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JP4276134B2 - Medical device cap having luer taper and medical device - Google Patents
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JP4276134B2 - Medical device cap having luer taper and medical device - Google Patents

Medical device cap having luer taper and medical device Download PDF

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JP4276134B2
JP4276134B2 JP2004169423A JP2004169423A JP4276134B2 JP 4276134 B2 JP4276134 B2 JP 4276134B2 JP 2004169423 A JP2004169423 A JP 2004169423A JP 2004169423 A JP2004169423 A JP 2004169423A JP 4276134 B2 JP4276134 B2 JP 4276134B2
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main body
cap
medical device
mounting
tapered
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JP2005348764A (en
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哲也 大塚
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SB Kawasumi Laboratories Inc
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Description

本発明は、ルアーコネクターないしルアーテーパーを有する医療用具(例えば人工肺、血液フィルター等、これらの構成部品も含む)用のキャップに関する。特に硬質材料により形成されたルアーテーパーを有する医療用具用キャップ(以下、キャップと略記する)と当該キャップを装着した医療用具に関する。   The present invention relates to a cap for a medical device having a luer connector or a luer taper (for example, an artificial lung, a blood filter, etc. including these components). In particular, the present invention relates to a medical device cap (hereinafter abbreviated as a cap) having a luer taper formed of a hard material and a medical device equipped with the cap.

例えば、特許文献1には、一端が閉塞したキャップ本体内に、可撓性を有する可撓性チューブの端部が装着される装着部が、キャップ本体の閉塞部から開口部方向に延設され、上記キャップ本体の内部側壁及び装着部に、キャップ本体の開口部とチューブの中空部とを連通する連通部がそれぞれ形成されており、上記装着部の外径が、キャップ本体の閉塞部側から開口部側に向って小さく形成されていると共に、上記開口部側の装着部に、平坦部、凸部又は突条で構成された抜け止め部が形成されている可撓性チューブのキャップの発明が記載されている。   For example, in Patent Document 1, a mounting portion in which an end portion of a flexible tube having flexibility is mounted in a cap body whose one end is closed extends from the closed portion of the cap body toward the opening. The inner side wall and the mounting portion of the cap main body are each formed with a communication portion that communicates the opening of the cap main body and the hollow portion of the tube, and the outer diameter of the mounting portion is from the closing portion side of the cap main body. Invention of a cap of a flexible tube which is formed small toward the opening side and has a retaining portion formed of a flat portion, a convex portion or a protrusion on the mounting portion on the opening side. Is described.

当該キャップは、装着部が本体の内部空間内に収納され、装着部の略60%程度は、連続した壁面を有する筒体で形成されているが、残りの略40%程度は、不連続の突片で形成されている。
このため可撓性チューブの内径の変動を、弾性を有する突片により吸収できるので、可撓性チューブを装着部に容易に装着できる。しかも、弾性突片に基づく復元力に対応する押圧力が、可撓性チューブの内方から外方へ作用するので、弾性突片の平坦部が可撓性チューブと緊密に面接触し、キャップの脱落が防止することができる。
In the cap, the mounting portion is housed in the internal space of the main body, and approximately 60% of the mounting portion is formed of a cylindrical body having a continuous wall surface, but the remaining approximately 40% is discontinuous. It is formed with a projecting piece.
For this reason, since the fluctuation | variation of the internal diameter of a flexible tube can be absorbed with the protrusion which has elasticity, a flexible tube can be easily mounted | worn to a mounting part. Moreover, since the pressing force corresponding to the restoring force based on the elastic protrusion acts from the inside of the flexible tube to the outside, the flat portion of the elastic protrusion is in close surface contact with the flexible tube, and the cap Can be prevented from falling off.

