JPH11242040A - Injection device - Google Patents

Injection device

Info

Publication number
JPH11242040A
JPH11242040A JP4367598A JP4367598A JPH11242040A JP H11242040 A JPH11242040 A JP H11242040A JP 4367598 A JP4367598 A JP 4367598A JP 4367598 A JP4367598 A JP 4367598A JP H11242040 A JPH11242040 A JP H11242040A
Authority
JP
Japan
Prior art keywords
syringe
plunger
bubbles
reagent
needle
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
JP4367598A
Other languages
Japanese (ja)
Inventor
Jiyunji Inami
淳史 稲実
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimadzu Corp
Original Assignee
Shimadzu Corp
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
Application filed by Shimadzu Corp filed Critical Shimadzu Corp
Priority to JP4367598A priority Critical patent/JPH11242040A/en
Publication of JPH11242040A publication Critical patent/JPH11242040A/en
Pending legal-status Critical Current

Links

Landscapes

  • Sampling And Sample Adjustment (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)

Abstract

PROBLEM TO BE SOLVED: To completely eliminate bubbles adhering to a plunger itself as well as bubbles in a syringe by using the syringe with a vibration mechanism for eliminating bubbles at the plunger part. SOLUTION: A switching valve 2 is set so that a syringe 1 and a reagent pin 4 are connected, a plunger 7 is operated in this state, and a reagent 5 is sucked into the syringe 1. Then, the switching valve 2 is set so that the syringe 1 and a needle 3 can be connected, the plunger 7 is operated in this state, and the reagent 5 that is sucked by the syringe 1 is dispensed into a plurality of containers via the needle 3. At this time, when bubbles are mixed into the syringe 1 due to some causes, an ultrasonic vibrator 8 mounted to a plunger chip 6 is vibrated, thus directly eliminating bubbles in the syringe 1 and further easily eliminating adhering bubbles since the plunger chip 6 itself vibrates even if the air bubbles adhere to the plunger chip 6.

Description

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

【0001】[0001]

【発明の属する技術分野】本発明は自動化学分析装置等
の注入装置に関し、さらに詳細には微量分注を行う場合
に適した注入装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection apparatus such as an automatic chemical analysis apparatus, and more particularly to an injection apparatus suitable for dispensing minute amounts.

【0002】[0002]

【従来の技術】自動化学分析装置では、試料の分注を行
うことがあり、一般に吸引ポンプとして機能するシリン
ジに連接されたニードルを試料中に挿入して所定量の試
料を吸引・吐出する分注装置が広く使用されている。特
に最近は、注入の微量化、高精度化への要求が高まって
いる。
2. Description of the Related Art In an automatic chemical analyzer, a sample is sometimes dispensed. Generally, a needle connected to a syringe functioning as a suction pump is inserted into the sample and a predetermined amount of the sample is sucked and discharged. Injection devices are widely used. In particular, recently, there has been an increasing demand for miniaturization of injection and higher precision.

【0003】[0003]

【発明が解決しようとする課題】液体をシリンジ内に吸
引した際に、気泡がシリンジ内に混入する場合がある。
また、液体を吸引する前から存在する空気等が残留する
場合がある。これらは注入量の精度に悪影響を及ぼすこ
ととなるので、除去する必要がある。
When a liquid is sucked into a syringe, bubbles may be mixed into the syringe.
In addition, air or the like existing before suction of the liquid may remain. Since these adversely affect the accuracy of the injection amount, they need to be removed.

【0004】一般に、シリンジ内に混入した気泡や残留
空気の大部分はプランジャーの吸引・吐出動作を繰り返
すことにより除去することができるので、従来は必要に
応じて吸引・吐出動作を繰り返していた。しかし、完全
に除去するためには数回吸引・吐出動作を繰り返す必要
があり、煩雑であるとともに、処理時間の短縮化のため
の障害となっていた。
Generally, most of the air bubbles and residual air mixed in the syringe can be removed by repeating the suction / discharge operation of the plunger. Therefore, conventionally, the suction / discharge operation has been repeated as necessary. . However, it is necessary to repeat the suction / discharge operation several times for complete removal, which is complicated and hinders the processing time.

【0005】また、さらに重要な問題として気泡等がプ
ランジャー表面に付着した場合はプランジャー自身の吸
引・吐出動作によっても除去することが困難であり、有
効な除去方法がなかった。
[0005] Further, as an even more important problem, when air bubbles or the like adhere to the plunger surface, it is difficult to remove the bubbles by the suction / discharge operation of the plunger itself, and there has been no effective removal method.

