JP4443162B2 - Coupling device - Google Patents

Coupling device Download PDF

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JP4443162B2
JP4443162B2 JP2003280658A JP2003280658A JP4443162B2 JP 4443162 B2 JP4443162 B2 JP 4443162B2 JP 2003280658 A JP2003280658 A JP 2003280658A JP 2003280658 A JP2003280658 A JP 2003280658A JP 4443162 B2 JP4443162 B2 JP 4443162B2
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portion
tube
member
outer cylinder
outer
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JP2004141646A (en
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博人 鈴木
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株式会社トップ
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本発明は、継ぎ手装置に関し、詳しくは、例えば、点滴の薬液流路に設けてシリンジやチューブ等を接続する継ぎ手装置に関する。 The present invention relates to a joint device, particularly, for example, it relates to joint device for connecting a syringe or tube or the like provided in the liquid medicine flow channel infusion.

従来、この種の継ぎ手装置は、円筒状の外筒内部に延設された中空の管体と、外筒内部において該管体に外挿されて進退方向に摺動自在の筒状部材とを備えている(例えば、特許文献1参照)。 Conventionally, this kind of joint device comprises a hollow tube which extends inside an outer cylinder and a slidable tubular member forward and backward direction are extrapolated to the tube body inside the outer cylinder It includes (e.g., see Patent Document 1).

前記管体は、その閉塞された先端近傍の周壁に開口する側孔が形成されており、前記筒状部材は、管体の先端部に位置するとき側孔を閉塞する。 The tubular body, the side hole opened in the peripheral wall of the occluded tip vicinity are formed, the tubular member, closes the side hole when located in the tube of the tip portion. これにより、外筒の先端にシリンジのルアーテーパ等を挿着したとき、シリンジやチューブ等の先端に設けられた筒状のルアーテーパ部に押圧された筒状部材が後退して管体の側孔が開放されると同時に、管体が前記ルアーテーパ部の内部に侵入して導通状態となる。 Accordingly, when inserting the like luer taper tip of the syringe outer cylinder, the side hole of retracts the pressed tubular member to the tubular luer taper portion provided at a distal end, such as a syringe or tube tubular body At the same time is released, it turned tubular body to enter the interior of the luer tapered portion. また、外筒内部にはコイルスプリングが設けられており、該コイルスプリングによって後退時の筒状部材を前進方向に付勢する。 Further, inside the outer cylinder and a coil spring is provided to bias the tubular member during retraction in the forward direction by the coil spring. これにより、外筒の先端から前記ルアーテーパ部を抜き取った際に、該コイルスプリングの付勢により筒状部材が前進し、管体の側孔が閉塞される。 Thus, when the withdrawn the luer tapered portion of the distal end of the outer tube, the tubular member is advanced by the biasing force of the coil spring, the side hole of the tube is closed.

しかし、このような従来の構成によると、外筒の先端に前記ルアーテーパ部を挿着したとき、その挿着状態が不十分であると、筒状部材の後退距離が少なくなり、前記管体の側孔が完全に開放されないことがある。 However, according to such a conventional structure, when the distal end of the outer tube was inserted the luer tapered portion, when the inserted state is insufficient, retreat distance of the tubular member is reduced, the tube sometimes side hole is not completely open. そして、前記管体の側孔の開放が不完全である場合には、十分な連通状態を得ることができず例えば薬液の円滑な流動が阻害される不都合がある。 When the opening of the side hole of the pipe body is incomplete, there is a disadvantage that smooth enough not possible to obtain a communication state for example chemical flow is inhibited.
特開平10−15079号公報 JP-10-15079 discloses

かかる不都合を解消して、本発明は、シリンジやチューブ等の先端に設けられた筒状の被接続物を接続した際に管体との確実な連通状態を形成することができる構造簡単な継ぎ手装置を提供することを目的とする。 To eliminate such an inconvenience, the present invention has the structure simple joint which can form a reliable communication with the tube when connecting the syringe or connection object tubular provided at the distal end of such tubes and to provide a device.

かかる目的を達成するために、本発明の継ぎ手装置の第1の態様は、筒状の被接続物を挿入して接続可能に開口する接続部を先端に備える有底円筒状の外筒と、該外筒の軸心に沿って延設されて後端が外筒の底部外方に連通し、先端が前記接続部から所定距離を存して該外筒内部に位置すると共に該接続部に向って軸線方向に開口する中空の管体と、前記外筒にその軸線方向に進退自在に収納されて前進位置において該外筒及び前記管体を閉塞する弾性材料による閉塞部材と、該閉塞部材における前記管体の先端に対向する位置に、該閉塞部材の後退に伴って前記管体が挿通する挿通孔と、前記管体が前記挿通孔を貫通したとき、該管体に沿って後退した閉塞部材を前進方向に付勢する付勢手段とを備えてなり、前記閉塞部材は、前記挿通孔 To achieve the above object, a first aspect of the joint device of the present invention includes: a bottomed cylindrical outer tube having a connecting portion for connectable opened by inserting a tubular connection object to the tip, to the connecting portion with extends along the axis of the outer cylinder and the rear end communicating with the bottom outer side of the outer tube, the tip is located inside the outer cylinder to exist a predetermined distance from said connecting portion a hollow tubular body which is open axially towards the closure member by an elastic material for closing the outer cylinder and the tube body in the advanced position are retractably housed in the axial direction of the outer cylinder, the closure member a position opposing to the tip of the tube body in a through hole of the tubular body along with the retraction of the closure member is inserted, when the front Symbol tube penetrates the insertion hole, retracted along the tube body it includes a biasing means for biasing the the closing member in the forward direction, the closing member, the insertion hole 備えて前記外筒の接続部に挿脱自在に嵌合する栓部と、該栓部の後端に連設されて前記管体の外周壁に液密に密着する円筒状の管体密着部とを備え、前記栓部が前記外筒の接続部に嵌合したとき、前記挿通孔を閉塞する方向に栓部の外周から締め付ける締め付け手段を設け、前記管体密着部の外周に、前記栓部が前記外筒の接続部に嵌合しているとき及び閉塞部材の進退移動時に前記管体密着部を前記管体に圧接して密着させる環状の圧接部材を設けたことを特徴とする。 A plug portion that fits in detachably to the connecting portion of the outer cylinder comprises a cylindrical tubular body contact portion in close contact with the liquid-tight to the outer peripheral wall of the tubular body is provided continuously to the rear end of said closure portion with the door, when the plug part is fitted in the connecting portion of the outer cylinder, the clamping means is tightened from the outer periphery of the plug portion is provided in a direction for closing the insertion hole, the outer periphery of the tubular body contact portion, the plug parts is characterized in that a pressure contact member of the annular be adhered by pressing the tube body contact portion on the pipe body during advance and retreat when and closure member fitted in the connecting portion of the outer cylinder.

本発明の継ぎ手装置によれば、例えばシリンジやチューブ等の先端に設けられたルアーテーパ部(筒状の被接続物)を前記外筒に挿着したとき、前記閉塞部材が押圧されて前記管体に沿って後退される。 According to the joint device of the present invention, for example when the luer tapered portion provided at a distal end of such syringe and tube (tubular connection object) was inserted into the outer cylinder, said tube body said closure member is pressed It is retracted along the. これに伴い、該管体が閉塞部材に形成された挿通孔を介して該閉塞部材を貫通する。 Accordingly, through the closing member through the insertion hole tube body is formed on the closing member. 前記管体の先端は軸線方向に向って開口しているので、該管体の先端が閉塞部材を貫通した時点で該管体の先端開口部の閉塞が解除され、シリンジやチューブ等のルアーテーパ部に連通する。 Since the tip of the tubular body is open toward the axial direction, occlusion of the distal opening of the tube body when the distal end of the tube body is passed through the closing member is released, the syringe and luer tapered portion of such tubes communicating with. このように、本発明の継ぎ手装置は、管体の先端が閉塞部材を貫通した時点で確実に管体の先端の開口部を開放することができ、従来のような管体の周壁に開口する側孔を筒状部材が開閉するものに比して管体の開口部の開放が不十分となることを防止することができる。 Thus, the joint device of the present invention can be tube tip to open the opening of reliably tube tip at the time of penetrating the closure member is opened in the peripheral wall of the conventional kind of tube opening the opening of the compared to those of the side hole is a cylindrical member for opening and closing the tubular body can be prevented from becoming insufficient.
そして、シリンジやチューブ等のルアーテーパ部を前記外筒から抜き取った場合には、前記付勢手段の付勢力によって閉塞部材が前進する。 Then, when withdrawn luer tapered portion, such as a syringe or tube from said outer cylinder, the closure member moves forward by the biasing force of the biasing means. これにより、該閉塞部材の挿通孔から管体が抜けて挿通孔がその弾性により弾発的に閉じられ、該閉塞部材によって管体の開口部が閉塞される。 Accordingly, the insertion hole tube escapes from the insertion hole of the closure member is resiliently closed by its elasticity, the opening of the tube by the closure member is closed.
ところで、前記管体は、その先端が軸線方向に向って開口し、該開口部を閉塞する閉塞部材の先端には管体の開口部に対向して前記挿通孔が形成されている。 Incidentally, the tubular body is open towards the front end in the axial direction, the insertion hole at the tip of the closing member for closing the opening opposite to the opening of the tubular body is formed. このため、管体の開口部を介して流動する薬液等が前記挿通孔に突き当たったとき、挿通孔がその弾性により閉じている状態を破って閉塞部材の外方に薬液等が漏れ出すおそれがある。 Therefore, when a drug solution or the like flowing through the opening of the tubular body abuts the insertion hole, a possibility that insertion hole chemical solution from leaking to the outside of the closing member defeating the closed state by its elasticity is there.
そこで、本発明においては、前記締め付け手段を設け、該締め付け手段によって挿通孔をその閉塞方向に締め付けている。 Therefore, in the present invention, the fastening means is provided, which clamping an insertion hole in its closed direction by the clamping means. これによって、管体の開口部に対向して前記挿通孔が形成されていても該挿通孔からの薬液等の漏れ出しを確実に防止することができる。 This makes it possible to reliably prevent the leakage of such liquid medicine from the insertion hole be opposite the opening of the tube is formed the insertion hole.

