JP4362036B2 - Connector member for extracorporeal circuit and body fluid circulation treatment device - Google Patents

Connector member for extracorporeal circuit and body fluid circulation treatment device Download PDF

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JP4362036B2
JP4362036B2 JP2003003953A JP2003003953A JP4362036B2 JP 4362036 B2 JP4362036 B2 JP 4362036B2 JP 2003003953 A JP2003003953 A JP 2003003953A JP 2003003953 A JP2003003953 A JP 2003003953A JP 4362036 B2 JP4362036 B2 JP 4362036B2
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connector
peripheral surface
cylindrical body
fluid circulation
rotating member
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JP2004215729A (en
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貞利 大澤
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Kawasumi Laboratories Inc
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Kawasumi Laboratories Inc
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【０００１】
【発明の属する技術分野】
本発明は体外循環回路と血液透析で使用する体液循環処理装置（ダイアライザー、血漿分離装置等）とを接続するコネクターの改良に関し、体外循環回路と体液循環処理装置のコネクター部材に関する。

【０００２】
【従来の技術及び発明が解決しようとする課題】
例えば特許文献１では体外循環回路のチューブにメスコネクターの基端部を接着剤等で接続し、先端部には締め付けリングが遊冠されている。
例えば体液循環処理装置の上面及び下面に形成したオスコネクターは、外周に凹凸の嵌合部と先端が先細りのルアーテーパーが長さ方向に一体に形成されている。前記メスコネクターの先端の締め付けリングは前記凹凸の嵌合部と嵌合して前記メスコネクターが前記ルアーテーパーと係合する。
前記メスコネクターは前記オスコネクター先端のルアーテーパーと部分的に係合するのみであるから、前記締め付けリングと前記凹凸の嵌合が弱いと係合部の締め付けも緩くなることが懸念される。
【０００３】
特許文献２では、メスコネクターは、コア部材の外周にハウジングを形成し、前記ハウジングにはネジ山が形成されている。オスコネクターは内円筒と外円筒より構成され、内円筒の外面にはルアーテーパーが形成され、外円筒の内面にはネジ溝が形成されている。
メスコネクターをオスコネクターに接続するには、ネジ山とネジ溝を合わせ、メスコネクターを回動させるとコア部材は回転することなく内円筒にスライドしながら押し込まれる。
しかしながら前記特許文献２は、体外循環回路と体液循環処理装置との接続に関しては開示されてない。
【０００４】
【特開文献１】
実開昭５３−５３８９９号公報（第２図、第３−４頁）
【０００５】
【特許文献２】
特開平１１−３１３８９６号公報（第３図、［０００８］）
【０００６】
【課題を解決する為の手段】
本発明者は以上の課題を解決する為に、鋭意検討を重ねた結果次の発明に到達した。
［１］本発明は、第一のコネクター（１）と第二のコネクター（２１）とから構成され、
前記第一のコネクター（１）の一端部は、体外循環回路を構成するチューブ（７）に接続され、前記第二のコネクター（２１）の一端部は体液循環処理装置を構成するポート部（２５）の一端部に接続され、
前記第一のコネクター（１）は、回動部材（２）と挿入部材（３）から構成され、
前記回動部材（２）は、円筒体（４）と翼（５）とから構成され、当該円筒体（４）の基端外周に前記翼（５）を形成し、当該円筒体（４）の外周面に螺旋状のネジ山（２ａ）を形成し、当該円筒体（４）の内周面（４ａ）にルアーテーパーを形成し、
前記挿入部材（３）は、筒状の本体部（３ａ）と筒状の挿入部（３ｂ）とから構成され、当該挿入部（３ｂ）の外周面にルアーテーパーを形成し、
前記本体部（３ａ）と前記挿入部（３ｂ）の間に突部（８）を形成し、
前記本体部（３ａ）の基端に接続部（６）を装着し、当該接続部（６）に前記チューブ（７）を接続し、
前記本体部（３ａ）の外周に前記回動部材（２）を装着し、当該回動部材（２）の翼（５）の移動を、前記接続部（６）と前記突部（８）との間内で制限し、
