JPS6168045A - Medical stopcock - Google Patents
Medical stopcockInfo
- Publication number
- JPS6168045A JPS6168045A JP59188119A JP18811984A JPS6168045A JP S6168045 A JPS6168045 A JP S6168045A JP 59188119 A JP59188119 A JP 59188119A JP 18811984 A JP18811984 A JP 18811984A JP S6168045 A JPS6168045 A JP S6168045A
- Authority
- JP
- Japan
- Prior art keywords
- holder
- cock
- medical stopcock
- medical
- stopcock
- 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.)
- Granted
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 ■、発明の背景 技術分野 本発明は医療用活栓に関する。[Detailed description of the invention] ■ Background of the invention Technical field The present invention relates to a medical stopcock.
先行技術
従来、導尿チューブ、採血チューブ等に接続し、用いら
れる医療用活栓としては、例えば第５図ないし第６図に
示すものがある。この医療用活栓１０は、３方活栓に係
り、３つの流体口ポート１１Ａ、ＩＩＢ、ＩＩＧを備え
たホルダ１２と、該ホルダ１２に嵌合され、相互に連通
ずる第１口部１４Ａ、第２０部１４Ｂおよび第３０部１
４ｃを備えたコック１５とから構成される。コック１５
には、レバー１６が設けられ、該レバー１６を矢示Ａ方
向に回転することにより、コック１５をホルダ１２に対
して摺動させる状態で回転可能としている。すなわち医
療用活栓１０は、第１〜第３の流体口ポートＩＩＡ、Ｌ
ＩＢ、ｌｌＣと第１０部〜第３０部１４Ａ、１４Ｂ、１
４Ｃとの接続を切換え可能とし、またレバー１６の回転
操作により接続状態の調整を図り、各ポートを流れる流
体、例えば、血液、尿等の流量調整を可能としている。PRIOR ART Conventionally, there are medical stopcocks shown in FIGS. 5 and 6, which are connected to urine drainage tubes, blood collection tubes, and the like. This medical stopcock 10 is a three-way stopcock, and includes a holder 12 equipped with three fluid port ports 11A, IIB, and IIG, a first port 14A, and a 20th port that are fitted into the holder 12 and communicate with each other. Part 14B and Part 30 1
4c and a cock 15. cook 15
is provided with a lever 16, and by rotating the lever 16 in the direction of arrow A, the cock 15 can be rotated in a sliding state relative to the holder 12. That is, the medical stopcock 10 has the first to third fluid ports IIA, L.
IB, llC and Parts 10 to 30 14A, 14B, 1
The connection with 4C can be switched, and the connection state can be adjusted by rotating the lever 16, thereby making it possible to adjust the flow rate of fluid, such as blood, urine, etc., flowing through each port.
ホルダ１２に対するコック１５の嵌合は、コック１５の
外径よりもホルダ１２の外径を小とするマイナス嵌合状
態で行われ、これにより、ホルダ１２の内面１７とコッ
ク１５の外面１８の密着性を確保している。ホルダ１２
の内面１７およびコック１５の外面１８は、両者の密着
性を向上するために真円度の優れたものが望専しく、ま
た、経時的変形の少ないものが望まれている。コック１
５の材質としては、ホルダ１２とコック１５の密着性を
向上させるために、弾性に富む軟質樹脂材を用いること
が考えられる。しかしながら。The cock 15 is fitted to the holder 12 in a minus-fit state in which the outer diameter of the holder 12 is smaller than the outer diameter of the cock 15, thereby ensuring close contact between the inner surface 17 of the holder 12 and the outer surface 18 of the cock 15. Ensures sex. Holder 12
It is desirable that the inner surface 17 of the cock 15 and the outer surface 18 of the cock 15 have excellent roundness in order to improve the adhesion between the two, and that they are less likely to deform over time. Cook 1
As the material of 5, a soft resin material with high elasticity may be used to improve the adhesion between the holder 12 and the cock 15. however.
コック１５を軟質樹脂材で形成する場合、レバー題があ
る。このため、コック１５に剛性を有する硬質樹脂材を
用い、その分、コック１５に対するホルダ１２のマイナ
ス嵌合幅を大とすることが考えられる。これとともに、
第５図に示すようにコック１５の底部にファスナーピン
１９を設け。When the cock 15 is made of a soft resin material, there is a lever problem. For this reason, it is conceivable to use a hard resin material having rigidity for the cock 15 and increase the negative fitting width of the holder 12 with respect to the cock 15 accordingly. Along with this,
As shown in FIG. 5, a fastener pin 19 is provided at the bottom of the cock 15.