また、前記閉塞部材は、前記挿通孔を備えて前記外筒の接続部に挿脱自在に嵌合する栓部と、該栓部の後端に連設されて前記管体の外周壁に液密に密着する円筒状の管体密着部とを備えることにより、管体と管体密着部との間への薬液等の侵入を防止することができ、外筒の内部における管体及び閉塞部材の外側への薬液等の漏れを防止することができる。 Further, the closure member includes a plug portion that fits in detachably to the connecting portion of the outer cylinder provided with the insertion hole, the liquid in the outer peripheral wall of the tubular body is provided continuously to the rear end of said closure portion by providing a cylindrical tube contact portion for closely contact, it is possible to prevent intrusion of liquid medicine or the like into between the tube body and the tube contact section, the tubular body and closing member in the interior of the outer cylinder it is possible to prevent the leakage of the drug solution or the like to the outside.
更に、前記管体密着部の外周に、該管体密着部を前記管体に圧接する環状の圧接部材を設けたことにより前記肉厚部と管体との密着度を適度に増加させることができ、管体と管体密着部との間への薬液等の侵入を確実に防止することができる。 Further, the outer periphery of the tubular body contact portion, can appropriately increase the adhesiveness between the tube the thick portion by providing an annular pressing member for pressing the tube body contact portion on the pipe body can, the penetration of liquid medicine or the like into between the tube body and the tube contact portion can be reliably prevented.

本発明における締め付け手段としては、前記外筒の接続部の内壁全周に、前記閉塞部材が該接続部を閉塞したとき閉塞部材の外周に圧接する凸部を設けて、該凸部を締め付け手段とすることができる。 The clamping means of the present invention, the entire circumference the inner wall of the connecting portion of the outer cylinder, the closure member is provided with a protrusion for pressing the outer periphery of the closure member when closed the connection portion, means tighten the convex portion it can be.

このとき、前記管体密着部は、複数の環状の肉厚部と複数の環状の肉薄部とが軸線方向に交互に形成されていることが好ましい。 In this case, the pipe body contact portion is preferably thick portions of the plurality of annular and a plurality of annular thin portion are alternately formed in the axial direction. これにより、該管体密着部は、肉厚部を管体の外周壁に液密に密着させて外筒の内部における管体及び閉塞部材の外側への薬液等の漏れを防止することができるだけでなく、管体密着部と管体との当接面積を少なくして摺動時の抵抗を比較的小となるので管体に沿った閉塞部材の移動を円滑に行なうことができる。 Thus, the tube body contact portion, can only be in close contact with the liquid-tight wall thickness portion on the outer peripheral wall of the tubular body to prevent leakage of liquid medicine or the like to the outside of the tube and the closure member inside the outer tube not, it is possible to perform the movement of the closure member along the tube smoothly since relatively a small resistance during sliding by reducing the contact area with the pipe contact portion and the tube.

また、本発明における前記付勢手段の一態様としては、前記外筒内部において該外筒の底部と前記閉塞部材との間にコイルスプリングを設け、該コイルスプリングを前記付勢手段とすることが挙げられる。 As one form of the biasing means in the present invention, a coil spring provided between the closure member and the bottom portion of the outer cylinder inside the outer cylinder, the coil spring be said biasing means and the like. 付勢手段としてコイルスプリングを採用することにより、管体の外周にコイルスプリングを位置させて該コイルスプリングを前記外筒内に収納するだけで十分な付勢力を得ることができる。 By employing a coil spring as the urging means, it can be to position the coil spring on the outer circumference of the tube to obtain an urging force just enough to house the coil spring to the outer tube.

また、本発明の継ぎ手装置の第2の態様は、筒状の被接続物を挿入して接続可能に開口する接続部を先端に備える有底円筒状の外筒と、該外筒の軸心に沿って延設されて後端が外筒の底部外方に連通し、先端が前記接続部から所定距離を存して該外筒内部に位置すると共に該接続部に向って軸線方向に開口する中空の管体と、前記外筒にその軸線方向に進退自在に収納されて前進位置において該外筒及び前記管体を閉塞する弾性材料による閉塞部材と、該閉塞部材における前記管体の先端に対向する位置に、該閉塞部材の後退に伴って前記管体が挿通する挿通孔と、該挿通孔を閉塞する方向に閉塞部材の外周から締め付ける締め付け手段と、前記管体が前記挿通孔を貫通したとき、該管体に沿って後退した閉塞部材を前進方向に付勢する付勢 The second aspect of the joint device of the present invention includes: a bottomed cylindrical outer tube having a connecting portion for connectable opened by inserting a tubular connection object to the tip, the outer cylinder axis extends along with the rear end communicates with the bottom outer side of the outer tube, the opening in the axial direction toward the connecting portion with the distal end is located inside the outer cylinder to exist a predetermined distance from said connecting portion a hollow tubular body, the closing member by an elastic material for closing the outer cylinder and the tube body in retractably housed in the forward position in the axial direction of the outer cylinder, the leading end of the tubular body in said closing member at a position opposite to the insertion hole in which the tube body with the retraction of the closure member is inserted, the clamping means is tightened from the outer periphery of the closing member in the direction for closing the insertion hole, said tube body said insertion hole when penetrating, biases for urging the closure member which is retracted along the tube body in the forward direction 段とを備えてなり、該付勢手段は、前記閉塞部材の後端に一体に連設されて前記管体の後端に向って該管体から次第に離間する略円錐筒状に形成されたスカート部であり、該スカート部は、その後端が前記外筒内の底部に非固定状態で当接されていると共に、前記閉塞部材が管体に沿って後退したときに屈曲してその小径側が大径側の内方に収納され、該スカート部の外周面と前記外筒の内周面との間には、該スカート部の小径側が大径側の内方に収納されたときに、当該収納位置におけるスカート部の拡径変形を全周にわたって許容する空隙が設けられ、前記筒状部材は、前記スカート部の復元弾性により付勢力が付与されることを特徴とする。 It and a stage, biasing means, formed in a substantially conical tubular shape which gradually separates from tube body toward the rear end of the tubular body is integrally connected to the rear end of the closure member a skirt portion, the skirt portion, with being contact with a non-fixed state its rear end to the bottom of the said outer tube, the smaller diameter is bent when the closing member is retracted along the tubular body housed inside the large diameter side, between the outer peripheral surface and the inner peripheral surface of the outer cylinder of the skirt portion, when the small-diameter side of the skirt portion is housed in the inside of the large diameter side, the voids to allow the entire circumference is provided with enlarged deformation of the skirt portion in the storage position, the tubular member is characterized in that the biasing force is applied by the restoring elasticity of the skirt portion.

本発明の継ぎ手装置の第2の態様によれば、前記第1の態様と同様の効果が得られ、更に、前記スカート部は閉塞部材に一体に設けられているので、部品点数を少なくして組み立て効率を向上させることができる。 According to a second aspect of the joint device of the present invention, the same advantages as those in the first embodiment can be obtained, furthermore, the skirt portion so provided integrally with the closure member, by reducing the number of parts thereby improving the assembling efficiency.
また、閉塞部材の後退に伴い前記スカート部が圧縮されるとき、該スカート部が屈曲してその小径側が大径側の内方に収納されることによって復元弾性による付勢力を発生することができる。 Further, when the skirt portion with the retraction of the closure member is compressed, it can be the skirt portion for generating a biasing force of restoring elastic by its small diameter side and bent is accommodated in the inside of the large-diameter .