前記第二のコネクター（２１）は、内円筒（２３）と外円筒（２２）とから構成され、当該内円筒（２３）の外周面にルアーテーパーを形成し、
当該外円筒（２２）は内周面にネジ溝（２２ａ）を形成し、
前記挿入部材（３）の挿入部（３ｂ）を前記第二のコネクター（２１）の内円筒（２３）に圧入して、前記回動部材（２）を回動させながら、前記体液循環処理装置側方向に押し進め、
当該回動部材（２）のネジ山（２ａ）を前記第二のコネクター（２１）のネジ溝（２２ａ）に螺合することができるように形成し、
これにより前記円筒体（４）の内周面（４ａ）が、前記挿入部（３ｂ）の外周面に、より強固に密着することができるように形成した、体外循環回路と体液循環処理装置とのコネクター部材を提供する。
［２］本発明は、前記回動部材（２）の円筒体（４）の長さ方向に切り欠き溝（１２ａ）を形成した、［１］に記載の体外循環回路と体液循環処理装置とのコネクター部材を提供する。
［３］本発明は、前記挿入部材（３）の長さ（Ｃ）は、前記回動部材（２）の長さ（Ａ）と前記内円筒（２３）との長さ（Ｂ）を合わせた長さより長く形成した、［１］または［２］に記載の体外循環回路と体液循環処理装置とのコネクター部材を提供する。
［４］本発明は、前記挿入部（３ｂ）外周面のルアーテーパーの勾配（Ｔ１）に対して、前記円筒体（４）の内周面（４ａ）のルアーテーパーの勾配（Ｔ２）を大きく形成した、［１］から［３］のいずれか１項に記載の体外循環回路と体液循環処理装置とのコネクター部材を提供する。
【０００７】
【発明の実施の形態】
図１は体外循環回路のチューブ７に接続した第一のコネクター１（コネクター１）を体液循環処理装置２６の第二のコネクター（オスコネクター）２１に接続する前の略断面図で、図２挿入部材３の挿入部３ｂを第二のコネクター（オスコネクター）２１の内円筒２３に圧入した略断面図で、図３は回動部材２を回動して、ネジ山２ａがネジ溝２２ａに嵌合した略断面図である。
図４は回動部材２の円筒体４の長さ方向に切り欠き溝１２ａを形成した第一のコネクター１（コネクター１）コネクター１の概略図である。
【０００８】
［第一のコネクター１（以下、コネクター１）］
コネクター１は回動部材２と挿入部材３から構成され、前記回動部材２は前記挿入部材３の本体部３ａ外周に配置されている。
【０００９】
［回動部材２］
回動部材２は円筒体４の基端外周に翼５を形成し、前記円筒体４の外周に、螺旋状のネジ山２ａを形成し、該円筒体４の内周面４ａはルアーテーパーに形成され、その勾配Ｔ２は例えば６／１００より大きく形成されている。
また図４のように回動部材２の円筒体４の長さ方向に切り欠き溝１２ａを形成することができる。前記切り欠き溝１２ａは対称に少なくとも二ヶ所または四ヶ所または六ヶ所、形成することができる。
【００１０】
［挿入部材３］
挿入部材３は円筒状の本体部３ａと挿入部３ｂから形成され、前記本体部３ａと挿入部３ｂの間の外周には環状ないしリング状の突部８が形成されている。前記本体部３ａの基端に接続部６を介して体外循環回路のメインチューブ７が接続されている。前記挿入部３ｂの外周面はルアーテーパーに形成され、その勾配Ｔ１は例えば６／１００で形成される。
前記突部８は本体部３ａの外周に配置した回動部材２が挿入部３ｂに進まないようにストッパーの役割を果たしている。
【００１１】
［第二のコネクター２１（以下、オスコネクター２１）］
オスコネクター２１は例えば体液循環処理装置の上面及び下面に液密に装着したポート部２５の中心部に一体に形成されている。
オスコネクター２１は外円筒２２と内円筒２３とが二重同芯円状に形成されている。前記外円筒２２の内周には、前記回動部材２のネジ山２ａと螺合するネジ溝２２ａが螺旋状に形成されている。前記内円筒２３の外周面にはルアーテーパーが形成されている。
【００１２】
本発明のコネクター１とオスコネクター２１の接続方法を図１から図３の順番に従って説明する。
図１、図２より、挿入部材３の挿入部３ｂをオスコネクター２１の内円筒２３の外周に圧入し、前記内円筒２３の先端が挿入部３ａの後端まで挿入する。前記内円筒２３の外周面と挿入部３ｂの内周面が液密に接続（密着）される。
図３より、回動部材２を本体部３ａに沿って前方に進め、翼５を指で摘み回転させる。前記回動部材２のネジ山２ａとオスコネクター２１のネジ溝２２ａが螺旋状に沿って螺合すると同時に、円筒体４の内周面４ａが挿入部３ｂの外周面に密着し、より強固に密着することができる。
【００１３】
前記図４のように切り欠き溝１２ａを形成した回動部材２を配置したコネクター１を形成することができる。前記切り欠き溝１２ａを形成して前記段落番号［００１２］の図３の説明のようにネジ山２ａとネジ溝２２ａを螺合させる。
前記のように螺合すると前記円筒体４が圧縮され、該円筒体４の内周面４ａが挿入部３ｂの外周面に密着することができる。
【００１４】
挿入部材３の長さＣは、回動部材２の長さＡと内円筒２３の長さＢを合わせた長さより、長く形成することができる。挿入部材３の本体部３ａの長さを長くすることにより、前記図２のように挿入部３ｂを内円筒２３に圧入した後、円筒体４の先端と外円筒２２の先端が接触しないようにすることができる。従ってある程度のクリアランスを持たせることでネジ山２ａをネジ溝２２ａに螺合し易くなる。
【００１５】