以上のように当該発明のキャップは、可撓性チューブのキャップとしては、優れているが、例えば、ルアーコネクター等のルアーテーパーを有する硬質部材(プラスチック)からなる医療用具の場合は、気密性、液密性が要求されるため、必ずしも好適とはいえない。
また特許文献2には、本体の内部に装着部を突設した栓体(キャップ)が記載されているが、当該栓体(キャップ)の装着部は、本体の内部空間内に収納され、外表面は、平坦に形成されているので、前記ルアーコネクター等のルアーテーパーを有する医療用具のキャップとしては必ずしも好適とはいえない。
As described above, the cap of the present invention is excellent as a flexible tube cap. For example, in the case of a medical device made of a rigid member (plastic) having a luer taper such as a luer connector, Since liquid tightness is required, it is not necessarily preferable.
Patent Document 2 describes a plug body (cap) having a mounting portion projecting from the inside of the main body. The mounting portion of the plug body (cap) is housed in the internal space of the main body and is externally attached. Since the surface is formed flat, it is not necessarily suitable as a cap of a medical device having a luer taper such as the luer connector.

特許2771291(特許請求の範囲、図1)Patent 2771291 (Claims, FIG. 1) 実公昭55−55735(実用新案登録請求の範囲、第3図)Shoko 55-55735 (Scope of request for registration of utility model, Fig. 3)

解決しようとする問題点は、装着部に不連続の突片を形成したキャップや装着部の外表面を平坦に形成したキャップは、ルアーコネクター等のルアーテーパーを有する医療用具に装着する場合、気密性、液密性が十分でない点である。   The problem to be solved is that a cap formed with discontinuous protrusions on the mounting part or a cap formed with a flat outer surface of the mounting part is airtight when mounted on a medical device having a luer taper such as a luer connector. This is the point that the property and liquid tightness are not sufficient.

[1]本発明は、本体(2)の内部に装着部(4)を突設したキャップ(1)において、
前記本体(2)は、筒状に形成され、被装着部に近い側の第一端部と被装着部から遠い側の第二端部を有し、
前記装着部(4)は、本体(2)の第二端部側壁面から突設され、当該装着部(4)の先端は本体(2)の第一端部側より露出し、
当該装着部(4)の外表面は、本体(2)の第二端部側に平坦部(5)を形成し、
当該平坦部(5)に段部(6)を介して、本体(2)の第一端部側に向けて先細りのテーパー部()を形成したルアーテーパーを有する医療用具用キャップ(1)を提供する。
[2]本発明は、本体(12)の内部に装着部(14)を突設したキャップ(11)において、
前記本体(12)は、筒状に形成され、被装着部に近い側の第一端部と被装着部から遠い側の第二端部を有し、
前記装着部(14)は、本体(12)の第二端部側壁面から突設され、当該装着部(14)の先端は本体(12)の第一端部側より露出し、
前記装着部(14)の外表面は、本体(12)の第二端部側に先細りのテーパー部(15)を形成し、
当該テーパー部(15)に、境界部(17)を介して、本体(12)の第一端部側に向けて、前記テーパー部(15)よりも勾配の緩やかな先細りのテーパー部(16)を形成したルアーテーパーを有する医療用具用キャップ(11)を提供する。
[3]本発明は、被装着部(31)の本体(32)の内壁面に、[1]または[2]に記載の医療用具用キャップ(1、11)の装着部(4、14)を装着した医療用具を提供する。
[1] The present invention relates to a cap (1) in which a mounting portion (4) projects from the inside of a main body (2).
The body (2) is formed in a cylindrical shape, and has a first end on the side close to the mounted portion and a second end on the side far from the mounted portion,
The mounting portion (4) protrudes from the side wall surface of the second end of the main body (2), and the tip of the mounting portion (4) is exposed from the first end side of the main body (2).
The outer surface of the mounting part (4) forms a flat part (5) on the second end side of the main body (2),
A medical device cap (1) having a Luer taper in which a taper portion ( 7 ) tapered toward the first end of the main body (2) is formed on the flat portion (5) via a step portion (6). I will provide a.
[2] The present invention provides a cap (11) in which a mounting portion (14) is protruded inside the main body (12).
The main body (12) is formed in a cylindrical shape, and has a first end on the side close to the mounted portion and a second end on the side far from the mounted portion,
The mounting portion (14) protrudes from the side wall surface of the second end of the main body (12), and the tip of the mounting portion (14) is exposed from the first end side of the main body (12).
The outer surface of the mounting portion (14) forms a tapered portion (15) tapered on the second end side of the main body (12),
The taper portion (16) having a gentler slope than the taper portion (15) toward the first end portion of the main body (12) via the boundary portion ( 17 ). There is provided a medical device cap (11) having a luer taper formed of
[3] The present invention provides the mounting portion (4, 14) of the medical device cap (1, 11) according to [1] or [2] on the inner wall surface of the body (32) of the mounted portion (31). A medical device equipped with is provided.