このとき、前記スカート部は、複数の環状の肉厚部と複数の環状の肉薄部とが軸線方向に交互に形成されていることが好ましい。 At this time, the skirt portion is preferably thick portions of the plurality of annular and a plurality of annular thin portion are alternately formed in the axial direction. これによれば、前記スカート部が圧縮されたとき、該スカート部を環状の肉薄部を介して円滑に屈曲させることができるだけでなく該スカート部をその全周にわたって均一に屈曲させることができ、安定した付勢力を発生させることができる。 According to this, when the skirt portion is compressed, the skirt portion can be uniformly bent over its entire periphery the skirt portion not only can be smoothly bent through the thin portion of the annular, it is possible to generate a stable biasing force.

更にこのとき、挿通孔を閉塞する方向に閉塞部材の外周から締め付けるリング部材を前記閉塞部材の外周に装着して、該リング部材を締め付け手段とすることができる。 Moreover this time, it is possible to a ring member to tighten the outer peripheral direction to the closing member for closing the insertion hole and fitted to the outer periphery of the closing member, and means clamping the ring member.

また、本発明の継ぎ手装置の第3の態様は、筒状の被接続物を挿入して接続可能に開口する接続部を先端に備える有底円筒状の外筒と、該外筒の軸心に沿って延設されて後端が外筒の底部外方に連通し、先端が前記接続部から所定距離を存して該外筒内部に位置すると共に該接続部に向って軸線方向に開口する中空の管体と、前記外筒にその軸線方向に進退自在に収納されて前進位置において該外筒及び前記管体を閉塞する弾性材料による閉塞部材と、該閉塞部材における前記管体の先端に対向する位置に、該閉塞部材の後退に伴って前記管体が挿通する挿通孔と、該挿通孔を閉塞する方向に閉塞部材の外周から締め付ける締め付け手段と、前記管体が前記挿通孔を貫通したとき、該管体に沿って後退した閉塞部材を前進方向に付勢する付勢 The third aspect of the joint device of the present invention includes: a bottomed cylindrical outer tube having a connecting portion for connectable opened by inserting a tubular connection object to the tip, the outer cylinder axis extends along with the rear end communicates with the bottom outer side of the outer tube, the opening in the axial direction toward the connecting portion with the distal end is located inside the outer cylinder to exist a predetermined distance from said connecting portion a hollow tubular body, the closing member by an elastic material for closing the outer cylinder and the tube body in retractably housed in the forward position in the axial direction of the outer cylinder, the leading end of the tubular body in said closing member at a position opposite to the insertion hole in which the tube body with the retraction of the closure member is inserted, the clamping means is tightened from the outer periphery of the closing member in the direction for closing the insertion hole, said tube body said insertion hole when penetrating, biases for urging the closure member which is retracted along the tube body in the forward direction 段とを備えてなり、前記閉塞部材は、前記挿通孔を備えて前記外筒の接続部に挿脱自在に嵌合する栓部と、該栓部の後端に連設されて前記管体の外周壁に液密に密着する円筒状の管体密着部とを備えて、該管体密着部の後端と外筒の底部との間に空隙が形成されており、前記付勢手段は、前記管体の外周に設けられて、前記栓部が前記外筒の接続部に嵌合しているときの前記管体密着部の後端位置から外筒の底部に向って次第に拡径するテーパ部材と、前記管体密着部とによって構成され、前記閉塞部材が管体に沿って後退したとき、管体密着部がテーパ部材の大径側に摺動して拡径され、該管体密着部の縮径方向への復元弾性により付勢力を前記閉塞部材に付与することを特徴とする It and a stage, wherein the closure member includes a plug portion that fits in detachably to the connecting portion of the outer cylinder provided with the insertion hole, the tubular body is provided continuously to the rear end of said closure portion and a cylindrical tubular body contact portion in close contact with the liquid-tight to the outer peripheral wall of a space is formed between the bottom of the rear end and the outer tube of the tube body contact portion, the biasing means , provided on the outer periphery of the tubular body, gradually enlarged toward the bottom of the outer tube from the rear end position of the tubular body contact portion when said plug portion is fitted to the connecting portion of the outer cylinder a tapered member is constituted by said tube contact section, when the closure member is retracted along the tube, the tube contact portion is enlarged to slide the large-diameter side of the tapered member, the tube member characterized by imparting a biasing force to the closure member by the restoring elasticity of the diameter direction of the contact portion.

本発明の継ぎ手装置の第2の態様によれば、前記第1及び第2の態様と同様の効果が得られ、更に、前記管体密着部をテーパ部材の大径側に摺動させて該管体密着部の復元弾性による付勢力を発生させることができ、しかも、該管体密着部がテーパ部材に沿って摺動可能な長さを有していればよいので、継ぎ手装置をコンパクトに構成することができる。 According to a second aspect of the joint device of the present invention, the first and the same effect as the second embodiment can be obtained, further, by sliding the tube contact portion to the large diameter side of the tapered member said It can be generated an urging force by restoring the elasticity of the tubular body contact portion, moreover, since the tube body contact portion may have a slidable length along the tapered member, the compact joint device it can be configured.

このとき、前記管体密着部は、複数の環状の肉厚部と複数の環状の肉薄部とが軸線方向に交互に形成されていることが好ましい。 In this case, the pipe body contact portion is preferably thick portions of the plurality of annular and a plurality of annular thin portion are alternately formed in the axial direction. これにより、該管体密着部は、肉厚部を管体の外周壁に液密に密着させて外筒の内部における管体及び閉塞部材の外側への薬液等の漏れを防止することができるだけでなく、管体密着部と管体との当接面積を少なくして摺動時の抵抗を比較的小となるので管体に沿った閉塞部材の移動を円滑に行なうことができる。 Thus, the tube body contact portion, can only be in close contact with the liquid-tight wall thickness portion on the outer peripheral wall of the tubular body to prevent leakage of liquid medicine or the like to the outside of the tube and the closure member inside the outer tube not, it is possible to perform the movement of the closure member along the tube smoothly since relatively a small resistance during sliding by reducing the contact area with the pipe contact portion and the tube.

更にこのとき、挿通孔を閉塞する方向に閉塞部材の外周から締め付けるリング部材を前記閉塞部材の外周に装着して、該リング部材を締め付け手段とすることができる。 Moreover this time, it is possible to a ring member to tighten the outer peripheral direction to the closing member for closing the insertion hole and fitted to the outer periphery of the closing member, and means clamping the ring member.

本発明の実施形態を図面に基づいて説明する。 The embodiments of the present invention will be described with reference to the drawings. 図1は第1の実施形態の継ぎ手装置を示す説明的断面図、図2は図1の継ぎ手装置の接続状態を示す説明的断面図、図3は第1の実施形態に用いる管体の他の例を示す説明的断面図、図4は第2の実施形態の継ぎ手装置を示す説明的断面図、図5は図4の継ぎ手装置の接続状態を示す説明的断面図、図6は第3の実施形態の継ぎ手装置を示す説明的断面図、図7は図6の継ぎ手装置の接続状態を示す説明的断面図、図8は第4の実施形態の継ぎ手装置を示す説明的断面図、図9は図8の継ぎ手装置の接続状態を示す説明的断面図である。 1 is an explanatory sectional view showing a joint device of the first embodiment, the other 2 is an explanatory sectional view showing a connection state of the joint device 1, FIG. 3 is a tube body used in the first embodiment explanatory sectional view showing an example of FIG. 4 is an explanatory sectional view showing a joint device of the second embodiment, FIG. 5 is an explanatory sectional view showing a connection state of the joint device 4, 6 3 explanatory sectional view showing a joint device of the embodiment of FIG. 7 is an explanatory sectional view showing a connection state of the joint device in Fig 6, Fig 8 is an explanatory sectional view showing a joint device of the fourth embodiment, FIG. 9 is an explanatory sectional view showing a connection state of the joint device in Fig.

本発明の第1の実施形態の継ぎ手装置1は、図1に示すように、3方活栓2の一つのポート3に設けられている。 Coupling device 1 of the first embodiment of the present invention, as shown in FIG. 1, it is provided in one of the port 3 of the three-way stopcock 2. 該ポート3には筒状の管体支持部4を介して金属(例えばステンレス)又は硬質合成樹脂(例えばポリアセタール)によって形成された棒状の管体5が挿着されている。 Metal (e.g., stainless steel) or a hard synthetic resin (e.g., polyacetal) rod-shaped tubular body 5 formed by through the cylindrical tube support part 4 is inserted in the port 3. 該管体5はパイプ状に形成され、基端が前記ポート3に連通されている。 The tube member 5 is formed in a pipe shape, the proximal end is in communication with the port 3. 該管体5の先端には、その軸線方向に向って開口する開口部6が形成されている。 The tip of the tube body 5, the opening 6 that is open towards the axial direction is formed.

また、前記管体支持部4の外周には、円筒状の外筒支持部7を介して外筒8が連結支持されている。 Further, the outer periphery of the tubular body supporting portion 4, the outer tube 8 is connected to and supported via the outer cylinder support unit 7. 該外筒8の先端には、図示しないシリンジやチューブの先端に設けられた被接続物であるルアーテーパ部9(図2参照)を挿入して接続する接続部10が形成されている。 The distal end of the outer tube 8, the connecting portion 10 which connects by inserting the luer tapered portion 9 is connection object that is provided at the tip of the syringe or tube (not shown) (see FIG. 2) is formed.

