JPH04132960A - Apparatus for confirming dripping to microplate - Google Patents

Apparatus for confirming dripping to microplate

Info

Publication number
JPH04132960A
JPH04132960A JP25421790A JP25421790A JPH04132960A JP H04132960 A JPH04132960 A JP H04132960A JP 25421790 A JP25421790 A JP 25421790A JP 25421790 A JP25421790 A JP 25421790A JP H04132960 A JPH04132960 A JP H04132960A
Authority
JP
Japan
Prior art keywords
reagent
microplate
wells
well
dripping
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
JP25421790A
Other languages
Japanese (ja)
Inventor
Osamu Hirasawa
修 平沢
Shunichi Matsumoto
俊一 松本
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.)
TECHNO MEDEIKA KK
Original Assignee
TECHNO MEDEIKA KK
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 TECHNO MEDEIKA KK filed Critical TECHNO MEDEIKA KK
Priority to JP25421790A priority Critical patent/JPH04132960A/en
Publication of JPH04132960A publication Critical patent/JPH04132960A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To easily confirm dripping of reagent to prevent inspection errors due to erroneous recognition by detecting that a projected light beam from a light emitting means placed at a corresponding position of each well on a microplate is shielded by a drip. CONSTITUTION:When first reagent is dripped into a well 2 in (a) of an array A while infrared rays are projected from infrared projectors 8, 9 to opposite light receivers 12, 13 respectively, the drip shields an infrared ray projected from a projector 8A, 9a, a shield signal is transmitted to a controller to have an LED 15 immediately below the well 2 of (a) of the array A lit, so that dripping of the first reagent is easily known. Thus for example after the first reagent has been dripped into wells 2 of (a) to (j) of arrays A to H, the lit LED 15 is made to go out by a reset switch 17. Then second reagent is dripped into the wells 2 of (a) to (j) of the array A, and third reagent is dripped into wells 2 of (a) to (j) of an array B, so that dripping of the second reagent and the third reagent can be confirmed with LEDs 15 immediately below the respective wells lit.

Description

【発明の詳細な説明】 (産業上の利用分野) この発明は、医療検査や微量の組織培養等に用いるいわ
ゆるマイクロプレートに関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a so-called microplate used for medical testing, micro-amount tissue culture, and the like.

(従来技術) プラスチック、ガラス等の板に8×12の96個の小容
量ウェルを設けたいわゆるマイクロプレートは、例えば
酵素免疫測定(EIA)法によって抗原抗体検査に用い
るとき、抗体液、測定すべき抗原液。
(Prior art) A so-called microplate in which 96 small-volume wells of 8 x 12 are provided on a plate made of plastic or glass is used for antigen-antibody testing using enzyme-linked immunosorbent assay (EIA), for example. Antigen solution.

酵素標識抗原液のように、複数種類の液体か個々の穴に
順次滴下されるが、ある穴に液体か滴下されているか、
滴下されている場合何番目の液体まで滴下されているか
を視認することは非常に困難である。その理由は、ウェ
ルが0.25−とか0.3−という小容量であり、そこ
へ無色又はほぼ無色透明の液体を1滴(約0.05d 
)滴下するだけなので、目視しただけでは、上記のよう
な識別ができにくいからである。そのため1種類の試薬
液が入っていないウェルや、逆に同じ試薬液が2滴入っ
ているウェルが存在する可能性があり、そのことは検査
ミスに直接つながることになる。
Like an enzyme-labeled antigen solution, multiple types of liquids are sequentially dropped into individual holes, but whether a liquid is dropped into a certain hole or not,
When the liquid is being dropped, it is very difficult to visually confirm the number of liquids that have been dropped. The reason for this is that the well has a small volume of 0.25 or 0.3, and one drop of a colorless or almost colorless transparent liquid (approximately 0.05 d
) This is because it is difficult to make the above identification just by visually observing it, since it is only dripped. Therefore, there is a possibility that there are wells that do not contain one type of reagent solution, or conversely, there are wells that contain two drops of the same reagent solution, which directly leads to inspection errors.

