JP3712007B2 - Chemical reaction visual mixing test method - Google Patents

Chemical reaction visual mixing test method Download PDF

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JP3712007B2
JP3712007B2 JP33093494A JP33093494A JP3712007B2 JP 3712007 B2 JP3712007 B2 JP 3712007B2 JP 33093494 A JP33093494 A JP 33093494A JP 33093494 A JP33093494 A JP 33093494A JP 3712007 B2 JP3712007 B2 JP 3712007B2
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JPH08160031A (en
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浩之 大竹
龍三郎 大竹
敬二 大竹
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敬二 大竹
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
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    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour

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Description

【0001】
【産業上の利用分野】
この発明は、超微量の試薬及び試料を使用した化学反応目視用混合試験方法に関するものであり、特に現場において簡便且つ安全に密封状態でも実施できる上、混合したその場で目視により結果(混合、凝集、発色、沈降、沈澱等)を判定でき、また試験結果を容易にポケットに入れ持ち歩いたり、記録原簿に張り付け保存したり、場所を取らず長期保存できると共に廃液処理等を不要としたものである。
【0002】
【従来の技術】
従来、混合、発色反応、凝集反応、溶解沈降(沈澱)反応等の化学反応による分析、分別、及び試験は、一般的には試験管又はマイクロプレート上で、内部に試料(検体)と薬品(試薬)を入れ振動及び撹拌棒によって分析結果を得ていた(実開昭62−47967号公報)。
【0003】
【発明が解決しようとする課題】
然しながら、従来法は廃液処理施設又は処理方法によって近年危険物を垂れ流しが不可能となり、焼却処分によっては焼却炉を高温により破損してしまう事故が発生してごみ問題とともに、また粉砕処理方法によっても危険物の飛散が問題となり人体に感染する問題も発生し、八方塞りとなっていた。また試料の廃棄量の多い場合には最早対応が不可能なことが起こり、時代に合わないこととなってきて、超微量分析法が望まれて、実験室、試験室、研究室等で重ねて繰り返す試験には、その材料費と処分方法でかなりの額の費用が年々加重されるばかりである。
【0004】
また室内、戸外どこでも簡単にポケットに入れられて超微量試験・分析が可能となり、その分析結果をそのまま記録に保管でき、場所も必要とせず、処分も簡単に焼却可能となり運搬費も大幅に安くすることができ、超微量分析のための特別の分析装置に頼らざるを得なかった現状を解消し、危険な試料,薬品検体の垂れ流しとそのための施設も同時に解消することができる。
【0005】
【課題を解決するための手段】
そこで本発明者は、係る従来の問題点を基本から解消するため、超微量での分析等を極めて便利に手軽に、場所を選ばず、処理問題も合わせて解決し得る化学反応目視用混合試験方法で、加温又は低温時の処理時にも、従来のような恒温槽や低温槽を必要とせず、手のひら大の温風室又はドライアイスを用いた小型クーラーボックス位で簡単に所定の温度が得られ、超微量分析が極めて手軽にどこでも行い得る化学反応目視用混合試験方法を提供することを目的として様々な実験及び実用試験を重ねた。
【0006】
そしてその結果、二枚の板間での毛細管現象と撓み性を利用すれば、極めて超微量で試験管内と同等の結果が容易に得られることを見い出し本発明を完成したもので、広範囲に用できることが同時に確認されたものであり、かなりの資源と人件費、処理費が節約されることがこの方法で判明した。
【0007】
そこでこの発明に係る化学反応目視用混合試験方法は、弾性を有する薄板基板に外部から観察可能な試薬と試料を混合するための混合室を設け、混合室に試薬及び試料を入れた後、基板を撓み復元操作をして混合室の試薬と試料を混合し、混合室を外部から観察して結果を判定するようにしたことを特徴とするものである。
【0008】
【0009】
【0010】
【作用】
この発明に係る化学反応目視用混合試験方法は、弾性を有する可撓性の薄板基板に外部から観察可能に設けた混合室(主として2枚の薄板を重ね合わせたもの)に試薬及び試料を毛細管現象を利用して、または直接注入し、その後例えば基板の両側を指で挟むようにして持ち、基板を撓み復元操作(屈伸操作)して混合室の試薬と試料を混合し、混合室を外部から観察して結果(混合、凝集、発色、沈降、沈澱等)を判定する。
【0011】
また、所望の試薬が入っており、外部より室内に試料が侵入可能な混合室を設けた弾性を有する薄板基板の混合室に、試薬を所定箇所から毛細管現象を利用して、又は他の任意の方法により入れ、その後基板を撓み復元操作して混合室の試薬と試料を混合し、混合室を外部から観察して結果を判定する。そして、その後カバーフィルムにより開口部を密閉して保持・保存する。
【0012】
混合室は、弾性を有する薄板基板にプレート片を重ね合わせ、プレート片の任意箇所を基板に固着して形成するか、あるいは弾性を有する薄型基板に所望形状の打抜き部を形成し、この打抜き部裏側の全面をカバー材で塞ぎ、表側を任意の面積プレート片で塞いで、又は表側の全面をプレート片で塞ぎプレート片又はカバー材に混合室に通じる所望形状の透孔を設けて形成する。
【0013】
ここに弾性を有する薄板基板の材質としては、弾性を有して変形可能であればその種類の如何を問わないが、例えば合成樹脂製薄板は便利であり、また合成樹脂をコーティングした防水性紙や、金属製薄板、シリコン塗布板等が使用可能である。
【0014】
この薄板基板の大きさ、厚さ、及び形状はその如何を問わないが、試験、分析反応を行う検査、検体の数で決められて良く、一度に100検体や200検体といくらでも増加が可能で、一検体から300検体を片手又は両手で薄板基板の両端を押さえて撓み操作(屈伸操作)を行い得ることができる大きさで、当然小検体では、0.05〜0.2mmくらいの基盤、300検体では0.2〜0.5mmくらいの基盤、就中名刺大やテレフォンカード大とすると少量試験(6〜8項目検査)に望ましく、またその厚さは0.05〜0.5mm程度とするのが多くの化学反応に使い易い。
【0015】
また、基板は反応色に合わせ、反応と反対色を用いるとよく、白い凝集発色には黒い基板等を用いる。また基盤には、プレート片に合わせて、すじ又は切れ込み部を入れておくと撓み効果が得られ、多量の反応検体に対しては反応し易い。
【0016】
一方、プレート片の材質としては弾力性や撓み性は必ずしも必要でないが、基板とプレート片間の間隙の容積を効率的に変化せしめるためには、むしろ撓み性が小さいか有さない方が好ましく、基板は大きいので曲がり易いが、プレート片は小片なので曲がり難いので合成樹脂製薄板が便利である。またプレート片自体は混和,混合状態を外部から観察し得るよう透明体か、または凝集、発色(呈色)、沈降(沈澱)反応が見やすい黒か薄い色付きでもよい。
【0017】