該外筒8の内部には、図1に示すように、ゴム製の閉塞部材11が収納されている。 Inside the outer cylinder 8, as shown in FIG. 1, a rubber closure member 11 is accommodated. 該閉塞部材11は、管体5に沿って進退自在に設けられ、外筒8内部に設けられた付勢手段としてのコイルスプリング12によって、前進方向に付勢されている。 The closure member 11 is movably provided along the tube 5, by the coil spring 12 as an urging means provided inside the outer tube 8 is biased in the forward direction. 該閉塞部材11は、その外周に装着された後述する圧接部材13のフランジ部14が、外筒8の接続部10の内周に突設された規制部15に突き当って抜け止めされている。 The closure member 11, the flange portion 14 of the pressing member 13 described later is mounted on the outer periphery thereof, it is retained abuts against the restricting portion 15 projecting from the inner periphery of the connecting portion 10 of the outer cylinder 8 .

該閉塞部材11は、図1に示すように、管体5の先端側を閉塞する栓部16と、該栓部16の後方に連設されて管体5の外周に密着する円筒状の管体密着部17とによって構成されている。 The closure member 11, as shown in FIG. 1, a plug portion 16 which closes the front end side of the tube 5, a cylindrical tube which is in close contact is provided continuously to the rear of said closure portion 16 to the outer periphery of the tube 5 It is constituted by the body contact portion 17. 該閉塞部材11の栓部16には、管体5が挿通される挿通孔18が形成されている。 The stopper portion 16 of the closure member 11, an insertion hole 18 which tube 5 is inserted is formed. 該挿通孔18は、管体5の挿通により弾発的に開口し該管体5が非挿通時には復元弾性により閉鎖状態となる閉鎖孔である。 The insertion hole 18, the tube member 5 and elastically opened by insertion of the tube 5 at the time of non-insertion a closed hole to be closed by the restoring elasticity. また、管体密着部17は、複数の環状の肉厚部19と複数の環状の肉薄部20とを軸線方向に交互に備えている。 Further, the tube contact section 17 includes alternating with thin portion 20 of the plurality of annular thick portion 19 and a plurality of annular axially.

前記接続部10には本発明の締め付け手段としての環状の凸部21が形成されている。 Annular protrusions 21 as fastening means of the present invention is formed in the connecting portion 10. 該凸部21は前記規制部15を一側面に備えている。 Convex portion 21 is provided with the regulating portion 15 on one side. 閉塞部材11の栓部16は接続部10に嵌合されることで凸部21から押圧を受け、挿通孔18の確実な閉鎖状態を維持する。 The stopper part 16 of the closure member 11 receives the pressing convex portion 21 by being fitted to the connecting portion 10, to maintain a reliable closed state of the insertion hole 18.

前記管体5は、その外径が後端に向かって次第に拡径するテーパ状に形成されている。 The tube 5 has an outer diameter is formed in a tapered shape which gradually increases in diameter toward the rear end. 該管体5の後端部には、鍔状に張り出して外筒支持部7の端縁に当接された鍔部22が形成されている。 The rear end portion of the tube body 5, the flange portion 22 which is in contact with the edge of the outer cylinder support unit 7 protrudes in a flange shape is formed. 該鍔部22の後方には、外筒支持部7と管体支持部4との間に介挿して固定する固定脚部23が一体に連設されている。 Behind the the collar portion 22, the fixed leg 23 to secure by inserting between the outer cylinder support unit 7 and the tube supporting portion 4 is provided integrally. 該鍔部22は、コイルスプリング12の後端に当接するスプリングシートとされ、コイルスプリング12と外筒支持部7との接触による外筒支持部7の損傷を防止する。 The collar portion 22 is abutting against the spring seat to the rear end of the coil spring 12, to prevent damage to the outer cylinder support unit 7 due to contact with the coil spring 12 and the outer cylinder support unit 7. このように構成された管体5は、拡径された後端により曲げ強度が向上され、管体5の折れ曲がり等を確実に防止することができる。 Tube 5 thus configured is bending strength improves the diameter is rear end, it is possible to reliably prevent bending or the like of the tube 5.

また、図1に示すように、前記管体密着部17の外周には、金属製の圧接部材13が装着されている。 Further, as shown in FIG. 1, the outer periphery of the tubular body contact portion 17, the metal pressing member 13 is mounted. 圧接部材13は、管体密着部17の外周全周を締め付けており、管体密着部17を管体5に押し当てて密着させている。 Pressing member 13 is tightened the entire periphery of the tube contact portion 17 is brought into close contact by pressing a tube contact section 17 to the tube 5. 更に、圧接部材13には、栓部16側において鍔状に張り出すフランジ部14が形成されている。 Further, the pressing member 13, a flange portion 14 projecting in a flange shape in the stopper part 16 side is formed. 該フランジ部14は、前記コイルスプリング12のスプリングシートとしてゴム製の閉塞部材11との接触による閉塞部材11の損傷を防止して確実に付勢力を付与し、且つ、前述したように外筒8の接続部10の内周に設けられた規制部15に突き当って閉塞部材11の抜け出しを防止する。 The flange portion 14, reliably biasing force to prevent damage of the closure member 11 due to contact with the rubber closure member 11 to impart a spring seat of the coil spring 12, and the outer tube as described above 8 abuts the the regulating portion 15 provided on the inner periphery of the connecting portion 10 to prevent the escape of the closing member 11. 該圧接部材13によって、管体密着部17と管体5との液密状態が維持され、閉塞部材11の進退移動時の液漏れを確実に防止することができる。 The piezoelectric contact member 13, is maintained liquid-tight state between the tubular body contact portion 17 and the tubular body 5, the liquid leakage during forward and backward movement of the closure member 11 can be reliably prevented.

以上の構成からなる継ぎ手装置1によれば、図2に示すように、前記外筒8の接続部10に図示しないシリンジやチューブの先端に設けられたルアーテーパ部9を挿着したとき、該ルアーテーパ部9に押圧された閉塞部材11が後退して、挿通孔18を貫通した管体5の開口部6が開放され、ルアーテーパ部9と3方活栓2のポート3とが管体5を介して連通する。 According to the joint device 1 having the above configuration, as shown in FIG. 2, when inserting the luer tapered portion 9 provided on the syringe and the tip of the tube (not shown) to the connecting portion 10 of the outer tube 8, the Luer taper closure member 11 which is pressed against the section 9 is retracted, the opening 6 of the tube 5 which passes through the insertion hole 18 is opened, and the port 3 of the luer tapered portion 9 and the 3-way stopcock 2 via the tube 5 communicate with each other.

このとき、ルアーテーパ部9から管体5に向かって薬液が注入されると、閉塞部材11と管体5との間に薬液が侵入しようとするが、該閉塞部材11の管体密着部17が前記圧接部材13により管体5に圧接されていることにより、管体密着部17と管体5との間への薬液の侵入が防止される。 In this case, when the drug solution is injected toward the luer tapered portion 9 in the tube 5, but the chemical liquid tries to penetrate between the closure member 11 and the tube 5, the tube contact portion 17 of the closure member 11 is wherein by being pressed against the tube 5 by pressing member 13, the chemical liquid from entering between the tube body contact portion 17 and the tube 5 is prevented. なお、該管体密着部17は、肉薄部20と肉厚部19とが交互に配列されているので、肉厚部19により管体5の周壁に液密に密着させて管体5と管体密着部17との間への薬液等の侵入を防止することができるだけでなく、肉薄部20により管体密着部17と管体5との当接面積を少なくして摺動時の抵抗を比較的小とすることができ、管体5に沿った閉塞部材11の移動を円滑に行なうことができる。 Incidentally, the tube body contact portion 17, since the thin portion 20 and the thick portion 19 are alternately arranged, and the pipe member 5 is brought into close contact in a liquid-tight manner to the peripheral wall of the tube 5 by the thick portion 19 tube not only it is possible to prevent the penetration of liquid medicine or the like into between the body contact portion 17, the resistance when sliding the small contact area with the pipe contact portion 17 and the tubular body 5 by the thin portion 20 relatively small and it is possible to, the movement of the closing member 11 along the tube 5 can be performed smoothly.

