JPH0732766B2 - Blood collection needle - Google Patents
Blood collection needleInfo
- Publication number
- JPH0732766B2 JPH0732766B2 JP2256390A JP25639090A JPH0732766B2 JP H0732766 B2 JPH0732766 B2 JP H0732766B2 JP 2256390 A JP2256390 A JP 2256390A JP 25639090 A JP25639090 A JP 25639090A JP H0732766 B2 JPH0732766 B2 JP H0732766B2
- Authority
- JP
- Japan
- Prior art keywords
- hub
- blood collection
- canula
- transparent
- hole
- 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 - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/15003—Source of blood for venous or arterial blood
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
- A61B5/150213—Venting means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150389—Hollow piercing elements, e.g. canulas, needles, for piercing the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150473—Double-ended needles, e.g. used with pre-evacuated sampling tubes
- A61B5/150496—Details of construction of hub, i.e. element used to attach the double-ended needle to a piercing device or sampling device
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150572—Pierceable protectors, e.g. shields, caps, sleeves or films, e.g. for hygienic purposes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150732—Needle holders, for instance for holding the needle by the hub, used for example with double-ended needle and pre-evacuated tube
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
- A61B5/154—Devices using pre-evacuated means
- A61B5/1545—Devices using pre-evacuated means comprising means for indicating vein or arterial entry
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、採血針、特に、一検体源と予め陰圧にされた
検体貯留室とを連通させて一または複数回の検体採取を
可能ならしめる採血針に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention makes it possible to collect one or more specimens by connecting a blood collection needle, in particular, one specimen source and a specimen storage chamber that has been made negative pressure in advance. Concerning the blood collection needle that can be trained.
従来、臨床検査を行うにあたり、１回の穿刺で複数回の
血液採取を可能ならしめる採血ユニットが頻繁に使用さ
れている。このユニットは、例えば、第５図に示される
ように、ハブ110の両端にそれぞれ設けられたカヌラ12
0,130およびカヌラ130を包囲するようにとりつけられた
弾性チップを備える採血針100と、この採血針100を固着
する筒状のホルダ200と、このホルダ200の内部に挿着さ
れる予め陰圧にされた採血管300で構成される。そし
て、採血に際して、まず、ホルダ200と採血針100とを予
め組み立てて一体化し、カヌラ120側を静脈血管内に穿
刺し静脈血管を確保する。しかる後、ホルダ内部に採血
管300を押し込み、カヌラ130によりゴム栓310を貫通せ
しめることにより、採血が開始され、採血管300内部の
圧力と静脈圧とがバランスされた状態で採血が完了す
る。2. Description of the Related Art Conventionally, in performing a clinical test, a blood collection unit that allows multiple blood collections with one puncture is frequently used. This unit is provided, for example, as shown in FIG. 5, with a canula 12 provided at each end of the hub 110.
0, 130 and canula 130, a blood collection needle 100 provided with an elastic tip attached so as to surround it, a cylindrical holder 200 for fixing the blood collection needle 100, and a negative pressure preliminarily attached to the inside of the holder 200. Blood collection tube 300. When collecting blood, first, the holder 200 and the blood collecting needle 100 are preassembled and integrated, and the canula 120 side is punctured into the venous blood vessel to secure the venous blood vessel. Thereafter, the blood collection tube 300 is pushed into the holder, and the rubber stopper 310 is penetrated by the canula 130 to start blood collection, and the blood collection is completed in a state where the pressure inside the blood collection tube 300 and the venous pressure are balanced.
しかしながら、このような従来の真空採血システムで
は、静脈穿刺時にカヌラ内部および弾性チップ内部の気
体の逃げ場所がなく、いわゆるフラッシュバックを確認
することが不可能である。そのため、時として、静脈を
外れてカヌラが体内に入った状態のままで採血を開始し
てしまうという危険性がある。However, in such a conventional vacuum blood collection system, there is no escape place for gas inside the cannula and the elastic tip during venipuncture, and so-called flashback cannot be confirmed. Therefore, there is a risk that the blood will start to be collected while leaving the vein and leaving the canula in the body.
このような問題を解決するために、特公平２−21809公
報には、すでにフラッシュバックを確認できる機構をそ
なえた針組立体が提案されている。In order to solve such a problem, Japanese Patent Publication No. 21809/1990 proposes a needle assembly having a mechanism for confirming flashback.