また、このプレート片の大きさは基板と同一であってもよいが、通常は基板より小さいものを複数枚用い、一つの基板にそれぞれ各別、反応別に重ね合わせ固着せしめるのが、複数の分析試験を行い得る上で有利である。
【0018】
またプレート片の形状もその如何を問わないが、方形状とするのが固着部位の選定の容易性及び基板の撓み・復元操作に伴う効率よい間隙容積の変化を得る上で有利であるが、逆三角形、長方形でかなりの長さでも、内容物の混合は強制的に撹拌可能で、むしろ試験管内で混和混合するより優れている位である。なお、プレート片の厚さも基板と同様0.05mm〜0.5mm程度で、試験検体が多い場合には厚くし、試験検体が少ない場合には薄くしてもよい。
【0019】
プレート片を基板に固着するには任意の箇所を固着すればよく、例えばプレート片が方形状又は長方形の場合には、一辺縁部、二辺縁部、三辺縁部、四辺縁部、及び裏蓋縁部(円形では半円部)が、適宜温度蒸着接着剤を介して基板に固着されるが、この場合予め基板の重ね合わせ面側にプレート片の外形に対応したプレート片用の溝を形成しておくのが、重ね合わせに有利であり、また当該プレート片用の非固着辺縁対応部の一部に突出する溝を連続形成し、切り込み、円形、半円形、長方形うち抜きの試料受けエリアを形成するとともに、そこより試料が毛細管現象により混合室に入り易いように溝を形成しておいてもよい。この試料受エリアが存在すると、余分の試料及び試薬がこの部分にたまり外部に漏れない。
【0020】
混合室には試薬等の必要量確保台枠を形成するか、試薬を入れておくと、試験や試薬の注入操作が簡単となり、予め試薬を入れておいたものに試料を入れ、操作・混合すると便利で途中での煩わしい操作は不必要となり早い反応を得ることができる。
【0021】
また、基板に所望形状、例えば正方形、長方形、三角形、円形等の打抜き部を形成し、裏側を透明又は反応色に応じ黒色等のカバー材で塞ぎ、混合室となる打抜き部に予め試薬を入れ、表側をプレート片(打抜き部よりやや大きいプレート片)により塞ぐ。このとき、試薬が外部に漏れ出さないようにするため、プレート片の上をさらに再接着性(ウェット性の)透明又は着色試料,試薬の変質を防止するためのカバーフィルムにより覆い、開口部を塞ぎ、試料の蒸発と試料の変質を防止する。この場合、混合室の大きさや基板の厚さにより試薬の位置や量が決められる。またこの方法だと試料検体,試薬を安全に外部にまた外部から送ることが簡単に安価でできるようになる。
【0022】
基板とプレート片の重ね合わせに際しては、適宜厚さ0.1〜0.4mm程度のスペーサーを介在せしめのが、間隙容積の変化を伴う混合をより効果的に行う上で望ましく、特に凝集又は遠心時、沈殿時の固まりや凝集の大きさ、沈殿物量、沈降時の時間速度等を観察するのに都合が良い。
また基板プレート片を長方形として先端を円形にするか三角形状にしておくと、遠心沈殿した沈渣物をスポイトピペット等で撓ませて口を開き吸引すると、スピッツ試験管の代わりとなる。
【0023】
スペーサーは基板又はプレート片とは別部材で構成してもよいが、プレート片の一部を折曲げて重ねてスペーサーとしてもよい。またこのスペーサーに穴を開けたり切込を入れたりして、予め入れておく試薬を保持する枠も一緒に備えておくと試薬等の長期保存に便利である。
【0024】
また、スペーサーは、別部材で構成する場合には、吸水性材料によったり、糸状の素材で構成すれば、試料の量が誤って多過ぎた場合、その吸水作用と糸状及び試料置場の円形、長方形溝に採集量を誤ってのせ過ぎてもわき上がりこぼれ出ることはほとんどない。
【0025】
さらに、基板とプレート片又はカバー材の重ね合わせ面側に適宜試験に応じた形状の溝を適当数形成すると、内部混和混合の効果がよくなる。
【0026】
本発明の混合試験方法で使用する混合試験具は、使用前はもとより使用後に於ても異物や雑物(雑菌等)の侵入(汚染)を防止し、その保管や保存変質を防ぎ完全なものとするため、基板とプレート片との重ね合わせ面側の全体を再接着性カバーフィルムで密着・密封し、混合室の開口部を密閉できるようにするのがよい。
【0027】
さらに、本発明は材料費,各試薬費,各試料とも極めて安価又は超微量で各試験が可能であり、また後処理のための多くの経費も必要としない特性を備えていて、これからの化学的分析発色混合沈降試験に画期的な方法であらゆる分野に活用することができる。
【0028】
【実施例】
次にこの発明に係る混合試験方法で使用する混合試験具の実施例を図面に基づいて述べる。
【0029】
[実施例1]
まず、薄板基板に打抜き部を形成しこの両面をカバー材とプレート片で塞いで混合室とする。次に、この発明に係る混合試験方法で使用可能な混合試験具の例を図1及び図2により説明する。
【0030】
1は合成樹脂製の長方形の薄板基板であり、大きさは5.5cm×9.0cmで厚さは0.2mmである。なお、大きさと厚さは試験対象や試験試料数により任意に選択することができ、また弾性を有するものであればその弾性の強弱は問わず、要は撓み復元操作(屈伸操作)が可能であればどのような素材でもよい。また、縦長でも横長でもどちらでもよいが、図示したものは横長型とした。また、手で持って撓み復元操作を行わず、機械により行うような場合には、その機械に適した大きさ、形状とすることができる。
【0031】
2は混合室3を設けるために薄板基板1に形成した正方形の打抜き部であり、上辺部に試料受け4とするため半円形の突部5が形成してある。打抜き部の大きさは1.2cm×1.2cmである。図示した例では打抜き部2を2個形成したが、この数は検体数に応じて任意に選択できるが、複数設けておくことにより、一枚で各種の試験が行うことができ、同時に複数の試験具を用意する必要が無くなる。また、打抜き部の大きさも、試験対象や試薬の種類等により適宜選択でき、形状も正方形の他、長方形やその他任意の形状でよい。
【0032】
6は薄板基板1に形成した打抜き部2の裏側全面を塞ぐためのカバー材である。カバー材は弾性や可撓性を有する材料であってもよく、又はこれらの性質を全く有さないものであってもよい。ただし、薄板基板1の撓み復元操作を完全には妨げない必要がある。カバー材6は打抜き部2が完全に塞がれるように薄基板1に固着する。また、カバー材6は透明な合成樹脂材であってもよく、あるいは金属薄板であってもよく、その他任意の色彩、材料のものを選択できる。
【0033】
7は薄板基板1に形成した打抜き部2の表側を塞ぐためのプレート片である。プレート片は打抜き部2より左右上下方向にそれぞれ1mmくらい大きなものとし、打抜き部2の表側を塞ぐように薄板基板1に固着してある。プレート片7もカバー材6と同様に弾性や可撓性を有する材料であってもよく、又はこれらの性質を全く有さないものであってもよい。ただし、薄板基板1の撓み復元操作を完全には妨げない必要がある。
【0034】
また、プレート片7は透明な合成樹脂材であってもよく、あるいは金属薄板であってもよく、その他任意の色彩、材料のものを選択できる。ただし、試験結果を外部から観察可能とするため、少なくともプレート片7又はカバー材6のどちらか一方は、外部から内部が見えるような素材としておく必要がある。
【0035】
薄板基板1の打抜き部2はその裏側をカバー材6により塞がれるとともに表側をプレート片7により塞がれ、打抜き部2に混合室3が形成されることになる。そして、打抜き部2の上辺に形成した突部はプレート片7により塞がれず、試料受け4となり、この部分より混合室3内に試料が侵入可能となっている。
【0036】
8は必要に応じて試験対象に合わせて混合室3内に予め入れた試薬であり、試薬を単独で入れておいてもよいが、例えばラテックス等に含浸させておいてもよい。これらは、試薬の性状や必要量等により適宜選択する。また、試薬は混合室3内に完全固定してもよく、また非固定状態にしておいてもよい。なお、試験対象によっては、試薬8は予め混合室3に入れておかず、試験時に試料とともに混合室3に入れるようにしてもよい。
【0037】