【0006】そこで、本発明は簡単にシリンジ内の気泡
等が除去できるとともに、たとえプランジャー自身に気
泡等が付着してもこれを完全に除去することができる注
入装置を提供することを目的とする。
Accordingly, an object of the present invention is to provide an injection device which can easily remove bubbles and the like in a syringe and completely remove bubbles and the like even if they adhere to the plunger itself. I do.

【0007】[0007]

【課題を解決するための手段】上記課題を解決するため
になされた本発明の注入装置は、プランジャ部分に気泡
除去のための振動機構を有するシリンジを用いたことを
特徴とする。本発明によれば、プランジャー部分に振動
機構が設けられているので、これを作動させることによ
りシリンジ内の気泡等は振動の影響により除去される。
また、たとえプランジャー表面に気泡が付着したとして
もプランジャー自身が振動することにより、気泡はプラ
ンジャー表面から容易に離脱される。
An injection device according to the present invention for solving the above-mentioned problems is characterized in that a syringe having a vibration mechanism for removing air bubbles is used in a plunger portion. According to the present invention, since the vibration mechanism is provided in the plunger portion, air bubbles and the like in the syringe are removed by operating the vibration mechanism due to the influence of vibration.
Even if air bubbles adhere to the plunger surface, the air bubbles are easily separated from the plunger surface by vibrating the plunger itself.

【0008】[0008]

【発明の実施の形態】図1に本発明の一実施例である分
注装置の構成図を示す。本図において1はシリンジであ
り、2は流路を切換えるための切換バルブ、3は液体を
容器等に吸引・吐出するためのニードル、4は試薬ビ
ン、5は試薬である。
DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a configuration diagram of a dispensing apparatus according to one embodiment of the present invention. In the figure, 1 is a syringe, 2 is a switching valve for switching a flow path, 3 is a needle for sucking and discharging a liquid to a container or the like, 4 is a reagent bottle, and 5 is a reagent.

【0009】また、6はシリンジ1内で摺動するプラン
ジャーチップ、7はプランジャーチップに接続されるプ
ランジャーであり、図示しない駆動機構によりシリンジ
軸方向に動くことができるようにしてある。8はプラン
ジャーチップに埋め込まれた超音波振動子であり、プラ
ンジャー7に設けられた内部空洞を通してコントローラ
9に配線接続されている。
Reference numeral 6 denotes a plunger tip that slides in the syringe 1, and reference numeral 7 denotes a plunger connected to the plunger tip, which can be moved in the axial direction of the syringe by a drive mechanism (not shown). Reference numeral 8 denotes an ultrasonic vibrator embedded in the plunger chip, which is connected to a controller 9 through an internal cavity provided in the plunger 7.

【0010】次にこの分注装置の動作を説明する。 ま
ず最初に、切換バルブ2をシリンジ1と試薬ビン4とが
接続されるように設定し、この状態でプランジャー7を
作動させ、シリンジ1内に試薬5を吸引する。次に、切
換バルブ2をシリンジとニードル3とが接続されるよう
に設定し、この状態でプランジャー7を作動させ、シリ
ンジに吸引した試薬5をニードル3を介して複数の容器
に分注する。
Next, the operation of the dispensing apparatus will be described. First, the switching valve 2 is set so that the syringe 1 and the reagent bottle 4 are connected. In this state, the plunger 7 is operated to suck the reagent 5 into the syringe 1. Next, the switching valve 2 is set so that the syringe and the needle 3 are connected. In this state, the plunger 7 is operated, and the reagent 5 sucked into the syringe is dispensed to a plurality of containers via the needle 3. .

【0011】このとき、何らかの原因によりシリンジ1
内に気泡が混入した場合に、プランジャーチップ6に取
り付けた超音波振動子8を駆動させる。これにより、シ
リンジ1内の気泡はただちにシリンジ1から除去するこ
とができる。特に、気泡がプランジャーチップ6に付着
した場合であっても、プランジャーチップ6自身が振動
するので、容易に付着している気泡が除去されるように
なる。
At this time, the syringe 1
When bubbles are mixed in the inside, the ultrasonic vibrator 8 attached to the plunger tip 6 is driven. Thereby, air bubbles in the syringe 1 can be immediately removed from the syringe 1. In particular, even when bubbles adhere to the plunger tip 6, the plunger tip 6 itself vibrates, so that the attached bubbles can be easily removed.