挿入部３ｂのルアーテーパーの勾配Ｔ１より、円筒体４の内周面４ａのルアーテーパーの勾配Ｔ２を大きく形成することができる。
前記段落番号［００１２］の図３の説明のように円筒体４のネジ山２ａが外円筒２２のネジ溝２２ａに嵌合すると、前記内周面４ａのルアーテーパーの勾配Ｔ２は、前記ルアーテーパーの勾配Ｔ１より大きく形成した分、前記ネジ山２ａとネジ溝２２ａの螺合がきつくなると同時に更にかしめることができ、前記挿入部３ｂの外周面と円筒体４の内周面４ａが強固に密着するので、当該密着部からの液漏れを防止することができる。
【００１６】
【発明の作用効果】
（１）本発明の体外循環回路と体液循環処理装置とのコネクター部材は、第一のコネクター１の挿入部３ｂを第二のコネクター２１の内円筒２３に圧入して、回動部材２を回動させながら、体液循環処理装置側方向に押し進め、回動部材２のネジ山２ａを第二のコネクター２１の外円筒２２に形成されたネジ溝２２ａに螺合することにより、相互に接続された第一のコネクター１の挿入部３ｂと第二のコネクター２１の内円筒２３を、さらに外からに回動部材２の円筒体４、さらに第二のコネクター２１の外円筒２２で締め付けるので、確実に且つ強固に密着することができ液漏れすることなく接続することができる。
（２）回動部材２の円筒体４の外周長さ方向に切り欠き溝１２ａを形成したコネクター１では、前記円筒体４が圧縮され、内周面４ａが挿入部３ｂの外周に密着することで液漏れすることなく確実に接続することができる。
（３）コネクター１の本体部３ａの長さを回動部材２の長さＡと内円筒２３の長さＢを合わせた長さより長く形成することで、外円筒２２のネジ溝２２の先端に円筒体４のネジ山２ａを螺合する切掛けをつかみ易くすることができる。
（４）挿入部材３の外周ルアーテーパーの勾配Ｔ１より、内周面４ａのルアーテーパーの勾配Ｔ２を大きく形成することで、前記挿入部３ｂの外周面と前記円筒体４の内周面４ａを強固に密着するので当該密着部からの液漏れを防止することができる。
【図面の簡単な説明】
【図１】接続前の本発明のコネクター１とオスコネクター２１の略断面図
【図２】挿入部材３の挿入部３ｂを内円筒２３の外周に圧入した時の略断面図
【図３】回動部材２を回動してコネクター１をオスコネクター２１に接続した略断面図
【図４】回動部材２に切り欠き溝１２ａを形成したコネクター１の概略図
【符号の説明】
１ 第一のコネクター（コネクター）
２ 回動部材
２ａ ネジ山
３ 挿入部材
３ａ 本体部
３ｂ 挿入部
４ 円筒体
４ａ 内筒体の内周面
５ 翼
６ 接続部
７ メインチューブ
８ 突部
１２ａ 切り欠き溝
２１ 第二のコネクター（オスコネクター）
２２ 外円筒
２２ａ ネジ溝
２３ 内円筒
２５ ポート部
２６ 体液循環処理装置（ダイアライザー、血漿分離装置等）
Ａ 回動部材２の長さ
Ｂ 内円筒２３の長さ
Ｃ 挿入部材３の長さ
Ｔ１、Ｔ２ 勾配[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in a connector for connecting an extracorporeal circuit and a body fluid circulation processing device (dialyzer, plasma separator, etc.) used in hemodialysis, and relates to an extracorporeal circuit and a connector member of the body fluid circulation processing device .

[0002]
[Prior art and problems to be solved by the invention]
For example, in Patent Document 1, the base end portion of the female connector is connected to the tube of the extracorporeal circuit with an adhesive or the like, and a tightening ring is crowned at the distal end portion.
For example, a male connector formed on the upper surface and lower surface of a body fluid circulation processing device has a fitting portion with an unevenness and a luer taper with a tapered tip formed integrally in the length direction on the outer periphery. The tightening ring at the tip of the female connector is engaged with the concave-convex fitting portion so that the female connector engages with the luer taper.