しかしながら、このものはハブ内部に設けられた連通路
としての通気装置と、該装置内の連通路に挿入され、水
分により膨潤する材質特性を有する環状の圧縮されたス
リーブを備える等、その構成が極めて複雑であり、廉価
に量産できないという問題がある。また、このものでは
血液採取時にハウジング室内に収納されたスリーブに陰
圧がかかり外部とのシールが不十分となり安全性に欠け
る。また、デッドボリュームも多い。However, this one is provided with a ventilation device as a communication passage provided inside the hub, and an annular compressed sleeve having a material characteristic of being swollen by moisture and inserted into the communication passage in the device. There is a problem that it is extremely complicated and cannot be mass-produced at low cost. Further, in this case, negative pressure is applied to the sleeve accommodated in the housing chamber during blood collection, and the seal with the outside is insufficient, resulting in poor safety. There are also many dead volumes.
本発明は上記課題を解決するためになされたものであっ
て、その目的は極めて簡単な構成でしかも確実にフラッ
シュバックが確認できる機構を有する採血針を提供する
ことにある。The present invention has been made to solve the above problems, and an object of the present invention is to provide a blood collection needle having an extremely simple structure and a mechanism capable of surely confirming flashback.
このような課題を解決するために、本発明は、略筒状の
ハブと、該ハブの軸方向両端からそれぞれ延出し、かつ
内部通路が連通した鋭利な先端を有するカヌラと、該カ
ヌラの一方の延出端を包囲するように前記ハブに液密に
嵌着された有底筒状の弾性チップとを有し、前記ハブは
カヌラを挿入し固定するための軸方向連通孔と、前記有
底筒状の弾性チップの内腔部と外部雰囲気とを連通させ
る通気孔と、該通気孔の外部口部に固着され、気体を通
過させ、液体を通過させない細孔を有する通気性フィル
タとを備えるとともに前記ハブは、透明ないし半透明の
材質で形成されており、前記通気孔の外部雰囲気と連通
する外部口部は、採血ユニットの１ユニットであるホル
ダーとの接続部よりも先端側に形成されるように構成し
た。In order to solve such a problem, the present invention provides a substantially tubular hub, a canula that extends from both axial ends of the hub, and has a sharp tip that communicates with an internal passage, and one of the canula. A bottomed cylindrical elastic tip that is liquid-tightly fitted to the hub so as to surround the extended end of the hub, and the hub has an axial communication hole for inserting and fixing a canula, and the hub. A ventilation hole that connects the inner cavity of the bottom-cylindrical elastic tip and the external atmosphere, and a ventilation filter that is fixed to the outer opening of the ventilation hole and has pores that allow gas to pass and liquids not to pass. In addition, the hub is made of a transparent or translucent material, and an external opening portion of the vent hole communicating with an external atmosphere is formed at a tip end side of a connection portion with a holder which is one unit of the blood collection unit. Configured to be.
以下、本発明の採血針の第１実施例を第１図に基づいて
説明する。Hereinafter, a first embodiment of the blood collection needle of the present invention will be described with reference to FIG.
本発明の採血針１は、略筒状のハブ10と、このハブ10の
軸方向両端からそれぞれ延出したカヌラ41,45と、カヌ
ラ45の一方の延出端を包囲するように前記ハブ10の一端
部に嵌着された有底筒状の弾性チップ50とを有してい
る。The blood collection needle 1 of the present invention includes a hub 10 having a substantially tubular shape, canulas 41 and 45 extending from both axial ends of the hub 10, and the hub 10 so as to surround one extending end of the canula 45. And a bottomed cylindrical elastic tip 50 fitted to one end of the.
前記ハブ10は、略筒状形状をなし、その内部には中心軸
方向に貫通された連通孔13と、前記有底筒状の弾性チッ
プ50の内腔部Ｅと外部雰囲気とを連通させる通気孔19と
を有している。The hub 10 has a substantially cylindrical shape, and has a communication hole 13 penetrating therethrough in the central axis direction, a communication hole 13 for communicating the inner cavity portion E of the bottomed cylindrical elastic tip 50 with the external atmosphere. And pores 19.
連通孔13は、カヌラ41,45を挿入し固定するための孔で
あり、カヌラ41,45の外径よりやや大きめの内径とされ
る。通常は、カヌラの径差が０〜0.3mm程度である。The communication hole 13 is a hole for inserting and fixing the canulas 41 and 45, and has an inner diameter slightly larger than the outer diameter of the canulas 41 and 45. Usually, the diameter difference of the canula is about 0 to 0.3 mm.