また、ホルダ１２の底部にビン孔２０を設け、両者を嵌
合するようにする。すなわち、硬質樹脂材を用いること
によるホルダ１２とコック１５の密着性の低下分を、マ
イナス嵌合幅を大とすることで補い、また密着性低下に
より考えられるコック１５の浮き上りをファスナーピン
１９とビン孔２０の嵌合により防止し、コック１５がホ
ルダ１２から抜は出る等のことがない゛ようにするもの
である。Further, a bottle hole 20 is provided at the bottom of the holder 12 so that the two can fit together. That is, the reduction in adhesion between the holder 12 and the cock 15 due to the use of a hard resin material is compensated for by increasing the negative fitting width, and the lifting of the cock 15, which may be caused by the reduction in adhesion, is compensated for by increasing the fastener pin 19. The cock 15 is prevented from being pulled out from the holder 12 by fitting into the bottle hole 20.
しかしながら、ｌ―記のようにマイナス嵌合幅を大とす
る場合、ホルダ１２とコック１５の摺動抵抗が大となり
、コック１５の回転機能が悪くなるという問題がある。However, when the negative fitting width is increased as shown in item 1, there is a problem that the sliding resistance between the holder 12 and the cock 15 increases, and the rotation function of the cock 15 deteriorates.
また、コック１５にファスナーピン１９を設けたり、あ
るいはホルダ１２にビン孔２０を設ける場合、医療用活
栓ｌＯの構造が複雑となる問題がある。Furthermore, when the stopcock 15 is provided with the fastener pin 19 or the holder 12 is provided with the vial hole 20, there is a problem that the structure of the medical stopcock IO becomes complicated.
ＩＩ、発明の目的
本発明は、コックの回転機能を損なうことなく、コック
とホルダの密着性を簡易な構造により向上可能とする医
療用活栓を提供することを目的としている。II. OBJECTS OF THE INVENTION It is an object of the present invention to provide a medical stopcock that can improve the adhesion between the stopcock and the holder with a simple structure without impairing the rotational function of the stopcock.
■、発明の構成
上記目的を達成するために１本発明は、ホルダと、該ホ
ルダに嵌合するコックとからなる医療用活栓において、
コックの基体を比較的硬質な樹脂によって形成し、該基
体のホルダに基体の嵌合部分の全周部に一体に回転する
比較的軟質な弾性を有する樹脂からなるすり合わせ部を
形成するようにしたものである。(2) Structure of the Invention In order to achieve the above object, the present invention provides a medical stopcock comprising a holder and a cock that fits into the holder.
The base of the cock is made of a relatively hard resin, and the holder of the base is provided with a fitting part made of a relatively soft elastic resin that rotates integrally around the entire circumference of the fitting part of the base. It is something.
また、本発明１＝係る医療用活栓は、前記すり合わせ部
をオレフィン系エラストマー又はそれを配合するように
したものである。Further, in the medical stopcock according to the present invention 1, the abutting portion is made of an olefin elastomer or blended with an olefin elastomer.
また、本発明に係る医療用活栓は、前記すり合わせ部を
スチレン系エラストマー又はそれを配合するようにした
ものである。Further, in the medical stopcock according to the present invention, the abutting portion is made of a styrene elastomer or is blended with a styrene elastomer.
また、本発明に係る医療用活栓は、前記すり合わせ部の
シ、７Ｃ硬度を２０〜４０としたものである。Further, in the medical stopcock according to the present invention, the abutment portion has a 7C hardness of 20 to 40.
また、本発明に係る医療用活栓は、ホルダとコックの嵌
合面が０．５ｋｚ／ ｃｍ″の空気圧力で漏れずに、か
つ初期摺動抵抗が１．Ｏｋｇ／ｃ層以下としたものであ
る。Furthermore, the medical stopcock according to the present invention is such that the fitting surface between the holder and the cock does not leak under an air pressure of 0.5 kHz/cm'', and the initial sliding resistance is 1.0 kg/c layer or less. be.
また、本発明に係る医療用活栓は、コックの外径とホル
ダの内径との差が０．２〜０．２４■謹としたものであ
る。Further, in the medical stopcock according to the present invention, the difference between the outer diameter of the stopcock and the inner diameter of the holder is 0.2 to 0.24 cm.
また１本発明に係る医療用活栓は、ホルダおよびコック
をガンマ線により滅菌処理したものである。Furthermore, in the medical stopcock according to the present invention, the holder and the stopcock are sterilized using gamma rays.