Since the female connector only partially engages with the luer taper at the tip of the male connector, there is a concern that tightening of the engaging portion may be loosened if the engagement between the tightening ring and the unevenness is weak.
[0003]
In Patent Document 2, a female connector forms a housing on the outer periphery of a core member, and a screw thread is formed in the housing. The male connector includes an inner cylinder and an outer cylinder. A luer taper is formed on the outer surface of the inner cylinder, and a thread groove is formed on the inner surface of the outer cylinder.
In order to connect the female connector to the male connector, when the screw thread and the groove are aligned and the female connector is rotated, the core member is pushed into the inner cylinder without being rotated.
However, Patent Document 2 does not disclose connection between the extracorporeal circuit and the body fluid circulation processing device.
[0004]
[Patent Document 1]
Japanese Utility Model Publication No. 53-53899 (FIG. 2, pages 3-4)
[0005]
[Patent Document 2]
Japanese Patent Laid-Open No. 11-313896 (FIG. 3, [0008])
[0006]
[Means for solving the problems]
In order to solve the above problems, the present inventor has intensively studied to arrive at the next invention.
[1] The present invention comprises a first connector (1) and a second connector (21),
One end of the first connector (1) is connected to a tube (7) constituting an extracorporeal circulation circuit, and one end of the second connector (21) is a port portion (25 constituting a bodily fluid circulation processing device). ) Is connected to one end of
The first connector (1) is composed of a rotating member (2) and an insertion member (3),
The rotating member (2) includes a cylindrical body (4) and a wing (5). The wing (5) is formed on the outer periphery of the base end of the cylindrical body (4), and the cylindrical body (4). A helical thread (2a) is formed on the outer peripheral surface of the cylindrical body, and a luer taper is formed on the inner peripheral surface (4a) of the cylindrical body (4),
The insertion member (3) is composed of a cylindrical main body (3a) and a cylindrical insertion part (3b), and a luer taper is formed on the outer peripheral surface of the insertion part (3b).