なお、図示はしていないがカバー材6やプレート片7の混合室3に面する側に凹凸や溝等を形成しておいてもよい。このようにしておくと、試験対象によっては薄板基板1の撓み復元操作による混和(混合)の促進を図れる場合がある。
【0038】
[実施例2]
薄板基板にプレート片を重ね合わせ、プレート片の任意箇所を基板に固着し、プレート片を基板に固着していない開口箇所のうち、少なくとも一箇所の基板をプレート片の縁部より大きくして試料受けエリアとし、プレート片の上から基板とプレート片の重ね合わせ面側全体を密着・密封可能なカバーフィルムを設けた例を図3及び図4により説明する。
【0039】
1は合成樹脂製の長方形の薄板基板であり、大きさは5.5cm×9.0cmで厚さは0.1mmである。なお、大きさと厚さは実施例1と同様に試験対象や試験試料数により任意に選択できる。また弾性を有するものであればその弾性の強弱は問わず、要は撓み復元操作(屈伸操作)が可能で、化学反応に影響がなければ、どのような素材でもよいことも実施例1と同様である。
【0040】
9は薄板基板1に形成した浅い混合促進用の溝であり、この溝8の形状は、試料が内部に入り易く、また混合効果のあるものなら、図示した例のもののほか各種の形状が採用できる。また、試験対象によっては設けなくてもよい。
【0041】
10は薄板基板1とプレート片7の間に挟んで固着したスペーサーであり、これらにより混合室3が形成されている。スペーサー10は、ここから試料等が混合室3内に侵入可能なように上辺を開放した形状となっている。なお、スペーサー10はプレート辺7と同様に弾性や可撓性を有するものであってもよく、又はこれらの性質を有さないものであってもよい。また合成樹脂や金属の他、吸水性を有するような材料としてもよい。吸水性のものを使用すると、試料等が多過ぎた場合にも、混合室3からこれらのものが溢れ出ることを防止できる。
【0042】
図示した例では、薄板基板1に混合室3を2個設けるようにプレート片7を薄板基板1に2枚固着した。この混合室3は試験対象や検体数により任意の数を選択することができ、また、1枚のプレート片7の複数箇所を薄板基板1に固着することにより、1枚のプレート片7で複数の混合室3を形成するようにしてもよい。なお、混合室3が外部から観察できるように、薄板基板1又はプレート片7のどちらか一方は、少なくとも透明体等としておく。
【0043】
薄板基板1はプレート片7よりも大きいので、薄板基板1の混合室3の開口部が試料受け4となる。この部分に試料を置き混合室3内に毛細管現象により試料を侵入させる。混合室3内には実施例1と同様に予め必要に応じて試薬8を入れておく。また、試薬8を混合室3に入れる場合には、スペーサー10の一部に試薬8を固定してもよく、あるいはスペーサー10に試薬成分を含浸させておいてもよい。
【0044】
11は再接着性のカバーフィルムであり、上端を薄板基板1に固着してある。カバーフィルム11はプレート片7の上から薄基板1を密封できるようになっており、試験前の保管時においては、試薬8の蒸発等を防ぐとともに、試験後の保存に際して試料が外気と触れるのを防ぎ保存性を高める。このカバーフィルム11は必要に応じて設ければよく、また一枚のカバーフィルム11により全ての混合室3が塞がれるようにしてもよく、あるいは混合室3ごとにカバーフィルム11を設けてもよい。
【0045】
なお、図示した例ではスペーサー10を挟んで薄板基板1とプレート片7を固着したが、スペーサー10を設けずに直接薄板基板1とプレート片7を固着してもよい。また、プレート片7の薄基板1への固着箇所も試験対象等により任意に選択でき、例えば3辺やU型の他、対向する2辺を固着してもよく、あるいはL型に固着してもよく、又は1辺だけや点状に固着してもよい。
【0046】
[その他の実施例]
図5乃至図9は、本発明に係る混合試験方法に使用可能な混合試験具の他の実施例を示すものである。夫々のものは、次のような試験に適するものである。
【0047】
図5は一枚の薄板基板1に4つの混合室3とともに、試験に応じた比色標準部12を設けたものである。また、混合室3を形成しているスペーサー10は図示したように、部分的に凹凸を設け混合を促進するようにしてもある。そして、混合室3には試験内容に応じて、それぞれの混合室3に異なった試薬8を予め入れておいてもよい。
【0048】
図6は赤血球型検査用のものを示したものであり、一枚の薄基板1に上段に受血者用の3つの混合室3を並べるとともに、下段に前記3つの混合室3に対応させて供血者用の3つの比色対照用混合室13を設けてある。各混合室3,13は裏側をカバー材6により塞ぐとともに、表側もそれぞれスペーサー10を介してプレート片7で塞いである。そして、プレート片7には試料注入用の透孔14が形成してある。図示した例では透孔14は丸穴としたが、その他三角形や四角形等任意の形状とすることができる。なお、プレート片7で全面を塞がず開口部を残しておき、試料受け4としてもよい。また、透孔14を一つの混合室3に複数設け、空気抜き孔としておくと、試料によっては注入が速やかに行える。
【0049】
そして、各混合室3,13のそれぞれのスペーサー10の底部にはそれぞれ上下に対応する形で抗A血清,抗B血清,抗D血清が試薬8として順に入れてある。抗A血清,抗B血清,抗D血清の反応を調べることによりA型,B型,O型,AB型及びRH(+)(−)の血液型が特定できることは公知の通りである。図示した例では、安全のために一つの混合室3,13についてスペーサー10の底部左右の2箇所に同一の試薬8を入れておくようにしてある。なお、上記した例では混合室3を受血者用とし、比色対象用混合室13を供血者用としたが、これは逆にしてもよい。いずれにしても、後述するように上段と下段の反応が一致すればよいからである。
【0050】
図7は一枚の薄板基板1に3つの試薬室16(イ,ロ,ハ)を設けるとともに、これらの試薬室イ,ロ,ハはそれぞれ混合室4と連通させてある。また、試薬室イ及び試薬室ハと混合室の間には試薬ストッパー17が設けてあり、この試薬ストッパー17を引き抜くと試薬室イ又は試薬室ハの試薬が混合室に入るように構成してある。
【0051】
図8は縦長型の例を示したものであり、一枚の薄板基板1に、スペーサー10を挟み込むようにして、プレート片7の対向2辺を薄板基板1に接着剤15により直接固着してある。そして、試料受け4に滴下した試料や試薬はスペーサー10にそって入り込み混合室3内に侵入するようになっている。なお、図示した例では混合室3を二つ設けるものを示したが、試験対象によりこれらの数は適宜選択できるものである。
【0052】
図9も縦長型の例を示したものであり、一つの試料受け4から、中央下部底辺を丸くしたもので混合の促進を図るとともに、角度をつけて沈澱物,沈渣物を集めるためのもので、試薬室16(イ,ロ,ハ,ニ,ホ)のうち試薬室イとロの試薬8を混ぜて混合室3に送り込むことができ、また同じく試薬室ハとニの試薬8を混ぜて混合室3に送り込むことができ、試薬室トの試薬8は単独で混合室3に送り込むことができる。この一枚の混合室3で6種類以上の試薬8を親指と人差指で両面からつまんで次々に必要に応じて多種類の試薬8を予め入れておいて混合室3に連続的に送り込むためのものである。
【0053】
図10は特殊検査用のものを示したものであり、一枚の薄板基板1に3つの混合室3があり、各混合室3は裏側をカバー材6により点線で固定塞ぐとともに、表側もそれぞれプレート片7で塞いである。そして、プレート片7上部には試料注入用の透孔14が形成してある。透孔14は任意の形状が可能であり、図示した例では左より三角形、*形、円形のものを示した。また、透孔14を一つの混合室3に複数設け、空気抜き孔としておくと、試料によっては注入が速やかに行える。
【0054】
次に、上記した混合試験具を使用して本発明の混合試験法の実施方法について説明する。
【0055】
[試験方法1]
図5に示す混合試験具を使用して発色試験方法について説明する。
各混合室3の試料受け4にそれぞれ試料を滴下し、混合室3内に毛細管現象を利用して侵入させる。なお、この時基板1を曲げて混合室3の隙間を大きくして入れてもよい。また、試薬も同様にして各混合室3に入れる。
