Ａ）のＡ−Ａ断面図である。FIG. 1 is an overall view (at the time of assembly) of a connecting pipe 1 of the present invention, (A) is a side view seen from the first side S1 direction, and (B) is a sectional view taken along the line AA of (A). 図２は本発明の接続管１の全体図（組立時）で、（Ａ）は第１側部Ｓ１方向から見た側面図、（Ｂ）は第２側部Ｓ２方向から見た側面図、（Ｃ）は（Ａ）のＢ−Ｂ断面図である。FIG. 2 is an overall view (when assembled) of the connecting pipe 1 of the present invention, (A) is a side view seen from the first side S1 direction, (B) is a side view seen from the second side S2 direction, (C) is a BB sectional view of (A). 図３は本発明の接続管１の全体図（組立時）で、（Ａ）は上部Ｕ方向から見た平面図、（Ｂ）は上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た斜視図である。FIG. 3 is an overall view (when assembled) of the connecting pipe 1 of the present invention, (A) is a plan view seen from the upper U direction, and (B) is an upper U-first side S1-third side S3 direction. It is the perspective view seen from. 図４は本発明の接続管１の全体図（組立時）で、（Ａ）は上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た分解斜視図（三部品）である。（Ｂ）は上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た分解斜視図（二部品）である。FIG. 4 is an overall view (when assembled) of the connecting pipe 1 of the present invention, and FIG. 4A is an exploded perspective view (three parts) viewed from the direction of the upper U-first side S1-third side S3. (B) is an exploded perspective view (two parts) viewed from the direction of the upper U-first side S1-third side S3. 図５は本発明の接続管１に装填（配置）するバルブ５の全体図で、（Ａ）は上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た斜視図、（Ｂ）は上部Ｕ方向から見た平面図、（Ｃ）は下部Ｄ方向から見た底面図、（Ｄ）は第１側部Ｓ１方向から見た側面図、（Ｅ）は第３側部Ｓ３方向から見た側面図である。FIG. 5 is an overall view of the valve 5 to be loaded (arranged) in the connecting pipe 1 of the present invention, (A) is a perspective view seen from the direction of the upper U-first side portion S1-third side portion S3, (B). Is a plan view viewed from the upper U direction, (C) is a bottom view viewed from the lower D direction, (D) is a side view viewed from the first side S1 direction, and (E) is viewed from the third side S3 direction. It is the side view seen. 図６は本発明の接続管１の全体図（組立時）で、（Ａ）は第１側部Ｓ１方向から見た側面図、（Ｂ）は（Ａ）のＡ−Ａ断面図、（Ｃ）は第２側部Ｓ２方向から見た側面図、（Ｄ）は上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た斜視図である。FIG. 6 is an overall view (when assembled) of the connecting pipe 1 of the present invention, (A) is a side view as seen from the first side S1 direction, (B) is a sectional view taken along line AA of (A), (C). ) Is a side view seen from the second side portion S2 direction, and (D) is a perspective view seen from the upper U-first side portion S1-third side portion S3 direction. 図７は本発明の接続管１の全体図（組立時）で、上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た分解斜視図（二部品）である。FIG. 7 is an overall view (when assembled) of the connecting pipe 1 of the present invention, and is an exploded perspective view (two parts) viewed from the direction of the upper U-first side S1-third side S3. 図８は本発明の接続管１に装填（配置）するバルブ１５の全体図で、（Ａ）は上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た斜視図、（Ｂ）は上部Ｕ方向から見た平面図、（Ｃ）は下部Ｄ方向から見た底面図、（Ｄ）は第１側部Ｓ１方向から見た側面図、（Ｅ）は第３側部Ｓ３方向から見た側面図である。FIG. 8 is an overall view of the valve 15 loaded (arranged) in the connection pipe 1 of the present invention, (A) is a perspective view seen from the direction of the upper U-first side S1 to third side S3, (B). Is a plan view viewed from the upper U direction, (C) is a bottom view viewed from the lower D direction, (D) is a side view viewed from the first side S1 direction, and (E) is viewed from the third side S3 direction. It is the side view seen. 図９は本発明の接続管１に装填（配置）するバルブ２５の全体図で、（Ａ）は上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た斜視図、（Ｂ）は上部Ｕ方向から見た平面図、（Ｃ）は下部Ｄ方向から見た底面図、（Ｄ）は第１側部Ｓ１方向から見た側面図、（Ｅ）は第３側部Ｓ３方向から見た側面図、（Ｆ）は第２側部Ｓ２方向から見た側面図である。FIG. 9 is an overall view of the valve 25 to be loaded (arranged) in the connection pipe 1 of the present invention, (A) is a perspective view seen from the direction of the upper U-first side portion S1-third side portion S3, (B). Is a plan view viewed from the upper U direction, (C) is a bottom view viewed from the lower D direction, (D) is a side view viewed from the first side S1 direction, and (E) is viewed from the third side S3 direction. The side view seen, (F) is the side view seen from the second side S2 direction. 図１０は本発明の接続管１に装填（配置）するバルブ３５の全体図で、（Ａ）は上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た斜視図、（Ｂ）は上部Ｕ方向から見た平面図、（Ｃ）は下部Ｄ方向から見た底面図、（Ｄ）は第１側部Ｓ１方向から見た側面図、（Ｅ）は第３側部Ｓ３方向から見た側面図、（Ｆ）は上部Ｕ−第２側部Ｓ２−第３側部Ｓ３方向から見た斜視図である。FIG. 10 is an overall view of the valve 35 to be loaded (arranged) in the connection pipe 1 of the present invention, (A) is a perspective view seen from the direction of the upper U-first side portion S1-third side portion S3, (B). Is a plan view viewed from the upper U direction, (C) is a bottom view viewed from the lower D direction, (D) is a side view viewed from the first side S1 direction, and (E) is viewed from the third side S3 direction. The side view seen, (F) is a perspective view seen from the upper U-second side portion S2-third side portion S3 direction. 図１１は本発明の接続管１に装填（配置）するバルブ４５の全体図で、（Ａ）は上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た斜視図、（Ｂ）は上部Ｕ方向から見た平面図、（Ｃ）は下部Ｄ方向から見た底面図、（Ｄ）は第１側部Ｓ１方向から見た側面図、（Ｅ）は第３側部Ｓ３方向から見た側面図である。FIG. 11 is an overall view of the valve 45 to be loaded (arranged) in the connecting pipe 1 of the present invention, (A) is a perspective view seen from the direction of the upper U-first side portion S1-third side portion S3, (B). Is a plan view viewed from the upper U direction, (C) is a bottom view viewed from the lower D direction, (D) is a side view viewed from the first side S1 direction, and (E) is viewed from the third side S3 direction. It is the side view seen. 図１２は、図８のバルブ１５を装填した図６の接続管１の使用方法の一例を示す断面図で、（Ａ）は、第１側部Ｓ１−第２側部Ｓ２の縦断面図、（Ｂ）は（Ａ）のＡ−Ａ断面図（第３側部Ｓ３−第４側部Ｓ４の縦断面図）である。12: is sectional drawing which shows an example of the usage of the connecting pipe 1 of FIG. 6 which loaded the valve 15 of FIG. 8, (A) is a longitudinal sectional view of the 1st side part S1-the 2nd side part S2, (B) is an AA sectional view of (A) (a vertical sectional view of a third side portion S3 to a fourth side portion S4). 図１３は、本発明の接続管１に装填（配置）するバルブ１５ＦＲの全体図で、（Ａ）は上部Ｕ−第１側部Ｓ１−第４側部Ｓ４方向から見た斜視図、（Ｂ）はバルブ１５ＦＲを下部ハウジング２Ｄに装着したところの斜視図で、上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た分解斜視図である。FIG. 13 is an overall view of the valve 15FR loaded (arranged) in the connection pipe 1 of the present invention, (A) is a perspective view seen from the direction of the upper U-first side S1 to fourth side S4, (B). ) Is a perspective view of the valve 15FR mounted on the lower housing 2D, and is an exploded perspective view seen from the direction of upper U-first side S1-third side S3. 図１４は、本発明の接続管１に装填（配置）するバルブ５５ＦＲの全体図で、（Ａ）は上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た斜視図、（Ｂ）はバルブ５５ＦＲを下部ハウジング２Ｄに装着したところの斜視図で、上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た分解斜視図である。FIG. 14 is an overall view of the valve 55FR to be loaded (arranged) in the connection pipe 1 of the present invention, (A) is a perspective view seen from the direction of the upper U-first side S1 to third side S3, (B). ) Is a perspective view of the valve 55FR attached to the lower housing 2D, and is an exploded perspective view seen from the direction of upper U-first side S1-third side S3. 図１５は、本発明の接続管１に装填（配置）するバルブ５ＦＲの全体図で、（Ａ）は上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た斜視図、（Ｂ）はバルブ５ＦＲを下部ハウジング２Ｄに装着したところの斜視図で、上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た分解斜視図である。FIG. 15 is an overall view of the valve 5FR to be loaded (arranged) in the connection pipe 1 of the present invention, (A) is a perspective view seen from the direction of the upper U-first side portion S1-third side portion S3, (B). 8B is a perspective view of the valve 5FR mounted on the lower housing 2D, and is an exploded perspective view seen from the direction of upper U-first side S1-third side S3. 図１６は、本発明の接続管１に装填（配置）するバルブ２５ＦＲの全体図で、（Ａ）は上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た斜視図、（Ｂ）はバルブ２５ＦＲを下部ハウジング２Ｄに装着したところの斜視図で、上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た分解斜視図である。FIG. 16 is an overall view of the valve 25FR to be loaded (arranged) in the connection pipe 1 of the present invention, (A) is a perspective view seen from the direction of the upper U-first side portion S1-third side portion S3, (B). ) Is a perspective view of the valve 25FR mounted on the lower housing 2D, and is an exploded perspective view seen from the direction of the upper U-first side S1-third side S3. 図１７は、本発明の接続管１に装填（配置）するバルブ３５ＦＲの全体図で、（Ａ）は上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た斜視図で、（Ｂ）はバルブ３５ＦＲを下部ハウジング２Ｄに装着したところの斜視図で、上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た分解斜視図である。FIG. 17 is an overall view of the valve 35FR to be loaded (arranged) in the connection pipe 1 of the present invention, (A) is a perspective view seen from the direction of the upper U-first side S1-third side S3, B) is a perspective view of the valve 35FR attached to the lower housing 2D, and is an exploded perspective view seen from the direction of the upper U-first side S1-third side S3. 図１８は、本発明の接続管１に装填（配置）するバルブ４５ＦＲの全体図で、（Ａ）は上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た斜視図で、（Ｂ）はバルブ４５ＦＲを下部ハウジング２Ｄに装着したところの斜視図で、上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た分解斜視図である。FIG. 18 is an overall view of the valve 45FR to be loaded (arranged) in the connection pipe 1 of the present invention, (A) is a perspective view seen from the direction of the upper U-first side S1-third side S3, B) is a perspective view of the valve 45FR mounted on the lower housing 2D, and is an exploded perspective view seen from the direction of the upper U-first side S1-third side S3. 図１９は、本発明の接続管１に装填（配置）するバルブ６５ＦＲの全体図で、（Ａ）は上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た斜視図、（Ｂ）はバルブ１５Ｆを下部ハウジング２Ｄに装着したところの斜視図で、上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た分解斜視図である。FIG. 19 is an overall view of the valve 65FR to be loaded (arranged) in the connecting pipe 1 of the present invention, (A) is a perspective view seen from the direction of the upper U-first side portion S1-third side portion S3, (B). ) Is a perspective view of the valve 15F mounted on the lower housing 2D, and is an exploded perspective view seen from the direction of upper U-first side S1-third side S3. 図２０は、本発明の接続管１に装填（配置）するバルブ５５の全体図で、上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た斜視図である。FIG. 20 is an overall view of the valve 55 to be loaded (arranged) in the connecting pipe 1 of the present invention, and is a perspective view seen from the direction of the upper U-first side S1-third side S3. 図２１は、バルブ５５を下部ハウジング２Ｄに装着したところの斜視図で、（Ａ）は上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た分解斜視図、（Ｂ）は（Ａ）にパッキンＰを装着したところの分解斜視図である。FIG. 21 is a perspective view of the valve 55 mounted on the lower housing 2D. (A) is an exploded perspective view seen from the upper U-first side S1 to third side S3 direction, and (B) is ( It is a disassembled perspective view which attached the packing P to A). 図２２は、本発明の接続管１に装填（配置）するバルブ６５の全体図で、（Ａ）は上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た斜視図、（Ｂ）は、バルブ６５を下部ハウジング２Ｄに装着したところの斜視図で、（Ａ）は上部Ｕ−第１側部Ｓ１−第３側部Ｓ３方向から見た分解斜視図である。FIG. 22 is an overall view of the valve 65 to be loaded (arranged) in the connection pipe 1 of the present invention, (A) is a perspective view seen from the direction of the upper U-first side portion S1-third side portion S3, (B). 8A is a perspective view of the valve 65 mounted on the lower housing 2D, and FIG. 14A is an exploded perspective view of the upper U-first side S1-third side S3. 図２３は、バルブ７５ＦＲをハウジング１２に装填した接続管１１の使用方法の一例を示す第１側部Ｓ１−第２側部Ｓ２の縦断面図で、（Ａ）はルアーテーパーＳＹＲを差し込む前、（Ｂ）はルアーテーパーＳＹＲを差し込んで、液体流路を開通させた時の断面図である。FIG. 23 is a vertical cross-sectional view of the first side part S1 to the second side part S2 showing an example of how to use the connecting pipe 11 in which the valve 75FR is loaded in the housing 12, and (A) is before inserting the luer taper SYR. (B) is a cross-sectional view when the luer taper SYR is inserted and the liquid flow path is opened.