通気孔19は、その一端19aがハブ10の後端部に位置し、
弾性チップ50の内腔部Ｅと連通するように設置され、通
気孔19の他端19bである外部口部は、外部雰囲気に連通
するように形成されるとともに、採血ユニットの１ユニ
ットであるホルダーとの接続部よりも先端側（カヌラ41
方向を先端側とする）のハブ10の胴部外周に形成され
る。すなわち、本実施例において、通気孔19は、前記軸
方向連通孔13と一定の隔壁21を隔てた状態で一端19aか
ら軸方向に向けて所定長さ穿設された後、外周方向に向
きを変えて外部に穿設されたＬ形状をなしている。The vent hole 19 has one end 19a located at the rear end of the hub 10,
A holder that is installed so as to communicate with the inner cavity portion E of the elastic tip 50, has an outer opening portion that is the other end 19b of the ventilation hole 19 formed so as to communicate with the outside atmosphere, and is one unit of a blood sampling unit. The tip side from the connection with (Canula 41
It is formed on the outer circumference of the body of the hub 10 (the direction is the tip side). That is, in the present embodiment, the vent hole 19 is formed in a predetermined length from the one end 19a in the axial direction in a state of separating the axial communication hole 13 and the constant partition wall 21, and then is oriented in the outer peripheral direction. Instead, it has an L-shape that is provided outside.
通気孔19の断面形状は、通常は円形形状であるが、これ
に限らず、種々の形状が採血可能である。通気孔19の径
は、0.2〜2mm程度である。The cross-sectional shape of the vent hole 19 is usually a circular shape, but is not limited to this, and various shapes can be used for blood collection. The diameter of the vent hole 19 is about 0.2 to 2 mm.
このような通気孔19の外部雰囲気に連通する他端19bに
は通気性フィルタ７が超音波融着、熱融着等によって被
着される。この通気性フィルタ７は、気体を通過させ、
液体を通過させない細孔を有するものであり、このもの
は、撥水性を有するものが良く、テフロン等のフッソ系
樹脂またはPP,PE等のオレフィン系樹脂を含有して構成
される。The breathable filter 7 is attached to the other end 19b communicating with the outside atmosphere of the vent hole 19 by ultrasonic fusion, heat fusion, or the like. This breathable filter 7 allows gas to pass therethrough,
It has pores that do not allow liquid to pass through, and it preferably has water repellency and is constituted by containing a fluorine-based resin such as Teflon or an olefin-based resin such as PP or PE.
さらに、ハブ10は、その本体胴部の略中央部外周にねじ
部15が設けられ、このねじ部15に採血ユニットの１ユニ
ットであるホルダ200の口部が螺合されるようになって
いる。さらに、ハブ10の後端部には弾性チップ50を係止
させるための係止部17が形成されている。係止部17は、
弾性チップ50が容易に離脱出来ないような形状であれ
ば、特に限定されるものではなく、本実施例の場合、そ
の一例として顎状に突出した係止突起17aを備えてい
る。Further, the hub 10 is provided with a screw portion 15 on the outer periphery of the substantially central portion of its main body, and the mouth portion of the holder 200, which is one unit of the blood sampling unit, is screwed into the screw portion 15. . Further, a locking portion 17 for locking the elastic tip 50 is formed at the rear end of the hub 10. The locking portion 17 is
The elastic tip 50 is not particularly limited as long as it has a shape such that it cannot be easily removed, and in the case of the present embodiment, as one example thereof, a locking projection 17a protruding in a jaw shape is provided.
このような係止部に係合される弾性チップ50は、底部51
を有する筒状形状をなし、一方のカヌラ45の延出端を包
囲するスペースとしての内腔部Ｅを有する。この弾性チ
ップ50は、採血時にカヌラ45によって、一時的に穿孔さ
れた後も、再び、再シールできるような適度の弾性が要
求される。用いられる材質としては、合成ゴム、エラス
トマー等が挙げられる。なかでも、フラッシュバックが
確認できるように透明ないし半透明な特性を有するもの
が好ましい。このような弾性チップの寸法は、通常、長
さ10〜30mm程度、外径１〜3mm程度である。The elastic tip 50 engaged with such a locking portion has a bottom portion 51.
And has an inner cavity portion E as a space that surrounds the extending end of one canula 45. The elastic tip 50 is required to have appropriate elasticity so that it can be resealed again after being temporarily perforated by the canula 45 at the time of blood collection. Examples of the material used include synthetic rubber and elastomer. Among them, those having a transparent or translucent property so that flashback can be confirmed are preferable. The dimensions of such an elastic tip are usually about 10 to 30 mm in length and about 1 to 3 mm in outer diameter.