(発明が解決しようとする課題) この発明は、上記のような視認困難という従来技術の欠
点を除き、検査ミスを惹起しないようなマイクロプレー
トを提供することを目的としている。
(Problems to be Solved by the Invention) The object of the present invention is to provide a microplate which eliminates the drawback of the prior art of difficulty in visual recognition as described above and which does not cause inspection errors.

(課題を解決するための手段) このためこの発明によるマイクロプレートへの滴下確認
装置は、n列×m列のウェルを備えたマイクロプレート
を嵌入する凹所を上面に設けた載置台、凹所の相隣る二
つの内側壁上部でマイクロプレート上面のわずかに上に
あり各ウェル位置と対応する位置に配設された発光手段
、これらの内側壁と対向する二つの内側壁上部で発光手
段と対応する位置に配設された受光手段、及び凹所底面
で各ウェル底部の直下の位置に配設された発光手段を有
することを特徴としている。
(Means for Solving the Problems) Therefore, the apparatus for confirming dropping onto a microplate according to the present invention includes a mounting table having a recess on the upper surface into which a microplate having n rows by m rows of wells is inserted; A light-emitting means is provided at the top of two adjacent inner walls of the microplate at a position slightly above the top surface of the microplate and corresponds to each well position, and a light-emitting means is provided at the top of two inner walls facing these inner walls. It is characterized by having light receiving means disposed at corresponding positions, and light emitting means disposed at a position directly below the bottom of each well on the bottom surface of the recess.

内側壁に設ける発光手段は、例えば赤外線投射装置、発
光ダイオード等を用いることができ、受光手段は、これ
らの投射光線を受光する受光素子である。底面に配置さ
れる発光手段は、例えば赤色や緑色に点灯する発光ダイ
オードが便利である。
The light emitting means provided on the inner wall can be, for example, an infrared projection device, a light emitting diode, etc., and the light receiving means is a light receiving element that receives these projected light beams. The light emitting means disposed on the bottom is conveniently a light emitting diode that lights up in red or green, for example.

(発明の作用) この発明による装置は、上記のような構成を備えている
ので、使用者がピペットから試薬液を1滴滴下すると、
この液滴が内側壁の発光手段から投射されている光線を
瞬間的遮断するので、この受光手段からの信号によって
試薬液か滴下されたウェルの直下の発光手段を点灯させ
、どのウェルに試薬液が滴下されたかを容易に目視によ
って確認できるのである。
(Operation of the Invention) Since the device according to the present invention has the above-described configuration, when the user drops one drop of the reagent solution from the pipette,
This droplet momentarily blocks the light beam projected from the light emitting means on the inner wall, so the signal from the light receiving means lights up the light emitting means directly below the well into which the reagent solution has been dropped. It is easy to visually confirm whether or not the liquid has been dropped.

以下この発明によるマイクロプレートへの滴下確認装置
の一実施例を示す図を参照して、この発明についてさら
に詳細に説明する。
The present invention will be described in more detail below with reference to the drawings showing an embodiment of the apparatus for confirming dropping onto a microplate according to the present invention.

(実施例) 無色透明のプラスチックでつくられたマイクロプレート
1は、その上面に縦12列、横8列、合計96個のウェ
ル2,2.・・・が設けられており(図面を簡略化する
ため一部のウェルのみ図示した)、各ウェルの容量は、
第2図に示されたように下部が截頭円錐形をしているた
めに開口面積に比して少量であり0.25−である。
(Example) A microplate 1 made of colorless and transparent plastic has a total of 96 wells 2, 2 . ... (only some wells are shown to simplify the drawing), and the capacity of each well is
As shown in FIG. 2, since the lower part has a truncated conical shape, the opening area is small compared to the opening area, which is 0.25-.

このマイクロプレート1を載置する載置台3は、その上
面にマイクロプレート1を完全に収容し、載置台3の上
端面よりマイクロプレートlの上面4が下方に位置する
ような凹所5を設けである。
The mounting table 3 on which the microplate 1 is placed is provided with a recess 5 such that the microplate 1 is completely accommodated on its upper surface and the upper surface 4 of the microplate l is located below the upper end surface of the mounting table 3. It is.