■、発明の詳細な説明
第１図は未発明の一実施例に係る医療用活栓を小す一部
破断の止面図、第２図は第１１ｄのＩＩ −ＩＩ線に沿
う断面図である。医療用活栓３０は、３方活栓に係り、
３つの流体口ボー）３１Ａ、３１Ｂ、３１Ｃを備えたホ
ルダ３２と、該ホルダ３２に嵌合され、相互に連通ずる
第１０部３４Ａ、第２０部３４Ｂおよび第３０部３４Ｃ
を備えたコック３５とから構成される。コック３５には
、レバー３６が設けられ、該レバー３６を矢示Ｂ方向に
回転することにより、コック３５をホルダ３２に対して
摺動させる状態で回転可能としている。■Detailed Description of the Invention Fig. 1 is a partially cutaway top view of a medical stopcock according to an embodiment of the invention, and Fig. 2 is a sectional view taken along line II-II in Fig. 11d. . The medical stopcock 30 is a three-way stopcock,
A holder 32 with three fluid ports 31A, 31B, and 31C, and a 10th part 34A, a 20th part 34B, and a 30th part 34C that are fitted into the holder 32 and communicate with each other.
It consists of a cock 35 with a The cock 35 is provided with a lever 36, and by rotating the lever 36 in the direction of arrow B, the cock 35 can be rotated in a sliding manner with respect to the holder 32.
これにより、例えば第２図に示すように、第１の流体口
ポート３１Ａと第１０部３４Ａを、第２の流体口ボート
３１Ｂと第２０部３４Ｂを、第３の流体口ポー）３１Ｃ
と第３０部３４Ｇとを接続することが可能となり、また
、レバー３６の回転操作により、接続状態の調整を図り
、各ポートを流れる流体１例えば血液、尿等の流量調整
を可能としている。さらに、医療用活栓３０は、レバー
３６の回転操作により、第１の流体口ポー）３１Ａと第
２０部３４Ｂを接続し、かつ第２の流体口ポート３１Ｂ
、！−第１０部３４Ａを接続する態様。As a result, for example, as shown in FIG.
and the 30th section 34G, and by rotating the lever 36, the connection state can be adjusted, and the flow rate of fluid 1, such as blood, urine, etc., flowing through each port can be adjusted. Furthermore, by rotating the lever 36, the medical stopcock 30 connects the first fluid port 31A and the twentieth portion 34B, and connects the second fluid port 31B.
,! - A mode of connecting the tenth part 34A.
あるいは第２の流体口ポー）３１Ｂと第１０部３４Ａを
接続し、かつ第３の流体口ポート３１Ｃと第２０部３４
Ｂを接続する態様、さらに第１の流体口ボート３１Ａと
第３０部３４Ｇを接続し。Alternatively, connect the second fluid port 31B and the tenth section 34A, and connect the third fluid port 31C and the twentieth section 34A.
In addition, the first fluid port boat 31A and the 30th part 34G are connected.
かつ第３の流体口ポー）３１Ｇと＠１０部３４Ａをｖｃ
統する態様のいずれかに切換可能としている。and the third fluid port port) 31G and @10 part 34A are vc
It is possible to switch to either mode.
ホルダ３２に対するコック３５の嵌合は、コック３５の
外径よりもホルダ３２の外径を小とするマイナス嵌合状
態で行われ、ホルダ３２の内面３７とコック３５の外面
３８の密着性を確保している。コック３５は、基体３９
の部分を比較的硬質な樹脂によって形成し、また該基体
３９のホルダ３２に対する嵌合部分の全周部を、比較的
軟質な弾性を有する樹脂により形成し、該嵌合部分をホ
ルダ３２の内面３７に対するすり合わせ部４０としてい
る。すなわち、コック３５は、基体３９とすり合わせ部
４０とを二色成形により一体に形成され１両者の一体化
は、例えば基体３９とすり合わせ部４０とを互いに相溶
性を有する材質、例えば基体３９をポリプロピレン、す
り合わせ部４０をオレフィン系エラストマーで形成する
ことにより行うようにしている。The cock 35 is fitted to the holder 32 in a minus-fit state in which the outer diameter of the holder 32 is smaller than the outer diameter of the cock 35, ensuring close contact between the inner surface 37 of the holder 32 and the outer surface 38 of the cock 35. are doing. The cock 35 is connected to the base 39
The entire periphery of the fitting portion of the base body 39 to the holder 32 is formed of a relatively soft elastic resin, and the fitting portion is formed of a relatively hard resin. A fitting portion 40 is provided with respect to 37. That is, the cock 35 is integrally formed by two-color molding of the base body 39 and the abutment part 40. For example, the base body 39 and the abutment part 40 are made of a material that is compatible with each other, for example, the base body 39 is made of polypropylene. This is achieved by forming the rubbing portion 40 from an olefin elastomer.