その後、前記外筒8の接続部10からルアーテーパ部9を引き抜いたときには、コイルスプリング12の付勢力によって閉塞部材11が前進し、管体5が挿通孔18から抜けた時点で、該管体5の開口部7が閉塞される。 Thereafter, when the withdrawal of the luer tapered portion 9 from the connecting portion 10 of the outer tube 8, at the time the closing member 11 moves forward by the biasing force of the coil spring 12, tube 5 has passed through the insertion hole 18, the tube body 5 opening 7 is closed in. そして、閉塞部材11の栓部16が接続部10に嵌合されて凸部21から押圧を受けることにより、管体5の先端の開口部7を介して流動する薬液等が前記挿通孔18に突き当たっても、挿通孔18から外方への薬液等の漏れ出しを確実に防止することができる。 Then, by receiving the pressing from the fitting convex portion 21 to the stopper portion 16 connecting portion 10 of the closure member 11, the drug solution is the insertion hole 18 to flow through the opening 7 of the front end of the tube 5 be abutted, it is possible to reliably prevent leakage of liquid medicine or the like to the outside from the insertion hole 18.

なお、第1の実施形態においては、外径が後端に向かって次第に拡径するテーパ状に形成された管体5を採用したが、これに限るものではなく、例えば、図3に示すように、その全長にわたって同径のパイプ状の管体24を採用してもよい。 In the first embodiment employs the tubular body 5 which is formed in a tapered shape whose outer diameter gradually enlarged toward the rear end, the present invention is not limited to this, for example, as shown in FIG. 3 to, may be employed a pipe-shaped tube 24 of the same diameter over its entire length.

次に、本発明の第2の実施形態を説明する。 Next, a second embodiment of the present invention. 本発明の第2の実施形態の継ぎ手装置25は、図4に示すように、前述した第1の実施形態と同様に、3方活栓2の一つのポート3に設けられている。 Joint device 25 of the second embodiment of the present invention, as shown in FIG. 4, is provided on the first like the embodiment, one port 3 of a three-way stopcock 2 described above. なお、前述した第1の実施形態と同様の構成については、図4及び図5において、図1乃至図3と同一の符号を付してその説明を省略する。 Incidentally, omitted for the same configuration as the first embodiment described above, in FIGS. 4 and 5, description thereof will be denoted by the same reference numerals as FIGS.

図4に示すように、外筒8の内部において、前記管体24の先端にはゴム製の閉塞部材26が装着されている。 As shown in FIG. 4, inside the outer cylinder 8, the distal end of the tubular body 24 the closing member 26 made of rubber is attached. 該閉塞部材26は管体24に沿って進退自在に設けられ、外筒8内部に設けられたコイルスプリング12によって、前進方向に付勢されている。 The closure member 26 is movably provided along the tube 24, by a coil spring 12 provided inside the outer tube 8 is biased in the forward direction. 該閉塞部材26はその外周に鍔部27が形成されており、外筒8の接続部10の内周に突設された規制部15により鍔部27が規制されて抜け止めされている。 The closure member 26 has a flange portion 27 is formed on the outer peripheral flange portion 27 is retained is restricted by the restricting portion 15 of the inner peripheral protruding connecting portion 10 of the outer cylinder 8.

該閉塞部材26は、図4に示すように、管体24の先端側を閉塞する栓部28と、該栓部28の後方に連設されて管体24の外周に密着する円筒状の管体密着部29とによって構成されている。 The closure member 26, as shown in FIG. 4, a plug portion 28 which closes the front end side of the tube 24, cylindrical tube in close contact with the outer circumference of the continuously provided has been tube 24 to the rear of said closure portion 28 It is constituted by the body contact portion 29. 該閉塞部材26の栓部28には、管体24が挿通される挿通孔18が形成されている。 The stopper portion 28 of the closure member 26, through holes 18 which tube 24 is inserted is formed. 該挿通孔18は、管体24の挿通により弾発的に開口し該管体24が非挿通時には復元弾性により閉鎖状態となる閉鎖孔である。 The insertion hole 18, resiliently open tube 24 by insertion of the tube 24 at the time of non-insertion a closed hole to be closed by the restoring elasticity.

該栓部28の外周には金属製のリング部材30が嵌着されている。 The outer periphery of said closure portion 28 metal ring member 30 is fitted. 該リング部材30は挿通孔18が閉塞する方向に栓部28を締め付ける本発明の締め付け手段としての締め付け部31と、前記管体密着部29の外周に位置して該管体密着部29を管体24に押し当てる押し当て部32とを備えている。 Tube and clamping portion 31 as fastening means of the present invention the ring member 30 to tighten the stopper portion 28 in a direction through hole 18 is closed, the tube body contact portion 29 located on the outer periphery of the tubular body contact portion 29 and a pressing portion 32 is pressed against the body 24. 該締め付け部31により、管体24の先端の開口部6を介して流動する薬液等が前記挿通孔18に突き当たっても、挿通孔18から外方への薬液等の漏れ出しを確実に防止することができる。 By the clamping portion 31, even if the drug solution or the like flowing through the opening 6 leading end of the tube 24 abuts on the insertion hole 18, reliably prevent leakage of the chemical liquid or the like from the insertion hole 18 outward be able to. また、前記押し当て部32により、管体密着部29と管体24との水密状態が維持され、閉塞部材26の進退移動時の液漏れを確実に防止することができる。 Further, by the pressing portion 32, the watertight condition between the tubular body contact portion 29 and the tube 24 is maintained, it is possible to reliably prevent liquid leakage during forward and backward movement of the closure member 26. 更に、外筒8の接続部10には、その内周側に突出する環状の凸部21が形成されており、栓部28の先端部を押圧して一層確実に挿通孔18を閉塞するようになっている。 Further, the connecting portion 10 of the outer cylinder 8, the inner peripheral side thereof and an annular protrusion 21 that protrudes is formed in, so as to occlude the more reliably insertion hole 18 presses the tip portion of the stopper portion 28 It has become.

そして、図5に示すように、前記外筒8の接続部10に図示しないシリンジやチューブの先端に設けられたルアーテーパ部9を挿着したとき、該ルアーテーパ部9に押圧された閉塞部材26が後退して、挿通孔18を貫通した管体24の開口部6が開放され、ルアーテーパ部9と3方活栓2のポート3とが管体24を介して連通する。 Then, as shown in FIG. 5, when inserting the luer tapered portion 9 provided on the syringe and the tip of the tube (not shown) to the connecting portion 10 of the outer tube 8, the closure member 26 is pressed to the luer tapered portion 9 retracted, opening 6 of the tube 24 passing through the insertion hole 18 is opened, and the port 3 of the luer tapered portion 9 and the 3-way stopcock 2 is communicated via a tube 24. このように、管体24が挿通孔18を貫通した時点で管体24の開口部6が確実に開放されるので、閉塞部材26が後退距離を比較的短くすることができ、全体としてコンパクトに構成することができる。 Thus, since the tube 24 opening 6 of the tube 24 when passing through the insertion hole 18 is reliably opened, can the closing member 26 is relatively short retreat distance, a compact as a whole it can be configured. その後、前記外筒8の接続部10からルアーテーパ部9を引き抜いたときには、コイルスプリング12の付勢力によって閉塞部材26が前進し、管体24が挿通孔18から抜けた時点で、該管体24の開口部6が閉塞される。 Thereafter, when the withdrawal of the luer tapered portion 9 from the connecting portion 10 of the outer tube 8, when the closure member 26 by the biasing force of the coil spring 12 moves forward, the tube 24 has passed through the insertion hole 18, the tube member 24 opening 6 is closed in. このように、閉塞部材26の前進距離が比較的短く迅速に管体24の開口部6が閉塞されるので、ルアーテーパ部9の抜き取り時の液漏れ等を極めて少なくすることができる。 Thus, the advance distance of the closing member 26 is the opening 6 of the relatively short rapid tube 24 is closed, it is possible to significantly reduce the leakage or the like during removal of luer tapered portion 9.

次に、本発明の第3の実施形態を説明する。 Next, a third embodiment of the present invention. 図6及び図7に示すように、第3の実施形態の継ぎ手装置33は、前述した第1の実施形態と同様に、3方活栓2の一つのポート3に設けられている。 As shown in FIGS. 6 and 7, the joint device 33 of the third embodiment is provided in a first similar to the embodiment, one port 3 of a three-way stopcock 2 described above. また、前述した第1の実施形態と同様の構成については、図6及び図7において、図1乃至図3と同一の符号を付してその説明を省略する。 Also omitted for the same configuration as that of the first embodiment described above, 6 and 7, a description thereof will be denoted by the same reference numerals as FIGS.

本発明の第3の実施形態においては、図6及び図7に示すように、閉塞部材34にスカート部35が連設されている。 In the third embodiment of the present invention, as shown in FIGS. 6 and 7, the skirt portion 35 is provided continuously to the closing member 34. 即ち、閉塞部材34は、管体24の先端側を閉塞する栓部36と、該栓部36の後方に連設されて管体24の外周に密着する円筒状の管体密着部37とを備えているが、更に、該管体密着部37の後端に管体24の後端方向に延びるスカート部35が設けられている。 That is, the closing member 34 includes a plug portion 36 which closes the front end side of the tube 24, and a cylindrical tubular body contact portion 37 for contact is provided continuously to the rear of said closure portion 36 to the outer periphery of the tube 24 Although provided, further, the skirt portion 35 to the rear end of the tube body contact portion 37 extends toward the rear end of the tube 24 is provided. 該スカート部35は後述するように栓部36と管体密着部37とが管体24に沿って後退したときに圧縮されて復元弾性による付勢力を栓部36に付与する。 The skirt portion 35 to impart a biasing force by the restoration elasticity is compressed when the plug portion 36 and the pipe contact portion 37 as described below is retracted along the tube 24 to the plug part 36.