本発明は、気密性ないし液密性を向上させることができ、またルアーテーパーに対するストレスを小さくすることができる。   The present invention can improve air tightness or liquid tightness, and can reduce stress on the luer taper.

図1、2は本発明のキャップ1、11の一例を示す一部切欠き断面図、図3は本発明のキャップ1、11を装着する被装着部(コネクター)の一例を示す概略図、図4は図3の断面図、図5、6は本発明のキャップ1、11を被装着部(コネクター)に装着したところの断面図である。
本発明のキャップ1、11は、図1、2に例示するように、筒状の本体2、12の内部に、筒状の装着部4、24を突設している。本体2、12は被装着部(コネクター)に近い側の第一端部と被装着部(コネクター)から遠い側の第二端部を有する。第一端部側は開放端に形成され、第二端部側は開放端に形成されている。
図1、2の例示では、本体2、12の内壁面には、突部と溝部からなる螺合部3、13が形成されているが、当該内壁面はテーパーまたはストレートな壁面に形成しても良い。
図1、2の例示では、装着部4、14は、本体2、12の第一端部側は閉塞端に形成し、本体2、12の第二端部側は開放端に形成されているが、第一端部側を開放端に形成し、第二端部側を閉塞端に形成しても良い。また図1、2の例示では、装着部4、14は、内部空間(空洞)を有しているが、当該内部空間(空洞)のない無垢に形成することもできる。
1 and 2 are partially cutaway sectional views showing an example of the caps 1 and 11 of the present invention, and FIG. 3 is a schematic view showing an example of a mounting portion (connector) for mounting the caps 1 and 11 of the present invention. 4 is a cross-sectional view of FIG. 3, and FIGS. 5 and 6 are cross-sectional views of the caps 1 and 11 of the present invention mounted on a mounted portion (connector).
As shown in FIGS. 1 and 2, the caps 1 and 11 of the present invention are provided with cylindrical mounting portions 4 and 24 projecting inside the cylindrical main bodies 2 and 12. The main bodies 2 and 12 have a first end portion on the side close to the mounted portion (connector) and a second end portion on the side far from the mounted portion (connector). The first end portion side is formed at the open end, and the second end portion side is formed at the open end.
In the illustrations of FIGS. 1 and 2, the inner wall surfaces of the main bodies 2 and 12 are formed with screwed portions 3 and 13 including protrusions and grooves, but the inner wall surfaces are formed as tapered or straight wall surfaces. Also good.
In the illustration of FIGS. 1 and 2, the mounting portions 4 and 14 are formed at the closed end on the first end side of the main bodies 2 and 12, and are formed at the open end on the second end side of the main bodies 2 and 12. However, the first end portion side may be formed as an open end and the second end portion side may be formed as a closed end. In the example of FIGS. 1 and 2, the mounting portions 4 and 14 have an internal space (cavity), but may be formed without the internal space (cavity).

装着部4、14は、本体2、12の第二端部壁面から突設され、装着部4、14の先端は本体2、12の第一端部より露出している。
キャップ1において、装着部4の外表面は、本体2の第二端部側に平坦部5を形成し、当該平坦部5に段部6を介して、本体2の第一端部側に向けて先細りのテーパー部を形成している。
キャップ11において、前記装着部14の外表面は、第二端部側に先細りのテーパー部15を形成し、当該テーパー部15に、境界部17を介して、第一端部側に向けて、前記テーパー部15よりも勾配の緩やかな先細りのテーパー部16を形成している。
The mounting portions 4, 14 protrude from the wall surfaces of the second end portions of the main bodies 2, 12, and the tips of the mounting portions 4, 14 are exposed from the first end portions of the main bodies 2, 12.
In the cap 1, the outer surface of the mounting portion 4 forms a flat portion 5 on the second end side of the main body 2, and faces the first end portion of the main body 2 through the step portion 6 on the flat portion 5. A tapered portion 7 is formed.
In the cap 11, the outer surface of the mounting portion 14 forms a tapered portion 15 that is tapered on the second end side, and the tapered portion 15 is directed toward the first end portion side through the boundary portion 17 . A tapered portion 16 having a gentler slope than the tapered portion 15 is formed.