ところで、前記ハブ10の連通孔13に挿入されるカヌラ41
の鋭利な先端部およびカヌラ45の鋭利な先端部は、検体
採取時に、それぞれ、静脈血管内の血液等の一検体源お
よびいわゆる真空採血管等の検体貯留室に穿刺される。
カヌラ41およびカヌラ45は別体であってもよいし、連続
・一体化されていてもよい。このようなカヌラ41,45
は、連通孔13に挿入された状態で各種接着剤等によって
固着される。なお、通常前記ハブ10は、通常、射出成形
によって成形され、フラッシュバックの確認を容易にす
るためにも、透明ないし半透明の材質とする。具体的に
は、ポリプロピレン、ポリエチレン、ポリスチレン、ポ
リエチレンテレフタレート、ポリメチルペンテン、ポリ
カーボネート、ポリアクリロニトリル、ABS等の樹脂材
料が挙げられる。ハブ10の寸法は、長さ10〜30mm、外径
５〜15mm程度である。By the way, a canula 41 inserted into the communication hole 13 of the hub 10
The sharp tip end of the canula 45 and the sharp tip end of the canula 45 are punctured into a sample source such as blood in a venous blood vessel and a sample storage chamber such as a so-called vacuum blood collection tube when the sample is collected.
The canula 41 and the canula 45 may be separate bodies, or may be continuous and integrated. Cannula like this 41,45
Is fixed by various adhesives and the like while being inserted into the communication hole 13. The hub 10 is usually formed by injection molding, and is made of a transparent or translucent material to facilitate confirmation of flashback. Specific examples thereof include resin materials such as polypropylene, polyethylene, polystyrene, polyethylene terephthalate, polymethylpentene, polycarbonate, polyacrylonitrile, and ABS. The hub 10 has a length of 10 to 30 mm and an outer diameter of 5 to 15 mm.
次いで、本発明の採血針の第二実施例を第２図に基づい
て説明する。Next, a second embodiment of the blood collecting needle of the present invention will be described with reference to FIG.
第２実施例の採血針２が前記第１実施例のそれと根本的
に異なるのは、ハブ内部に穿設された通気孔の構成であ
る。すなわち、第２実施例の通気孔69は、その一部、特
に、軸方向に穿設された部分が軸方向連通孔63に連接し
て形成されている。従って、カヌラを連通孔63に挿入し
た時にカヌラの外周の一部が連通孔69の一部を構成す
る。The blood collection needle 2 of the second embodiment is fundamentally different from that of the first embodiment in the configuration of the vent hole formed inside the hub. That is, the ventilation hole 69 of the second embodiment is formed such that a part thereof, particularly, a portion formed in the axial direction is connected to the axial communication hole 63. Therefore, when the canula is inserted into the communication hole 63, a part of the outer circumference of the canula constitutes a part of the communication hole 69.
このような構成とすることにより、弾性チップ50を係止
させるための係止部67の外径を小さくすることが出来る
とともに、連通孔を射出成形で形成するのが容易にな
る。With such a structure, the outer diameter of the locking portion 67 for locking the elastic tip 50 can be reduced, and the communication hole can be easily formed by injection molding.
上述してきた本発明の採血針の作用を説明する。第３図
に示されるように、採血針１のハブ10の外周に設けられ
たねじ部15がホルダ200の口部に螺合され、採血針とホ
ルダ200とが一体化される。この状態で採血針の第一の
カヌラ41が血管Ｖ内に穿刺される。すると、血管Ｖ内の
血液はカヌラ41の内孔部からカヌラ45の内孔部を経て、
弾性チップの内腔部Ｅ内に流入し、さらに通気孔の内部
に上昇していき、通気性フィルタ７の所で止まる。この
とき、ハブ10を透明ないし半透明の材質で形成しておく
ことによってフラッシュバックの確認が容易におこなえ
る。The operation of the blood collection needle of the present invention described above will be described. As shown in FIG. 3, the screw portion 15 provided on the outer periphery of the hub 10 of the blood collecting needle 1 is screwed into the mouth portion of the holder 200, and the blood collecting needle and the holder 200 are integrated. In this state, the first canula 41 of the blood collecting needle is punctured into the blood vessel V. Then, the blood in the blood vessel V passes from the inner hole of the canula 41 to the inner hole of the canula 45,
It flows into the inner cavity portion E of the elastic tip, rises further inside the ventilation hole, and stops at the ventilation filter 7. At this time, the flashback can be easily confirmed by forming the hub 10 with a transparent or translucent material.