該栓部36の外周にはゴム製のリング部材38が嵌着されている。 The outer periphery of said closure portion 36 made of rubber ring member 38 is fitted. 該リング部材38は本発明の締め付け手段であり挿通孔18が閉塞する方向に栓部36を締め付ける。 The ring member 38 is inserted through hole 18 is a fastening means of the present invention clamps the plug portion 36 in the direction of closing. 該リング部材38の締め付けにより、管体24の先端の開口部6を介して流動する薬液等が前記挿通孔18に突き当たっても、該挿通孔18から外方への薬液等の漏れ出しを確実に防止することができる。 Tightening of the ring member 38, even if the drug solution or the like flowing through the opening 6 of the distal end of the tube 24 abuts on the insertion hole 18, ensuring leakage of liquid medicine or the like to the outside from the insertion hole 18 it is possible to prevent the.

前記スカート部35は、図6に示すように、管体24の後端に向って該管体24から次第に離間する略円錐筒状に形成されている。 It said skirt portion 35, as shown in FIG. 6, is formed in a substantially conical tubular shape which gradually separates from tube body 24 toward the rear end of the tube 24. また、該スカート部35は、複数の環状の肉薄部39と複数の環状の肉厚部40とが交互に配設された形状に形成されいる。 Also, the skirt portion 35 includes a plurality of annular thin portion 39 and a plurality of annular thick portion 40 is formed in a shape alternately disposed. 各肉薄部39を設けることによって、スカート部35は屈曲可能となっている。 By providing the respective thin portions 39, the skirt portion 35 has a bendable.

そして、図7に示すように、前記外筒8の接続部10に図示しないシリンジやチューブの先端に設けられたルアーテーパ部9を挿着したとき、該ルアーテーパ部9に押圧された栓部36と管体密着部37とが後退して、挿通孔18を貫通した管体24の開口部6が開放され、ルアーテーパ部9と3方活栓2のポート3とが管体24を介して連通する。 Then, as shown in FIG. 7, when inserting the luer tapered portion 9 provided on the syringe and the tip of the tube (not shown) to the connecting portion 10 of the outer cylinder 8, the stopper portion 36 which is pressed into the luer tapered portion 9 retracted and the tube contact portion 37, the opening 6 of the tube 24 passing through the insertion hole 18 is opened, and the port 3 of the luer tapered portion 9 and the 3-way stopcock 2 is communicated via a tube 24. 更にこのとき、スカート部35が何れかの肉薄部39を介して屈曲してその小径側が大径側の内方に収納され、該スカート部35の復元弾性による付勢力が栓部36と管体密着部37とに付与される。 Moreover this time, the small diameter side is accommodated in the inside of the large-diameter skirt portion 35 bent through any thin portion 39, the tube and the plug portion 36 urging force by restoring the elasticity of the skirt portion 35 It is applied to the contact portion 37. その後、前記外筒8の挿着部10からルアーテーパ部9を引き抜いたときには、屈曲状態のスカート部25の付勢力によって閉塞部23と密着部24とが前進し、管体5がスリット17から抜けた時点で、閉塞部23がゴム製であることによる復元弾性とゴム製の前記リング部材26の弾発的な締め付け力とによりスリット17が閉じて該管体5の開口部6が迅速且つ確実に閉塞される。 Thereafter, when the withdrawal of the luer tapered portion 9 from the insertion portion 10 of the outer tube 8 has a closing portion 23 and the contact portion 24 moves forward by the biasing force of the skirt portion 25 of flexion, the tube 5 is missing from the slit 17 Once the restoring elasticity and rubber of the ring member 26 resiliently clamping force and by the slit 17 is the tube body 5 opening 6 quickly and reliably of closed by the closing portion 23 is made of rubber It is closed in.

このように、コイルスプリング12(図1参照)に替えて前記スカート部35を設けることによって、コイルスプリング12と同様の付勢力を発生させることができ、しかも、スカート部35が閉塞部材34に一体に設けられていることにより、部品点数を少なくして組み立て効率を向上させることができる。 Thus, integrated by providing the skirt portion 35 in place of the coil spring 12 (see FIG. 1), can generate the same biasing force between the coil spring 12, moreover, the skirt portion 35 to the closure member 34 by provided, it is possible to improve the assembling efficiency by reducing the number of parts. 更に、スカート部35が屈曲して圧縮時の全長を比較的短くすることができるので、外筒8内部における該スカート部35の収容スペースを小とすることができ、継ぎ手装置33をコンパクトに構成することができる。 Furthermore, it is possible to skirt 35 is relatively short total length when compressed by bending, an accommodation space of the skirt portion 35 inside the outer cylinder 8 can be small, constituting a joint device 33 compact can do.

次に、本発明の第4の実施形態を説明する。 Next, a fourth embodiment of the present invention. 図8及び図9に示すように、第4の実施形態の継ぎ手装置41は、前述した第1の実施形態や第2の実施形態と同様に、3方活栓2の一つのポート3に設けられている。 As shown in FIGS. 8 and 9, joint device 41 of the fourth embodiment, like the first embodiment and the second embodiment described above, provided in one of the port 3 of the 3-way stopcock 2 ing. また、前述した第1乃至第3の実施形態と同様の構成については、図8及び図9において、図1乃至図7と同一の符号を付してその説明を省略する。 Also omitted for the same configuration as the first to third embodiments described above, 8 and 9, description thereof will be denoted by the same reference numerals as in FIG. 1 to FIG.

本発明の第4の実施形態においては、図8及び図9に示すように、閉塞部材42は、管体24の先端側を閉塞する栓部43と、該栓部43の後方に連設されて管体24の外周に密着する円筒状の密着スカート部44(管体密着部)とを備えている。 In the fourth embodiment of the present invention, as shown in FIGS. 8 and 9, the closure member 42 includes a plug portion 43 which closes the front end side of the tube 24, is provided continuously to the rear of said closure portion 43 and a cylindrical contact skirt portion 44 in close contact with the outer periphery of the tube 24 (tube contact portion) Te.

また、管体24には、その後端に向って次第に拡径するテーパ面45を有するテーパ部材46が外挿されている。 Further, the tube 24, tapered member 46 is fitted with a tapered surface 45 which gradually increases in diameter toward its rear end. 前記密着スカート部44は、管体24の先端部からテーパ部材46のテーパ面45に摺接しつつ後退可能とされている。 The adhesion skirt 44 is adapted to be retracted while in sliding contact with the tapered surface 45 of the tapered member 46 from the distal end of the tube 24. また、該密着スカート部44は、複数の環状の肉薄部47と複数の環状の肉厚部48とが交互に配設された形状に形成されいる。 Moreover, it said seal attachment skirt 44 includes a thin portion 47 of the plurality of annular and a plurality of annular thick portion 48 is formed in a shape alternately disposed. 各肉厚部48は密着スカート部44の内面に環状の凸部を形成するものであり、該密着スカート部44の後退時に各肉厚部48の内周面がテーパ部材46のテーパ面45に摺接されるので、摺動抵抗を小として密着スカート部44を円滑に後退させることができる。 Each thick portion 48 is to form the annular convex portion on the inner surface of the contact skirt portion 44, the inner peripheral surface of the thick portion 48 during retraction of said seal attachment skirt 44 is the tapered surface 45 of the tapered member 46 since the sliding contact, it can be smoothly retracted adhesion skirt portion 44 of the sliding resistance as small.

そして、図9に示すように、前記外筒8の接続部10に図示しないシリンジやチューブの先端に設けられたルアーテーパ部9を挿着したとき、該ルアーテーパ部9に押圧された栓部43が後退して、挿通孔18を貫通した管体24の開口部6が開放され、ルアーテーパ部9と3方活栓2のポート3とが管体24を介して連通する。 Then, as shown in FIG. 9, when inserting the luer tapered portion 9 provided on the syringe and the tip of the tube (not shown) to the connecting portion 10 of the outer tube 8, plug 43 which is pressed into the luer tapered portion 9 retracted, opening 6 of the tube 24 passing through the insertion hole 18 is opened, and the port 3 of the luer tapered portion 9 and the 3-way stopcock 2 is communicated via a tube 24. 更にこのとき、密着スカート部44がテーパ部材46の大径側に摺動して拡径される。 Moreover this time, adhesion skirt 44 is expanded by sliding the large-diameter side of the tapered member 46. これにより、該密着スカート部44においては、その縮径方向への復元弾性が生じ、更にテーパ部材46の小径側に移動しようとする力によって栓部43に付勢力が付与される。 Thus, in the said seal attachment skirt 44, resulting restore elasticity to its diameter direction, the urging force to the stopper portion 43 is applied by force to further move to the small diameter side of the tapered member 46.