凹所5の相隣る内側壁6及び7のマイクロプレート1の
上面4よりわずかに(例えばl−以下)上方には、ウェ
ル2,2.・・・の各列の位置に合わせて赤外線投射装
置8,8.・・・及び9,9.・・・が取付けられてい
る。内側壁6と対向する内側壁10及び内側壁7と対向
する内側壁11には、赤外線投射装置8.8.・・・及
び9,9.・・・と同じ高さにありそれらと対応した位
置に赤外線受光装置12.12.・・・及び13,13
、・・・が取付けられている。換言すれば、第2図及び
第3図に示されたように、1対の赤外線投射装置8及び
受光装置12は、マイクロプレートlの上面4よりわず
かに高い高さで、ウェル2,2.・・・の横1列、例え
ばA列の両端と対向する内側壁6及びlOに取付けられ
ている。
Slightly (for example, l- or less) above the upper surface 4 of the microplate 1 on the adjacent inner walls 6 and 7 of the recess 5 are wells 2, 2, . The infrared projection devices 8, 8 . . . ...and 9,9. ... is installed. The inner wall 10 facing the inner wall 6 and the inner wall 11 facing the inner wall 7 are provided with infrared projection devices 8.8. ...and 9,9. ...and at a position corresponding to them, there is an infrared receiver 12.12. ...and 13,13
,... are installed. In other words, as shown in FIGS. 2 and 3, the pair of infrared projection device 8 and light receiving device 12 are located at a height slightly higher than the top surface 4 of the microplate l, and the wells 2, 2, . ... are attached to the inner walls 6 and 1O facing both ends of one horizontal row, for example, row A.

凹所5の底面14には、各ウェル2,2.・・・の底部
中心の直下に合計96個の発光ダイオード(LED)1
5゜15、・・・が配設されている。
On the bottom surface 14 of the recess 5, each well 2, 2 . A total of 96 light emitting diodes (LEDs) 1 directly below the center of the bottom of...
5°15,... are arranged.

次にこの装置の作動について説明する。Next, the operation of this device will be explained.

マイクロプレート1のウェル2,2.・・・に最初の試
薬液を滴下する前に電源スィッチ16をオンにして、赤
外線投射装置8,8.・・・及び9,9.・・・から、
それぞれ対向する受光装置12.12.・・・及び13
,13.・・・へ向けて赤外線を投射する状態にする。
Wells 2, 2 of microplate 1. . . , turn on the power switch 16 before dropping the first reagent solution onto the infrared projection devices 8, 8 . ...and 9,9. ···from,
Respectively opposing light receiving devices 12.12. ...and 13
,13. ... to project infrared rays towards.

ここで最初の試薬液をA列aのウェルに滴下すると、第
2図に示したようにこの液滴が、A列上を投射装置9A
から受光装置12Aへ向けて投射されている赤外線を遮
断し、またa列上を投射装置9aから受光装置13aへ
向けて投射されている赤外線も遮断する。これらの赤外
線の瞬間的遮断の信号は制御ことが容易に目視できる。
When the first reagent solution is dropped into the well in row A, the droplet passes over row A through the projection device 9A, as shown in FIG.
The infrared rays projected from the projection device 9a toward the light receiving device 12A are blocked, and the infrared rays projected from the projection device 9a toward the light receiving device 13a on the a row are also blocked. These infrared instantaneous interruption signals are easily visible and controllable.

このようにして、例えば、A列、B列、0列、D列のそ
れぞれa、b。
In this way, for example, a and b in columns A, B, 0, and D, respectively.

c、dのウェルに第1の試薬液を滴下し終ったならば、
リセットスイッチ17によって点灯しているLEDを消
す。次いで第2の試薬液をA列のa、b。
After dropping the first reagent solution into wells c and d,
Turn off the lit LED with the reset switch 17. Next, apply the second reagent solution to row A, a and b.

c、dのウェルに、また第3の試薬液をB列のa。Add the third reagent solution to wells c and d, and add the third reagent solution to wells a of row B.

b、c、dのウェルに滴下したとすると、前記と同様の
作動により、それぞれのウェルの直下のLEDが点灯し
て、これらのウェルに第2、又は第3の試薬液が滴下さ
れたことを知らせる。
If the reagent solution is dropped into wells b, c, and d, the LEDs directly below each well will light up due to the same operation as above, indicating that the second or third reagent solution has been dropped into these wells. Let me know.