本発明のキャップ1、11は、図3、4に例示する被装着部(コネクター)に装着される。図3、4は被装着部の代表的な一例としてルアーコネクター31を記載している。
図3、4の例示では、ルアーコネクター31は、本体32は、筒状に形成され、キャップ1、11に近い側の第一端部とキャップ1、11に遠い側の第二端部を有する。第一端部側の外周面に、突部と溝部からなる螺合部33(前記キャップ1、11の螺合部3、13と螺合される)が形成されている。当該外周面は、前記キャップ1、11の形状に合わせて、テーパーまたはストレートな壁面に形成しても良い。第二端部側の外周面にチューブ等の装着溝35が形成されている。
本体32内壁面には、第一端部側から略中央部に亘って、勾配の揺るやかなテーパー部36と急なテーパー部37が境界部38を介して形成されている。本体32略中央部の外壁面には、必要に応じて翼部34が形成されている。
The caps 1 and 11 according to the present invention are attached to attached portions (connectors) illustrated in FIGS. 3 and 4 show a luer connector 31 as a typical example of the mounted portion.
3 and 4, the luer connector 31 has a main body 32 formed in a cylindrical shape, and has a first end portion on the side close to the caps 1 and 11 and a second end portion on the side far from the caps 1 and 11. . On the outer peripheral surface on the first end side, a threaded portion 33 (which is threadedly engaged with the threaded portions 3 and 13 of the caps 1 and 11) is formed. The outer peripheral surface may be formed on a tapered or straight wall surface according to the shape of the caps 1 and 11. A mounting groove 35 such as a tube is formed on the outer peripheral surface on the second end side.
On the inner wall surface of the main body 32, a taper portion 36 having a gradual gradient and a steep taper portion 37 are formed via a boundary portion 38 from the first end portion side to the substantially central portion. A wing 34 is formed on the outer wall surface of the substantially central portion of the main body 32 as necessary.

図5と図6は、それぞれ本発明のキャップ1、11を、ルアーコネクター31に装着したところの概略図で、キャップ1では、図5のように装着部4の外表面(平坦部5)が、ルアーコネクター31本体32の内壁面の一部(第一端部側のテーパー部36)を半径方向に押し広げるように装着されるので、気密性ないし液密性を向上させることができ、またルアーテーパーに対するストレスを小さくすることができる。   5 and 6 are schematic views of the caps 1 and 11 of the present invention mounted on the luer connector 31, respectively. In the cap 1, the outer surface (flat portion 5) of the mounting portion 4 as shown in FIG. The luer connector 31 is mounted so as to expand a part of the inner wall surface of the main body 32 (the tapered portion 36 on the first end side) in the radial direction, so that airtightness or liquid tightness can be improved. The stress on the luer taper can be reduced.

またキャップ11では、図6のように装着部14の外表面(テーパー部15)及び(本体12)第二端部壁面が、ルアーコネクター31本体32の内壁面(テーパー部36から第一端部の間)と(本体32)第一端部壁面を半径方向に押し広げるように、装着されるので、気密性ないし液密性を向上させることができ、またルアーテーパーに対するストレスを小さくすることができる。   In the cap 11, as shown in FIG. 6, the outer surface (tapered portion 15) and the second end wall surface of the mounting portion 14 are connected to the inner wall surface (tapered portion 36 to the first end portion) of the luer connector 31 main body 32. (Main body 32) and (main body 32) are mounted so as to expand the wall surface of the first end in the radial direction, so that airtightness or liquid tightness can be improved, and stress on the luer taper can be reduced. it can.