その後、前記外筒8の接続部10からルアーテーパ部9を引き抜いたときには、密着スカート部44がその縮径方向の復元力によってテーパ部材46のテーパ面45に沿ってその小径側に摺動し、栓部43を前進させる。 Thereafter, when the withdrawal of the luer tapered portion 9 from the connecting portion 10 of the outer cylinder 8 slides on the small diameter side contact skirt portion 44 along the tapered surface 45 of the tapered member 46 by the restoring force of the reduced diameter direction, to advance the plug portion 43. そして、管体24が挿通孔18から抜けた時点で、栓部43がゴム製であることによる復元弾性とゴム製の前記リング部材38の弾発的な締め付け力とにより挿通孔18が閉じられ該管体24の開口部6が迅速且つ確実に閉塞される。 Then, when the tube 24 has passed through the insertion hole 18, insertion hole 18 is closed stopper portion 43 by the resiliently clamping force of the ring member 38 made of restoring elasticity and rubber by a rubber opening 6 of the tube body 24 is quickly and reliably closed.

このように、コイルスプリング12(図1参照)に替えて前記密着スカート部44を設けることによっても、コイルスプリング12と同様の付勢力を発生させることができる。 Thus, by providing the adhesion skirt portion 44 in place of the coil spring 12 (see FIG. 1), it is possible to generate the same biasing force between the coil spring 12.

本発明の第1の実施形態の継ぎ手装置を示す説明的断面図。 Explanatory sectional view showing a joint device of the first embodiment of the present invention. 図1の継ぎ手装置の接続状態を示す説明的断面図。 Explanatory sectional view showing a connection state of the joint device in Fig. 第1の実施形態に用いる管体の他の例を示す説明的断面図。 Explanatory sectional view showing another example of the tube used in the first embodiment. 本発明の第2の実施形態の継ぎ手装置を示す説明的断面図。 Explanatory sectional view showing a joint device of a second embodiment of the present invention. 図4の継ぎ手装置の接続状態を示す説明的断面図。 Explanatory sectional view showing a connection state of the joint device in Fig. 本発明の第3の実施形態の継ぎ手装置を示す説明的断面図。 Explanatory sectional view showing a joint device of a third embodiment of the present invention. 図6の継ぎ手装置の接続状態を示す説明的断面図。 Explanatory sectional view showing a connection state of the joint device in Fig. 本発明の第4の実施形態の継ぎ手装置を示す説明的断面図。 Explanatory sectional view showing a joint device of a fourth embodiment of the present invention. 図8の継ぎ手装置の接続状態を示す説明的断面図。 Explanatory sectional view showing a connection state of the joint device in Fig.

符号の説明 DESCRIPTION OF SYMBOLS

1,25,33,41…継ぎ手装置、5,24…管体、8…外筒、9…ルアーテーパ部(被接続物)、10…接続部、11,26,34,42…閉塞部材、12…コイルスプリング(付勢手段)、13…圧接部材、16,28,36,43…栓部、17,29,37…管体密着部、18…挿通孔、19,40,48…肉厚部、20,39,47…肉薄部、21…凸部(締め付け手段)、31…締め付け部(締め付け手段)、32…押し当て部(圧接部材)35…スカート部(付勢手段)、38…リング部材(締め付け手段)、46…テーパ部材(テーパ部)、44…密着スカート部(付勢手段・管体密着部)。 1,25,33,41 ... joint device 5 and 24 ... pipe body, 8 ... outer tube, 9 ... luer tapered portion (connection object), 10 ... connecting portion, 11,26,34,42 ... closure member, 12 ... a coil spring (biasing means), 13 ... pressing member, 16,28,36,43 ... stopper portion, 17,29,37 ... tube contact section, 18 ... insertion holes, 19,40,48 ... thick portion , 20,39,47 ... thin portion, 21 ... protruding portion (fastening means), 31 ... fastening section (fastening means) 32 ... pressing portion (pressing member) 35 ... skirt (biasing means), 38 ... ring member (fastening means), 46 ... tapered member (taper portion), 44 ... contact skirt portion (biasing means, the tube contact portion).

Claims (10)