このようにして液滴が発光手段(この実施例では赤外線
投射装置)からの光線を瞬間的に遮断することを受光手
段か感知し、その信号によって液が滴下されたウェルの
直下の発光手段(LED)が点灯するので、誰でも容易
に滴下を確認することかできる。
In this way, the light receiving means senses that the droplet momentarily interrupts the light beam from the light emitting means (in this example, an infrared projection device), and in response to this signal, the light emitting means ( Since the LED (LED) lights up, anyone can easily check the dripping.

人によっては試薬を滴下する際にピペットをウェル内に
わずかに挿入したり、ウェルの上端面付近まで下げたり
するので、このような場合には液滴の滴下よりは長い時
間、ピペット先端によって光線を遮断することになる。
Some people insert the pipette slightly into the well when dropping a reagent, or lower the pipette to near the top of the well, so in such cases, the pipette tip will hold the light beam for a longer period of time than the droplet is dropped. will be blocked.

したがっである程度の長い時間(例えば1秒以上)光線
が遮断されたときは、滴下のためにピペット先端が光線
を遮断したものとみなして、そのウェル下のLEDが点
灯するようにもできる。
Therefore, when the light beam is blocked for a certain amount of time (for example, 1 second or more), it is assumed that the pipette tip has blocked the light beam for dripping, and the LED under the well can be turned on.

またLEDチップに、赤に発光する素子と緑に発光する
素子とを組合せたものを使用することにより、1回目の
滴下で赤、2回目の滴下で緑が点灯するようにもできる
Furthermore, by using an LED chip that combines an element that emits red light and an element that emits green light, it is possible to light up red when the first drop is applied and green when the second drop is applied.

(発明の効果) この発明によるマイクロプレートへの滴下確認装置は、
上記のような構成を有するので、従来の目視方法では、
どのウェルに試薬液が滴下されたか、また何種類の試薬
液が滴下されたかを確認することは非常に困難であった
のを、ウェルに滴下される液滴やウェルに挿入されるピ
ペット先端か、発光手段から受光手段へ投射される光線
を遮断することを受光手段で感知し、それによって当該
ウェルの直下のLEDを点灯するので、試薬液か滴下さ
れたウェルを容易に確認できる。したがって滴下試薬液
の誤認による検査ミスという、きわめて重大な医療事故
を未然に防止するという顕著な効果を奏するものである
(Effect of the invention) The device for confirming dropping onto a microplate according to the present invention has the following features:
With the above configuration, in the conventional visual inspection method,
It used to be extremely difficult to check which well a reagent solution was dropped into, or how many types of reagent solutions were dropped into the well. The light-receiving means senses that the light beam projected from the light-emitting means to the light-receiving means is interrupted, thereby lighting up the LED directly below the well, so the well into which the reagent solution has been dropped can be easily confirmed. Therefore, this method has the remarkable effect of preventing extremely serious medical accidents such as test errors due to misidentification of the dropped reagent solution.

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

第1図は、この発明によるマイクロプレートへの滴下確
認装置の一実施例であり、マイクロプレートが載置され
た状態の斜視図、第2図は、第1図の縦断面図、第3図
は、この装置の作動を示す説明図である。 にマイクロプレート、2,2.・・・:ウエル、3゜載
置台、5:載置台の凹所、6,7,10.11  :凹
所の内側壁、8,8.・・・、  9.9.・・電光外
線投射装置、12、12.・・・、 13.13.・・
・:受光装置、14:凹所の底面、15、15・・・:
 LED
FIG. 1 is a perspective view of an embodiment of the device for confirming dripping onto a microplate according to the present invention, with a microplate placed thereon, FIG. 2 is a vertical cross-sectional view of FIG. 1, and FIG. is an explanatory diagram showing the operation of this device. microplate, 2,2. ...: well, 3° mounting table, 5: recess of mounting table, 6, 7, 10.11: inner wall of recess, 8, 8. ..., 9.9. ...Electronic external beam projection device, 12, 12. ..., 13.13.・・・
・: Light receiving device, 14: Bottom of recess, 15, 15...:
LED