【0056】
試料と試薬が各混合室3に入ったら、薄板基板1の両端を手で挟むようにして(例えば一端を親指で他端を中指で)持ち、薄板基板1に対し屈伸運動をさせることとなる撓み復元操作を行い、試薬と試料を混合する。薄板基板1に対し撓み復元操作を行うと、混合室3の形状が変形し、隙間が大きくなったり小さくなったりして混和(混合)作用が行われるとともに、スペーサー10の形状によりなお一層混和(混合)が促進される。なお、スペーサー10の周囲はこの時空気抜けの役目をしている。
【0057】
混合操作が完了し、試薬と反応して呈色したならば、各混合室3の色を比色対照部12の色と比較対照し、結果を判定する。
【0058】
[試験方法2]
図6に示す混合試験具を使用して、被検者の血液型を検査する混合試験方法について説明する。
まず、上段の3つの混合室3に受血者から採血した血液を試料受け4に滴下又はつけ、混合室3内に毛細管現象を利用して侵入させる。また、下段の3つの比色対照用混合室13に供血者の血液を同様に試料受け4に滴下又はつけ、混合室3内に毛細管現象を利用して侵入させる。
【0059】
または3枚一組の短冊形の紙又は樹脂片を扇子状にした採血具を用意し、受血者及び供血者の耳朶にせん針ばりで傷口をつけ、わき出る血液をこの採血具で受け、その後これを開いてそれぞれの混合室3,13に差し込んでもよい。
【0060】
各混合室3,13の血液が基板1又はスペーサー10に入れられた各抗血清試薬と反応したならば、上段の受血者となる混合室3の結果を下段の供血者となる比色対照混合室13の結果と対照し、受血者と供血者の血液型を特定、上段の混合室3と下段の比色対照混合室13の凝集が一致していれば、血液型が適合していることになる。なお、カバーフィルムがある場合には、試験後に試料受け4や透孔14を塞ぐようにして全体を密封すれば、試験結果を一定期間容易にカルテ等にも保存できる。
【0061】
【発明の効果】
前記のようにこの発明に係る化学反応目視用混合試験法によれば、弾性を有する薄板基板に外部から観察可能な試薬と試料を混合するための混合室を設け、混合室に試薬及び試料を入れた後、基板を撓み復元操作をして混合室の試薬と試料を混合し、混合室を外部から観察して結果を判定するようにしたしたので、簡単にどこでも試験を行うことができるという効果を有する。
【図面の簡単な説明】
【図1】 図2の分解斜視図である。
【図2】 本発明に係る化学反応目視用混合試験方法で使用可能な混合試験具を、基板とカバー材とプレート片の3枚により構成したものを示す平面図である。
【図3】 図4の分解斜視図である。
【図4】 本発明に係る化学反応目使用混合試験方法で使用可能な混合試験具基板とカバー材の2枚により構成したものを示す平面図である。
【図5】 本発明に係る化学反応目視用混合試験方法で使用可能な混合試験具の他例を示す平面図であり、比色対照試験用のものを示したものである。
【図6】 本発明に係る化学反応目視用混合試験方法で使用可能な混合試験具の他例を示す平面図であり、赤血球型検査用のものを示したものである。
【図7】 本発明に係る化学反応目視用混合試験方法で使用可能な混合試験具の他例を示す平面図であり、一つの混合室に3つの試薬が単独に送り込めるようにしたものを示したものである。
【図8】 本発明に係る化学反応目視用混合試験方法で使用可能な混合試験具の他例を示す平面図であり、吸水性のスペーサーを挟み込んだものを示したものである。
【図9】 本発明に係る化学反応目視用混合試験方法で使用可能な混合試験具の他例を示す平面図であり、一つの混合室に複数の試薬を混合し、又は単独で送り込めるようにしたものを示したものである。
【図10】 本発明に係る化学反応目視用混合試験方法で使用可能な混合試験具の他例を示す平面図であり、特殊検査用のものを示したものである。
【符号の説明】
1 基板
2 打抜き部
3 混合室
4 試料受け
5 突部
6 カバー材
7 プレート片
8 試薬
9 溝
10 スペーサー
11 カバーフィルム
12 比較対照部
13 比較対照用混合室
14 透孔
15 接着剤
16 試薬室
17 試薬ストッパー
[0001]
[Industrial application fields]
The present invention relates to a chemical reaction visual mixing test method using an extremely small amount of a reagent and a sample. Implementation In addition, the results (mixing, agglomeration, coloring, sedimentation, precipitation, etc.) can be judged visually on the spot where they are mixed, and the test results can be easily carried in a pocket, pasted and stored in a record book, and saved. Therefore, it can be stored for a long time, and waste liquid treatment is unnecessary.
[0002]
[Prior art]
Conventionally, analysis, fractionation, and testing by chemical reactions such as mixing, color reaction, agglutination reaction, dissolution and precipitation (precipitation) reaction are generally performed on a test tube or a microplate, and a sample (analyte) and a chemical ( (Reagent) was put in and an analysis result was obtained with a vibration and stirring rod (Japanese Utility Model Publication No. 62-47967).
[0003]
[Problems to be solved by the invention]
However, the conventional method has recently become impossible to spill dangerous materials due to the waste liquid treatment facility or treatment method, and some incineration causes accidents that damage the incinerator due to high temperatures. Hazardous material has become a problem and infects the human body. In addition, when the amount of sample discarded is large, it can no longer be dealt with, and it has become unsuitable for the times, and ultra-trace analysis methods are desired, which are repeated in laboratories, test laboratories, laboratories, etc. Repeated tests are weighted year by year by their material costs and disposal methods.