以下、図面を参照しながら本発明を詳細に説明する。
以下、本発明を明確に説明するため、図１（Ａ）、図５（Ｄ）（以下、本定義中では単に「図」と記載する。）を次の定義をおく。
（定義１）「第１側部Ｓ１側」とは、図に示すように、紙面の表側（正面方向）を意味する。以下「・・・側」は「・・・方向」と記載する場合がある。
（定義２）「第２側部Ｓ２側」とは、図に示すように、紙面の裏側（背面方向）を意味する。
（定義３）「第３側部Ｓ３側」とは、図に示すように、紙面の右側を意味する。
（定義４）「第４側部Ｓ４側」とは、図に示すように、紙面の左側を意味する。 Hereinafter, the present invention will be described in detail with reference to the drawings.
Hereinafter, in order to clearly describe the present invention, the following definitions are given to FIG. 1(A) and FIG. 5(D) (hereinafter, simply referred to as “figure” in this definition).
(Definition 1) "First side S1 side" means the front side (front direction) of the paper surface, as shown in the figure. Hereinafter, "... side" may be described as "... direction".
(Definition 2) "Second side S2 side" means the back side (back side) of the paper as shown in the figure.
(Definition 3) "Third side S3 side" means the right side of the drawing, as shown in the figure.
(Definition 4) The “fourth side S4 side” means the left side of the drawing, as shown in the figure.

（定義５）「上部Ｕ側」とは、図に示すように、紙面の上側を意味する。
（定義６）「下部Ｄ側」とは、図に示すように、紙面の下側を意味する。
（定義７）「長手Ｌ方向」とは、図に示すように接続管１、バルブ５の長尺方向を意味する。
（定義８）「円周ＣＲ方向」とは、前記長手Ｌ方向の中心Ｃから、「側部Ｓ側」に延びる方向を意味する。側部Ｓ側は、第１側部Ｓ１側、第２側部Ｓ２側、第３側部Ｓ３側、第３側部Ｓ３側、これらの間の全ての方向を含む。
（定義９）また例えば第１側部Ｓ１（第３側部Ｓ３）側を側部Ｓの一方向、これと略１８０度反対側の第２側部Ｓ２（第４側部Ｓ４）を他の側部Ｓの一方向と記載する場合がある。
また例えば第１側部Ｓ１（第２側部）側を側部Ｓの一方向、これと略９０度側に位置する第３側部Ｓ３（第４側部Ｓ４）側を他の側部Ｓの一方向と記載する場合がある。
また例えば第１側部Ｓ１（第２側部）側を側部Ｓの一方向、これと略９０度側に位置する第３側部Ｓ３側と第４側部Ｓ４側を他の側部Ｓの二方向と記載する場合がある。
（定義１０）（各構成部品の名称の位置・配置等の方向性を示す符号の記載について）
本発明の図面及び発明の説明の中で、例えば図５に例示するように、台座５Ｂの
スペース５ＢＳＰで、第１側部Ｓ１側のスペースを５ＢＳＰＳ１、第２側部Ｓ２側のスペースを５ＢＳＰＳ２と記載した。
以下、これらのスペース５ＢＳＰ並びにこれら以外の各構成部品等の名称で、「第１側部Ｓ１側」等の位置・配置等の方向性を示す符号は、発明の理解ができ、必要と認められる範囲内で、図面及び発明の説明の中で一部のみについて記載した。 (Definition 5) "Upper U side" means the upper side of the paper as shown in the figure.
(Definition 6) "Lower D side" means the lower side of the paper as shown in the figure.
(Definition 7) The "longitudinal L direction" means the longitudinal direction of the connecting pipe 1 and the valve 5 as shown in the figure.
(Definition 8) The "circumferential CR direction" means a direction extending from the center C in the longitudinal L direction to the "side S side". The side portion S side includes the first side portion S1 side, the second side portion S2 side, the third side portion S3 side, the third side portion S3 side, and all directions between them.
(Definition 9) Further, for example, the first side portion S1 (third side portion S3) side is in one direction of the side portion S, and the second side portion S2 (fourth side portion S4) opposite to this side by about 180 degrees is the other side. It may be described as one direction of the side portion S.
Further, for example, the first side portion S1 (second side portion) side is in one direction of the side portion S, and the third side portion S3 (fourth side portion S4) side located approximately 90 degrees with respect to this is the other side portion S. It may be described as one direction.
Further, for example, the first side portion S1 (second side portion) side is in one direction of the side portion S, and the third side portion S3 side and the fourth side portion S4 side located approximately 90 degrees with respect to this are the other side portions S. May be described as two directions.
(Definition 10) (Regarding signs indicating directionality such as position and arrangement of name of each component)
In the drawings of the present invention and the description of the present invention, as illustrated in FIG. 5, for example, the space 5BSP of the pedestal 5B is defined as 5BSPS1 for the space on the first side S1 side and 5BSPS2 for the space on the second side S2 side. Described.
In the following, in the names of these spaces 5BSP and other components, etc., reference numerals indicating the directionality of the position/arrangement on the "first side S1 side" etc. are understood to be necessary and understandable. Within the scope, only a part has been described in the drawings and the description of the invention.

接続管１、バルブ５、１５、２５、３５、４５、５５、６５、７５、５ＦＲ、１５ＦＲ、２５ＦＲ、３５ＦＲ、４５ＦＲ、５５ＦＲ、６５ＦＲ、７５ＦＲは、各部材毎の符号記載の複雑化を回避するため、共通ないし同じ部材はできるだけ同じ符号を記載した。
なお説明の便宜上、バルブ５を配置した接続管１を接続管１．５、バルブ１５を配置した接続管１を接続管１．１５等と記載する場合ある。以下同様にバルブ２５、３５、４５、５５、６５、５ＦＲ、１５ＦＲ、２５ＦＲ、３５ＦＲ、４５ＦＲ、５５ＦＲ、６５ＦＲを配置した接続管１は、それぞれ接続管１．２５、１．３５、１．４５、１．５５、１．６５、１．５ＦＲ、１．１５ＦＲ、１．２５ＦＲ、１．３５ＦＲ、１．４５ＦＲ、１．５５ＦＲ、１．６５ＦＲと記載すべきであるが、接続管１の符号があまり複雑・多岐にならないように、発明の理解ができ、必要と認められる範囲内で接続管１．５、１．１５の一部のみ記載した。 The connecting pipe 1, the valves 5, 15, 25, 35, 45, 55, 65, 75, 5FR, 15FR, 25FR, 35FR, 45FR, 55FR, 65FR, 75FR avoid the complication of the description of each member. Therefore, common or same members are denoted by the same reference numerals as much as possible.
For convenience of explanation, the connecting pipe 1 in which the valve 5 is arranged may be referred to as a connecting pipe 1.5, and the connecting pipe 1 in which the valve 15 is arranged may be referred to as a connecting pipe 1.15. Similarly, the connection pipes 1 in which the valves 25, 35, 45, 55, 65, 5FR, 15FR, 25FR, 35FR, 45FR, 55FR, 65FR are arranged in the same manner are connected pipes 1.25, 1.35, 1.45, respectively. Although it should be described as 1.55, 1.65, 1.5FR, 1.15FR, 1.25FR, 1.35FR, 1.45FR, 1.55FR, 1.65FR, the reference numeral of the connecting pipe 1 is not so much. Only a part of the connecting pipes 1.5 and 1.15 is described within the range that is understood and necessary so that the invention can be understood so as not to be complicated and diversified.

（接続管１）
本発明の接続管１は、図１（Ｂ）に示すように、上部ハウジング２Ｕと下部ハウジング２Ｄを有し、図１（Ｂ）に示すように、下部ハウジング２Ｄの上部空間から上部ハウジング２Ｕの内部空間へ立ち上がるように、バルブ５を配置している。 (Connection tube 1)
The connecting pipe 1 of the present invention has an upper housing 2U and a lower housing 2D as shown in FIG. 1(B). As shown in FIG. 1(B), the connecting pipe 1 extends from the upper space of the lower housing 2D to the upper housing 2U. The valve 5 is arranged so as to rise to the internal space.