基体３９の材質としては、ポリプロピレン等の硬質樹脂
材が用いられ、コック３５の全体の剛性を保持するよう
にしている。一方、すり合わせ部４０の材質には、オレ
フィン系エラストマーやスチレン系エラストマー等の比
較的軟質で弾性を有する樹脂材、あるいはこれらの樹脂
材を配合する樹脂材が用いられる。これにより、ホルダ
３２の内面３７との密着性を確保するとともに、ホルダ
３２に対してコー、り３５を回転させる場合、両者の摺
動抵抗を極力少ないものにしている。A hard resin material such as polypropylene is used as the material for the base body 39 to maintain the overall rigidity of the cock 35. On the other hand, the material of the mating portion 40 is a relatively soft and elastic resin material such as an olefin elastomer or a styrene elastomer, or a resin material containing these resin materials. This ensures close contact with the inner surface 37 of the holder 32, and when rotating the shaft 35 with respect to the holder 32, the sliding resistance between the two is minimized.
ここで、ホルダ３２の材質にメタクリル樹脂（商品名：
デルベット、旭化成工業（株）製）を使用するとともに
、すり合わせ部４０の材質としてポリプロピレンとスチ
レン系エラストマー（商品名：ラバロン、三菱油化（株
）製）とをそれぞれ所定の配合比（重量比）で配合させ
たものを使用し、それぞれ異なる配合比とした場合にお
ける、すり合わせ部４０の硬度、すり合わせ部４０とホ
ルダ３２の内面３７との密着性、さらに。Here, the material of the holder 32 is methacrylic resin (product name:
Delvet (manufactured by Asahi Kasei Industries, Ltd.) is used, and polypropylene and styrene elastomer (trade name: Lavalon, manufactured by Mitsubishi Yuka Co., Ltd.) are used at predetermined mixing ratios (weight ratio) as the materials for the mating portion 40. The hardness of the rubbing part 40, the adhesion between the rubbing part 40 and the inner surface 37 of the holder 32, and the adhesion between the rubbing part 40 and the inner surface 37 of the holder 32, when the mixtures of the above are used and the compounding ratios are different.
コ、り３５とホルダ３２の嵌合時におけるホルダ３２の
内径変化を、それぞれ測定した。すり合わせ部４０の硬
度は、ショアＣＭのかたさ試験機により測定を行った。Changes in the inner diameter of the holder 32 when the holder 35 and the holder 32 were fitted together were measured. The hardness of the mating portion 40 was measured using a Shore CM hardness tester.
密着性については、第２図に示すように第１の流体口ポ
ート３１Ａと第１０部３４Ａを、第２の流体口ポート３
１Ｂと第２０部３４Ｂを、第３の流体口ポート３１Ｃと
第３０部３４とをそれぞれ接続する状態とし、この状態
で第２の流体口ポート３１Ｂおよび第３の流体口ポート
３１Ｃを閉塞するとともに、第１の流体口ポート３１Ａ
から０．４ｋｘノｃｒｎ’ 、 １．０ｋｇ／ ｃｍ’
。Regarding adhesion, as shown in FIG. 2, the first fluid port 31A and the tenth part 34A are
1B and the 20th part 34B are connected to the third fluid port 31C and the 30th part 34, respectively, and in this state, the second fluid port 31B and the third fluid port 31C are closed. , first fluid port 31A
From 0.4kx crn', 1.0kg/cm'
.
２．０ｋｇ／ ｃｒｒｒ’のそれぞれの空気圧を加える
ことによりその漏れを測定した。１Ｍ定は、各空気圧に
ついてそれぞれ５＠行ない、５回のうち何回漏れたかの
試験を行うものとした。さらに、ホルダ３２の内径変化
は、コック３５を嵌合する前におけるホルタ３２の内径
をφ５．９８ｍ−とするとともに、嵌合後におけるホル
ダ３２の内径をそれぞれ測定し。The leakage was measured by applying a respective air pressure of 2.0 kg/crrr'. The 1M test was conducted 5 times for each air pressure, and the test was conducted to see how many times out of 5 times there was a leak. Furthermore, the inner diameter of the holder 32 was determined by setting the inner diameter of the holder 32 to φ5.98 m before fitting the cock 35, and measuring the inner diameter of the holder 32 after fitting.
該測定結果を嵌合する前におけるホルダ３２の内径と比
較することとした。なお、測定は、該コック３５をホル
ダ３２と嵌合させて、６０℃のオーブンで２４時間加熱
した後に行うようにする。ＩＩ４定結果は、次表の通り
である。The measurement results were compared with the inner diameter of the holder 32 before fitting. Note that the measurement is performed after the cock 35 is fitted into the holder 32 and heated in an oven at 60° C. for 24 hours. II4 results are shown in the table below.