Claims (1)

【特許請求の範囲】[Claims] n列×m列のウェルを備えたマイクロプレートを嵌入で
きる凹所を上面に設けた載置台、前記凹所の相隣る二つ
の内側壁上部でマイクロプレート上面のわずかに上にあ
り各ウェル位置と対応する位置に配設された発光手段、
前記両側壁と対向する二つの内側壁上部で前記発光手段
と対応する位置に配設された受光手段、及び凹所底面で
各ウェル底部の直下の位置に配設された発光手段を有す
ることを特徴とするマイクロプレートへの滴下確認装置
A mounting table with a recess on the top surface into which a microplate with n rows by m rows of wells can be fitted, and a mounting table slightly above the top surface of the microplate at the top of two adjacent inner walls of the recess, each well position a light emitting means arranged at a position corresponding to the
The light receiving means is disposed at a position corresponding to the light emitting means on the upper part of the two inner walls facing the both side walls, and the light emitting means is disposed at a position directly below the bottom of each well on the bottom surface of the recess. Features: A device for confirming dripping onto a microplate.
JP25421790A 1990-09-26 1990-09-26 Apparatus for confirming dripping to microplate Pending JPH04132960A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25421790A JPH04132960A (en) 1990-09-26 1990-09-26 Apparatus for confirming dripping to microplate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25421790A JPH04132960A (en) 1990-09-26 1990-09-26 Apparatus for confirming dripping to microplate

Publications (1)

Publication Number Publication Date
JPH04132960A true JPH04132960A (en) 1992-05-07

Family

ID=17261892

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25421790A Pending JPH04132960A (en) 1990-09-26 1990-09-26 Apparatus for confirming dripping to microplate

Country Status (1)

Country Link
JP (1) JPH04132960A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0727663A (en) * 1993-07-15 1995-01-31 Aloka Co Ltd Liquid leakage detection method for dispensing device
JP2009510441A (en) * 2005-09-28 2009-03-12 アイデックス ラボラトリーズ インコーポレイテッド Microplate sample tracking system
US7733488B1 (en) 2007-01-26 2010-06-08 Revolution Optics, Llc Compact multi-wavelength optical reader and method of acquiring optical data on clustered assay samples using differing-wavelength light sources
CN104407395A (en) * 2014-12-06 2015-03-11 周振 Infrared sensing microplate indicator
CN109092379A (en) * 2018-09-05 2018-12-28 仲恺农业工程学院 Miniflow reaction chip and its drop positioning control system and control method
JP2019532305A (en) * 2016-09-05 2019-11-07 ドイチェ・ザートフェアエーデルング・アクチエンゲゼルシャフト Cultivation and sampling methods

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63106565A (en) * 1986-07-02 1988-05-11 イ−・アイ・デュポン・ド・ネモア−ス・アンド・コンパニ− Vessel discriminator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63106565A (en) * 1986-07-02 1988-05-11 イ−・アイ・デュポン・ド・ネモア−ス・アンド・コンパニ− Vessel discriminator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0727663A (en) * 1993-07-15 1995-01-31 Aloka Co Ltd Liquid leakage detection method for dispensing device
JP2009510441A (en) * 2005-09-28 2009-03-12 アイデックス ラボラトリーズ インコーポレイテッド Microplate sample tracking system
US7733488B1 (en) 2007-01-26 2010-06-08 Revolution Optics, Llc Compact multi-wavelength optical reader and method of acquiring optical data on clustered assay samples using differing-wavelength light sources
CN104407395A (en) * 2014-12-06 2015-03-11 周振 Infrared sensing microplate indicator
JP2019532305A (en) * 2016-09-05 2019-11-07 ドイチェ・ザートフェアエーデルング・アクチエンゲゼルシャフト Cultivation and sampling methods
CN109092379A (en) * 2018-09-05 2018-12-28 仲恺农业工程学院 Miniflow reaction chip and its drop positioning control system and control method
CN109092379B (en) * 2018-09-05 2024-04-16 仲恺农业工程学院 Microfluidic reaction chip and liquid drop positioning control system and control method thereof

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