JPH0725958Y2 - Connection member - Google Patents
Connection memberInfo
- Publication number
- JPH0725958Y2 JPH0725958Y2 JP1988123396U JP12339688U JPH0725958Y2 JP H0725958 Y2 JPH0725958 Y2 JP H0725958Y2 JP 1988123396 U JP1988123396 U JP 1988123396U JP 12339688 U JP12339688 U JP 12339688U JP H0725958 Y2 JPH0725958 Y2 JP H0725958Y2
- Authority
- JP
- Japan
- Prior art keywords
- diameter
- male member
- luer taper
- female member
- large diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、中空の雄部材と中空の雌部材とを嵌合して接
続し、その内部を連通させる接続部材の改良に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an improvement of a connecting member that fits and connects a hollow male member and a hollow female member and communicates the inside thereof.
（従来技術） 従来、中空の雄部材と中空の雌部材とを嵌合して接続
し、その内部を連通させる医療用の接続部材としては、
ルアーテーパを形成した雄部材を該雄部材が嵌合可能な
雌部材に嵌合して接続するものが知られている。該接続
部材は、テーパ面同士による接続なので構造が簡単であ
るが、雌部材と雄部材との接続が摩擦によってのみ嵌合
保持されているので減菌時の熱により、互いに収縮した
とき液密性が低下しまた、互いに離脱しやすいという不
都合があった。(Prior Art) Conventionally, as a medical connecting member that fits and connects a hollow male member and a hollow female member and communicates the inside thereof,
It is known that a male member having a luer taper is fitted and connected to a female member into which the male member can be fitted. The connecting member has a simple structure because it is connected by tapered surfaces, but since the connection between the female member and the male member is fitted and held only by friction, it is liquid-tight when contracted due to heat during sterilization. However, there is a problem that the properties are deteriorated and that they are easily separated from each other.
そこで、実公昭61−25798号公報にみられる接続部材
は、前記不都合を解消しようとするもので、雄部材のル
アーテーパ部の基端部に複数のリブを軸方向に設け、前
記雄部材を挿入する側の雌部材の挿着孔に内面を連なっ
て前記リブを収容する内壁を設けると共に該内壁に環状
突起を設け、該環状突起に係合する溝を前記リブに設け
て、前記雄部材をルアーテーパ部により前記雌部材に嵌
合させると共に前記リブの溝を前記内壁の環状突起に係
止させて接続するものである。Therefore, the connection member disclosed in Japanese Utility Model Publication No. 61-25798 is intended to eliminate the above-mentioned inconvenience, and a plurality of ribs are axially provided at the base end portion of the luer taper portion of the male member to insert the male member. The inner surface of the female member on the side of which the inner surface is connected is provided with an inner wall for accommodating the rib, an annular protrusion is provided on the inner wall, and a groove engaging with the annular protrusion is provided on the rib to form the male member. The lure taper portion is fitted to the female member, and the groove of the rib is locked to the annular projection of the inner wall to be connected.
しかし、以上のような構成によるときは、構造が複雑で
あって、しかも前記溝と前記環状突起との係止によって
単に接合強度を増したにすぎず、前記雄部材と雌部材と
を接続した際の雄部材外面と雌部材内面との液密性の低
下については解決されていなかった。However, in the case of the above configuration, the structure is complicated, and moreover, the joint strength is merely increased by the engagement of the groove and the annular projection, and the male member and the female member are connected to each other. The decrease in liquid tightness between the outer surface of the male member and the inner surface of the female member has not been solved.
（解決すべき課題） かかる不都合を解消し、本考案は、接続部分が離脱し難
くかつ液密性の高い接続部材を構造を簡単に提供するこ
とを目的とする。(Problems to be Solved) An object of the present invention is to solve the above-mentioned inconveniences and to easily provide a structure of a connecting member which has a liquid-tight connection member in which a connecting portion is hard to be separated.