本発明のキャップ1の一部切欠き断面図Partially cutaway sectional view of the cap 1 of the present invention 本発明のキャップ11の一部切欠き断面図Partially cutaway sectional view of the cap 11 of the present invention コネクターの概略図Schematic of connector コネクターの断面図Cross section of connector キャップ1を、ルアーコネクター31に装着したところの概略図Schematic of the cap 1 attached to the luer connector 31 キャップ11を、ルアーコネクター31に装着したところの概略図Schematic of the cap 11 attached to the luer connector 31

符号の説明Explanation of symbols

1、11 キャップ
2、12 本体
3、13 螺合部
4、14 装着部
5 平坦部
6 段部
7 テーパー部
15 テーパー部
16 境界部
17 テーパー部
31 被装着部(コネクター)
32 本体
33 螺合部
34 翼部
35 溝
36 テーパー部
37 テーパー部
38 境界部
DESCRIPTION OF SYMBOLS 1, 11 Cap 2, 12 Main body 3, 13 Screwing part 4, 14 Mounting part 5 Flat part 6 Step part 7 Tapered part 15 Tapered part 16 Boundary part 17 Tapered part 31 Mounted part (connector)
32 Main body 33 Threaded portion 34 Wing portion 35 Groove 36 Tapered portion 37 Tapered portion 38 Boundary portion

Claims (3)

本体(2)の内部に装着部(4)を突設したキャップ(1)において、
前記本体(2)は、筒状に形成され、被装着部に近い側の第一端部と被装着部から遠い側の第二端部を有し、
前記装着部(4)は、本体(2)の第二端部側壁面から突設され、当該装着部(4)の先端は本体(2)の第一端部側より露出し、
当該装着部(4)の外表面は、本体(2)の第二端部側に平坦部(5)を形成し、
当該平坦部(5)に段部(6)を介して、本体(2)の第一端部側に向けて先細りのテーパー部()を形成したことを特徴とするルアーテーパーを有する医療用具用キャップ(1)。
In the cap (1) in which the mounting part (4) protrudes inside the main body (2),
The body (2) is formed in a cylindrical shape, and has a first end on the side close to the mounted portion and a second end on the side far from the mounted portion,
The mounting portion (4) protrudes from the side wall surface of the second end of the main body (2), and the tip of the mounting portion (4) is exposed from the first end side of the main body (2).
The outer surface of the mounting part (4) forms a flat part (5) on the second end side of the main body (2),
A medical device having a luer taper, wherein a tapered portion ( 7 ) tapering toward the first end portion of the main body (2) is formed on the flat portion (5) via the step portion (6). Cap (1).
本体(12)の内部に装着部(14)を突設したキャップ(11)において、
前記本体(12)は、筒状に形成され、被装着部に近い側の第一端部と被装着部から遠い側の第二端部を有し、
前記装着部(14)は、本体(12)の第二端部側壁面から突設され、当該装着部(14)の先端は本体(12)の第一端部側より露出し、
前記装着部(14)の外表面は、本体(12)の第二端部側に先細りのテーパー部(15)を形成し、
当該テーパー部(15)に、境界部(17)を介して、本体(12)の第一端部側に向けて、前記テーパー部(15)よりも勾配の緩やかな先細りのテーパー部(16)を形成した、ことを特徴とするルアーテーパーを有する医療用具用キャップ(11)。
In the cap (11) in which the mounting portion (14) protrudes inside the main body (12),
The main body (12) is formed in a cylindrical shape, and has a first end on the side close to the mounted portion and a second end on the side far from the mounted portion,
The mounting portion (14) protrudes from the side wall surface of the second end of the main body (12), and the tip of the mounting portion (14) is exposed from the first end side of the main body (12).
The outer surface of the mounting portion (14) forms a tapered portion (15) tapered on the second end side of the main body (12),
The taper portion (16) having a gentler slope than the taper portion (15) toward the first end portion of the main body (12) via the boundary portion ( 17 ). A medical device cap (11) having a luer taper, characterized in that is formed.
被装着部(31)の本体(32)の内壁面に、請求項1または請求項2に記載の医療用具用キャップ(1、11)の装着部(4、14)を装着したことを特徴とする医療用具。
The mounting part (4, 14) of the medical device cap (1, 11) according to claim 1 or 2 is mounted on the inner wall surface of the body (32) of the mounted part (31). Medical tools to do.
JP2004169423A 2004-06-08 2004-06-08 Medical device cap having luer taper and medical device Expired - Fee Related JP4276134B2 (en)

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