A protrusion (8) is formed between the main body (3a) and the insertion part (3b),
Attach the connecting portion (6) to the base end of the main body portion (3a), connect the tube (7) to the connecting portion (6),
The rotating member (2) is mounted on the outer periphery of the main body (3a), and the movement of the wing (5) of the rotating member (2) is performed by the connecting portion (6) and the protrusion (8). Limit within
The second connector (21) includes an inner cylinder (23) and an outer cylinder (22), and a luer taper is formed on the outer peripheral surface of the inner cylinder (23).
The outer cylinder (22) forms a screw groove (22a) on the inner peripheral surface,
The bodily fluid circulation treatment device while press-fitting the insertion portion (3b) of the insertion member (3) into the inner cylinder (23) of the second connector (21) and rotating the rotation member (2). Push it sideways,
Forming the screw thread (2a) of the rotating member (2) so that it can be screwed into the screw groove (22a) of the second connector (21);
Thus, the extracorporeal circuit and the bodily fluid circulation processing device formed so that the inner peripheral surface (4a) of the cylindrical body (4) can be more firmly adhered to the outer peripheral surface of the insertion portion (3b). A connector member is provided.
[2] The present invention, the rotary member to form a cylindrical body (4) of the notched groove in the length direction of (2) (12a), and extracorporeal circulation circuit and the fluid circulation apparatus according to [1] A connector member is provided.
[ 3 ] In the present invention, the length (C) of the insertion member (3) matches the length (A) of the rotating member (2) and the length (B) of the inner cylinder (23). and were longer than the formed length, providing a connector member of the extracorporeal circuit and the fluid circulation apparatus according to [1] or [2].
[ 4 ] In the present invention, the Luer taper gradient (T2) of the inner peripheral surface (4a) of the cylindrical body (4) is larger than the Luer taper gradient (T1) of the outer peripheral surface of the insertion portion (3b). the formed to provide a connector member of the extracorporeal circuit and the fluid circulation apparatus according to any one of [1] to [3].
[0007]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a schematic cross-sectional view before connecting the first connector 1 ( connector 1 ) connected to the tube 7 of the extracorporeal circuit to the second connector ( male connector ) 21 of the bodily fluid circulation processing device 26. FIG. 3 is a schematic cross-sectional view in which the insertion portion 3b of the member 3 is press-fitted into the inner cylinder 23 of the second connector ( male connector ) 21. FIG. 3 rotates the rotating member 2, and the thread 2a is fitted into the screw groove 22a. It is the combined schematic sectional drawing.
FIG. 4 is a schematic view of the first connector 1 ( connector 1 ) connector 1 in which a notch groove 12 a is formed in the length direction of the cylindrical body 4 of the rotating member 2.
[0008]
[ First connector 1 (hereinafter referred to as connector 1) ]
The connector 1 includes a rotation member 2 and an insertion member 3, and the rotation member 2 is disposed on the outer periphery of the main body 3 a of the insertion member 3.
[0009]
[Rotating member 2]
The rotating member 2 has a wing 5 formed on the outer periphery of the base end of the cylindrical body 4, and a helical thread 2a is formed on the outer periphery of the cylindrical body 4. The inner peripheral surface 4a of the cylindrical body 4 has a luer taper. The gradient T2 is formed to be larger than 6/100, for example.
Also it is possible to form a cutout groove 12a in the longitudinal direction of the cylindrical body 4 of the rotating member 2 as shown in FIG. The notch grooves 12a can be formed symmetrically at least two, four or six.
[0010]
[Insert member 3]
The insertion member 3 is formed of a cylindrical main body portion 3a and an insertion portion 3b, and an annular or ring-shaped protrusion 8 is formed on the outer periphery between the main body portion 3a and the insertion portion 3b. The main tube 7 of the extracorporeal circuit is connected to the base end of the main body 3a through the connecting portion 6. The outer peripheral surface of the insertion portion 3b is formed as a luer taper, and its gradient T1 is formed at 6/100, for example.