（課題を解決するための手段） かかる目的を達成すべく、本考案は、外面にルアーテー
パ部を形成した中空の雄部材と、該雄部材のルアーテー
パ部が挿脱自在に嵌合する挿着孔を形成した中空の雌部
材とから成る接続部材において、前記雄部材は、前記ル
アーテーパ部の後端の外面全周に連なってその外側に張
り出す段部を介して後方に同一外径を有して延びる大径
部を備え、前記雌部材は、前記挿着孔に雄部材のルアー
テーパ部を挿着したとき、該雄部材の大径部の外周に密
着固定される弾発的に拡径自在の筒状部を備え、該筒状
部は、前記挿着孔に連なって前記大径部の外径以上の径
を有する内側段部から後方に次第に縮径して前記大径部
より小径であって、且つルアーテーパ部を延長した外径
より大径の最小内径部を後端部に備えることを特徴とす
る。(Means for Solving the Problem) In order to achieve such an object, the present invention provides a hollow male member having a luer taper portion formed on an outer surface thereof and an insertion hole into which the luer taper portion of the male member is removably fitted. In the connection member consisting of a hollow female member formed with, the male member has the same outer diameter in the rear via a step portion that is continuous with the entire outer peripheral surface of the rear end of the luer taper portion and projects outwardly thereof. The female member is elastically expandable so that when the luer taper portion of the male member is inserted into the insertion hole, the female member is closely fixed to the outer periphery of the large diameter portion of the male member. The tubular portion has a diameter smaller than that of the large diameter portion and is gradually reduced rearward from an inner step portion having a diameter equal to or larger than the outer diameter of the large diameter portion, the diameter being continuous with the insertion hole. And the rear end has a minimum inner diameter that is larger than the outer diameter of the extended luer taper. And are characterized.
（作用） かかる手段によるときは、前記雌部材の挿着孔に前記雄
部材のルアーテーパ部を挿入すると、前記雌部材の筒状
部には、雄部材の大径部が該筒状部を膨径しつつ挿入す
る。(Operation) With such means, when the luer taper portion of the male member is inserted into the insertion hole of the female member, the large-diameter portion of the male member expands into the tubular portion of the female member. Insert while making a diameter.
ここで、該雄部材の大径部が該筒状部の内径を拡げるた
め、それに反して該筒状部は縮径しようとし、雄部材の
大径部に雌部材の筒状部が常に圧接して締めつける状態
となり、前記雌部材の筒状部内面は前記雄部材の大径部
外面に密着する。Here, since the large-diameter portion of the male member expands the inner diameter of the tubular portion, on the contrary, the tubular portion tries to reduce its diameter, and the tubular portion of the female member is constantly pressed against the large-diameter portion of the male member. Then, the inner surface of the cylindrical portion of the female member comes into close contact with the outer surface of the large diameter portion of the male member.
また、前記雌部材の挿着孔と筒状部との間に設けた段部
は、前記雄部材の大径部が該雌部材の筒状部の内径を拡
げた時の影響が該雌部材の挿着孔に伝わるのを抑え、こ
れによって挿着孔の内径の変化を抑制する。Further, the stepped portion provided between the insertion hole of the female member and the tubular portion is affected by the large diameter portion of the male member expanding the inner diameter of the tubular portion of the female member. Is suppressed from being transmitted to the insertion hole, and thus the change in the inner diameter of the insertion hole is suppressed.
そして、雌部材の挿着孔と雄部材のルアーテーパ部との
嵌合と、雌部材の筒状部の雄部材の大径部に対する締め
つけによる両者の接合強度が増す。Then, the fitting strength between the insertion hole of the female member and the luer taper portion of the male member and the fastening of the tubular portion of the female member to the large diameter portion of the male member are increased.
また、減菌時の熱により互いに収縮しても、筒状部が大
径部に弾発的に圧縮しているので、筒状部と大径部の液
密性の低下が抑制される。Further, even if they contract with each other due to heat at the time of sterilization, the tubular portion is elastically compressed into the large diameter portion, so that the deterioration of the liquid tightness between the tubular portion and the large diameter portion is suppressed.
（実施例） 本考案の実施例を図面を用いて説明する。(Example) The Example of this invention is described using drawing.
第１図は本実施例の断面図であり、第２図は本実施例を
接続した状態の部分断面図である。FIG. 1 is a cross-sectional view of this embodiment, and FIG. 2 is a partial cross-sectional view of a state in which this embodiment is connected.
