JPH08187286A - Intravascular indwelling needle with separate take out opening for inner tube - Google Patents

Intravascular indwelling needle with separate take out opening for inner tube

Info

Publication number
JPH08187286A
JPH08187286A JP6331969A JP33196994A JPH08187286A JP H08187286 A JPH08187286 A JP H08187286A JP 6331969 A JP6331969 A JP 6331969A JP 33196994 A JP33196994 A JP 33196994A JP H08187286 A JPH08187286 A JP H08187286A
Authority
JP
Japan
Prior art keywords
route
structure
inner cylinder
inner tube
valve
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.)
Pending
Application number
JP6331969A
Other languages
Japanese (ja)
Inventor
Ikufumi Yamada
郁史 山田
Original Assignee
Ikufumi Yamada
郁史 山田
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to JP6-312296 priority Critical
Priority to JP31229694 priority
Application filed by Ikufumi Yamada, 郁史 山田 filed Critical Ikufumi Yamada
Priority to JP6331969A priority patent/JPH08187286A/en
Publication of JPH08187286A publication Critical patent/JPH08187286A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To provide an indwelling needle with reduced chances to be contaminated by blood backflow when an inner tube is taken out, by installing an output route separate from an outer tube and forming a configuration to prevent the backflow of blood, etc., in the take out route of the inner tube. CONSTITUTION: This intravascular indwelling needle comprises a route 2 into which an inner tube is inserted and another route 4 into which an outer tube is inserted. The route 2 and the route 4 are joined. The route 2 has a valve-like structure to close the route 2 when the inner tube 1 is taken out, but the valve- like structure 5 is not necessarily to be a valve, and it is also allowed to be an elastic body such as rubber to close the route 2 when the inner tube 1 is taken out. This structure is formed at a branch part from the route 4 so as not to collect air and preferably has a shape without stagnating the transfusion liquid.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】[産業上の利用分野]本発明は、医療分野で血管を確保する際に用いる [0001] [FIELD OF THE INVENTION The present invention is used when securing the vessel in the medical field

【0002】[従来の技術]従来のカテラン針は、内筒を抜いた後に、外筒に点滴等をつなぐ構造になっており、内筒を抜く際、血管内より血液が逆流することがあり、針を刺した者が血液で汚染される機会も多かった。 [0002] [Prior Art] Conventional Cattelan needle, after disconnect the inner cylinder, has a structure that connects the drip or the like to the outer cylinder, when removing the inner tube, may blood from a blood vessel flows back , opportunity for a person who stabbed the needle is contaminated with blood there were many.

【0003】[本発明が解決しようとする課題]内筒を抜く際に、血液が逆流しにくくし、汚染機会を減らすことである。 [0003] When removing the inner cylinder [Problem to try to present invention is solved, the blood is not easily flow back, it is to reduce the contamination opportunities.

【0004】[課題を解決するための手段]内筒を抜くルートと、点滴等をつなぐ外筒のルートを別にし、更に内筒を抜くルートに血液等が出てきにくい構造を設ける。 [0004] and the root removing the inner tube [Means for Solving the Problems], apart from the root of the outer tube connecting the drip or the like, provided with a hard structure comes out blood like a route to pull the inner cylinder further.

【0005】[作用]この血管内留置針を用いることにより、血液の逆流を防止する。 [0005] [Operation] By using the intravascular indwelling needle, to prevent the backflow of blood.

【0006】[実施例]図1のように、血管内留置針は、内筒1の入るルート2および、外筒3の入るルート4から成っている。 [0006] As Embodiment] FIG. 1, an intravascular indwelling needle, Route 2 and enters the inner cylinder 1 consists of a root 4 of the start of the outer tube 3. ルート2および、ルート4は合流している。 Route 2 and Route 4 is joined. ルート2は、内筒1を抜き去ったとき、ルート2が閉じるための弁様構造5を持っており、弁様構造5 Route 2, when he left unplug the inner cylinder 1, has a valve-like structure 5 for Route 2 is closed, the valve-like structure 5
は、弁である必要はなく、ゴムのように、内筒1を抜き去ったとき、ルート2が閉じるような弾性体でもよい。 Need not be a valve, such as rubber, when retracted away inner cylinder 1, may be an elastic material such as route 2 is closed.
この構造は、ルート2上に空気がたまらないようルート4との分岐部にあり、その形状は、図に示した如く、輸液の流れがよどまないようなものが良い。 This structure is in the bifurcation of the root 4 as accumulation of air over route 2, the shape, as shown in FIG., The infusion flow is not something like a good Yodoma. 弾性体であるとき、その劣化により、内筒と癒着する可能性を減らすため、少なくとも内筒の弾性体内部分は、癒着しにくいものを用いるか、癒着しにくいもので内筒をコーティングし、もしくは更に、2者の間に、潤滑剤例えば、オリーブ油などを介在させるのがよい。 When an elastic body, due to its deterioration, to reduce the likelihood of adhesions and the inner cylinder, the elastic body at least part of the inner cylinder, either use those hard adhesion, by coating the inner tube in those difficult adhesions, or Furthermore, between two parties, lubricants for example, it is preferable to interpose a like olive oil. また、内筒1を抜くとき内筒1自身に付いた血液等を吸収する構造を合わせ持っていても良い。 It is also possible to have the combined structure to absorb blood or the like with the inner cylinder 1 itself when removing the inner cylinder 1. 吸収する構造は、弁様構造5との組み合わせで置くのがよい。 Structure to be absorbed, good to put in combination with the valve-like structure 5. 吸収する構造は一定の厚みを持つ吸収体でよい。 Absorbing structure can be a absorbent material having a constant thickness.