The protrusion 8 serves as a stopper so that the rotating member 2 disposed on the outer periphery of the main body 3a does not advance to the insertion portion 3b.
[0011]
[ Second connector 21 (hereinafter, male connector 21) ]
For example, the male connector 21 is integrally formed at the center of the port portion 25 that is liquid-tightly attached to the upper and lower surfaces of the bodily fluid circulation processing apparatus.
In the male connector 21, an outer cylinder 22 and an inner cylinder 23 are formed in a double concentric circle shape. The inner periphery of the outer cylinder 22, the screw groove 22a of the screw thread 2a and screwed of the rotating member 2 is formed in a spiral shape. A luer taper is formed on the outer peripheral surface of the inner cylinder 23.
[0012]
A method for connecting the connector 1 and the male connector 21 according to the present invention will be described in the order shown in FIGS.
1 and 2, the insertion portion 3b of the insertion member 3 is press-fitted into the outer periphery of the inner cylinder 23 of the male connector 21, and the tip of the inner cylinder 23 is inserted to the rear end of the insertion portion 3a. The outer peripheral surface of the inner cylinder 23 and the inner peripheral surface of the insertion portion 3b are connected (tightly) in a liquid-tight manner.
From FIG. 3, the rotating member 2 is advanced forward along the main body 3a, and the wing 5 is picked and rotated by a finger. At the same time as the screw thread 2a of the rotating member 2 and the screw groove 22a of the male connector 21 are screwed together along the spiral shape, the inner peripheral surface 4a of the cylindrical body 4 is in close contact with the outer peripheral surface of the insertion portion 3b. It can adhere .
[0013]
As shown in FIG. 4, the connector 1 in which the rotating member 2 having the notch groove 12a is disposed can be formed. The notch 12a is formed, and the screw thread 2a and the screw groove 22a are screwed together as described in FIG. 3 of the paragraph number [0012].
Wherein a screwed cylinder 4 is compressed as the inner circumferential surface 4a of the cylindrical body 4 can be brought into close contact with the outer peripheral surface of the insertion portion 3b.
[0014]
The length C of the insertion member 3 can be formed longer than the total length of the length A of the rotating member 2 and the length B of the inner cylinder 23. By increasing the length of the main body portion 3a of the insertion member 3, the insertion portion 3b is press-fitted into the inner cylinder 23 as shown in FIG. can do. Therefore, by providing a certain amount of clearance, the screw thread 2a can be easily screwed into the screw groove 22a.
[0015]
The Luer taper gradient T2 of the inner peripheral surface 4a of the cylindrical body 4 can be formed larger than the Luer taper gradient T1 of the insertion portion 3b.
When the thread 2a of the cylindrical body 4 is fitted into the thread groove 22a of the outer cylinder 22 as illustrated in FIG. 3 of the paragraph [0012], the slope T2 of the luer taper of the inner peripheral surface 4a is the luer taper. larger the amount than the slope T1 of the screw screwed pile 2a and the screw groove 22a is tight when the can occupy more or simultaneously, the inner circumferential surface 4a is firmly of the insertion portion 3b outer peripheral surface and the cylindrical body 4 of the Since it adheres, the liquid leakage from the said adhesion part can be prevented.
[0016]
[Effects of the invention]
( 1 ) The connector member of the extracorporeal circuit and the bodily fluid circulation processing device of the present invention presses the insertion portion 3b of the first connector 1 into the inner cylinder 23 of the second connector 21 to rotate the rotating member 2. While being moved, the body fluid circulation processing device is pushed toward the side, and the thread 2a of the rotating member 2 is screwed into the thread groove 22a formed in the outer cylinder 22 of the second connector 21, thereby being connected to each other. The insertion portion 3b of the first connector 1 and the inner cylinder 23 of the second connector 21 are further tightened from the outside by the cylindrical body 4 of the rotating member 2 and the outer cylinder 22 of the second connector 21. And it can adhere firmly and can be connected without liquid leakage.