[0004]
In addition, it can be easily put into a pocket anywhere in the room and can be used for ultra-trace testing and analysis, and the analysis results can be stored in a record as it is, without the need for a place, can be easily incinerated, and transportation costs are greatly reduced. Therefore, it is possible to eliminate the current situation of having to rely on a special analyzer for ultra-trace analysis, and to eliminate the dripping of dangerous samples and chemical samples and the facilities for that purpose at the same time.
[0005]
[Means for Solving the Problems]
Therefore, in order to eliminate the conventional problems, the present inventor is very convenient and easy to analyze in a very small amount, etc., regardless of the location, chemical reaction visual mixing test that can solve the processing problems together This method does not require a constant temperature bath or a low temperature bath as in the case of heating or low temperature processing, and a predetermined temperature can be easily set in a small cooler box using a palm-sized hot air chamber or dry ice. Various experiments and practical tests were repeated for the purpose of providing a chemical reaction visual mixing test method which can be obtained and can be performed very easily anywhere.
[0006]
As a result, it was found that if the capillary phenomenon and flexibility between the two plates were used, it was found that the same result as that in the test tube could be obtained with a very small amount, and the present invention was completed. Interest It has been confirmed that it can be used at the same time, and it has been found that this method saves considerable resources, labor costs and processing costs.
[0007]
Therefore, the chemical reaction visual mixing test method according to the present invention is provided with a mixing chamber for mixing a reagent and a sample that can be observed from the outside on a thin plate substrate having elasticity, and after the reagent and the sample are put in the mixing chamber, the substrate This is characterized in that the operation of bending is performed to mix the reagent and sample in the mixing chamber, and the result is determined by observing the mixing chamber from the outside.
[0008]
[0009]
[0010]
[Action]
The chemical reaction visual mixing test method according to the present invention is a capillary test method in which a reagent and a sample are placed in a mixing chamber (mainly a laminate of two thin plates) provided on an elastic flexible thin plate substrate so that it can be observed from the outside. Use the phenomenon or directly inject, then hold the substrate with both fingers sandwiched between fingers, then flex the substrate (restoration operation) to mix the reagent and sample in the mixing chamber, and observe the mixing chamber from the outside Then, the result (mixing, aggregation, color development, sedimentation, precipitation, etc.) is determined.
[0011]
In addition, the reagent is put into a mixing chamber of an elastic thin plate substrate provided with a mixing chamber into which a sample can enter from the outside into the chamber from outside, using a capillary phenomenon from a predetermined location, or any other arbitrary After that, the substrate is bent and restored to mix the reagent and sample in the mixing chamber, and the result is determined by observing the mixing chamber from the outside. Then, the opening is hermetically held and stored with a cover film.
[0012]
The mixing chamber is formed by superimposing a plate piece on a thin plate substrate having elasticity and fixing an arbitrary portion of the plate piece to the substrate, or forming a punched portion having a desired shape on a thin substrate having elasticity. The entire surface on the back side is closed with a cover material, and the front side is closed with an arbitrary area plate piece, or the entire surface on the front side is closed with a plate piece, and the plate piece or the cover material is provided with a through hole having a desired shape leading to the mixing chamber.
[0013]
The material of the elastic thin plate substrate is not particularly limited as long as it is elastic and can be deformed. For example, a synthetic resin thin plate is convenient, and a waterproof paper coated with a synthetic resin is used. Alternatively, a thin metal plate, a silicon coated plate, or the like can be used.
[0014]
The size, thickness, and shape of the thin plate substrate are not limited, but may be determined by the number of tests, tests for performing an analytical reaction, and the number of samples, and can be increased to 100 samples or 200 samples at a time. In a size that allows one to 300 samples to be bent (stretching) by pressing both ends of the thin plate substrate with one or both hands, naturally for a small sample, a base of about 0.05 to 0.2 mm, For 300 specimens, a base of about 0.2 to 0.5 mm, especially a business card size or telephone card size, is desirable for a small amount test (6 to 8 item inspection), and its thickness is about 0.05 to 0.5 mm. It is easy to use for many chemical reactions.
[0015]
In addition, the substrate should match the reaction color and use a color opposite to that of the reaction, and a black substrate or the like is used for white cohesive color development. Further, if a streak or a cut portion is put in the base in accordance with the plate piece, a bending effect can be obtained, and a reaction to a large amount of reaction sample is easy.
[0016]
On the other hand, the material of the plate piece does not necessarily require elasticity or flexibility, but in order to efficiently change the volume of the gap between the substrate and the plate piece, it is preferable that the flexibility is rather small or not. Since the substrate is large, it is easy to bend, but the plate piece is small and difficult to bend, so a synthetic resin thin plate is convenient. Further, the plate piece itself may be transparent so that the mixing and mixing state can be observed from the outside, or may be black or lightly colored so that aggregation, coloring (coloring), and sedimentation (precipitation) reaction can be easily seen.
[0017]
In addition, the size of this plate piece may be the same as the substrate, but usually multiple pieces smaller than the substrate are used, and each plate is stacked and fixed separately for each reaction. This is advantageous in that the test can be performed.
[0018]
In addition, the shape of the plate piece does not matter, but it is advantageous to obtain a square shape in order to easily select the fixing site and to obtain an efficient change in the gap volume accompanying the bending / restoring operation of the substrate. Even with inverted triangles and rectangles of considerable length, the mixing of the contents can be forced to stir, but rather better than mixing in a test tube. The thickness of the plate piece is about 0.05 mm to 0.5 mm as in the case of the substrate, and may be thick when there are many test specimens and thin when there are few test specimens.
[0019]
In order to fix the plate piece to the substrate, it is only necessary to fix any part. For example, when the plate piece is rectangular or rectangular, one edge, two edges, three edges, four edges, and The back cover edge portion (semicircle portion in the case of a circle) is appropriately fixed to the substrate via a temperature-deposited adhesive. In this case, a groove for the plate piece corresponding to the outer shape of the plate piece on the overlapping surface side of the substrate in advance. It is advantageous to overlap, and a groove projecting in a part of the non-fixed edge corresponding portion for the plate piece is continuously formed, and a cut, circular, semi-circular, rectangular hollow is formed. In addition to forming the sample receiving area, a groove may be formed so that the sample can easily enter the mixing chamber by capillary action. When this sample receiving area exists, excess samples and reagents accumulate in this portion and do not leak outside.
[0020]
Forming a frame for securing the necessary amount of reagents, etc. in the mixing chamber or placing reagents makes it easy to perform tests and reagent injection operations. Then, a convenient and troublesome operation on the way is unnecessary, and a quick reaction can be obtained.
[0021]
In addition, a punching part of a desired shape, for example, square, rectangle, triangle, or circle, is formed on the substrate, the back side is covered with a cover material such as black or black according to the reaction color, and a reagent is previously placed in the punching part that becomes the mixing chamber. The front side is closed with a plate piece (a plate piece slightly larger than the punched portion). At this time, in order to prevent the reagent from leaking outside, the top of the plate piece is further covered with a re-adhesive (wet) transparent or colored sample, and a cover film for preventing the reagent from being altered, and the opening is covered. Block and prevent sample evaporation and sample alteration. In this case, the position and amount of the reagent are determined by the size of the mixing chamber and the thickness of the substrate. In addition, this method makes it possible to easily and inexpensively send sample specimens and reagents to the outside and from the outside.