本実施例の接続部材は、特に医療用として、輪液管ａと
ｂを接続する部材として該輪液管ａの端部に挿着した中
空の雄部材１と、該輪液管ｂの端部に挿着した中空の雌
部材２とから成る。該雄部材１の外面には、ルアーテー
パ部３が形成されている。前記雌部材２の内面には、前
記雄部材１のルアーテーパ部３が挿脱自在に嵌合する挿
着孔４が形成されている。また、前記雄部材１のルアー
テーパ部３端外面全周に連なってその外側に張り出して
段部５が設けられている。雄部材１の後端部には、該段
部５から更に後方に同一外径を有して延びる大径部６が
設られている。The connecting member of the present embodiment is, particularly for medical purposes, a hollow male member 1 inserted into an end portion of the wheel fluid pipe a as a member for connecting the wheel fluid pipes a and b, and an end of the wheel fluid pipe b. And a hollow female member 2 inserted into the portion. A luer taper portion 3 is formed on the outer surface of the male member 1. An insertion hole 4 into which the luer taper portion 3 of the male member 1 is removably fitted is formed on the inner surface of the female member 2. Further, a step portion 5 is provided so as to be continuous with the entire outer peripheral surface of the luer taper portion 3 of the male member 1 so as to project to the outside thereof. At the rear end of the male member 1, there is provided a large diameter portion 6 which extends further rearward from the step portion 5 with the same outer diameter.
また、前記雌部材２の挿着孔４の前記雄部材１の挿入側
端部７内面全周に連なってその外側に張り出して内側段
部８が設けられている。該雌部材２の内側段部８は前記
大径部６の外径以上の径に形成されている。該雌部材２
の内側段部８から更に後方に次第に縮径して大径部６よ
り小径となり、かつルアーテーパ部３を延長した外径よ
り大径の筒状部９が設けられている。Further, an inner step portion 8 is provided so as to be continuous with the entire circumference of the inner surface of the insertion side end portion 7 of the male member 1 of the insertion hole 4 of the female member 2 and project outwardly thereof. The inner step portion 8 of the female member 2 is formed to have a diameter larger than the outer diameter of the large diameter portion 6. The female member 2
A tubular portion 9 having a diameter smaller than that of the large diameter portion 6 by gradually reducing the diameter further rearward from the inner step portion 8 and having a diameter larger than the outer diameter of the extended luer taper portion 3 is provided.
更に詳細には、該雌部材２は、ポリプロピレンを材料と
した。また、該筒状部９の内側段部８の径を5.0mmと
し、最小内径部10の径を4.9mmとした。この内側段部８
の径は、前記雄部材１の大径部６の径と同径とした。更
に、前記雌部材２の挿着孔４の挿入側端部の径は4.39mm
とした。また、前記筒状部９の最大の内径となる内側段
部８に連なる筒状部９の肉厚は全周とも0.7mmとし、最
小内径部10の位置の筒状部９の肉厚を0.8mmとした。More specifically, the female member 2 is made of polypropylene. The diameter of the inner step portion 8 of the tubular portion 9 was 5.0 mm, and the diameter of the smallest inner diameter portion 10 was 4.9 mm. This inner step 8
The diameter of was the same as the diameter of the large diameter portion 6 of the male member 1. Furthermore, the diameter of the insertion side end of the insertion hole 4 of the female member 2 is 4.39 mm.
And Further, the wall thickness of the tubular portion 9 connected to the inner step portion 8 having the maximum inner diameter of the tubular portion 9 is 0.7 mm in all circumferences, and the wall thickness of the tubular portion 9 at the position of the minimum inner diameter portion 10 is 0.8 mm. mm.
この場合、前記最小内径部10と前記大径部６との半径差
は、0.05〜0.5mmとするのが好ましく、そのなかでも0.1
〜0.3mmとするのが高い液密性，高い接合強度が得られ
かつ接続操作が容易である点で最も好ましい。In this case, the radius difference between the minimum inner diameter portion 10 and the large diameter portion 6 is preferably 0.05 to 0.5 mm, and among them, 0.1
A thickness of up to 0.3 mm is most preferable in that high liquid-tightness, high bonding strength are obtained, and connection operation is easy.