【0007】[発明の効果]本発明を用いることにより、血液逆流による血液汚染の機会を減らしつつ血管の確保ができる。 [0007] By using the present invention [Effect of the invention] can secure the vessel while reducing the chance of blood contamination by the blood backflow.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の断面図 Sectional view of the present invention; FIG

【符合の説明】 Description of the sign]

1は内筒、2はルート、3は外筒、4はルート 5は弁様構造、 1 inner cylinder, 2 is the root, 3 the outer tube, the root 5 the valve-like structure 4,

Claims (3)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】内筒および外筒からなる血管内留置針であるが、内筒の取り出しルートが外筒と別に付いており、 1. A is a intravascular indwelling needle comprising a inner tube and the outer tube, extraction route of the inner cylinder are separately attached to the outer tube,
    内筒の取り出しルートには、血液等が逆流しないような構造すなわち、弁様の構造もしくは内筒を抜くと取り出し口が閉じるような構造があるもの。 The extraction route of the inner cylinder, i.e. structure as blood or the like does not flow back, pulling the structure or inner tube of the valve-like the thing with the structure as outlet is closed. 弁様の構造もしくは、閉じるような構造は、取り出しルート内に、空気がたまって血管内に入ったり、しない程度に、取り出しルートと外筒との分岐部近くにあるもので、輸液の流れがよどみにくい形状がよい。 Structure of the valve-like or closes as structures in the extraction route, or enters the blood vessel accumulated air, to the extent not to, but near the branch portion of the take-out route and the outer tube, the infusion flow good stagnation difficult shape. 閉じるような構造は、ゴムのような弾性体であっても良いが、この時は、弾性体は、 Close Such structure may be an elastic body such as rubber, but at this time, the elastic body,
    劣化が起こりにくいものがよい。 Good things that deterioration is unlikely to occur. また、劣化が起こっても弾性体が癒着しにくいものでこの部分もしくは全体の内筒を作るか、内筒にコーティングが成されても良い。 Further, deterioration or make this portion or the whole of the inner cylinder in which hardly elastic body and adhesions occurred, may be coated have been made in the inner cylinder.
  2. 【請求項2】請求項1と同様のものであるが、閉じるような構造の部分の、弾性体と内筒の間に潤滑油を介させたもの。 2. While those similar to that of claim 1, part of the closed structure, which was passing through the lubricating oil between the elastic member and the inner tube.
  3. 【請求項3】請求項1、2と同じ構造であるが、更に、 Wherein it is the same structure as claimed in claim 1, further
    内筒の取り出しルートには、内筒を抜き取るとき、内筒に付いた血液等を吸収する構造があるもの。 The extraction route of the inner cylinder, when extracting the inner cylinder, which is structured to absorb blood or the like with the inner cylinder.
JP6331969A 1994-11-11 1994-12-01 Intravascular indwelling needle with separate take out opening for inner tube Pending JPH08187286A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP6-312296 1994-11-11
JP31229694 1994-11-11
JP6331969A JPH08187286A (en) 1994-11-11 1994-12-01 Intravascular indwelling needle with separate take out opening for inner tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6331969A JPH08187286A (en) 1994-11-11 1994-12-01 Intravascular indwelling needle with separate take out opening for inner tube

Publications (1)

Publication Number Publication Date
JPH08187286A true JPH08187286A (en) 1996-07-23

Family

ID=26567097

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6331969A Pending JPH08187286A (en) 1994-11-11 1994-12-01 Intravascular indwelling needle with separate take out opening for inner tube

Country Status (1)

Country Link
JP (1) JPH08187286A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006043392A (en) * 2004-08-05 2006-02-16 Tatsuya Nakatsuka System and instrument for preventing thrombus occlusion
JP2010155121A (en) * 2010-04-09 2010-07-15 Tatsuya Nakatsuka Thrombotic occlusion preventive device
US8012126B2 (en) 2006-10-31 2011-09-06 Unomedical A/S Infusion set
US8062250B2 (en) 2004-08-10 2011-11-22 Unomedical A/S Cannula device
US8246588B2 (en) 2007-07-18 2012-08-21 Unomedical A/S Insertion device with pivoting action
US8430850B2 (en) 2007-07-03 2013-04-30 Unomedical A/S Inserter having bistable equilibrium states
US8439838B2 (en) 2006-06-07 2013-05-14 Unomedical A/S Inserter for transcutaneous sensor
US9320869B2 (en) 2007-06-20 2016-04-26 Unomedical A/S Apparatus for making a catheter
US9724127B2 (en) 2010-09-27 2017-08-08 Unomedical A/S Insertion system and insertion kit

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006043392A (en) * 2004-08-05 2006-02-16 Tatsuya Nakatsuka System and instrument for preventing thrombus occlusion
US8062250B2 (en) 2004-08-10 2011-11-22 Unomedical A/S Cannula device
US8439838B2 (en) 2006-06-07 2013-05-14 Unomedical A/S Inserter for transcutaneous sensor
US8012126B2 (en) 2006-10-31 2011-09-06 Unomedical A/S Infusion set
US9320869B2 (en) 2007-06-20 2016-04-26 Unomedical A/S Apparatus for making a catheter
US8430850B2 (en) 2007-07-03 2013-04-30 Unomedical A/S Inserter having bistable equilibrium states
US8246588B2 (en) 2007-07-18 2012-08-21 Unomedical A/S Insertion device with pivoting action
JP2010155121A (en) * 2010-04-09 2010-07-15 Tatsuya Nakatsuka Thrombotic occlusion preventive device
US9724127B2 (en) 2010-09-27 2017-08-08 Unomedical A/S Insertion system and insertion kit

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