本発明者らが実際にフラッシュバックの確認実験をした
ところ、5cm aq.程度の低い静脈圧でもフラッシュバッ
クか確認された。すなわち、本発明の採血針は、極めて
簡単な構成でしかも確実にフラッシュバックが確認でき
るという効果を奏する。When the present inventors actually conducted a flashback confirmation experiment, it was confirmed that flashback occurred even with a low venous pressure of about 5 cm aq. That is, the blood collection needle of the present invention has an effect that flashback can be surely confirmed with an extremely simple structure.
第１図は本発明の第一実施例としての採血針の部分断面
図、第２図は本発明の第二実施例としての採血針の部分
断面図、第３図は本発明の採血針の作用を説明するため
の概略図、第４図は採血時の状態を説明するための断面
図、第５図は採血ユニットの分解斜視図を示す。 1,2……採血針、７……通気性フィルタ、 10,60……ハブ、13,63……連通孔、 19,69……通気孔、41……第一のカヌラ、 45……第二のカヌラ、50……弾性チップ、 Ｅ……内腔部。FIG. 1 is a partial sectional view of a blood collecting needle as a first embodiment of the present invention, FIG. 2 is a partial sectional view of a blood collecting needle as a second embodiment of the present invention, and FIG. 3 is a sectional view of a blood collecting needle of the present invention. FIG. 4 is a schematic view for explaining the action, FIG. 4 is a cross-sectional view for explaining a state during blood collection, and FIG. 5 is an exploded perspective view of the blood collection unit. 1,2 …… Blood collection needle, 7 …… Ventilation filter, 10,60 …… Hub, 13,63 …… Communication hole, 19,69 …… Ventilation hole, 41 …… First canula, 45 …… No. Ninokanura, 50 ... Elastic tip, E ... Lumen.
Claims (5)
それぞれ延出し、かつ内部通路が連通した鋭利な先端を
有するカヌラと、該カヌラの一方の延出端を包囲するよ
うに前記ハブに液密に嵌着された有底筒状の弾性チップ
とを有し、 前記ハブはカヌラを挿入し固定するための軸方向連通孔
と、前記有底筒状の弾性チップの内腔部と外部雰囲気と
を連通させる通気孔と、該通気孔の外部口部に固着さ
れ、気体を通過させ、液体を通過させない細孔を有する
通気性フィルタとを備えるとともに前記ハブは、透明な
いし半透明の材質で形成されており、 前記通気孔の外部雰囲気と連通する外部口部は、採血ユ
ニットの１ユニットであるホルダーとの接続部よりも先
端側に形成されていることを特徴とする採血針。1. A substantially cylindrical hub, a canula extending from both ends in the axial direction of the hub and having a sharp tip communicating with an internal passage, and surrounding one extending end of the canula. The hub has a bottomed cylindrical elastic tip fitted in a liquid-tight manner, the hub has an axial communication hole for inserting and fixing a canula, and an inner cavity of the bottomed tubular elastic tip. The hub is transparent or semi-transparent, and the hub is transparent or semi-transparent, and a ventilation hole fixed to the external opening of the ventilation hole, the ventilation hole having pores that allow gas to pass therethrough and liquid not to pass therethrough. The blood sampling is characterized by being formed of a transparent material, and an external opening portion communicating with the external atmosphere of the vent hole is formed on a tip side of a connection portion with a holder which is one unit of the blood sampling unit. needle.
で形成することを特徴とする請求項１記載の採血針。2. The blood collection needle according to claim 1, wherein the elastic tip is made of a transparent or translucent material.
孔に連接して形成されていることを特徴とする請求項１
または請求項２に記載の採血針。3. The vent hole is formed so that a part thereof is connected to the axial communication hole.
Alternatively, the blood collection needle according to claim 2.
隔壁を設けて形成されていることを特徴とする請求項１
または請求項２に記載の採血針。4. The vent hole is formed by providing a constant partition wall with the axial communication hole.
Alternatively, the blood collection needle according to claim 2.