[0022]
When stacking the substrate and plate pieces, insert a spacer with a thickness of about 0.1 to 0.4 mm as appropriate. Ru This is desirable for more effective mixing with changes in the pore volume, especially for observing the agglomeration or centrifugation, the size and size of agglomerates during sedimentation, the amount of sediment, the time rate during sedimentation, etc. convenient.
In addition, if the substrate plate piece is rectangular and the tip is round or triangular, if the sediment deposited by centrifugation is bent with a dropper pipette, the mouth is opened and sucked, it becomes a substitute for a Spitz test tube.
[0023]
The spacer may be constituted by a member different from the substrate or the plate piece, but the plate piece may be folded and overlapped to form a spacer. In addition, it is convenient for long-term storage of reagents and the like by making a hole or a notch in the spacer and providing a frame for holding a reagent to be put in advance.
[0024]
In addition, when the spacer is made of a separate member, it is made of a water-absorbing material or made of a thread-like material. Even if the amount collected in the rectangular groove is mistakenly set, it will hardly spill out.
[0025]
Furthermore, if an appropriate number of grooves having a shape corresponding to the test is appropriately formed on the overlapping surface side of the substrate and the plate piece or the cover material, the effect of internal mixing and mixing is improved.
[0026]
Of the present invention Used in mixed test methods In order to prevent the intrusion (contamination) of foreign matter and other foreign matters (miscellaneous bacteria, etc.) both before and after use, and to prevent the storage and preservation alteration, the mixed test device is perfect for the substrate and plate pieces. It is preferable to close and seal the entire overlapping surface side with a re-adhesive cover film so that the opening of the mixing chamber can be sealed.
[0027]
Furthermore, the present invention has characteristics that each test can be carried out at a very low cost or in a very small amount for each material cost, each reagent cost, and each sample, and does not require a lot of cost for post-processing. It can be used in various fields by an epoch-making method for color analysis and mixed sedimentation test.
[0028]
【Example】
Next, an example of a mixing test device used in the mixing test method according to the present invention will be described with reference to the drawings.
[0029]
[Example 1]
First, a punched part is formed on a thin substrate, and both sides are closed with a cover material and a plate piece, To do. next, An example of a mixing test device that can be used in the mixing test method according to the present invention will be described with reference to FIGS.
[0030]
Reference numeral 1 denotes a rectangular thin plate substrate made of synthetic resin having a size of 5.5 cm × 9.0 cm and a thickness of 0.2 mm. The size and thickness can be arbitrarily selected according to the test object and the number of test samples. In addition, if it has elasticity, it can be flexibly restored (bending and stretching) regardless of its elasticity. Any material is acceptable. Further, although it may be either vertically long or horizontally long, the illustrated one is a horizontally long type. In addition, when it is carried out by a machine without holding it by hand and performing the bending restoring operation, the size and shape suitable for the machine can be obtained.
[0031]
Reference numeral 2 denotes a square punching portion formed on the thin plate substrate 1 for providing the mixing chamber 3, and a semicircular protrusion 5 is formed on the upper side portion to form the sample receiver 4. The size of the punched part is 1.2 cm × 1.2 cm. In the illustrated example, two punched portions 2 are formed, but this number can be arbitrarily selected according to the number of specimens, but by providing a plurality, it is possible to perform various tests on a single sheet, There is no need to prepare a test tool. Further, the size of the punched portion can be appropriately selected depending on the test object, the type of the reagent, and the like, and the shape may be a rectangle, a rectangle, or any other shape.
[0032]
Reference numeral 6 denotes a cover material for closing the entire back side of the punched portion 2 formed on the thin plate substrate 1. The cover material may be a material having elasticity and flexibility, or may not have these properties at all. However, it is necessary not to completely prevent the bending restoration operation of the thin substrate 1. The cover material 6 is thin so that the punched portion 2 is completely closed. Board It adheres to the substrate 1. The cover material 6 may be a transparent synthetic resin material or a metal thin plate, and any other color and material can be selected.
[0033]
Reference numeral 7 denotes a plate piece for closing the front side of the punched portion 2 formed on the thin plate substrate 1. The plate pieces are each about 1 mm larger than the punched portion 2 in the horizontal and vertical directions, and are fixed to the thin plate substrate 1 so as to close the front side of the punched portion 2. The plate piece 7 may also be made of a material having elasticity and flexibility like the cover material 6, or may have no such property at all. However, it is necessary not to completely prevent the bending restoration operation of the thin substrate 1.
[0034]
Further, the plate piece 7 may be a transparent synthetic resin material or may be a metal thin plate, and any other color and material can be selected. However, in order to make the test result observable from the outside, at least one of the plate piece 7 and the cover material 6 needs to be made of a material that allows the inside to be seen from the outside.
[0035]
The punched portion 2 of the thin plate substrate 1 is closed on the back side by the cover material 6 and the front side is closed by the plate piece 7, so that the mixing chamber 3 is formed in the punched portion 2. The protrusion formed on the upper side of the punched portion 2 is not blocked by the plate piece 7 and becomes the sample receiver 4, and the sample can enter the mixing chamber 3 from this portion.
[0036]
Reference numeral 8 denotes a reagent previously placed in the mixing chamber 3 according to the test object as required. The reagent may be put alone, but it may be impregnated with, for example, latex. These are appropriately selected depending on the properties of the reagent and the required amount. In addition, the reagent may be completely fixed in the mixing chamber 3 or may be left unfixed. Depending on the test object, the reagent 8 may not be put in the mixing chamber 3 in advance, but may be put in the mixing chamber 3 together with the sample during the test.
[0037]
In addition, although not shown in figure, you may form an unevenness | corrugation, a groove | channel, etc. in the side which faces the mixing chamber 3 of the cover material 6 or the plate piece 7. FIG. In this way, depending on the test object, the mixing (mixing) may be promoted by the bending restoration operation of the thin plate substrate 1 in some cases.
[0038]
[Example 2]
A plate piece is superimposed on a thin plate substrate, an arbitrary portion of the plate piece is fixed to the substrate, and at least one of the openings where the plate piece is not fixed to the substrate is made larger than the edge of the plate piece. An example in which a cover film is provided as a receiving area, and can cover and seal the entire overlapping surface side of the substrate and the plate piece from above the plate piece will be described with reference to FIGS.
[0039]
Reference numeral 1 denotes a rectangular thin plate substrate made of synthetic resin having a size of 5.5 cm × 9.0 cm and a thickness of 0.1 mm. The size and thickness can be arbitrarily selected according to the test object and the number of test samples as in the first embodiment. As long as it has elasticity, any material can be used as long as it can be bent and restored (bending and stretching operation) and does not affect the chemical reaction. It is.
[0040]
9 is a shallow groove for promoting mixing formed on the thin substrate 1, and the groove 8 has various shapes other than the example shown in the figure as long as the sample can easily enter inside and has a mixing effect. it can. Further, it may not be provided depending on the test object.