ＰＰ：ポリプロピレン ラ／ヘロン：スチレン系エラ
ストマー上記測定結果より、すり合わせ部４０の硬度が
小さく、材質を、ｗ性を有する軟質材とすることが、ホ
ルダ３２の内面３７との密着性を保持する点で有効であ
ることが認められる。すなわち、すり合わせ部４０を軟
質とすることにより、その弾性変形によりホルダ３２の
内径変化を少なくすることが可能となり、大きな圧力に
対しても十分密着性を保持することが認められる。ただ
し、すり合わせ部４０をスチレン系エストラマーのみで
形成する時のように、すり合わせ部４０を極端に軟質と
する場合は、逆に大きな圧力に耐えられず、漏れが生じ
て密着性が低下することとなる。PP: Polypropylene La/Heron: Styrene elastomer From the above measurement results, the hardness of the rubbing part 40 is small and the material is a soft material with W properties to maintain adhesion with the inner surface 37 of the holder 32. It is recognized that it is effective. That is, by making the fitting part 40 soft, it is possible to reduce changes in the inner diameter of the holder 32 due to its elastic deformation, and it is recognized that sufficient adhesion can be maintained even under large pressure. However, if the mating part 40 is made extremely soft, such as when the mating part 40 is made only of styrene-based elastomer, it may not be able to withstand large pressures, causing leakage and reducing adhesion. Become.
以上のことから、すり合わせ部４０は、ショアＣ硬度を
空気圧１．０ｋｇ／ ｃｒｎ’ではｌθ−５０、空気圧
２．０ｋｇ／ ｃｍ’では２０〜４０とすることが最も
密着性を保持する点で有効であり、材質としてポリプロ
ピレンとスチレン系エラストマーの配合比を空気圧１．
０ｋｇ／ ｃｍ’では１：３．空気圧２．０ｋｇ／ ｃ
ｒｎ’テはｌ：４程度とすることが最もよい結果を示す
ことが認められる。すり合わせ部４０は、ホルダ３２に
コー２り３５を嵌合した際に弾性変形を生じ、ホルダ３
ｚに対するコック３５の摺動抵抗を大きくすることなく
１両者の密着性を保持することが可能となる。From the above, it is effective to set the Shore C hardness of the sliding part 40 to lθ-50 at an air pressure of 1.0 kg/cm' and 20 to 40 at an air pressure of 2.0 kg/cm' in order to maintain the most adhesion. The mixing ratio of polypropylene and styrene elastomer as materials is set to an air pressure of 1.
At 0 kg/cm' it is 1:3. Air pressure 2.0kg/c
It is recognized that the best results are obtained when rn'te is set to approximately 1:4. The sliding portion 40 is elastically deformed when the holder 32 is fitted with the cable 35, and the holder 3
It becomes possible to maintain close contact between the two without increasing the sliding resistance of the cock 35 with respect to z.
また、医療用活栓１０は、 ０．５ｋｇ／ ａｍ’の空
気圧力で漏れずに、かつ初期摺動抵抗が１ｋｇ／ｃ■以
下であるように、コック３５の外径を６．２０±０．０
１腸園、ホルダ３２の内径を５．９Ｂ±０．０１置腸と
すること、すなわち、コックの外径とホルダとの内径と
の差を０．２〜０１２４■腸とすることで、ホルダ３２
に対するコック３５の摺動性を保持し１両者の密着性を
保持することが可能となる。Furthermore, the outer diameter of the cock 35 of the medical stopcock 10 is set to 6.20±0.0 mm so that the medical stopcock 10 does not leak under an air pressure of 0.5 kg/am' and the initial sliding resistance is 1 kg/cm or less. 0
1. By setting the inner diameter of the holder 32 to 5.9B ± 0.01 mm, that is, by setting the difference between the outer diameter of the cock and the inner diameter of the holder to 0.2 to 0.124 cm, the holder 32
It becomes possible to maintain the slidability of the cock 35 against the screw and maintain the close contact between the two.
さらに、医療用活栓３０は、ホルダ３２およびコー、り
３５をガンマ線により滅菌処理させることにより、医療
用として適切なものとすることが可能となる。なお、ホ
ルダ３２およびコック３５をポリプロピレンとし、すり
合わせ部をスチレン系エラストマーとすることにより、
耐ガンマ線性能がよく、ムとえ、ガンマ線に滅菌処理し
ても化学的に安定なものとすることができる。Further, the medical stopcock 30 can be made suitable for medical use by sterilizing the holder 32 and the cord 35 with gamma rays. In addition, by making the holder 32 and the cock 35 of polypropylene, and making the rubbing part a styrene elastomer,
It has good gamma ray resistance and can be chemically stable even after being sterilized by gamma rays.
このように、医療用活栓３０は、コック３５の基体３９
を比較的硬質な樹脂によって形成することにより、コッ
ク３５全体の剛性を保持し、コック３５の回転機能を確
保することが可能となる。In this way, the medical stopcock 30 has a base body 39 of the cock 35.