【0012】なお、試料吸引から試料吐出の動作の間、
常にプランジャーチップ6に取り付けた超音波振動子8
をあらかじめ駆動させておいてもよい。これにより、何
らかの原因によりシリンジ1内に気泡等が混入したとし
てもただちにシリンジ内から除去されてしまうので、シ
リンジ内への気泡付着を予防することができる。
[0012] During the operation from sample suction to sample discharge,
Ultrasonic vibrator 8 always attached to plunger tip 6
May be driven in advance. Thereby, even if air bubbles or the like are mixed in the syringe 1 for some reason, the air bubbles are immediately removed from the syringe, so that air bubbles can be prevented from adhering to the syringe.

【0013】なお、本発明は、分注装置に限らず、液体
をシリンジにより定量して注入するような装置であれば
適用できる。
The present invention is not limited to the dispensing device, but can be applied to any device that can inject a fixed amount of liquid with a syringe.

【0014】[0014]

【発明の効果】本発明によれば、プランジャー部分に超
音波振動子を設けたので、シリンジ内に気泡等が混入し
ても、超音波振動子を駆動させることにより、容易に気
泡を除去することができる。特に、プランジャー自身に
気泡が付着した場合でも、簡単に気泡を除去することが
できる。
According to the present invention, since the ultrasonic vibrator is provided in the plunger portion, even if bubbles or the like are mixed in the syringe, the bubbles are easily removed by driving the ultrasonic vibrator. can do. In particular, even when air bubbles adhere to the plunger itself, the air bubbles can be easily removed.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の一実施例である分注装置構成図。FIG. 1 is a configuration diagram of a dispensing apparatus according to an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1:シリンジ 2:切換バルブ 3:ニードル 4:試薬ビン 6:プランジャーチップ 7:プランジャー 8:超音波振動子 9:コントローラ 1: Syringe 2: Switching valve 3: Needle 4: Reagent bottle 6: Plunger tip 7: Plunger 8: Ultrasonic vibrator 9: Controller

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】プランジャー部分に気泡除去のための振動
機構を有するシリンジを用いて注入することを特徴とす
る注入装置。
An injection apparatus for injecting a liquid into a plunger using a syringe having a vibration mechanism for removing air bubbles.
JP4367598A 1998-02-25 1998-02-25 Injection device Pending JPH11242040A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4367598A JPH11242040A (en) 1998-02-25 1998-02-25 Injection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4367598A JPH11242040A (en) 1998-02-25 1998-02-25 Injection device

Publications (1)

Publication Number Publication Date
JPH11242040A true JPH11242040A (en) 1999-09-07

Family

ID=12670426

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4367598A Pending JPH11242040A (en) 1998-02-25 1998-02-25 Injection device

Country Status (1)

Country Link
JP (1) JPH11242040A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007148485A1 (en) * 2006-06-21 2007-12-27 Olympus Corporation Dispenser unit and analytical instrument
JP2010052253A (en) * 2008-08-28 2010-03-11 Brother Ind Ltd Inkjet recording apparatus
KR20140033372A (en) * 2011-04-28 2014-03-18 랩사이트 아이엔씨. Sample containers adapted for acoustic ejections and sample preservation and methods thereof
US10725062B2 (en) 2015-08-04 2020-07-28 Hitachi High-Tech Corporation Dispensing device
KR20230068829A (en) * 2021-11-11 2023-05-18 윤인수 Quantitative supply pump of chemical liquid to remove bubbles

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007148485A1 (en) * 2006-06-21 2007-12-27 Olympus Corporation Dispenser unit and analytical instrument
JP2008002899A (en) * 2006-06-21 2008-01-10 Olympus Corp Dispenser and analyzer
JP2010052253A (en) * 2008-08-28 2010-03-11 Brother Ind Ltd Inkjet recording apparatus
JP4572972B2 (en) * 2008-08-28 2010-11-04 ブラザー工業株式会社 Inkjet recording device
KR20140033372A (en) * 2011-04-28 2014-03-18 랩사이트 아이엔씨. Sample containers adapted for acoustic ejections and sample preservation and methods thereof
JP2014513300A (en) * 2011-04-28 2014-05-29 ラブサイト インコーポレイテッド Sample container and method adapted for acoustic emission and sample storage
US10016757B2 (en) 2011-04-28 2018-07-10 Labcyte Inc. Sample containers adapted for acoustic ejections and sample preservation and methods thereof
US10725062B2 (en) 2015-08-04 2020-07-28 Hitachi High-Tech Corporation Dispensing device
KR20230068829A (en) * 2021-11-11 2023-05-18 윤인수 Quantitative supply pump of chemical liquid to remove bubbles

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