[0041]
Reference numeral 10 denotes a spacer fixed between the thin plate substrate 1 and the plate piece 7, and the mixing chamber 3 is formed by these spacers. The spacer 10 has a shape with an open upper side so that a sample or the like can enter the mixing chamber 3 from here. The spacer 10 may be elastic or flexible like the plate side 7, or may not have these properties. In addition to synthetic resin and metal, a material having water absorption may be used. If a water-absorbing material is used, even if there are too many samples, these can be prevented from overflowing from the mixing chamber 3.
[0042]
In the illustrated example, two plate pieces 7 are fixed to the thin plate substrate 1 so that two mixing chambers 3 are provided on the thin plate substrate 1. Any number of the mixing chambers 3 can be selected depending on the test object and the number of specimens, and a plurality of one plate piece 7 can be selected by fixing a plurality of plate pieces 7 to the thin plate substrate 1. Alternatively, the mixing chamber 3 may be formed. Note that at least one of the thin plate substrate 1 and the plate piece 7 is at least a transparent body so that the mixing chamber 3 can be observed from the outside.
[0043]
Since the thin plate substrate 1 is larger than the plate piece 7, the opening of the mixing chamber 3 of the thin plate substrate 1 becomes the sample receiver 4. A sample is placed in this portion, and the sample is allowed to enter the mixing chamber 3 by capillary action. In the mixing chamber 3, a reagent 8 is placed in advance as necessary in the same manner as in the first embodiment. When the reagent 8 is put into the mixing chamber 3, the reagent 8 may be fixed to a part of the spacer 10, or the spacer 10 may be impregnated with a reagent component.
[0044]
Reference numeral 11 denotes a re-adhesive cover film, the upper end of which is fixed to the thin plate substrate 1. The cover film 11 is thin from the top of the plate piece 7 Board The substrate 1 can be sealed, and during storage before the test, the reagent 8 is prevented from evaporating and the like, and the sample is prevented from coming into contact with the outside air during storage after the test, thereby improving the storage stability. The cover film 11 may be provided as necessary, and all the mixing chambers 3 may be closed by one cover film 11, or the cover film 11 may be provided for each mixing chamber 3. Good.
[0045]
In the illustrated example, the thin plate substrate 1 and the plate piece 7 are fixed with the spacer 10 interposed therebetween, but the thin plate substrate 1 and the plate piece 7 may be directly fixed without providing the spacer 10. In addition, the thin plate piece 7 Board The location to be fixed to the substrate 1 can also be selected arbitrarily depending on the test object, for example, it may be fixed to two opposite sides in addition to the three sides or the U shape, or may be fixed to the L shape, or only one side. Or it may be fixed in the form of dots.
[0046]
[Other Examples]
5 to 9 show another embodiment of a mixing test device that can be used in the mixing test method according to the present invention. Each one is suitable for the following tests.
[0047]
FIG. 5 shows a single thin plate substrate 1 with four mixing chambers 3 and a colorimetric standard portion 12 corresponding to the test. In addition, as shown in the figure, the spacer 10 forming the mixing chamber 3 may be partially uneven to promote mixing. Then, different reagents 8 may be previously placed in the mixing chambers 3 in the mixing chambers 3 according to the test contents.
[0048]
Fig. 6 shows an erythrocyte type test. Board Three mixing chambers 3 for blood recipients are arranged on the upper side of the substrate 1, and three colorimetric contrast mixing chambers 13 for blood donors are provided on the lower side so as to correspond to the three mixing chambers 3. Each of the mixing chambers 3 and 13 is covered with a cover member 6 on the back side, and the front side is also closed with a plate piece 7 via a spacer 10. The plate piece 7 has a through hole 14 for sample injection. In the illustrated example, the through-hole 14 is a round hole, but may be any other shape such as a triangle or a quadrangle. The plate piece 7 may be used as the sample receiver 4 without blocking the entire surface and leaving an opening. In addition, if a plurality of through holes 14 are provided in one mixing chamber 3 and are used as air vent holes, injection can be performed quickly depending on the sample.
[0049]
Then, anti-A serum, anti-B serum, and anti-D serum are sequentially placed as reagents 8 at the bottoms of the spacers 10 of the mixing chambers 3 and 13 in a form corresponding to the top and bottom. It is known that blood types of A type, B type, O type, AB type and RH (+) (-) can be identified by examining the reactions of anti-A serum, anti-B serum and anti-D serum. In the illustrated example, the same reagent 8 is put in two places on the left and right sides of the bottom of the spacer 10 for one mixing chamber 3 and 13 for safety. In the above-described example, the mixing chamber 3 is for the blood recipient and the colorimetric object mixing chamber 13 is for the blood donor, but this may be reversed. In any case, as will be described later, it is sufficient that the reactions in the upper and lower stages coincide.
[0050]
In FIG. 7, three reagent chambers 16 (b, b, c) are provided on one thin plate substrate 1, and these reagent chambers a, b, c are respectively communicated with the mixing chamber 4. In addition, a reagent stopper 17 is provided between the reagent chamber A and the reagent chamber C and the mixing chamber. When the reagent stopper 17 is pulled out, the reagent in the reagent chamber A or the reagent chamber C enters the mixing chamber. is there.
[0051]
FIG. 8 shows an example of a vertically long type, in which two opposite sides of the plate piece 7 are directly fixed to the thin plate substrate 1 with an adhesive 15 so as to sandwich the spacer 10 between the thin plate substrates 1. is there. The sample or reagent dropped on the sample receiver 4 enters along the spacer 10 and enters the mixing chamber 3. In the illustrated example, two mixing chambers 3 are shown. However, the number of the mixing chambers 3 can be appropriately selected depending on the test object.
[0052]
FIG. 9 also shows an example of a vertically long type, in which the bottom of the center is rounded from one sample receptacle 4 to promote mixing, and to collect sediment and sediment at an angle. In the reagent chamber 16 (b, b, c, d, e), the reagent chamber a and the reagent 8 can be mixed and sent to the mixing chamber 3, and the reagent chamber c and the reagent 8 can be mixed. The reagent 8 in the reagent chamber can be sent to the mixing chamber 3 alone. In this single mixing chamber 3, six or more types of reagents 8 are pinched from both sides with the thumb and index finger, and various types of reagents 8 are put in advance one after another as necessary to continuously feed them into the mixing chamber 3. Is.
[0053]
FIG. 10 shows a special inspection. One thin plate substrate 1 has three mixing chambers 3. Each mixing chamber 3 is fixedly closed by a dotted line on the back side with a cover material 6, and the front side is also respectively shown. The plate piece 7 is closed. A through hole 14 for sample injection is formed in the upper part of the plate piece 7. The through-hole 14 can have an arbitrary shape. In the illustrated example, a triangular shape, a * shape, and a circular shape are shown from the left. In addition, if a plurality of through holes 14 are provided in one mixing chamber 3 and are used as air vent holes, injection can be performed quickly depending on the sample.
[0054]
Next, the mixing test of the present invention using the above-described mixing test device. Direction A method for implementing the law will be described.
[0055]
[Test Method 1]
A color development test method will be described using the mixed test device shown in FIG.
A sample is dropped into the sample receiver 4 of each mixing chamber 3 and enters the mixing chamber 3 by utilizing capillary action. At this time, the substrate 1 may be bent so that the gap between the mixing chambers 3 is increased. In addition, the reagent is put in each mixing chamber 3 in the same manner.