By forming the cock 35 from a relatively hard resin, it is possible to maintain the rigidity of the cock 35 as a whole and ensure the rotation function of the cock 35.
これとともに、該基体３９のホルダ３２に対する嵌合部
分の全周部を、比較的軟質な弾性を有する樹脂からなる
すり合わせ部４０としたため、ホルダ３２とコック３５
の密着性を確実に保持させることができる。これにより
、従来のようにコック１５に対してホルダ１２のマイナ
ス嵌合幅を大とすることなく、しかもコック１５の浮き
上り防止のためにファスナービン１９やピン孔２０を設
ける必要もなく、簡易な構造により確実にホルダ３２と
コック３５の密着性を保持させることが可能となる。At the same time, since the entire circumference of the fitting portion of the base 39 to the holder 32 is made of a relatively soft and elastic resin, the holder 32 and the cock 35 are connected to each other.
The adhesion can be maintained reliably. This eliminates the need to increase the negative fitting width of the holder 12 with respect to the cock 15 as in the past, and also eliminates the need to provide a fastener bin 19 or pin hole 20 to prevent the cock 15 from lifting up. This structure makes it possible to reliably maintain the close contact between the holder 32 and the cock 35.
なお、上記医療用活栓３０の場合、コック３５の先端部
４１を縮径としているが、第１図に２点鎖線Ｃで示めす
ように先端部４１を拡開形状とし、ホルダ３２に対する
コック３５の嵌合状態を確実にするものとしてもよい。In the case of the medical stopcock 30, the diameter of the distal end 41 of the cock 35 is reduced, but the distal end 41 is expanded as shown by the two-dot chain line C in FIG. It may also be possible to ensure the fitted state of the two.
第３図は、本発明の他の例に係る医療用活栓を示す第２
図同様の断面図である。第２図に示す医療用活栓３０は
、基体３９とすり合わせ部４０を、相溶状態で一体に結
合するようにしている。FIG. 3 is a second diagram showing a medical stopcock according to another example of the present invention.
It is a sectional view similar to the figure. The medical stopcock 30 shown in FIG. 2 has a base 39 and a fitting portion 40 that are integrally joined in a compatible state.
これに対して第３図に示す医療用活栓５０は、基体３９
とすり合わせ部４０とを互いに相溶性のない樹脂により
一体形成することとしている。すなわち、基体３９とす
り合わせ部４０のそれぞれの材質に相溶性がない場合は
、基体３９の外周部とすり合わせ部４０の内周部にそれ
ぞれ凹凸を設け、これら凹凸を嵌合させる状態で基体３
９とすり合すせ部を一体化するようにしている。On the other hand, the medical stopcock 50 shown in FIG.
The fitting portion 40 is integrally formed with resin that is incompatible with each other. That is, if the materials of the base body 39 and the abutment part 40 are not compatible, the outer circumference of the base body 39 and the inner circumference of the abrasion part 40 are respectively provided with irregularities, and the base body 3 is assembled with these concavities and convexities fitted together.
9 and the sliding part are integrated.
■、発明の具体的作用
第１図および第３図に示す医療用活栓３０および５０は
、例えば、第４図に示す尿採取装置５１に適用すること
ができる。医療用活栓３０は、導尿チューブ５２の中間
部に第１の流体口ポート３１Ａと第３の流体口ポート３
１Ｃを接続する状態で介装され、導尿チューブ５２の一
端にバルーンカテーテル５３が接続され、導尿チューブ
５２の他端には蓄尿バック５４が接続されている。この
尿採取装Ｗ１５１は、レバー３６の矢示Ｂ方向の回転操
作により第２の流体口ポート３１Ｂから尿を採取可七と
している。すなわち、この尿採取装置５１は、導尿チュ
ーブ５２から蓄尿へツク５４に尿を流入させ、かつ第２
の流体口ポー）３１Ｂより尿の採取を行う状態、導尿チ
ューブ５２を封止させ、かつ第２の流体口ポート３１Ｂ
より蓄尿バック５４内の尿の採取を行う状態、蓄尿バッ
ク。(2) Specific Function of the Invention The medical stopcocks 30 and 50 shown in FIGS. 1 and 3 can be applied, for example, to the urine collection device 51 shown in FIG. 4. The medical stopcock 30 has a first fluid port 31A and a third fluid port 3 in the middle part of the urine drainage tube 52.
A balloon catheter 53 is connected to one end of the urine drainage tube 52, and a urine storage bag 54 is connected to the other end of the urine drainage tube 52. This urine collection device W151 allows urine to be collected from the second fluid port 31B by rotating the lever 36 in the direction of arrow B. That is, this urine collection device 51 allows urine to flow from the urine drainage tube 52 into the urine collection tube 54, and
A state in which urine is collected from the second fluid port 31B, the urine drainage tube 52 is sealed, and the second fluid port 31B
A state in which urine is collected from the urine storage bag 54, the urine storage bag.