本実施例の接続部材の雄部材１と雌部材２とを接続した
場合には、前記雄部材１の大径部６は前記雌部材２の筒
状部９に嵌合する。このとき、筒状部９の最小内径部は
ルアーテーパ部３の外径より大径であるのでルアーテー
パ部３の接続には支障がない。また、雄部材１の大径部
６より雌部材２の筒状部９の内面がやや小径であるの
で、筒状部９には、弾発的に縮径させようとする力が働
き、該雌部材２の筒状部９内面が雄部材１の大径部６外
面に強制的に密着する。このとき、前記雌部材２の挿着
孔４と筒状部９との間に設けた段部８で筒状部９が外方
に屈曲して大径部６が筒状部９の内径を拡げた時の影響
を筒状部９のみでくい止め、該筒状部９の膨径が該雌部
材２の挿着孔４に伝わるのを抑え、これによって挿着孔
４の内径は変化することがない。このため、雄部材１の
ルアーテーパ部３と雌部材２の挿着孔４との間に隙間が
発生する等による液密性の低下が起こらない。When the male member 1 and the female member 2 of the connecting member of this embodiment are connected, the large diameter portion 6 of the male member 1 fits into the tubular portion 9 of the female member 2. At this time, since the minimum inner diameter of the tubular portion 9 is larger than the outer diameter of the luer taper portion 3, there is no problem in connecting the luer taper portion 3. Further, since the inner surface of the tubular portion 9 of the female member 2 is slightly smaller than the inner diameter of the large diameter portion 6 of the male member 1, a force for elastically reducing the tubular portion 9 acts, The inner surface of the tubular portion 9 of the female member 2 is forcibly adhered to the outer surface of the large diameter portion 6 of the male member 1. At this time, the cylindrical portion 9 is bent outward at the step portion 8 provided between the insertion hole 4 of the female member 2 and the cylindrical portion 9 so that the large diameter portion 6 changes the inner diameter of the cylindrical portion 9. The influence of the expansion is blocked only by the tubular portion 9, and the expansion diameter of the tubular portion 9 is prevented from being transmitted to the insertion hole 4 of the female member 2, whereby the inner diameter of the insertion hole 4 is changed. There is no. Therefore, the liquid tightness does not deteriorate due to a gap or the like between the luer taper portion 3 of the male member 1 and the insertion hole 4 of the female member 2.
このようにして接続された本実施例の接続部材は、雄部
材１のルアーテーパ部３と雌部材２の挿着孔４とで密着
するだけでなく、雄部材１の大径部６を雌部材２の筒状
部９によって密着保持されるので、雄部材１と雌部材２
との接続がやや不足しているような場合であっても高い
液密性と高い接合強度が実現できる。The connecting member of this embodiment connected in this manner not only makes the luer taper portion 3 of the male member 1 and the insertion hole 4 of the female member 2 adhere to each other but also makes the large-diameter portion 6 of the male member 1 contact the female member. Since it is held in close contact by the tubular portion 9 of 2, the male member 1 and the female member 2
High liquid tightness and high bonding strength can be realized even when the connection with the is slightly insufficient.
また、熱による減菌処理を施すとき、その熱により雄部
材１と雌部材２とが互いに縮径しても、筒状部９が大径
部６に弾発的に圧縮しているので、筒状部９と大径部６
の液密性の低下が抑制されて互いの接合強度が弱まるこ
とがない。Further, when the sterilization treatment by heat is performed, even if the male member 1 and the female member 2 are reduced in diameter due to the heat, since the tubular portion 9 is elastically compressed to the large diameter portion 6, Cylindrical part 9 and large diameter part 6
The liquid-tightness is prevented from lowering and the joint strength between them does not weaken.
（効果） 以上のことから明らかなように、本考案によれば、前記
筒状部が前記大径部に密着して該大径部を緊締して固定
するので、前記雌部材と前記雄部材とが接続後に離脱し
難く、前記ルアーテーパ部と前記挿着孔との嵌合による
密着に加えて筒状部と大径部とが強制的に密着するの
で、高い液密性の接続部材を構造を簡単に提供すること
ができる。(Effect) As is apparent from the above, according to the present invention, since the tubular portion is in close contact with the large diameter portion and the large diameter portion is tightened and fixed, the female member and the male member are fixed. Is difficult to separate after connection, and the tubular portion and the large-diameter portion are forcibly brought into close contact with each other in addition to the close contact due to the fitting of the luer taper portion and the insertion hole. Can be provided easily.