（バルブ５）
バルブ５は、図５に示すように、上部Ｕ方向から下部Ｄ方向に向けて、頭部５Ｈ、脚部５Ｆ及び台座５Ｂを有する。換言すれば台座５Ｂ、脚部５Ｆ及び頭部５Ｈは一体成形している。
頭部５Ｈは、いわゆる略円柱状の形態を有し、側部Ｓの一方向の略中腹部から他の側部Ｓの二方向の領域の斜め方向、すなわち第１側部Ｓ１の略中腹部から、下部Ｄ−第３側部Ｓ３−第２側部Ｓ２の斜め方向と、下部Ｄ−第４側部Ｓ４−第２側部Ｓ２の斜め方向に削って、傾斜部５ＳＬを形成している。
頭部５Ｈの形態は、側部Ｓの一方向から他の側部Ｓの一方向、すなわち第３側部Ｓ３−第４側部Ｓ４方向に見て、台座５Ｂの円周ＣＲ方向の中心５ＢＣ（バルブ５の長手Ｌ方向の中心５ＬＣ）に対して、非対称に形成している。
脚部５Ｆは、いわゆる略円柱状に長手Ｌ方向に延びるように形成している。 (Valve 5)
As shown in FIG. 5, the valve 5 has a head portion 5H, leg portions 5F, and a pedestal 5B from the upper U direction toward the lower D direction. In other words, the pedestal 5B, the legs 5F and the head 5H are integrally formed.
The head portion 5H has a so-called substantially columnar shape, and is oblique in a two-direction region from the one side of the side portion S to the other side portion S, that is, the first side portion S1. From the lower D-third side S3 to the second side S2 and the lower D-fourth side S4 to the second side S2 in the oblique direction to form the inclined portion 5SL. ..
The form of the head portion 5H is such that, when viewed from one direction of the side portion S to one direction of the other side portion S, that is, the third side portion S3 to the fourth side portion S4, the center 5BC of the pedestal 5B in the circumferential CR direction. It is formed asymmetrically with respect to the center 5LC of the bulb 5 in the longitudinal L direction.
The leg portion 5F is formed in a so-called substantially columnar shape so as to extend in the longitudinal direction L.

台座５Ｂは、図５（Ｃ）に示すように、いわゆる略板状（略円形）の形態を有し、略第１側部Ｓ１側と略第２側部Ｓ２側を、略矩形状に切欠して、スペース５ＢＳＰＳ１、５ＢＳＰＳ２を形成している。これらのスペース５ＢＳＰＳ１とスペース５ＢＳＰＳ２との間に、脚部５Ｆの配置部５ＢＦ（略矩形状）を形成している。
スペース５ＢＳＰＳ１の面積は、スペース５ＢＳＰＳ２の面積よりも大きく形成している。
このため配置部５ＢＦは、台座５Ｂの円周（ＣＲ）方向の中心５ＢＣ（バルブ５の長手Ｌ方向の中心５ＬＣ）よりも、側部Ｓの一方向、すなわち第２側部Ｓ２側にオフセットしている。 As shown in FIG. 5(C), the pedestal 5B has a so-called substantially plate-shaped (generally circular) shape, and the substantially first side portion S1 side and the substantially second side portion S2 side are notched in a substantially rectangular shape. Then, spaces 5BSPS1 and 5BSPS2 are formed. An arrangement portion 5BF (substantially rectangular) of the leg portion 5F is formed between the space 5BSPS1 and the space 5BSPS2.
The area of the space 5BSPS1 is formed larger than the area of the space 5BSPS2.
Therefore, the arrangement portion 5BF is offset to one direction of the side portion S, that is, the second side portion S2 side, from the center 5BC in the circumferential (CR) direction of the pedestal 5B (center 5LC in the longitudinal L direction of the valve 5). ing.

以上のようにバルブ５は、下部Ｄ側の台座５Ｂから上部Ｕ方向に立ち上がるように、いわゆる略円柱状の脚部５Ｆを立設し、当該脚部５Ｆの上部Ｕ側に頭部５Ｈの傾斜部５ＳＬの最下部Ｄを接続している。
脚部５Ｆは、配置部５ＢＦとともに側部Ｓの一方向、すなわち第２側部Ｓ２方向にオフセットしている。 As described above, in the valve 5, the so-called substantially columnar leg portion 5F is erected so as to rise from the pedestal 5B on the lower D side in the upper U direction, and the head portion 5H is inclined to the upper U side of the leg portion 5F. The lowermost part D of the portion 5SL is connected.
The leg portion 5F is offset in one direction of the side portion S, that is, the second side portion S2 direction together with the arrangement portion 5BF.

（ハウジング２）
ハウジング２は、上部ハウジング２Ｕと下部ハウジング２Ｄとを有する。
（上部ハウジング２Ｕ）
上部ハウジング２Ｕは、上部Ｕ側に開口を有する上部管状部２ＵＴと下部Ｄ側に開口を有する上部鍔部２ＵＦとからなる。
上部鍔部２ＵＦは、内周に、後述する下部ハウジング２Ｄの下部接続部２ＤＣと接続する第１上部接続部（いわゆる溝）２ＵＣ１を形成している。
上部管状部２ＵＴの外周にシリンジとの第２上部接続部（いわゆる螺子状突起）２ＵＣ２を形成している。 (Housing 2)
The housing 2 has an upper housing 2U and a lower housing 2D.
(Upper housing 2U)
The upper housing 2U includes an upper tubular portion 2UT having an opening on the upper U side and an upper collar portion 2UF having an opening on the lower D side.
The upper collar portion 2UF has a first upper connecting portion (so-called groove) 2UC1 which is connected to a lower connecting portion 2DC of a lower housing 2D described later on the inner circumference.
A second upper connecting portion (so-called screw-shaped protrusion) 2UC2 with the syringe is formed on the outer periphery of the upper tubular portion 2UT.

（下部ハウジング２Ｄ）
下部ハウジング２Ｄは、上部Ｕ側に開口を有する下部鍔部２ＤＦと下部Ｄ側に開口を有する下部管状部２ＤＴとからなる。
下部鍔部２ＤＦの上部Ｕ側に、下部接続部（いわゆる略環状の突起）２ＤＣを形成している。
下部接続部２ＤＣの内側に、載置部２ＤＰを形成している。 (Lower housing 2D)
The lower housing 2D includes a lower collar portion 2DF having an opening on the upper U side and a lower tubular portion 2DT having an opening on the lower D side.
A lower connecting portion (so-called substantially annular protrusion) 2DC is formed on the upper U side of the lower collar portion 2DF.
The mounting portion 2DP is formed inside the lower connection portion 2DC.

（接続管１内へのバルブ５の配置、バルブ５を配置した接続管１．５）
図４（Ａ）に示すように、バルブ５の台座５Ｂを、下部ハウジング２Ｄの載置部２ＤＰの上部Ｕに載置し、下部接続部２ＤＣの内周に圧入して装着する。
図４（Ｂ）に示すように、上部ハウジング２Ｕを、バルブ５を覆うように、下部ハウジング２Ｄに装着する。
図１（Ｂ）に示すように、第１上部接続部２ＵＣ１と下部接続部２ＤＣは嵌合し、台座５Ｂの外縁は、上部鍔部２ＵＦの内縁と載置部２ＤＰとの間で固定される。
バルブ５の頭部５Ｈの略円柱状の部分（傾斜部５ＳＬを除く）は、上部管状部２ＵＴの上部内周と密着する。当該密着部により、液密性を維持することができる。 (Arrangement of the valve 5 in the connecting pipe 1, connecting pipe 1.5 in which the valve 5 is arranged)
As shown in FIG. 4(A), the pedestal 5B of the valve 5 is placed on the upper portion U of the placing portion 2DP of the lower housing 2D, and is press-fitted and attached to the inner periphery of the lower connecting portion 2DC.
As shown in FIG. 4B, the upper housing 2U is attached to the lower housing 2D so as to cover the valve 5.
As shown in FIG. 1B, the first upper connecting portion 2UC1 and the lower connecting portion 2DC are fitted together, and the outer edge of the pedestal 5B is fixed between the inner edge of the upper collar portion 2UF and the mounting portion 2DP. ..
The substantially cylindrical portion of the head portion 5H of the valve 5 (excluding the inclined portion 5SL) is in close contact with the upper inner circumference of the upper tubular portion 2UT. Liquid tightness can be maintained by the contact portion.

（上部ハウジング２Ｕ、下部ハウジング２Ｄ、バルブ５の材質）
上部ハウジング２Ｕの材質は、例えばポリプロピレン、ポリエチレン、ＡＢＳ、ナイロン等の熱可塑性プラスチックが好適に使用することができる。
下部ハウジング２Ｄの材質は、例えばポリカーボネート、ＡＢＳ、ナイロン等の
熱可塑性プラスチックが好適に使用することができる。
バルブ５の材質は、シリコーンゴム、イソプレンゴム、ブチルゴム等の合成ゴムやエラストマー等熱可塑性樹脂の弾性体が好適に使用することができる。 (Material of upper housing 2U, lower housing 2D, valve 5)
As a material of the upper housing 2U, for example, thermoplastics such as polypropylene, polyethylene, ABS, nylon can be preferably used.
As the material of the lower housing 2D, thermoplastics such as polycarbonate, ABS, nylon, etc. can be preferably used.
As the material of the valve 5, a synthetic rubber such as silicone rubber, isoprene rubber or butyl rubber, or an elastic body of a thermoplastic resin such as an elastomer can be preferably used.

（接続管１内へのバルブ１５の配置、バルブ１５を配置した接続管１．１５）
図６（Ｂ）から図７に示すようにバルブ１５を接続管１内へ配置する。
バルブ１５がバルブ５と異なる点は、頭部１５Ｈと台座１５Ｂである。
（頭部１５Ｈ）
図８に示すように頭部１５Ｈがバルブ５の頭部５Ｈと異なる点は以下の二点である。
第一にバルブ５の傾斜部５ＳＬに代えて、側部Ｓの一方向に異なる上下方向に傾斜する二種類の傾斜部１５ＳＬＵ、１５ＳＬＤ、すなわち第１側部Ｓ１方向に、上部傾斜部１５ＳＬＵと下部傾斜部１５ＳＬＤを形成した点である。
第二に頭部１５Ｈの上部Ｕに上部鍔部１５ＦＵ、下部Ｄに下部鍔部１５ＦＤを新たに形成した点である。 (Arrangement of the valve 15 in the connecting pipe 1, connecting pipe 1.15 in which the valve 15 is arranged)
The valve 15 is arranged in the connection pipe 1 as shown in FIGS. 6(B) to 7.
The valve 15 differs from the valve 5 in a head portion 15H and a pedestal 15B.
(Head 15H)
As shown in FIG. 8, the head portion 15H is different from the head portion 5H of the valve 5 in the following two points.
First, instead of the slanted portion 5SL of the valve 5, two kinds of slanted portions 15SLU and 15SLD which are slanted in different vertical directions in one direction of the side portion S, that is, the upper slanted portion 15SLU and the lower portion in the direction of the first side portion S1. This is the point where the inclined portion 15SLD is formed.
Secondly, the upper flange 15FU is newly formed on the upper U of the head 15H, and the lower flange 15FD is newly formed on the lower D.