５４を封止させ、かつ第２の流体口ポート３１Ｂより導
尿チューブ５２より流入される尿の採取を行う状態、第
２の流体口ポー）３１Ｂを封止させ、かつ導尿チューブ
５２から蓄尿バック５４に尿を流入させる状態を、それ
ぞれレバー３６の切換によりそれ゛ぞれ選択することが
できる。尿採取装置５１は、上記いずれの切換状態にお
いても外部空間との遮断が可能とされる。A state in which the second fluid port 31B is sealed and urine is collected from the urine drainage tube 52 through the second fluid port 31B. The state in which urine is allowed to flow into the bag 54 can be selected by switching the lever 36. The urine collection device 51 can be isolated from the external space in any of the above switching states.
■、発明の具体的効果
以上のように本発明は、ホルダと、該ホルダに嵌合する
コックとからなる医療用活栓において。(2) Specific Effects of the Invention As described above, the present invention provides a medical stopcock comprising a holder and a cock that fits into the holder.
コックの基体を比較的硬質な樹脂によって形成し、該基
体のホルダに基体の嵌合部分の全周部に一体に回転する
、比較的軟質な弾性を有する樹脂からなるすり合わせ部
憂形成するようにしだので、コックの回転機能を損なう
ことなく、コックとホルダの密着性を簡易な構造により
向上させることが可能となる。The base of the cock is made of a relatively hard resin, and the holder of the base is formed with a fitting part made of a relatively soft elastic resin that rotates integrally around the entire circumference of the fitting part of the base. Therefore, it is possible to improve the adhesion between the cock and the holder with a simple structure without impairing the rotating function of the cock.
また、本発明に係る医療用活栓は、前記すり合わせ部を
オレフィン系エラストマー又はそれを配合したため、コ
ックの回転機能を損なうことなく、コックとホルダの密
着性をより向上することが可能となる。Further, in the medical stopcock according to the present invention, since the abutment portion is made of an olefin elastomer or blended with the same, it is possible to further improve the adhesion between the stopcock and the holder without impairing the rotational function of the stopcock.
また、本発明に係る医療用活栓は、前記すり合わせ部を
スチレン系エラストマー又はそれを配合したため、コッ
クの回転機能を損なうことなく。Furthermore, in the medical stopcock according to the present invention, since the abutment portion is made of styrene elastomer or blended with styrene elastomer, the rotating function of the stopcock is not impaired.
コックとホルダの密着性をより向上することが可能とな
る。It becomes possible to further improve the adhesion between the cock and the holder.
また１本発明に係る医療用活栓は、前記すり合わせ部の
ショアＣ硬度を２０〜４０としたため。Further, in the medical stopcock according to the present invention, the Shore C hardness of the abutting portion is 20 to 40.
コックの回転機能を損なうことなく、コックとホルダの
密着性をより向上することが可能となる。It is possible to further improve the adhesion between the cock and the holder without impairing the rotational function of the cock.
また、本発明に係る医療用活栓は、ホルダとコックの嵌
合面がＱ、５ｋｇ／ ｃｒｎ’の空気圧力で漏れずに、
かつ初期摺動抵抗が１．０ｋｇ／ｃｍ以下としたため、
コックの回転機能を損なうことなく、コックとホルダの
密着性をより向上することが可能となる。そしてコック
の外径とホルダの内径との差が０．２〜０．２４ｍ■で
あるのが効果が著しい。In addition, the medical stopcock according to the present invention has a fitting surface between the holder and the cock that does not leak under an air pressure of Q, 5 kg/crn'.
And because the initial sliding resistance was 1.0 kg/cm or less,
It is possible to further improve the adhesion between the cock and the holder without impairing the rotational function of the cock. The effect is remarkable when the difference between the outer diameter of the cock and the inner diameter of the holder is 0.2 to 0.24 m.
また、本発明に係る医療用活栓は、ホルダおよびコック
をポリプロピレンとし、すり合わせ部をスチレン系エラ
ストマーとしたため、耐ガンマ線性能がよく、ガンマ線
により滅菌処理しても化学的に安定で、医療用として安
全度の高いものとすることが可能となる。In addition, the medical stopcock according to the present invention is made of polypropylene for the holder and cock, and styrene-based elastomer for the fitting part, so it has good gamma ray resistance and is chemically stable even after sterilization with gamma rays, making it safe for medical use. It becomes possible to make it highly accurate.