更に、大径部に筒状部が密着していれば、雄部材と雌部
材との接続が不十分であっても高い液密性と高い接合強
度を維持することができる。また、加熱減菌処理を施す
際に、雄部材と雌部材とに熱による膨縮が発生しても筒
状部が大径部に弾発的に圧接しているので高い液密性と
高い接合強度を維持することができる。Furthermore, if the cylindrical portion is in close contact with the large diameter portion, high liquid tightness and high joint strength can be maintained even if the connection between the male member and the female member is insufficient. Further, when heat sterilization treatment is performed, even if expansion and contraction due to heat occur in the male member and the female member, the tubular portion elastically presses against the large diameter portion, so high liquid-tightness and high The bonding strength can be maintained.
第１図は本考案の実施例の断面図、第２図は本考案の実
施例の接続状態の部分断面図である。 １……雄部材 ２……雌部材 ３……ルアーテーパ部 ４……挿着孔 5,8……段部 ６……大径部 ９……筒状部FIG. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is a partial sectional view of an embodiment of the present invention in a connected state. 1 ... Male member 2 ... Female member 3 ... Luer taper part 4 ... Insertion hole 5,8 ... Step part 6 ... Large diameter part 9 ... Cylindrical part
Claims (1)
部材と、該雄部材のルアーテーパ部が挿脱自在に嵌合す
る挿着孔を形成した中空の雌部材とから成る接続部材に
おいて、 前記雄部材は、前記ルアーテーパ部の後端の外面全周に
連なってその外側に張り出す段部を介して後方に同一外
径を有して延びる大径部を備え、 前記雌部材は、前記挿着孔に雄部材のルアーテーパ部を
挿着したとき、該雄部材の大径部の外周に密着固定され
る弾発的に拡径自在の筒状部を備え、 該筒状部は、前記挿着孔に連なって前記大径部の外径以
上の径を有する内側段部から後方に次第に縮径して前記
大径部より小径であって、且つルアーテーパ部を延長し
た外径より大径の最小内径部を後端部に備えることを特
徴とする接続部材。1. A connecting member comprising a hollow male member having a luer taper portion formed on an outer surface thereof and a hollow female member having an insertion hole into which the luer taper portion of the male member is removably fitted. The male member includes a large-diameter portion that extends rearward with the same outer diameter through a step portion that extends over the outer surface of the rear end of the luer taper portion and extends outwardly of the outer surface. When the luer taper portion of the male member is inserted into the fitting hole, the elastic member is provided with a cylindrical portion which is elastically expandable and is closely fixed to the outer periphery of the large diameter portion of the male member. The diameter is smaller than the large diameter portion by gradually reducing the diameter toward the rear from the inner step portion having a diameter larger than the outer diameter of the large diameter portion connected to the hole, and is larger than the outer diameter obtained by extending the luer taper portion. A connecting member having a minimum inner diameter portion at a rear end portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988123396U JPH0725958Y2 (en) | 1988-09-22 | 1988-09-22 | Connection member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988123396U JPH0725958Y2 (en) | 1988-09-22 | 1988-09-22 | Connection member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0245759U JPH0245759U (en) | 1990-03-29 |
| JPH0725958Y2 true JPH0725958Y2 (en) | 1995-06-14 |
Family
ID=31372210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988123396U Expired - Lifetime JPH0725958Y2 (en) | 1988-09-22 | 1988-09-22 | Connection member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0725958Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4494602B2 (en) * | 2000-07-26 | 2010-06-30 | 櫻護謨株式会社 | Bonding bracket |
| DE102006050212A1 (en) * | 2006-10-25 | 2008-04-30 | Fresenius Kabi Deutschland Gmbh | Connecting piece for enteral transfer system, has distal attachment piece of connection tube with locking element, that is formed so that form-fit detaching connection is produced with connection piece of probe tube of enteral feed tube |
| EP3456376A1 (en) * | 2013-03-28 | 2019-03-20 | Dentsply IH AB | Catheter coupling arrangement |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57211353A (en) * | 1981-06-23 | 1982-12-25 | Terumo Corp | Connecting structure of tube for dialysis, transfusion and perfusion |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5283294U (en) * | 1975-12-16 | 1977-06-21 |
-
1988
- 1988-09-22 JP JP1988123396U patent/JPH0725958Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57211353A (en) * | 1981-06-23 | 1982-12-25 | Terumo Corp | Connecting structure of tube for dialysis, transfusion and perfusion |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0245759U (en) | 1990-03-29 |
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