  1. 筒状の被接続物を挿入して接続可能に開口する接続部を先端に備える有底円筒状の外筒と、 And the outer cylinder cylindrical shape of the bottomed cylindrical with the front end of the connection portion for connectable opened by inserting a connection object,
    該外筒の軸心に沿って延設されて後端が外筒の底部外方に連通し、先端が前記接続部から所定距離を存して該外筒内部に位置すると共に該接続部に向って軸線方向に開口する中空の管体と、 To the connecting portion with extends along the axis of the outer cylinder and the rear end communicating with the bottom outer side of the outer tube, the tip is located inside the outer cylinder to exist a predetermined distance from said connecting portion a hollow tubular body which is open axially towards,
    前記外筒にその軸線方向に進退自在に収納されて前進位置において該外筒及び前記管体を閉塞する弾性材料による閉塞部材と、 A closing member by an elastic material for closing the outer cylinder and the tube body in the advanced position are retractably housed in the axial direction of the outer cylinder,
    該閉塞部材における前記管体の先端に対向する位置に、該閉塞部材の後退に伴って前記管体が挿通する挿通孔と、 A position opposing to the tip of the tube body in the closing member, and the insertion hole into which the tube body with the retraction of the closure member is inserted,
    記管体が前記挿通孔を貫通したとき、該管体に沿って後退した閉塞部材を前進方向に付勢する付勢手段とを備えてなり、 When the front Symbol tube penetrates the insertion hole, it includes a biasing means for biasing the closure member which is retracted along the tube body in the forward direction,
    前記閉塞部材は、前記挿通孔を備えて前記外筒の接続部に挿脱自在に嵌合する栓部と、該栓部の後端に連設されて前記管体の外周壁に液密に密着する円筒状の管体密着部とを備え The closure member includes a plug portion that fits in detachably to the connecting portion of the outer cylinder provided with the insertion hole, in a liquid tight manner to the outer peripheral wall of the tubular body is provided continuously to the rear end of said closure portion and a cylindrical tube contact portion for contact,
    前記栓部が前記外筒の接続部に嵌合したとき、前記挿通孔を閉塞する方向に栓部の外周から締め付ける締め付け手段を設け When the plug part is fitted in the connecting portion of the outer cylinder is provided with a clamping means tightening the outer circumference of the plug portion in a direction for closing the insertion hole,
    前記管体密着部の外周に、前記栓部が前記外筒の接続部に嵌合しているとき及び閉塞部材の進退移動時に前記管体密着部を前記管体に圧接して密着させる環状の圧接部材を設けたことを特徴とする継ぎ手装置。 The outer periphery of the tubular body contact portion, the stopper portion is annular to be in close contact in pressure contact with the pipe body contact portion on the pipe body during advance and retreat when and closure member fitted in the connecting portion of the outer cylinder joint apparatus characterized in that a pressure contact member.
  2. 前記締め付け手段は、前記外筒の接続部の内壁全周に突設され、前記閉塞部材が該接続部を閉塞したとき、閉塞部材の外周に圧接する凸部であることを特徴とする請求項1記載の継ぎ手装置。 Claim wherein the clamping means, which protruding from the entire circumference inner wall of the outer cylinder of the connection portion, when the closure member is closed the connection unit, characterized in that it is a convex portion pressed against the outer periphery of the closing member 1 joint device as claimed.
  3. 前記管体密着部は、複数の環状の肉厚部と複数の環状の肉薄部とが軸線方向に交互に形成されていることを特徴とする請求項1又は2記載の継ぎ手装置。 The pipe body contact portion, the plurality of annular thick portion and a plurality of annular thin portion and the joint device according to claim 1 or 2, wherein the formed alternately in the axial direction.
  4. 前記付勢手段は、前記外筒内部において該外筒の底部と前記閉塞部材との間に設けられたコイルスプリングであることを特徴とする請求項1乃至3の何れか1項記載の継ぎ手装置。 Said biasing means coupling device of any one of claims 1 to 3, characterized in that a coil spring provided between the closure member and the bottom portion of the outer cylinder inside the outer cylinder .
  5. 筒状の被接続物を挿入して接続可能に開口する接続部を先端に備える有底円筒状の外筒と、 And the outer cylinder cylindrical shape of the bottomed cylindrical with the front end of the connection portion for connectable opened by inserting a connection object,
    該外筒の軸心に沿って延設されて後端が外筒の底部外方に連通し、先端が前記接続部から所定距離を存して該外筒内部に位置すると共に該接続部に向って軸線方向に開口する中空の管体と、 To the connecting portion with extends along the axis of the outer cylinder and the rear end communicating with the bottom outer side of the outer tube, the tip is located inside the outer cylinder to exist a predetermined distance from said connecting portion a hollow tubular body which is open axially towards,
    前記外筒にその軸線方向に進退自在に収納されて前進位置において該外筒及び前記管体を閉塞する弾性材料による閉塞部材と、 A closing member by an elastic material for closing the outer cylinder and the tube body in the advanced position are retractably housed in the axial direction of the outer cylinder,
    該閉塞部材における前記管体の先端に対向する位置に、該閉塞部材の後退に伴って前記管体が挿通する挿通孔と、 A position opposing to the tip of the tube body in the closing member, and the insertion hole into which the tube body with the retraction of the closure member is inserted,
    該挿通孔を閉塞する方向に閉塞部材の外周から締め付ける締め付け手段と、 And tightening means tightening the outer circumferential direction to the closing member for closing the insertion hole,
    前記管体が前記挿通孔を貫通したとき、該管体に沿って後退した閉塞部材を前進方向に付勢する付勢手段とを備えてなり When the tubular body is passed through the insertion hole, it includes a biasing means for biasing the closure member which is retracted along the tube body in the forward direction,
    該付勢手段は、前記閉塞部材の後端に一体に連設されて前記管体の後端に向って該管体から次第に離間する略円錐筒状に形成されたスカート部であり、 Biasing means is a skirt portion formed in a substantially conical tubular shape which gradually separates from tube body toward the rear end of the tubular body is integrally connected to the rear end of the closure member,
    該スカート部は、その後端が前記外筒内の底部に非固定状態で当接されていると共に、前記閉塞部材が管体に沿って後退したときに屈曲してその小径側が大径側の内方に収納され、 The skirt, with being contact with a non-fixed state its rear end to the bottom of the said outer tube, the smaller diameter is bent when the closing member is retracted along the tubular body of the larger diameter is housed in person,
    該スカート部の外周面と前記外筒の内周面との間には、該スカート部の小径側が大径側の内方に収納されたときに、当該収納位置におけるスカート部の拡径変形を全周にわたって許容する空隙が設けられ Between the inner circumferential surface of the outer cylinder and the outer peripheral surface of the skirt portion, when the small-diameter side of the skirt portion is housed in the inside of the large diameter side, the diameter expansion deformation of the skirt portion in the storage position voids to allow the entire circumference is provided,
    前記筒状部材は、前記スカート部の復元弾性により付勢力が付与されることを特徴とする継ぎ手装置。 It said tubular member, joint and wherein the biasing force is applied by the restoring elasticity of the skirt portion.
  6. 前記スカート部は、複数の環状の肉厚部と複数の環状の肉薄部とが軸線方向に交互に形成されて、何れかの肉薄部により屈曲可能とされていることを特徴とする請求項5記載の継ぎ手装置。 Said skirt portion Claim thick portions of the plurality of annular and a plurality of annular thin portion is formed alternately in the axial direction, characterized in that it is bendable by any of the thin portion 5 joint device according.
  7. 前記締め付け手段は、前記閉塞部材の外周に装着され、挿通孔を閉塞する方向に閉塞部材の外周から締め付けるリング部材であることを特徴とする請求項5又は6記載の継ぎ手装置。 Said clamping means, said closed outer periphery mounted member, the joint device according to claim 5 or 6, characterized in that the ring member to tighten the outer peripheral direction to the closing member for closing the insertion hole.
  8. 筒状の被接続物を挿入して接続可能に開口する接続部を先端に備える有底円筒状の外筒と、 And the outer cylinder cylindrical shape of the bottomed cylindrical with the front end of the connection portion for connectable opened by inserting a connection object,
    該外筒の軸心に沿って延設されて後端が外筒の底部外方に連通し、先端が前記接続部から所定距離を存して該外筒内部に位置すると共に該接続部に向って軸線方向に開口する中空の管体と、 To the connecting portion with extends along the axis of the outer cylinder and the rear end communicating with the bottom outer side of the outer tube, the tip is located inside the outer cylinder to exist a predetermined distance from said connecting portion a hollow tubular body which is open axially towards,
    前記外筒にその軸線方向に進退自在に収納されて前進位置において該外筒及び前記管体を閉塞する弾性材料による閉塞部材と、 A closing member by an elastic material for closing the outer cylinder and the tube body in the advanced position are retractably housed in the axial direction of the outer cylinder,
    該閉塞部材における前記管体の先端に対向する位置に、該閉塞部材の後退に伴って前記管体が挿通する挿通孔と、 A position opposing to the tip of the tube body in the closing member, and the insertion hole into which the tube body with the retraction of the closure member is inserted,
    該挿通孔を閉塞する方向に閉塞部材の外周から締め付ける締め付け手段と、 And tightening means tightening the outer circumferential direction to the closing member for closing the insertion hole,
    前記管体が前記挿通孔を貫通したとき、該管体に沿って後退した閉塞部材を前進方向に付勢する付勢手段とを備えてなり When the tubular body is passed through the insertion hole, it includes a biasing means for biasing the closure member which is retracted along the tube body in the forward direction,
    前記閉塞部材は、前記挿通孔を備えて前記外筒の接続部に挿脱自在に嵌合する栓部と、該栓部の後端に連設されて前記管体の外周壁に液密に密着する円筒状の管体密着部とを備えて、該管体密着部の後端と外筒の底部との間に空隙が形成されており、 The closure member includes a plug portion that fits in detachably to the connecting portion of the outer cylinder provided with the insertion hole, in a liquid tight manner to the outer peripheral wall of the tubular body is provided continuously to the rear end of said closure portion and a cylindrical tubular body contact portion in close contact, a space is formed between the bottom of the rear end and the outer tube of the tube body contact portion,
    前記付勢手段は、前記管体の外周に設けられて、前記栓部が前記外筒の接続部に嵌合しているときの前記管体密着部の後端位置から外筒の底部に向って次第に拡径するテーパ部材と、前記管体密着部とによって構成され、 Wherein the biasing means is provided on the outer periphery of the tubular body, towards the bottom of the outer tube from the rear end position of the tubular body contact portion when said plug portion is fitted to the connecting portion of the outer cylinder a tapered member whose diameter increases gradually Te, is constituted by said tube contact section,
    前記閉塞部材が管体に沿って後退したとき、管体密着部がテーパ部材の大径側に摺動して拡径され、該管体密着部の縮径方向への復元弾性により付勢力を前記閉塞部材に付与することを特徴とする継ぎ手装置。 When the closure member is retracted along the tube, the tube contact portion is enlarged to slide the large-diameter side of the tapered member, a biasing force by the restoring elasticity of the diameter direction of the tube body contact portion joint apparatus characterized by imparting to said closure member.
  9. 前記管体密着部は、複数の環状の肉厚部と複数の環状の肉薄部とが軸線方向に交互に形成されて後退時に肉厚部が前記テーパ部材の外面に接することを特徴とする請求項8記載の継ぎ手装置。 The pipe body contact portion, wherein, characterized in that the thick portion at the time of retraction thick portions of a plurality of annular and a plurality of annular thin portion is formed alternately in the axial direction is in contact with the outer surface of the tapered member joint apparatus of claim 8, wherein.
  10. 前記締め付け手段は、前記閉塞部材の外周に装着され、挿通孔を閉塞する方向に閉塞部材の外周から締め付けるリング部材であることを特徴とする請求項8又は9記載の継ぎ手装置。 Said clamping means, said closed outer periphery mounted member, the joint device according to claim 8, wherein it is a ring member to tighten the outer peripheral direction to the closing member for closing the insertion hole.
JP2003280658A 2002-10-03 2003-07-28 Coupling device Active JP4443162B2 (en)

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JP2006102255A (en) 2004-10-06 2006-04-20 Nippon Sherwood Medical Industries Ltd Connecting structure of infusion line and connector with the connecting structure
JP2006102254A (en) * 2004-10-06 2006-04-20 Nippon Sherwood Medical Industries Ltd Connecting structure of infusion line and connector provided with connecting structure
JP4614451B2 (en) 2005-12-26 2011-01-19 日本シャーウッド株式会社 Medical suturing tool
JP4536698B2 (en) 2006-10-05 2010-09-01 日本シャーウッド株式会社 Medical suturing tool
JP4565576B2 (en) 2007-02-20 2010-10-20 日本シャーウッド株式会社 Auxiliary device for puncture needle
CA2635168A1 (en) * 2007-06-27 2008-12-27 Tyco Healthcare Group Lp Positive displacement fluid lock port
JP5185706B2 (en) 2008-06-24 2013-04-17 日本コヴィディエン株式会社 Auxiliary device for puncture needle
DE102009024575A1 (en) * 2009-04-23 2010-12-23 Fresenius Medical Care Deutschland Gmbh Connection mechanism for use in e.g. peritoneal dialysis device for extracorporeal blood treatment in medical and laboratory technology, has pre-centering device provided for alignment of tubular pieces, which are connected with each other
JP5630288B2 (en) * 2011-01-24 2014-11-26 株式会社ジェイ・エム・エス The male member cover and cover with the male member

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