はオレフィン系樹脂を含有することを特徴とする請求項
１ないし請求項４のいずれかに記載の採血針。5. The blood collection needle according to claim 1, wherein the breathable filter contains a fluorine-based resin or an olefin-based resin.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2256390A JPH0732766B2 (en) | 1990-09-26 | 1990-09-26 | Blood collection needle |
| US07/767,036 US5222502A (en) | 1990-09-26 | 1991-09-24 | Blood collecting needle |
| AU84810/91A AU647180B2 (en) | 1990-09-26 | 1991-09-25 | Blood collecting needle |
| EP91402582A EP0478459B1 (en) | 1990-09-26 | 1991-09-26 | Blood collecting needle |
| DE69121037T DE69121037T2 (en) | 1990-09-26 | 1991-09-26 | Blood collection needle |
| US08/032,998 US5303713A (en) | 1990-09-26 | 1993-03-18 | Blood collecting needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2256390A JPH0732766B2 (en) | 1990-09-26 | 1990-09-26 | Blood collection needle |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8118419A Division JP2994588B2 (en) | 1996-04-16 | 1996-04-16 | Blood collection needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04132541A JPH04132541A (en) | 1992-05-06 |
| JPH0732766B2 true JPH0732766B2 (en) | 1995-04-12 |
Family
ID=17292013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2256390A Expired - Fee Related JPH0732766B2 (en) | 1990-09-26 | 1990-09-26 | Blood collection needle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0732766B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4007681B2 (en) * | 1997-12-18 | 2007-11-14 | 積水化学工業株式会社 | Winged blood collection needle |
| JP3610568B2 (en) * | 1998-11-09 | 2005-01-12 | ニプロ株式会社 | Blood collection needle |
| US6533760B2 (en) | 2000-05-02 | 2003-03-18 | Becton, Dickinson And Company | Flashback blood collection needle |
| US6712792B2 (en) | 2001-05-02 | 2004-03-30 | Becton, Dickinson And Company | Flashback blood collection needle |
| JP4007218B2 (en) * | 2003-03-20 | 2007-11-14 | ニプロ株式会社 | Blood collection needle |
| US8603009B2 (en) | 2008-03-07 | 2013-12-10 | Becton, Dickinson And Company | Flashback blood collection needle |
| JP6520468B2 (en) * | 2015-06-29 | 2019-05-29 | ニプロ株式会社 | Medical connector |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1009110A (en) * | 1971-04-30 | 1977-04-26 | Abbott Laboratories | Blood collecting assembly |
| US4418703A (en) * | 1981-07-30 | 1983-12-06 | Becton Dickinson And Company | Multiple sample needle assembly |
| US4398544A (en) * | 1981-10-15 | 1983-08-16 | Becton Dickinson And Company | Single and multiple sample needle assembly with vein entry indicator |
| JPS58183172A (en) * | 1982-04-20 | 1983-10-26 | テルモ株式会社 | Blood sampling or syringe needle and production thereof |
| JPS58188460A (en) * | 1982-04-27 | 1983-11-02 | テルモ株式会社 | Medical needle for blood sampling and syringe |
| JPS58212454A (en) * | 1982-06-04 | 1983-12-10 | テルモ株式会社 | Medical needle |
| US4416290A (en) * | 1982-08-30 | 1983-11-22 | Becton Dickinson And Company | Multiple sample needle assembly with vein indication |
| JPS59131360A (en) * | 1983-01-18 | 1984-07-28 | 株式会社 日本メデイカル・サプライ | Fixing of filter |
| ES533509A1 (en) * | 1983-07-18 | 1985-09-01 | Abbott Lab | Catheter flashback indicator. |
| JPS6030233U (en) * | 1983-08-05 | 1985-03-01 | 日本テクニクス株式会社 | Injection needle for infusion |
| JPS6030232U (en) * | 1983-08-05 | 1985-03-01 | 日本テクニクス株式会社 | Injection needle for infusion |
| SE8503583L (en) * | 1985-07-24 | 1987-01-25 | Mediplast Ab | DEVICE FOR TRANSFERING A SUBSTANCE BETWEEN ATMINSTONE TWO KERL IN A CLOSED SYSTEM |
| JPS6247344A (en) * | 1985-08-28 | 1987-03-02 | テルモ株式会社 | Air passing amount control sintered filter |
| JPH0221809A (en) * | 1988-07-09 | 1990-01-24 | Shibuya Kogyo Co Ltd | Article processing device |
| JPH02182269A (en) * | 1989-01-09 | 1990-07-16 | Terumo Corp | Medical bottle needle equipped with drip cylinder |
| JPH02224764A (en) * | 1989-02-28 | 1990-09-06 | Nippon Medical Supply Corp | Collared needle for liquid transfusion/blood transfusion |
-
1990
- 1990-09-26 JP JP2256390A patent/JPH0732766B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04132541A (en) | 1992-05-06 |
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