上部傾斜部１５ＳＬＵは、頭部１５Ｈの略中腹部領域（一部上部Ｕ側から下部Ｄ側まで含む）の傾斜で、上部Ｕから下部Ｄに下る傾斜である。
上部傾斜部１５ＳＬＵは、第１側部Ｓ１方向から見て、いわゆる略半円状（略半楕円、略放物線状、略舌状ともいう。）である。
下部傾斜部１５ＳＬＤは、頭部１５Ｈの下部Ｄ領域に下部Ｄ側から上部Ｕ側に上る傾斜で、第１側部Ｓ１方向から見て、いわゆる略矩形状（第３側部Ｓ３から第４側部Ｓ４方向に延びる）である。
上部傾斜部１５ＳＬＵは、下部傾斜部１５ＳＬＤよりも長く形成している。
以上のように頭部１５Ｈの形態は、第３側部Ｓ３−第４側部Ｓ４方向に見て、中心５ＢＣ（５ＬＣ）に対して非対称に形成している。
図６に示すように上部鍔部１５ＦＵは、上部管状部２ＵＴの内周に上部領域で密着し、下部鍔部１５ＦＤは、上部管状部２ＵＴの内周に中腹部領域近傍で密着し、これらの密着部により液密性を維持することができる。 The upper sloping portion 15SLU is a slope of a substantially middle abdomen region of the head portion 15H (including a part from the upper U side to the lower D side), and is a slope descending from the upper U to the lower D.
The upper inclined portion 15SLU has a so-called substantially semicircular shape (also referred to as a substantially semielliptical shape, a substantially parabolic shape, or a substantially tongue shape) when viewed from the first side portion S1 direction.
The lower sloping portion 15SLD has an inclination from the lower D side to the upper U side in the lower D region of the head portion 15H, and is a substantially rectangular shape (the third side portion S3 to the fourth side from the first side portion S1 direction). It extends in the direction of section S4).
The upper inclined portion 15SLU is formed longer than the lower inclined portion 15SLD.
As described above, the form of the head portion 15H is formed asymmetrically with respect to the center 5BC (5LC) when viewed in the third side portion S3-fourth side portion S4 direction.
As shown in FIG. 6, the upper collar portion 15FU is in close contact with the inner periphery of the upper tubular portion 2UT in the upper region, and the lower collar portion 15FD is in close contact with the inner periphery of the upper tubular portion 2UT in the vicinity of the middle abdominal region. Liquid tightness can be maintained by the close contact portion.

（台座１５Ｂ）
台座１５Ｂが台座５Ｂと異なる点は、以下のとおりである。
第一に、略第３側部Ｓ３側と略第４側部Ｓ４側を、略矩形状に切欠して、スペース１５ＢＳＰＳ３、１５ＢＳＰＳ４を形成している点。
第二に、スペース１５ＢＳＰＳ３とスペース１５ＢＳＰＳ４の面積は、実質的に同じである点。
第三に、脚部５Ｆの配置部１５ＢＦは、台座１５Ｂの円周（ＣＲ）方向の中心５ＢＣ（バルブ５の長手Ｌ方向の中心５ＣＬ）と一致している点。
なお、脚部５Ｆが台座１５Ｂの円周（ＣＲ）方向の中心５ＢＣ（バルブ５の長手Ｌ方向の中心５ＬＣ）から第２側部Ｓ２側にオフセットしている点は、バルブ５と同じである。 (Pedestal 15B)
The pedestal 15B is different from the pedestal 5B in the following points.
First, the substantially third side portion S3 side and the substantially fourth side portion S4 side are notched in a substantially rectangular shape to form the spaces 15BSPS3 and 15BSPS4.
Second, the areas of the space 15BSPS3 and the space 15BSPS4 are substantially the same.
Thirdly, the arrangement portion 15BF of the leg portion 5F coincides with the center 5BC of the pedestal 15B in the circumferential (CR) direction (the center 5CL of the valve 5 in the longitudinal L direction).
Note that the leg 5F is the same as the valve 5 in that the leg 5F is offset from the center 5BC of the pedestal 15B in the circumferential (CR) direction (the center 5LC of the valve 5 in the longitudinal L direction) to the second side S2 side. ..

（その他のバルブ２５、３５、４５）
（バルブ２５）
バルブ２５がバルブ５、１５と異なる点は、頭部２５Ｈと台座２５Ｂ、脚部２５Ｆの配置位置である。
（頭部２５Ｈ）
図９に示すように、頭部２５Ｈは、側部Ｓの一方向と他の側部Ｓの一方向に異なる長さの二種類の傾斜部、すなわち第１側部Ｓ１方向に長い傾斜部２５ＳＬＳ１を形成し、第２側部Ｓ２方向に短い傾斜部２５ＳＬＳ２を形成している。
傾斜部２５ＳＬＳ１は、頭部２５Ｈの下部Ｄ側から上部Ｕ側へ上部Ｕ領域まで、上るように形成している。
傾斜部２５ＳＬＳ２は、頭部２５Ｈの下部Ｄ側から上部Ｕ側へ略中腹部領域まで、上るように形成している。
以上のように頭部２５Ｈの形態は、第３側部Ｓ３−第４側部Ｓ４方向に見て、中心５ＢＣ（５ＬＣ）に対して非対称に形成している。 (Other valves 25, 35, 45)
(Valve 25)
The valve 25 is different from the valves 5 and 15 in the arrangement position of the head portion 25H, the pedestal 25B, and the leg portions 25F.
(Head 25H)
As shown in FIG. 9, the head portion 25H has two kinds of inclined portions having different lengths in one direction of the side portion S and one direction of the other side portion S, that is, the inclined portion 25SLS1 long in the first side portion S1 direction. And a short inclined portion 25SLS2 is formed in the second side portion S2 direction.
The inclined portion 25SLS1 is formed so as to rise from the lower portion D side of the head portion 25H to the upper portion U side up to the upper portion U region.
The inclined portion 25SLS2 is formed so as to rise from the lower portion D side of the head portion 25H to the upper portion U side up to a substantially middle abdominal region.
As described above, the shape of the head portion 25H is formed asymmetrically with respect to the center 5BC (5LC) when viewed in the third side portion S3-fourth side portion S4 direction.

（台座２５Ｂ）
台座２５Ｂは、略第１側部Ｓ１側と略第２側部Ｓ２側を、略矩形状に切欠して、スペース２５ＢＳＰＳ１、２５ＢＳＰＳ２を形成している点で、台座１５Ｂと異なるのみで、その他は台座１５Ｂと実質的に同じである。脚部２５Ｆの配置部１５ＢＦも台座１５Ｂと同じである。
脚部２５Ｆの配置位置は、台座１５Ｂの円周（ＣＲ）方向の中心５ＢＣ（バルブ５の長手Ｌ方向の中心５ＬＣ）と一致し、第２側部Ｓ２側にオフセットしているバルブ５、１５と異なる。 (Pedestal 25B)
The pedestal 25B is different from the pedestal 15B in that the spaces 25BSPS1 and 25BSPS2 are formed by notching the substantially first side portion S1 side and the substantially second side portion S2 side in a substantially rectangular shape, and the other portions are the same. It is substantially the same as the pedestal 15B. The arrangement portion 15BF of the leg portion 25F is also the same as the pedestal 15B.
The position of the leg portion 25F coincides with the center 5BC of the pedestal 15B in the circumferential (CR) direction (the center 5LC of the valve 5 in the longitudinal L direction), and the valves 5 and 15 are offset to the second side S2 side. Different from

（バルブ３５）
バルブ３５がバルブ１５と異なる点は、頭部３５Ｈと脚部３５Ｆ、脚部３５Ｆの配置位置である。
（頭部３５Ｈ）
頭部３５Ｈは、側部Ｓの一方向に略湾曲状に窪んだ傾斜部３５ＳＬＳ１、すなわち第１側部Ｓ１方向にいわゆる略楕円形状の窪み、傾斜部３５ＳＬＳ１を形成している。
脚部１５Ｆに代えて、側部Ｓの一方向と他の側部Ｓの一方向に湾曲した二個の脚部３５ＦＳ１、３５ＦＳ２、すなわち第１側部Ｓ１方向に向けて湾曲している脚部３５ＦＳ１と、第２側部Ｓ２方向に向けて湾曲している脚部３５ＦＳ２を有する。
第１側部Ｓ１−第２側部Ｓ２方向に見て、脚部３５ＦＳ１の幅は、脚部３５ＦＳ２の幅よりも狭く形成している。
第３側部Ｓ３−第４側部Ｓ４方向に見た厚み（幅）は、実質的に同じに形成している。
以上のように頭部３５Ｈの形態と、二つの脚部３５ＦＳ１、３５ＦＳ２を、第３側部Ｓ３−第４側部Ｓ４方向に見て、中心５ＢＣ（５ＬＣ）に対して非対称に形成している。 (Valve 35)
The valve 35 is different from the valve 15 in the arrangement positions of the head portion 35H, the leg portion 35F, and the leg portion 35F.
(Head 35H)
The head portion 35H forms an inclined portion 35SLS1 that is recessed in a substantially curved shape in one direction of the side portion S, that is, a so-called substantially elliptical recessed portion 35SLS1 that is in the first side portion S1 direction.
Instead of the leg portion 15F, two leg portions 35FS1 and 35FS2 that are curved in one direction of the side portion S and one direction of the other side portion S, that is, a leg portion that is curved toward the first side portion S1 direction. 35FS1 and the leg part 35FS2 curved toward the second side S2 direction.
The width of the leg portion 35FS1 is smaller than the width of the leg portion 35FS2 when viewed in the first side portion S1-second side portion S2 direction.
The thickness (width) viewed in the direction of the third side portion S3 to the fourth side portion S4 is formed to be substantially the same.
As described above, the shape of the head portion 35H and the two leg portions 35FS1 and 35FS2 are formed asymmetrically with respect to the center 5BC (5LC) when viewed in the third side portion S3-fourth side portion S4 direction. ..

台座は、バルブ１５の台座１５Ｂと同じである。脚部３５ＦＳ１、３５ＦＳ２の配置部１５ＢＦも台座１５Ｂと同じである。二つの脚部３５ＦＳ１、３５ＦＳ２の下部Ｄは、台座１５Ｂの円周（ＣＲ）方向の中心５ＢＣ（バルブ５の長手Ｌ方向の中心５ＣＬ）近傍の第１側部Ｓ１寄りと、第２側部Ｓ２寄りにそれぞれ配置している。 The pedestal is the same as the pedestal 15B of the valve 15. The arrangement portion 15BF of the legs 35FS1 and 35FS2 is also the same as the pedestal 15B. Lower portions D of the two leg portions 35FS1 and 35FS2 include a first side portion S1 near a center 5BC (a center 5CL in the longitudinal L direction of the valve 5) of the pedestal 15B in the circumferential (CR) direction and a second side portion S2. They are placed close to each other.

（バルブ４５）
バルブ４５がバルブ３５と異なる点は、第２側部Ｓ２方向に脚部４５ＦＳ２を一個のみ配置した点である。
バルブ４５は頭部３５Ｈの形態と、脚部４５Ｆを、第３側部Ｓ３−第４側部Ｓ４方向に見て、中心５ＢＣ（５ＬＣ）に対して非対称に形成している。 (Valve 45)
The valve 45 is different from the valve 35 in that only one leg portion 45FS2 is arranged in the second side S2 direction.
The valve 45 has the shape of the head portion 35H and the leg portion 45F formed asymmetrically with respect to the center 5BC (5LC) when viewed in the direction of the third side portion S3 to the fourth side portion S4.