[0056]
When the sample and the reagent enter each mixing chamber 3, hold the both ends of the thin plate substrate 1 by hand (for example, one end with the thumb and the other end with the middle finger), and bend and stretch the thin plate substrate 1. Operate and mix the reagent and sample. When the bending recovery operation is performed on the thin plate substrate 1, the shape of the mixing chamber 3 is deformed, the gap is increased or decreased, and the mixing (mixing) action is performed. Mixing) is promoted. In addition, the periphery of the spacer 10 serves as an air vent at this time.
[0057]
When the mixing operation is completed and reacts with the reagent to develop a color, the color of each mixing chamber 3 is compared with the color of the colorimetric contrast unit 12 and the result is judged.
[0058]
[Test Method 2]
A mixed test method for examining the blood type of a subject using the mixed test device shown in FIG. 6 will be described.
First, blood collected from a blood recipient is dropped or attached to the sample receiver 4 into the upper three mixing chambers 3 and is allowed to enter the mixing chamber 3 by utilizing capillary action. Similarly, the blood of the blood donor is dropped or applied to the sample receiver 4 in the three colorimetric contrast mixing chambers 13 at the lower stage, and is allowed to enter the mixing chamber 3 by utilizing capillary action.
[0059]
Alternatively, prepare a blood collection tool in the form of a fan made of a set of three strips of paper or resin pieces, put a wound on the earlobe of the recipient and the donor with a needle needle, and receive the blood to be pumped with this blood collection tool Thereafter, it may be opened and inserted into the respective mixing chambers 3 and 13.
[0060]
If the blood in each of the mixing chambers 3 and 13 reacts with each antiserum reagent placed in the substrate 1 or the spacer 10, the result of the mixing chamber 3 serving as the upper blood recipient is used as a colorimetric control serving as the lower blood donor. In contrast to the results in the mixing chamber 13, if the blood type of the recipient and the donor is specified and the aggregation in the upper mixing chamber 3 and the lower colorimetric control mixing chamber 13 match, the blood type is matched. Will be. In the case where there is a cover film, the test result can be easily stored in a medical record or the like for a certain period of time by sealing the whole so as to close the sample receiver 4 and the through hole 14 after the test.
[0061]
【The invention's effect】
As mentioned above, chemical reaction visual mixing test according to the present invention Direction According to the method, an elastic thin plate substrate is provided with a mixing chamber for mixing a reagent and a sample that can be observed from the outside, and after the reagent and the sample are put into the mixing chamber, the substrate is bent and a restoring operation is performed. Since the reagent and the sample were mixed and the result was judged by observing the mixing chamber from the outside, the test can be easily performed anywhere.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of FIG.
FIG. 2 is a plan view showing a mixing test tool that can be used in the chemical reaction visual mixing test method according to the present invention, which is composed of a substrate, a cover material, and a plate piece.
FIG. 3 is an exploded perspective view of FIG. 4;
FIG. 4 Use of a chemical reaction according to the present invention Can be used in mixed test methods Mixed test equipment so It is a top view which shows what was comprised by two sheets of a board | substrate and a cover material.
FIG. 5 is for visualizing a chemical reaction according to the present invention. Can be used in mixed test methods It is a top view which shows the other example of a mixing test device, and shows the thing for a colorimetric contrast test.
FIG. 6 is for visualizing a chemical reaction according to the present invention. Can be used in mixed test methods It is a top view which shows the other example of a mixing test device, and shows the thing for erythrocyte type | mold test | inspection.
FIG. 7 is for visualizing a chemical reaction according to the present invention. Can be used in mixed test methods It is a top view which shows the other example of a mixing test device, and shows what made it possible to send three reagents independently to one mixing chamber.
FIG. 8 is for visualizing a chemical reaction according to the present invention. Can be used in mixed test methods It is a top view which shows the other example of a mixing test device, and shows what pinched | interposed the water absorbing spacer.
FIG. 9 is a chemical reaction visual inspection according to the present invention. Can be used in mixed test methods It is a top view which shows the other example of a mixing test device, and shows what was made to mix a some reagent in one mixing chamber, or to send it independently.
FIG. 10 is for visualizing a chemical reaction according to the present invention. Can be used in mixed test methods It is a top view which shows the other example of a mixed test device, and shows the thing for special tests.
[Explanation of symbols]
1 Substrate
2 Punching part
3 mixing chamber
4 Sample holder
5 Projections
6 Cover material
7 Plate pieces
8 Reagents
9 groove
10 Spacer
11 Cover film
12 Comparison part
13 Mixing chamber for comparison
14 Through hole
15 Adhesive
16 Reagent room
17 Reagent stopper

Claims (1)

弾性を有する薄板基板に、試薬と試料を混合するための、外部から観察可能な混合室を設け、前記混合室に試薬及び試料を入れた後、前記薄板基板を撓ませまた復元操作することにより混合室の試薬と試料を混合し、前記混合室を外部から観察して結果を判定するようにしたしたことを特徴とする化学反応目視用混合試験方法。An elastic thin plate substrate is provided with an externally observable mixing chamber for mixing the reagent and sample, and after the reagent and sample are put into the mixing chamber, the thin plate substrate is bent and restored. A chemical reaction visual mixing test method characterized in that a reagent and a sample in a mixing chamber are mixed, and the result is determined by observing the mixing chamber from the outside.
JP33093494A 1994-12-09 1994-12-09 Chemical reaction visual mixing test method Expired - Fee Related JP3712007B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP33093494A JP3712007B2 (en) 1994-12-09 1994-12-09 Chemical reaction visual mixing test method
GB9525409A GB2295892A (en) 1994-12-09 1995-12-07 Device for visual observation of chemical reactions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33093494A JP3712007B2 (en) 1994-12-09 1994-12-09 Chemical reaction visual mixing test method

Publications (2)

Publication Number Publication Date
JPH08160031A JPH08160031A (en) 1996-06-21
JP3712007B2 true JP3712007B2 (en) 2005-11-02

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TW517154B (en) 1999-08-11 2003-01-11 Asahi Chemical Ind Analyzing cartridge and liquid feed control device
DE10002500A1 (en) * 2000-01-21 2001-07-26 Univ Albert Ludwigs Freiburg Capillary action mixer for mixing components which are analyzed during reaction, e.g. in DNA sequencing, uses capillary action to feed the reactants into the mixer
DE10057895B4 (en) * 2000-11-22 2009-06-18 peS Gesellschaft für medizinische Diagnosesysteme mbH Apparatus and method for sample preparation of liquid samples
JP4012169B2 (en) * 2003-05-09 2007-11-21 独立行政法人科学技術振興機構 Instruments for measuring multiple types of ions
US7854897B2 (en) 2003-05-12 2010-12-21 Yokogawa Electric Corporation Chemical reaction cartridge, its fabrication method, and a chemical reaction cartridge drive system
FR2961310B1 (en) 2010-06-09 2012-07-27 Centre Nat Rech Scient DEVICE AND METHOD FOR MEASURING THE PROPERTIES OF A COMPLEX MEDIUM BY ANALYZING THE EVOLUTION OF RETROGENED AND / OR TRANSMITTED LIGHT.
CN107922639A (en) * 2015-08-17 2018-04-17 株式会社普利司通 IR fiber complex, rubber resin complex and use its pneumatic tire

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