( 2 ) In the connector 1 in which the cutout groove 12a is formed in the outer peripheral length direction of the cylindrical body 4 of the rotating member 2, the cylindrical body 4 is compressed and the inner peripheral surface 4a is in close contact with the outer periphery of the insertion portion 3b. It can be connected securely without leaking.
( 3 ) By forming the length of the main body 3 a of the connector 1 to be longer than the total length of the length A of the rotating member 2 and the length B of the inner cylinder 23, the tip of the screw groove 22 of the outer cylinder 22 is formed. the threads 2a of the cylindrical body 4 can be easily grasp the commencement of screwing.
( 4 ) The outer peripheral surface of the insertion portion 3b and the inner peripheral surface 4a of the cylindrical body 4 are formed by forming the Luer taper gradient T2 of the inner peripheral surface 4a larger than the gradient T1 of the outer peripheral luer taper of the insertion member 3. Since it adheres firmly, the liquid leakage from the said adhesion part can be prevented.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view of the connector 1 and male connector 21 of the present invention before connection. FIG. 2 is a schematic cross-sectional view when the insertion portion 3b of the insertion member 3 is press-fitted into the outer periphery of the inner cylinder 23. FIG. 4 is a schematic cross-sectional view of the connector 1 connected to the male connector 21 by rotating the moving member 2. FIG. 4 is a schematic diagram of the connector 1 in which the notched groove 12a is formed in the rotating member 2.
1 First connector ( connector )
2 Rotating member 2a Thread 3 Insert member 3a Main body portion 3b Insertion portion 4 Cylindrical body 4a Inner peripheral surface 5 of inner tube body 6 Wing 6 Connection portion 7 Main tube 8 Protruding portion 12a Notch groove 21 Second connector ( male connector )
22 Outer cylinder 22a Thread groove 23 Inner cylinder 25 Port 26 Body fluid circulation processing device (dialyzer, plasma separator, etc.)
A Length of rotating member 2 Length of inner cylinder 23 C Length of insertion member 3 T1, T2 Gradient

Claims (4)

第一のコネクター（１）と第二のコネクター（２１）とから構成され、
前記第一のコネクター（１）の一端部は、体外循環回路を構成するチューブ（７）に接続され、前記第二のコネクター（２１）の一端部は体液循環処理装置を構成するポート部（２５）の一端部に接続され、
前記第一のコネクター（１）は、回動部材（２）と挿入部材（３）から構成され、
前記回動部材（２）は、円筒体（４）と翼（５）とから構成され、当該円筒体（４）の基端外周に前記翼（５）を形成し、当該円筒体（４）の外周面に螺旋状のネジ山（２ａ）を形成し、当該円筒体（４）の内周面（４ａ）にルアーテーパーを形成し、
前記挿入部材（３）は、筒状の本体部（３ａ）と筒状の挿入部（３ｂ）とから構成され、当該挿入部（３ｂ）の外周面にルアーテーパーを形成し、
前記本体部（３ａ）と前記挿入部（３ｂ）の間に突部（８）を形成し、
前記本体部（３ａ）の基端に接続部（６）を装着し、当該接続部（６）に前記チューブ（７）を接続し、
前記本体部（３ａ）の外周に前記回動部材（２）を装着し、当該回動部材（２）の翼（５）の移動を、前記接続部（６）と前記突部（８）との間内で制限し、
前記第二のコネクター（２１）は、内円筒（２３）と外円筒（２２）とから構成され、当該内円筒（２３）の外周面にルアーテーパーを形成し、
当該外円筒（２２）は内周面にネジ溝（２２ａ）を形成し、
前記挿入部材（３）の挿入部（３ｂ）を前記第二のコネクター（２１）の内円筒（２３）に圧入して、前記回動部材（２）を回動させながら、前記体液循環処理装置側方向に押し進め、
当該回動部材（２）のネジ山（２ａ）を前記第二のコネクター（２１）のネジ溝（２２ａ）に螺合することができるように形成し、
これにより前記円筒体（４）の内周面（４ａ）が、前記挿入部（３ｂ）の外周面に、より強固に密着することができるように形成した、ことを特徴とする体外循環回路と体液循環処理装置とのコネクター部材。 Consists of a first connector (1) and a second connector (21),
One end of the first connector (1) is connected to a tube (7) constituting an extracorporeal circulation circuit, and one end of the second connector (21) is a port portion (25 constituting a bodily fluid circulation processing device). ) Is connected to one end of
The first connector (1) is composed of a rotating member (2) and an insertion member (3),
The rotating member (2) includes a cylindrical body (4) and a wing (5). The wing (5) is formed on the outer periphery of the base end of the cylindrical body (4), and the cylindrical body (4). A helical thread (2a) is formed on the outer peripheral surface of the cylindrical body, and a luer taper is formed on the inner peripheral surface (4a) of the cylindrical body (4),
The insertion member (3) is composed of a cylindrical main body (3a) and a cylindrical insertion part (3b), and a luer taper is formed on the outer peripheral surface of the insertion part (3b).
A protrusion (8) is formed between the main body (3a) and the insertion part (3b),
Attach the connecting portion (6) to the base end of the main body portion (3a), connect the tube (7) to the connecting portion (6),
The rotating member (2) is mounted on the outer periphery of the main body (3a), and the movement of the wing (5) of the rotating member (2) is performed by the connecting portion (6) and the protrusion (8). Limit within
The second connector (21) includes an inner cylinder (23) and an outer cylinder (22), and a luer taper is formed on the outer peripheral surface of the inner cylinder (23).
The outer cylinder (22) forms a screw groove (22a) on the inner peripheral surface,
The bodily fluid circulation treatment device while press-fitting the insertion portion (3b) of the insertion member (3) into the inner cylinder (23) of the second connector (21) and rotating the rotation member (2). Push it sideways,
Forming the screw thread (2a) of the rotating member (2) so that it can be screwed into the screw groove (22a) of the second connector (21);
Thus , the extracorporeal circuit having the inner peripheral surface (4a) of the cylindrical body (4) formed so as to be more firmly attached to the outer peripheral surface of the insertion portion (3b) ; Connector member with body fluid circulation processing device . 前記回動部材（２）の円筒体（４）の長さ方向に切り欠き溝（１２ａ）を形成した、ことを特徴とする請求項１に記載の体外循環回路と体液循環処理装置とのコネクター部材。 Connector and the extracorporeal circuit and the fluid circulation apparatus according to claim 1, wherein the rotating member to form a notch groove in the longitudinal direction of the cylindrical body (2) (4) (12a ), characterized in that Element. 前記挿入部材（３）の長さ（Ｃ）は、前記回動部材（２）の長さ（Ａ）と前記内円筒（２３）との長さ（Ｂ）を合わせた長さより長く形成した、ことを特徴とする請求項１または請求項２に記載の体外循環回路と体液循環処理装置とのコネクター部材。The length (C) of the insertion member (3) is formed to be longer than the total length of the rotation member (2) (A) and the length (B) of the inner cylinder (23) . The connector member between the extracorporeal circuit and the bodily fluid circulation processing device according to claim 1 or 2 . 前記挿入部（３ｂ）外周面のルアーテーパーの勾配（Ｔ１）に対して、前記円筒体（４）の内周面（４ａ）のルアーテーパーの勾配（Ｔ２）を大きく形成した、ことを特徴とする請求項１から請求項３のいずれか１の請求項に記載の体外循環回路と体液循環処理装置とのコネクター部材。Wherein the insertion portion (3b) slope of luer taper of the outer circumferential surface (T1), and larger gradient of the luer taper to (T2) of the inner peripheral surface of said cylindrical body (4) (4a), that the said The connector member of the extracorporeal circuit and the bodily fluid circulation processing device according to any one of claims 1 to 3.
JP2003003953A 2003-01-10 2003-01-10 Connector member for extracorporeal circuit and body fluid circulation treatment device Expired - Fee Related JP4362036B2 (en)

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