（接続管１とバルブ５、１５、２５、３５、４５の使用方法）
接続管１の組み立て時は、頭部（５Ｈ、１５Ｈ、２５Ｈ、３５Ｈ、４５Ｈ）の上部Ｕ側の外周[傾斜部（５ＳＬ、１５ＳＬＵ、１５ＳＬＤ、２５ＳＬＳ１、２５ＳＬＳ２、３５ＳＬ）を除く）]と、ハウジング２の上部Ｕ側の内周は密着して、液密性を維持している。
頭部（５Ｈ、１５Ｈ、２５Ｈ、３５Ｈ、４５Ｈ）の上部Ｕ側から外圧を加えた際に、頭部（５Ｈ、１５Ｈ、２５Ｈ、３５Ｈ、４５Ｈ）は、脚部（５Ｆ、２５Ｆ、３５ＦＳ１、３５ＦＳ２、４５ＦＳ２）及び台座（５Ｂ、１５Ｂ、２５Ｂ）の変形とともに、上部Ｕ側から下部Ｄ側に移動する。 (How to use the connecting pipe 1 and the valves 5, 15, 25, 35, 45)
When assembling the connecting pipe 1, the outer periphery of the head (5H, 15H, 25H, 35H, 45H) on the upper U side [excluding the inclined portions (5SL, 15SLU, 15SLD, 25SLS1, 25SLS2, 35SL)], and the housing The inner periphery of the upper U side of No. 2 is in close contact and maintains liquid tightness.
When external pressure is applied from the upper U side of the head portion (5H, 15H, 25H, 35H, 45H), the head portion (5H, 15H, 25H, 35H, 45H), the leg portion (5F, 25F, 35FS1, 35FS2 , 45FS2) and the pedestals (5B, 15B, 25B) are deformed, and the upper U side moves to the lower D side.

頭部（５Ｈ、１５Ｈ、２５Ｈ、３５Ｈ、４５Ｈ）の上部Ｕ側の外周とハウジング２の上部Ｕ側の内周との密着は解除し、上部ハウジング２Ｕの上部Ｕ側の内周に隙間ｓｐができ、当該隙間ｓｐから下部ハウジング２Ｕの下部Ｄ側へ、液体を流通させることができる。
また下部管状部２ＤＴ、上部管状部２ＵＴを経て、液体を採取することができる。
頭部（５Ｈ、１５Ｈ、２５Ｈ、３５Ｈ、４５Ｈ）は上部Ｕ側からの外圧を解除すると、バルブ（５、１５、２５、３５、４５）は自己の弾性により元の形状に復元でき、再び液密性を維持することができる。 The close contact between the upper U-side outer circumference of the head (5H, 15H, 25H, 35H, 45H) and the upper U-side inner circumference of the housing 2 is released, and a gap sp is formed in the upper U-side inner circumference of the upper housing 2U. Therefore, the liquid can be circulated from the gap sp to the lower part D side of the lower housing 2U.
Further, the liquid can be collected through the lower tubular portion 2DT and the upper tubular portion 2UT.
When the head (5H, 15H, 25H, 35H, 45H) releases the external pressure from the upper U side, the valve (5, 15, 25, 35, 45) can be restored to its original shape by its own elasticity, and the liquid can be restored again. Denseness can be maintained.

以下図８のバルブ１５を装填した図６の接続管１の使用方法の一例について説明する。
図１２に例示するように、シリンジのルアーテーパーＳＹＲの下部Ｄ側を、上部ハウジング２の上部管状部２ＵＴの開口より挿入して、頭部１５Ｈの上部Ｕを下部Ｄ方向に押して外圧を加える。
頭部１５Ｈは、上部Ｕ側からルアーテーパーＳＹＲの圧力を受け、当該圧力は、脚部５Ｆを経て台座１５Ｂの脚部の配置部１５ＢＦに伝達される。脚部５Ｆ（略直立円柱状）は中間部で屈曲し、配置部１５ＢＦ（略矩形状）は脚部５Ｆに上部Ｕ側から押されて、下部Ｄ側に屈曲する。（図１２のようにＳ１−Ｄ―Ｓ２方向に湾曲ラインを描く。）
頭部１５Ｈは、脚部５Ｆ及び配置部１５ＢＦの変形に連動して、上部Ｕ側から下部Ｄ側に移動する。 An example of how to use the connecting pipe 1 of FIG. 6 in which the valve 15 of FIG. 8 is loaded will be described below.
As illustrated in FIG. 12, the lower D side of the luer taper SYR of the syringe is inserted through the opening of the upper tubular portion 2UT of the upper housing 2, and the upper U of the head portion 15H is pushed in the lower D direction to apply external pressure.
The head portion 15H receives the pressure of the luer taper SYR from the upper side U, and the pressure is transmitted to the leg arrangement portion 15BF of the pedestal 15B via the leg portion 5F. The leg portion 5F (substantially upright cylindrical shape) bends in the middle portion, and the arrangement portion 15BF (substantially rectangular shape) is pushed by the leg portion 5F from the upper U side and bends toward the lower D side. (Draw a curved line in the S1-D-S2 direction as shown in FIG. 12.)
The head portion 15H moves from the upper U side to the lower D side in conjunction with the deformation of the leg portion 5F and the arrangement portion 15BF.

ルアーテーパーＳＹＲの挿入前は、図６のように上部管状部２ＵＴの内周は、バルブ１５の上部鍔部１５ＦＵと下部鍔部１５ＦＤと密着して、液密性を維持している。
ルアーテーパーＳＹＲを前記のように挿入すると、頭部１５Ｈは下部Ｕ側へ移動して、上部管状部２ＵＴの内周とバルブ１５の上部鍔部１５ＦＵ及び下部鍔部１５ＦＤとの密着は解除される。
さらにルアーテーパーＳＹＲの下部Ｄ側と頭部１５Ｈの上部Ｕ側との間に隙間ｓｐができる。
以上より、ルアーテーパーＳＹＲの下部Ｄ側から隙間ｓｐを経て、さらにハウジング２内の空間ＳＰを経て、下部ハウジング２Ｕの下部管状部２ＤＴの下部Ｄへ、薬液（液体）を流通させ、患部へ注入することができる。
さらに患部より、下部管状部２ＤＴ、ハウジング２内の空間ＳＰ、隙間ｓｐを経て、患者の血液等をサンプリングすることができる。 Before the luer taper SYR is inserted, as shown in FIG. 6, the inner periphery of the upper tubular portion 2UT is in close contact with the upper flange portion 15FU and the lower flange portion 15FD of the valve 15 to maintain liquid tightness.
When the luer taper SYR is inserted as described above, the head portion 15H moves to the lower U side, and the close contact between the inner circumference of the upper tubular portion 2UT and the upper brim portion 15FU and the lower brim portion 15FD of the valve 15 is released. ..
Further, a gap sp is formed between the lower D side of the luer taper SYR and the upper U side of the head portion 15H.
As described above, the drug solution (liquid) is circulated to the lower part D of the lower tubular part 2DT of the lower housing 2U through the gap sp from the lower part D side of the luer taper SYR and further through the space SP in the housing 2, and then injected into the affected part. can do.
Further, blood and the like of the patient can be sampled from the affected part through the lower tubular part 2DT, the space SP in the housing 2, and the gap sp.

薬液（液体）の注入後（血液等をサンプリング終了後）、ルアーテーパーＳＹＲの下部Ｄを、上部管状部２ＵＴから引き抜いて、ルアーテーパーＳＹＲの下部Ｄの頭部１５Ｈへの圧力を解除すると、バルブ１５は自己の弾性力により、基の形状に復元して、図６のように上部管状部２ＵＴの内周は、バルブ１５の上部鍔部１５ＦＵと下部鍔部１５ＦＤと密着して、液密状態を維持することができる。
なおバルブ５、２５は、頭部５Ｈ、２５Ｈの上部Ｕ側（傾斜部５ＳＬ、２５ＳＬ１、２５ＳＬ２を除く）が上部管状部２ＵＴの内周と密着する点で、バルブ１５と異なる。
その他の点は、バルブ５、２５は、バルブ１５と実質的に同じであり、またバルブ３５、４５もバルブ１５と実質的に同じであるから詳細な説明は省略する。 After injection of the drug solution (after completion of sampling of blood etc.), the lower portion D of the luer taper SYR is pulled out from the upper tubular portion 2UT, and the pressure on the head portion 15H of the lower portion D of the luer taper SYR is released. 15 is restored to its original shape by its own elastic force, and the inner periphery of the upper tubular portion 2UT is in close contact with the upper flange portion 15FU and the lower flange portion 15FD of the valve 15 as shown in FIG. Can be maintained.
The valves 5 and 25 differ from the valve 15 in that the upper U side of the heads 5H and 25H (excluding the inclined portions 5SL, 25SL1 and 25SL2) is in close contact with the inner circumference of the upper tubular portion 2UT.
In other respects, the valves 5 and 25 are substantially the same as the valve 15, and the valves 35 and 45 are also substantially the same as the valve 15, so detailed description thereof will be omitted.

前記した図５、図８〜図１１の各バルブ５、１５、２５、３５、４５は、図１３、図１５〜図１８の各バルブ５ＦＲ、１５ＦＲ、２５ＦＲ、３５ＦＲ、４５ＦＲに示すように、各台座５Ｂ、１５Ｂ、２５Ｂの各スペース５ＢＳＰ、１５ＢＳＰ、２５ＢＳＰの外縁に、縁部ＦＲを形成することができる。
図１３、１７、１８の各バルブ１５ＦＲ、３５ＦＲ、４５ＦＲでは、第３側部Ｓ３−第４側部Ｓ４方向にそれぞれ縁部ＦＲＳ３、ＦＲＳ４を形成している。
図１５、１６の各バルブ５ＦＲ、２５ＦＲでは、第１側部Ｓ１−第２側部Ｓ２方向にそれぞれ縁部ＦＲＳ１、ＦＲＳ２を形成している。
なお図１３のバルブ１５ＦＲは、図８のバルブ１５と比較して、前記縁部ＦＲを形成した他にも、次の点で相違している。
台座１５Ｂの脚部５Ｆの配置部１５ＢＦは、第３側部Ｓ３−第４側部Ｓ４方向に見て、円周方向の中心５ＢＣ（長手Ｌ方向の中心５ＬＣ）よりも第２側部Ｓ２方向にオフセットしている。
これに伴い脚部５Ｆも配置部１５ＢＦと同様に中心５ＢＣ（中心５ＬＣ）よりも第２側部Ｓ２方向きにオフセットしている。スペース１５ＢＳＰは、Ｓ１とＳ２側に形成し（１５ＢＳＰＳ１、１５ＢＳＰ２）、スペース１５ＢＳＰＳ１は、スペース１５ＢＳＰＳ２よりも大きくなっている。 Each of the valves 5, 15, 25, 35, 45 shown in FIGS. 5 and 8 to 11 is as shown in each of the valves 5FR, 15FR, 25FR, 35FR, 45FR shown in FIGS. An edge portion FR can be formed at the outer edge of each space 5BSP, 15BSP, 25BSP of the pedestals 5B, 15B, 25B.
In each of the valves 15FR, 35FR, 45FR of FIGS. 13, 17 and 18, edge portions FRS3, FRS4 are respectively formed in the direction of the third side portion S3-fourth side portion S4.
In each of the valves 5FR and 25FR of FIGS. 15 and 16, edge portions FRS1 and FRS2 are formed in the first side portion S1-second side portion S2 direction, respectively.
The valve 15FR shown in FIG. 13 differs from the valve 15 shown in FIG. 8 in that the edge portion FR is formed and the following points are different.
The arrangement portion 15BF of the leg portion 5F of the pedestal 15B has a second side S2 direction rather than a circumferential center 5BC (longitudinal L direction center 5LC) when viewed in the third side S3-fourth side S4 direction. It is offset to.
Along with this, the leg portion 5F is also offset toward the second side portion S2 from the center 5BC (center 5LC) similarly to the arrangement portion 15BF. The space 15BSP is formed on the S1 and S2 sides (15BSPS1, 15BSP2), and the space 15BSPS1 is larger than the space 15BSPS2.

このように縁部ＦＲを形成することにより、各スペース５ＢＳＰ、１５ＢＳＰ、２５ＢＳＰの外縁が埋まるので、各バルブ５ＦＲ、１５ＦＲ、２５ＦＲ、３５ＦＲ、４５ＦＲの各台座５Ｂ、１５Ｂ、２５Ｂを、下部ハウジング２Ｄの載置部２ＤＰに装着し、続いて上部Ｕ側から上部ハウジング２Ｕで覆い、上部鍔部２ＵＦの内縁の壁面と（台座の）載置部２ＤＰの壁面との間で、各台座５Ｂ、１５Ｂ、２５Ｂの外縁（縁部ＦＲを含む）を挟持することにより、接続管１は十分な液密性を発揮することができる。 By forming the edge portion FR in this manner, the outer edges of the spaces 5BSP, 15BSP, 25BSP are filled, so that the pedestals 5B, 15B, 25B of the valves 5FR, 15FR, 25FR, 35FR, 45FR are attached to the lower housing 2D. The pedestal 5B, 15B is mounted on the mounting portion 2DP and then covered from the upper U side with the upper housing 2U, and between the wall surface of the inner edge of the upper flange portion 2UF and the wall surface of the mounting portion 2DP (of the pedestal). By sandwiching the outer edge (including the edge portion FR) of 25B, the connecting pipe 1 can exhibit sufficient liquid tightness.

図１４は、好適な実施例のバルブ５５ＦＲの一例を示している。バルブ５５ＦＲが図８のバルブ１５と異なる点は、脚部５５Ｆの形態と、台座５５Ｂのスペース５５ＢＳＰの外縁に縁部ＦＲを形成した点、下部鍔部５５ＦＤを面取り（Ｒ）加工している点である。
脚部５５Ｆは、二個の略管状体を上部Ｕと下部Ｄで結合し、上部開口部５５ＯＵと下部開口部５５ＯＤを形成している。
脚部５５Ｆは、第１側部Ｓ１（第２側部Ｓ２）方向から見て、いわゆる略眼鏡状の形態を有する。第３側部Ｓ３（第４側部Ｓ４）方向から見て、いわゆる略矩形状の形態を有する。
上部開口部５５ＯＵと下部開口部５５ＯＤは、略同一（実質的に同じ）の大きさ（径）を有する。 FIG. 14 shows an example of the valve 55FR of the preferred embodiment. The valve 55FR is different from the valve 15 of FIG. 8 in that the leg 55F is formed, the edge FR is formed on the outer edge of the space 55BSP of the pedestal 55B, and the lower flange 55FD is chamfered (R). Is.
The leg portion 55F connects two substantially tubular bodies at an upper portion U and a lower portion D to form an upper opening portion 55OU and a lower opening portion 55OD.
The leg portion 55F has a so-called substantially spectacle shape when viewed from the first side portion S1 (second side portion S2) direction. When viewed from the third side portion S3 (fourth side portion S4) direction, it has a so-called substantially rectangular shape.
The upper opening 55OU and the lower opening 55OD have substantially the same (substantially the same) size (diameter).

バルブ５５ＦＲは、前記のようにハウジング２内に装着して、接続管１として使用する時に、シリンジのルアーテーパーＳＹＲの末端（先端）が上部ハウジング２Ｕ内に入る長さＬ（例えば５ｍｍ）を１００とすると、上部開口部５５ＯＵと下部開口部５５ＯＤの大きさ（径）は、各５０（例えば２．５ｍｍ）に形成している。
頭部５５Ｈには、傾斜部５５ＳＬがあるため、ルアーテーパーＳＹＲにより、上部Ｕ側からの圧力を受けると、頭部５５Ｈは第１側部Ｓ１− 下部Ｄ側に変形し（押し下げられ）、上部開口部５５ＯＵと下部開口部５５ＯＤは潰れる。
すなわち、ルアーテーパーＳＹＲが「１００」上部ハウジング２Ｕ内に入る分だけ、上部開口部５５ＯＵと下部開口部５５ＯＤの各大きさ（径）「５０」は、実質的に「０」となるので、バルブ５５ＦＲは、「１００」の分だけ略直線的に下部Ｄ側に移動する（垂下する。）。 When the valve 55FR is mounted in the housing 2 as described above and is used as the connecting pipe 1, the length L (for example, 5 mm) of the end (tip) of the luer taper SYR of the syringe entering the upper housing 2U is 100. Then, the size (diameter) of each of the upper opening 55OU and the lower opening 55OD is 50 (for example, 2.5 mm).
Since the head portion 55H has the inclined portion 55SL, when the pressure from the upper side U is applied by the luer taper SYR, the head portion 55H is deformed (pushed down) to the first side portion S1-lower side D, and the upper portion. The opening 55OU and the lower opening 55OD are crushed.
That is, since the luer taper SYR is "100" in the upper housing 2U, the size (diameter) "50" of each of the upper opening 55OU and the lower opening 55OD is substantially "0". 55FR moves (droops) to the lower part D side in a substantially straight line by the amount of "100".

使用時において、図１４のバルブ５５ＦＲが図８のバルブ１５と異なる最大の特徴は以下のとおりである。
図１２のバルブ１５は、ルアーテーパーＳＹＲの圧力が前記段落［００３２］のように脚部の配置部１５ＢＦに伝達されて、当該配置部１５ＢＦは図１２のようにＳ１−Ｄ−Ｓ２側へ屈曲する。
これに対して図１４のバルブ５５ＦＲは、ルアーテーパーＳＹＲの圧力は、上部開口部５５ＯＵと下部開口部５５ＯＤの空間で吸収・緩和されるので、脚部の配置部５５ＢＦは、Ｓ１−Ｄ−Ｓ２側へほとんど屈曲しない。屈曲しても極わずかである。このためルアーテーパーＳＹＲから接続管１内に流入する液体は、上部ハウジング２Ｕからスペース５５ＢＳＰを経て（バルブ１５と比較して）速やかに下部ハウジング２Ｄ側へ流通することができる。
またバルブ５５ＦＲは、ルアーテーパーＳＹＲのからの圧力から開放された後は、（バルブ１５と比較して）速やかに安定した元の形状に復元することができる。
後述する図２０のバルブ５５も図１４のバルブ５５ＦＲと実質的に同じである。 In use, the greatest feature of the valve 55FR of FIG. 14 different from the valve 15 of FIG. 8 is as follows.
In the valve 15 of FIG. 12, the pressure of the luer taper SYR is transmitted to the leg arrangement portion 15BF as described in the paragraph [0032], and the arrangement portion 15BF bends toward the S1-D-S2 side as shown in FIG. To do.
On the other hand, in the valve 55FR of FIG. 14, the pressure of the luer taper SYR is absorbed/relaxed in the space between the upper opening 55OU and the lower opening 55OD, so that the leg arrangement portion 55BF is S1-D-S2. Almost no bending to the side. Even if it bends, it is very slight. Therefore, the liquid flowing from the luer taper SYR into the connecting pipe 1 can quickly flow from the upper housing 2U through the space 55BSP (compared to the valve 15) to the lower housing 2D side.
Further, the valve 55FR can be promptly restored to its stable original shape (compared to the valve 15) after being released from the pressure from the luer taper SYR.
The valve 55 of FIG. 20 described later is also substantially the same as the valve 55FR of FIG.

図１９は、好適な実施例のバルブ６５ＦＲの一例を示している。
バルブ６５ＦＲが、バルブ５５ＦＲと異なる点は、脚部６５Ｆの形態、上部傾斜部６５ＳＬＵと下部傾斜部６５ＳＬＤを有する点、台座６５Ｂは第３側部Ｓ３−第４側部Ｓ４側にスペース６５ＢＳＰＳ３、６５ＢＳＰＳ４を有し、当該スペース６５ＢＳＰＳ３、６５ＢＳＰＳ４の外縁に縁部ＦＲＳ３、ＦＲＳ４を形成した点である。
脚部６５Ｆは、二個の略半円柱状体ないし略角柱状体を、屈曲部６５Ｒを介して上部Ｕと下部Ｄで結合している。
下部Ｄ側−第１Ｓ１側に下部開口部６５ＯＤ、上部Ｕ側−第３側部Ｓ３側に上部開口部６５ＯＵを形成している。上部開口部６５ＯＵと下部開口部６５ＯＤは繋がっている。
脚部６５Ｆは、第１側部Ｓ１（第２側部Ｓ２）方向から見て、いわゆる略矩形状の形態を有する。
第３側部Ｓ３（第４側部Ｓ４）方向から見て、いわゆる略Ｓ字状の形態を有する。
上部開口部６５ＯＵと下部開口部６５ＯＤは、上下方向に同一の大きさ（長さ）を有する。
脚部６５Ｆは、第３側部Ｓ３（第４側部Ｓ４）方向から見て、長手Ｌ方向の中心５ＬＣに対して、上部Ｕ側は第１側部Ｓ１寄りにオフセットし、下部Ｄ側は第２側部Ｓ２寄りにオフセットしている。 FIG. 19 shows an example of the valve 65FR of the preferred embodiment.
The valve 65FR is different from the valve 55FR in the form of a leg portion 65F, having an upper inclined portion 65SLU and a lower inclined portion 65SLD, and a pedestal 65B having a space 65BSPS3, 65BSPS4 on the third side S3-fourth side S4 side. And the edges FRS3 and FRS4 are formed on the outer edges of the spaces 65BSPS3 and 65BSPS4.
The leg portion 65F is formed by connecting two substantially semi-cylindrical bodies or substantially prismatic bodies at an upper portion U and a lower portion D via a bent portion 65R.
A lower opening 65OD is formed on the lower D side-first S1 side, and an upper opening 65OU is formed on the upper U side-third side S3 side. The upper opening 65OU and the lower opening 65OD are connected.
The leg portion 65F has a so-called substantially rectangular shape when viewed from the first side portion S1 (second side portion S2) direction.
It has a so-called substantially S-shape when viewed from the third side S3 (fourth side S4) direction.
The upper opening 65OU and the lower opening 65OD have the same size (length) in the vertical direction.
When viewed from the third side S3 (fourth side S4) direction, the leg 65F is offset from the center 5LC in the longitudinal L direction on the upper U side toward the first side S1 and on the lower D side. It is offset toward the second side portion S2.

バルブ６５ＦＲは、前記のようにハウジング２内に装着して、接続管１として使用する時に、シリンジのルアーテーパーＳＹＲの末端（先端）が上部ハウジング２Ｕ内に入る長さＬ（例えば５ｍｍ）を１００とすると、上部開口部６５ＯＵと下部開口部６５ＯＤの大きさ（径）は、各５０（例えば２．５ｍｍ）に形成している。
頭部６５Ｈには、傾斜部６５ＳＬＵ、６５ＳＬＤがあるため、ルアーテーパーＳＹＲにより、上部Ｕ側からの圧力を受けると、頭部６５Ｈは第１側部Ｓ１− 下部Ｄ側に変形し（押し下げられ）、上部開口部６５ＯＵと下部開口部６５ＯＤは潰れる。
すなわち、ルアーテーパーＳＹＲが「１００」上部ハウジング２Ｕ内に入る分だけ、上部開口部６５ＯＵと下部開口部６５ＯＤの各大きさ（径）「５０」は、実質的に「０」となるので、バルブ６５ＦＲは、「１００」の分だけ略直線的に下部Ｄ側に移動する（垂下する。）。 The valve 65FR has a length L (for example, 5 mm) of 100 at which the end (tip) of the luer taper SYR of the syringe fits inside the upper housing 2U when the valve 65FR is mounted in the housing 2 and used as the connecting pipe 1. Then, the size (diameter) of each of the upper opening 65OU and the lower opening 65OD is 50 (for example, 2.5 mm).
Since the head 65H has the inclined portions 65SLU and 65SLD, when pressure is applied from the upper U side by the luer taper SYR, the head 65H is deformed (pushed down) to the first side S1-lower D side. The upper opening 65OU and the lower opening 65OD are crushed.
That is, since the luer taper SYR is “100” in the upper housing 2U, the size (diameter) “50” of the upper opening 65OU and the lower opening 65OD is substantially “0”. The 65FR moves (droops) to the lower D side in a substantially straight line by the amount of "100".

図１９のバルブ６５ＦＲも図１４のバルブ５５ＦＲと同様に、ルアーテーパーＳＹＲの圧力は、上部開口部６５ＯＵと下部開口部６５ＯＤの空間で吸収・緩和されるので、脚部の配置部６５ＢＦは、Ｓ１−Ｄ−Ｓ２側へほとんど屈曲しない。屈曲しても極わずかである。このためルアーテーパーＳＹＲから接続管１内に流入する液体は、上部ハウジング２Ｕからスペース６５ＢＳＰを経て（バルブ１５と比較して）速やかに下部ハウジング２Ｄ側へ流通することができる。
またバルブ６５ＦＲは、ルアーテーパーＳＹＲのからの圧力から開放された後は、（バルブ１５と比較して）速やかに安定した元の形状に復元することができる。
後述する図２２のバルブ６５も図１９のバルブ６５ＦＲと実質的に同じである。 As with the valve 55FR of FIG. 14, the valve 65FR of FIG. 19 absorbs and relaxes the pressure of the luer taper SYR in the space between the upper opening 65OU and the lower opening 65OD. Almost no bending to the D-S2 side. Even if it bends, it is very slight. Therefore, the liquid flowing from the luer taper SYR into the connection pipe 1 can quickly flow from the upper housing 2U through the space 65BSP (compared to the valve 15) to the lower housing 2D side.
Further, the valve 65FR can be promptly restored to its stable original shape (compared to the valve 15) after being released from the pressure from the luer taper SYR.
The valve 65 of FIG. 22 described later is also substantially the same as the valve 65FR of FIG.

図２０は、図１４のバルブ５５ＦＲから、縁部ＦＲを削除したバルブ５５の例である。
このようなバルブ５５は、図２１のように別部品として略環状のパッキンＰを使用して、接続管１を組み立てることより、接続管１は十分な液密性を発揮することができる。
すなわち上部ハウジング２Ｕ（図示せず）と下部ハウジング２Ｄとの間にパッキンＰを配置する。
さらに詳述すれば、バルブ５５の台座５５Ｂを下部ハウジング２Ｄの載置部２ＤＰの上部Ｕに装着（載置）し、下部ハウジング２Ｄの下部接続部（突起）２ＤＣの
内周に圧入して装着する。
当該下部接続部（突起）２ＤＣの上部ＵにパッキンＰを載置する。続いて上部Ｕ側から上部ハウジング２Ｕで覆い、第１上部接続部（２ＵＣ１）と下部接続部（２ＤＣ）を嵌合して、第１上部接続部（溝）２ＵＣ１と前記下部接続部（突起）２ＤＣとの間で、パッキンＰを挟持し、台座５５Ｂの外縁を、上部鍔部２ＵＦの内縁と載置部２ＤＰとの間で固定することにより、接続管１は十分な液密性を発揮することができる。 FIG. 20 is an example of the valve 55 in which the edge portion FR is removed from the valve 55FR of FIG.
As shown in FIG. 21, such a valve 55 uses the substantially annular packing P as a separate component to assemble the connecting pipe 1 so that the connecting pipe 1 can exhibit sufficient liquid tightness.
That is, the packing P is arranged between the upper housing 2U (not shown) and the lower housing 2D.
More specifically, the pedestal 55B of the valve 55 is mounted (placed) on the upper portion U of the mounting portion 2DP of the lower housing 2D, and is press-fitted and mounted on the inner periphery of the lower connecting portion (protrusion) 2DC of the lower housing 2D. To do.
The packing P is placed on the upper portion U of the lower connecting portion (protrusion) 2DC. Subsequently, the upper housing 2U is covered from the upper U side, the first upper connecting portion (2UC1) and the lower connecting portion (2DC) are fitted to each other, and the first upper connecting portion (groove) 2UC1 and the lower connecting portion (projection). The connecting pipe 1 exhibits sufficient liquid tightness by sandwiching the packing P with 2DC and fixing the outer edge of the pedestal 55B between the inner edge of the upper flange portion 2UF and the mounting portion 2DP. be able to.

図２２は、図１９のバルブ６５ＦＲから縁部ＦＲを削除したバルブ６５の例で、図２１と同様に別部品としてパッキンＰを使用することより、接続管１は十分な液密性を発揮することができる。
前記した図５、図８〜図１１の縁部ＦＲのない各バルブ５、１５、２５、３５、４５も図２１と同様に別部品としてパッキンＰを使用することより、接続管１は十分な液密性を発揮することができる。 FIG. 22 is an example of the valve 65 in which the edge portion FR is removed from the valve 65FR of FIG. 19, and by using the packing P as a separate component similarly to FIG. 21, the connection pipe 1 exhibits sufficient liquid tightness. be able to.
The valves 5, 15, 25, 35, and 45 without the edge FR in FIGS. 5 and 8 to 11 described above also use the packing P as a separate component as in FIG. Liquid tightness can be exhibited.

（バルブ７５ＦＲとバルブ７５ＦＲを配置した接続管１１（１１．７５ＦＲ）とその使用例）
図２３は、好適な実施例のバルブ７５ＦＲと当該バルブ７５ＦＲをハウジング１２に装填した接続管１１（１１．７５ＦＲ）とその使用例の一例を示している。
バルブ７５ＦＲが図１４バルブ５５ＦＲと異なる点は、脚部７５Ｆの形態と向き［（これに伴う脚部の配置部７５ＢＦの向き／Ｓ１−Ｓ２方向、スペース７５ＢＳＰ（図１４のバルブ５５ＦＲのスペース５５ＢＳＰに対応）の配置方向／７５ＢＳＰＳ３と７５ＢＳＰＳ４方向）］である。
脚部７５Ｆは、二個の略管状体と一個の略半管状体を上部Ｕから下部Ｄに向けて結合し、上部開口部７５ＯＵ、下部口部７５ＯＤを形成し、当該下部口部７５ＯＤと台座７５Ｂ（脚部の配置部７５ＢＦ）との間に、半開口部７５ＯＭＤを形成している。
脚部７５Ｆは、第１側部Ｓ１（第２側部Ｓ２）方向から見て、いわゆる略矩形状の形態を有する。第３側部Ｓ３（第４側部Ｓ４）方向から見て、いわゆる略眼鏡状の形態を有する。
上部開口部７５ＯＵと下部開口部７５ＯＤは、略同一（実質的に同じ）の大きさ（径）を有する。
半開口部７５ＯＭＤは、上部開口部７５ＯＵ（下部開口部７５ＯＤ）の約半分の大きさ（径）を有する。
ハウジング１２がハウジング２と異なる点は、下部ハウジング２Ｄの形態である。
ハウジング１２は、下部ハウジング２Ｄに、側部Ｓ及び下部Ｄ側に傾斜した側管２ＳＤＴを装着している。
バルブ７５ＦＲとバルブ７５ＦＲを配置した接続管１１は、バルブ５５ＦＲとバルブ５５ＦＲを配置した接続管１と、前記異なる点（部材）以外は実質的に前記バルブ５５ＦＲとバルブ５５ＦＲを配置した接続管１と同じであるから、説明の煩雑さを軽減するめにあえて記載せず、図２３にもその符号はあえて記載していない。 (Valve 75FR and connecting pipe 11 (11.75FR) in which valve 75FR is arranged and its usage example)
FIG. 23 shows an example of the valve 75FR of the preferred embodiment, the connecting pipe 11 (11.75FR) in which the housing 75 is loaded with the valve 75FR, and an example of use thereof.
The valve 75FR is different from the valve 55FR in FIG. 14 in that the shape and orientation of the leg 75F [(the orientation of the leg placement portion 75BF accompanying this /S1-S2 direction, space 75BSP (in the space 55BSP of the valve 55FR in FIG. 14 (Corresponding direction)/75BSPS3 and 75BSPS4 direction)].
The leg portion 75F connects two substantially tubular bodies and one substantially semi-tubular body from the upper portion U to the lower portion D to form an upper opening portion 75OU and a lower opening portion 75OD, and the lower opening portion 75OD and the pedestal. The semi-opening 75OMD is formed between the half opening 75M and 75B (leg arrangement portion 75BF).
The leg portion 75F has a so-called substantially rectangular shape when viewed from the first side portion S1 (second side portion S2) direction. When viewed from the third side portion S3 (fourth side portion S4) direction, it has a so-called substantially spectacle shape.
The upper opening 75OU and the lower opening 75OD have substantially the same (substantially the same) size (diameter).
The half opening 75OMD has about half the size (diameter) of the upper opening 75OU (lower opening 75OD).
The housing 12 differs from the housing 2 in the form of the lower housing 2D.
In the housing 12, the side tube 2SDT inclined to the side portion S and the lower portion D side is attached to the lower housing 2D.
The connecting pipe 11 in which the valve 75FR and the valve 75FR are arranged is the connecting pipe 1 in which the valve 55FR and the valve 55FR are arranged, and the connecting pipe 1 in which the valve 55FR and the valve 55FR are arranged substantially except for the different points (members). Since they are the same, they are not shown in order to reduce the complexity of the description, and the reference numerals are not shown in FIG. 23.

バルブ７５ＦＲは、前記のように、ハウジング１２内に配置して、接続管１１として使用する時に、シリンジのルアーテーパーＳＹＲの末端（先端）が上部ハウジング２Ｕ内に入る長さＬ（例えば５ｍｍ）を１００とすると、上部開口部７５ＯＵと下部間口部７５ＯＤの大きさ（径）は、各５０（例えば２．５ｍｍ）に形成している。
頭部７５Ｈには、傾斜部７５ＳＬがあるため、ルアーテーパーＳＹＲにより、上部Ｕ側からの圧力を受けると、頭部７５Ｈは第１側部Ｓ１− 下部Ｄ側に変形し（押し下げられ）、上部開口部７５ＯＵと下部開口部７５ＯＤは潰れる。
すなわち、ルアーテーパーＳＹＲが「１００」上部ハウジング２Ｕ内に入る分だけ、上部開口部７５ＯＵと下部開口部７５ＯＤの各大きさ（径）「５０」は、実質的に「０」となるので、バルブ７５ＦＲは、「１００」の分だけ略直線的に下部Ｄ側に移動する（垂下する。）。 As described above, the valve 75FR has a length L (for example, 5 mm) at which the end (tip) of the luer taper SYR of the syringe enters the upper housing 2U when the valve 75FR is arranged in the housing 12 and used as the connecting pipe 11. Assuming 100, the size (diameter) of the upper opening 75OU and the lower frontage 75OD is 50 (for example, 2.5 mm).
Since the head 75H has the inclined portion 75SL, when the pressure from the upper U side is applied by the luer taper SYR, the head 75H is deformed (pushed down) to the first side S1-lower D side, and the upper portion. The opening 75OU and the lower opening 75OD are crushed.
That is, since the luer taper SYR is "100" in the upper housing 2U, the size (diameter) "50" of the upper opening 75OU and the lower opening 75OD is substantially "0". The 75FR moves (droops) to the lower side D substantially linearly by the amount of "100".

図２３のバルブ７５ＦＲは、図１４のバルブ５５ＦＲと比較して、さらに半開口部７５ＯＭＤを有するので、ルアーテーパーＳＹＲの圧力は、上部開口部７５ＯＵ、下部開口部７５ＯＤ及び半開口部７５ＯＭＤの空間で吸収・緩和されるので、脚部の配置部７５ＢＦは、Ｓ１−Ｄ−Ｓ２側へ実質的に屈曲しない。屈曲してもバルブ５５ＦＲの配置部５５ＢＦよりもさらに極小である。
このためバルブ７５ＦＲは、バルブ５５ＦＲよりもさらに液体の流通や、安定した形状の復元に優れる。
後述するバルブ７５もバルブ７５ＦＲと実質的に同じである。 Since the valve 75FR of FIG. 23 further has the half opening 75OMD as compared with the valve 55FR of FIG. 14, the pressure of the luer taper SYR is in the space of the upper opening 75OU, the lower opening 75OD and the half opening 75OMD. Since it is absorbed and relaxed, the leg placement portion 75BF does not substantially bend toward the S1-D-S2 side. Even if it is bent, it is much smaller than the arrangement portion 55BF of the valve 55FR.
Therefore, the valve 75FR is superior to the valve 55FR in the flow of liquid and the restoration of a stable shape.
A valve 75 described later is also substantially the same as the valve 75FR.

図２３のバルブ７５ＦＲは、前記ハウジング２（ハウジング１２の側管２ＳＤＴがないもの）に配置して、接続管１として使用することができる。
また図２３のバルブ７５ＦＲから縁部ＦＲを削除したバルブ７５も、図２０のバルブ５５と同様に図２１のようにパッキンＰを使用して、接続管１（１．７５）として使用することができる。
また前記バルブ（５、１５、２５、３５、４５、５５、６５、７５、５ＦＲ、１５ＦＲ、２５ＦＲ、３５ＦＲ、４５ＦＲ、５５ＦＲ、６５ＦＲ）も、バルブ７５ＦＲと同様にハウジング１２に配置して、接続管１１として使用することができる。 The valve 75FR in FIG. 23 can be used as the connecting pipe 1 by being arranged in the housing 2 (the housing 12 without the side pipe 2SDT).
Further, the valve 75 in which the edge portion FR is removed from the valve 75FR in FIG. 23 can also be used as the connecting pipe 1 (1.75) by using the packing P as in FIG. 21 similarly to the valve 55 in FIG. it can.
Also, the valves (5, 15, 25, 35, 45, 55, 65, 75, 5FR, 15FR, 25FR, 35FR, 45FR, 55FR, 65FR) are arranged in the housing 12 in the same manner as the valve 75FR, and the connection pipe It can be used as 11.

１（１．５、１．１５、１．２５、１．３５、１．４５、１．５５、１．６５、１．５ＦＲ、１．１５ＦＲ、１．２５ＦＲ、１．３５ＦＲ、１．４５ＦＲ、１．５５ＦＲ、１．６５ＦＲ）、１１（１１．７５ＦＲ）接続管
２、１２ハウジング
２Ｕ上部ハウジング
２ＵＴ上部管状部
２ＵＦ上部鍔部
２ＵＣ１第１上部接続部（溝）
２ＵＣ２第２上部接続部（螺子状突起）
２Ｄ下部ハウジング
２ＤＴ下部管状部
２ＳＤＴ側管
２ＤＦ下部鍔部
２ＤＣ下部接続部（突起）
２ＤＰ（台座の）載置部
５、１５、２５、３５、４５、５５、６５、７５、５ＦＲ、１５ＦＲ、２５ＦＲ、３５ＦＲ、４５ＦＲ、５５ＦＲ、６５ＦＲ、７５ＦＲバルブ
ＦＲ縁部
５Ｈ、１５Ｈ、２５Ｈ、３５Ｈ、４５Ｈ、５５Ｈ、６５Ｈ、７５Ｈ頭部
５ＬＣ長手Ｌ方向の中心
５ＳＬ、３５ＳＬ、５５ＳＬ、７５ＳＬ傾斜部
１５ＳＬＵ、６５ＳＬＵ上部傾斜部（上部Ｕ方向）
１５ＳＬＤ、６５ＳＬＤ下部傾斜部（下部Ｄ方向）
２５ＳＬＳ１傾斜部（第１側部Ｓ１方向）
２５ＳＬＳ２傾斜部（第２側部Ｓ２方向）
１５ＦＵ、５５ＦＵ、６５ＦＵ、７５ＦＵ上部鍔部
１５ＦＤ、５５ＦＤ、６５ＦＤ、７５ＦＤ下部鍔部
５Ｆ脚部（オフセット）
２５Ｆ脚部
３５ＦＳ１脚部（第１側部Ｓ１方向）
３５ＦＳ２脚部（第２側部Ｓ２方向）
４５ＦＳ２脚部（第２側部Ｓ２方向）
５Ｂ、１５Ｂ、２５Ｂ、５５Ｂ、６５Ｂ、７５Ｂ台座
５ＢＣ円周ＣＲ方向の中心
５ＢＦ、１５ＢＦ、２５ＢＦ、５５ＢＦ、６５ＢＦ、７５ＢＦ（脚部の）配置部
５ＢＳＰＳ１、１５ＢＳＰＳ１、２５ＢＳＰＳ１、５５ＢＳＰＳ１スペース（第１側部Ｓ１）
５ＢＳＰＳ２、１５ＢＳＰＳ２、２５ＢＳＰＳ２、５５ＢＳＰＳ１スペース（第２側部Ｓ２）
１５ＢＳＰＳ３、６５ＢＳＰＳ３、７５ＢＳＰ３スペース（第３側部Ｓ３）
１５ＢＳＰＳ４、６５ＢＳＰＳ４、７５ＢＳＰ４スペース（第４側部Ｓ４）
ＳＹＲルアーテーパー（シリンジ）
５５ＯＵ、６５ＯＵ、７５ＯＵ上部開口部
５５ＯＤ、６５ＯＤ、７５ＯＤ下部開口部
７５ＯＭＤ半開口部
６５Ｒ屈曲部 1 (1.5, 1.15, 1.25, 1.35, 1.45, 1.55, 1.65, 1.5FR, 1.15FR, 1.25FR, 1.35FR, 1.45FR, 1.55FR, 1.65FR), 11 (11.75FR) Connection pipes 2, 12 Housing 2U Upper housing 2UT Upper tubular portion 2UF Upper flange portion 2UC1 First upper connecting portion (groove)
2UC2 Second upper connection part (screw-like protrusion)
2D lower housing 2DT lower tubular portion 2SDT side tube 2DF lower collar portion 2DC lower connecting portion (projection)
2DP (pedestal) mounting portion 5, 15, 25, 35, 45, 55, 65, 75, 5FR, 15FR, 25FR, 35FR, 45FR, 55FR, 65FR, 75FR Valve FR edge portion 5H, 15H, 25H, 35H , 45H, 55H, 65H, 75H Head 5LC Longitudinal L direction center 5SL, 35SL, 55SL, 75SL Inclined part 15SLU, 65SLU Upper inclined part (upper U direction)
15SLD, 65SLD Lower inclined part (lower D direction)
25SLS1 inclined part (first side part S1 direction)
25SLS2 inclined part (2nd side part S2 direction)
15FU, 55FU, 65FU, 75FU Upper collar 15FD, 55FD, 65FD, 75FD Lower collar 5F Leg (offset)
25F leg portion 35FS1 leg portion (first side portion S1 direction)
35FS2 leg part (2nd side part S2 direction)
45FS2 leg (2nd side S2 direction)
5B, 15B, 25B, 55B, 65B, 75B Pedestal 5BC Center 5BF, 15BF, 25BF, 55BF, 65BF, 75BF (leg part) arrangement part 5BSPS1, 15BSPS1, 25BSPS1, 55BSPS1 space in the circumferential CR direction (first side part) S1)
5BSPS2, 15BSPS2, 25BSPS2, 55BSPS1 space (second side S2)
15BSPS3, 65BSPS3, 75BSP3 space (3rd side S3)
15BSPS4, 65BSPS4, 75BSP4 space (4th side S4)
SYR lure taper (syringe)
55OU, 65OU, 75OU Upper opening 55OD, 65OD, 75OD Lower opening 75OMD Half opening 65R Bent

Claims

A connecting pipe in which a valve is arranged in the space of the housing,
The valve has a head portion provided on the upper side, a leg portion provided on the lower side of the head portion, and a pedestal provided on the lower side of the leg portion ,
The leg portion extends substantially parallel to the vertical direction connecting the center of the head and the center of the pedestal, and the length in the orthogonal direction substantially orthogonal to the vertical direction is the length of the head in the orthogonal direction. Smaller than that, and arranged laterally offset from the central axis along the vertical direction, the overall shape of the valve is formed asymmetrical to the central axis,
Maintaining liquid tightness in a state where the outer periphery on the upper side of the head is in close contact with the inner periphery on the upper side of the housing,
When external pressure is applied from the upper side of the head, the head moves downward with the deformation of the legs, and the outer periphery of the upper side of the head is separated from the inner periphery of the upper side of the housing and the liquid is discharged. A connection pipe characterized in that a gap is formed through which the liquid can flow.

The connection pipe according to claim 1, wherein the head portion has an inclined portion formed in a portion lower than a portion in close contact with an upper inner periphery of the housing.

Before SL pedestal connection tube according to claim 1 on at least one portion of the one-way side, said legs for deformation to form a space that is arranged, characterized in that.