第１図は本発明の一実施例に係る医療用活栓を示す一部
破断の正面図、第２図は第１図の■−ＩＩ線に沿う断面
図、基３図は本発明の他の例に係る医療用活栓を示す第
２図同様の断面図、第４図は医療用活栓を尿採取装置に
適用した状態を示す正面図、第５図は従来例に係る医療
用活栓な示す一部破断の正面図、第６図は第５図の■−
■線に沿う断面図である。
ｉｏ、３０．５０・・・医療用活栓、１２．３２・・・
ホルダ、１５．３５・・・コック、３９・・・基体、４
０・・・すり合わせ部FIG. 1 is a partially cutaway front view showing a medical stopcock according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line ■-II in FIG. 1, and FIG. FIG. 4 is a sectional view similar to FIG. 2 showing a medical stopcock according to an example, FIG. 4 is a front view showing a state in which the medical stopcock is applied to a urine collection device, and FIG. 5 is a diagram showing a medical stopcock according to a conventional example. The front view of the broken part, Figure 6 is the part shown in Figure 5.
■It is a sectional view along the line. io, 30.50...Medical stopcock, 12.32...
Holder, 15.35... Cock, 39... Base, 4
0... Grinding part
Claims (7)
医療用活栓において、コックの基体を比較的硬質な樹脂
によって形成し、該基体のホルダに基体の嵌合部分の全
周部に一体に回転する、比較的軟質な弾性を有する樹脂
からなるすり合わせ部を形成したことを特徴とする医療
用活栓。(1) In a medical stopcock consisting of a holder and a cock that fits into the holder, the base of the cock is made of relatively hard resin, and the holder of the base is integrated with the entire circumference of the fitting part of the base. 1. A medical stopcock characterized by forming a sliding part made of a relatively soft and elastic resin that rotates.
又はそれを配合したことを特徴とする特許請求の範囲第
１項に記載の医療用活栓。(2) The medical stopcock according to claim 1, wherein the rubbing portion is made of an olefin elastomer or blended with an olefin elastomer.
はそれを配合したことを特徴とする特許請求の範囲第１
項に記載の医療用活栓。(3) The rubbing portion is made of a styrene-based elastomer or blended with it.
Medical stopcocks as described in section.
である特許請求の範囲の第１項記載の医療用活栓。(4) The Shore C hardness of the rubbing part is 20 to 40.
A medical stopcock according to claim 1.
の空気圧力で漏れずに、かつ初期摺動抵抗が１．０ｋｇ
／ｃｍ以下である特許請求の範囲第１項記載の医療用活
栓。(5) The mating surface of the holder and cock is 0.5 kg/cm^2
No leakage under air pressure of 1.0kg, and initial sliding resistance is 1.0kg
2. The medical stopcock according to claim 1, which has a diameter of /cm or less.
．２４ｍｍである特許請求の範囲第５項記載の医療用活
栓。(6) The difference between the outer diameter of the cock and the inner diameter of the holder is 0.2 to 0.
．． The medical stopcock according to claim 5, which has a diameter of 24 mm.
されてなる特許請求の範囲第１項記載の医療用活栓。(7) The medical stopcock according to claim 1, wherein the holder and the cock are sterilized by gamma rays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59188119A JPS6168045A (en) | 1984-09-10 | 1984-09-10 | Medical stopcock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59188119A JPS6168045A (en) | 1984-09-10 | 1984-09-10 | Medical stopcock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6168045A true JPS6168045A (en) | 1986-04-08 |
| JPH0362426B2 JPH0362426B2 (en) | 1991-09-25 |
Family
ID=16218038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59188119A Granted JPS6168045A (en) | 1984-09-10 | 1984-09-10 | Medical stopcock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6168045A (en) |
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| JP2014228118A (en) * | 2013-05-27 | 2014-12-08 | 三菱電機株式会社 | Ball valve for feed water supply and water heater |
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| USD923812S1 (en) | 2019-01-16 | 2021-06-29 | West Pharma. Services IL, Ltd. | Medication mixing apparatus |
| JP1648075S (en) | 2019-01-17 | 2019-12-16 | ||
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58137163U (en) * | 1982-03-10 | 1983-09-14 | 大阪瓦斯株式会社 | hot water shutoff valve |
-
1984
- 1984-09-10 JP JP59188119A patent/JPS6168045A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58137163U (en) * | 1982-03-10 | 1983-09-14 | 大阪瓦斯株式会社 | hot water shutoff valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012247038A (en) * | 2011-05-30 | 2012-12-13 | Lixil Corp | Cylinder type valve device |
| JP2014228118A (en) * | 2013-05-27 | 2014-12-08 | 三菱電機株式会社 | Ball valve for feed water supply and water heater |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0362426B2 (en) | 1991-09-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |