JP2016506509A - 流体ストップを備える流体システム - Google Patents
流体ストップを備える流体システム Download PDFInfo
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Abstract
Description
a)上述された種類の流体システム(即ち、流体ストップを介して接続された第1のチャネルと第2のチャネルとを有する流体システムであって、可撓性要素の内面が、流体ストップを越える媒質の流れを可能にするために前記可撓性要素の外面に対する圧力によって変形可能である流体システム)用の収容空間と、
b)収容空間内に位置された流体システムの可撓性要素の外面に圧力を制御可能に印加するためのアクチュエータと
を備える装置に関する。
− 例えば長方形断面を有する幅wの空洞として実現された第1のチャネル110。第1のチャネル110は、典型的には、その左側で、前記第1のチャネル内に試料媒質を導入するための更なる構成要素(図示せず)に接続される。第1のチャネルは、任意選択的に、その右端に、(輸送されるべき媒質に対して)高い毛細管特性の領域114を備える。前記の高い毛細管特性は、例えば、より低いチャネル高さ及び/又は特定の表面コーティングによって実現され得る。
− 第1のチャネルと一直線上に配設されるが、幅Δのギャップによって第1のチャネルから離隔された第2のチャネル130。第2のチャネル130は、その右端で、輸送される媒質の更なる処理が行われる更なる構成要素(図示せず)(例えば標的分子のための捕捉部位を有する試料チャンバ)に接続される。
− 第1のチャネル110と第2のチャネル130との間の前述のギャップ内に配設された流体ストップ120。流体ストップ120は、第1のチャネル110内で生じる媒質の流れ又は輸送を遮断するように設計される。特に、これは、例えば流体ストップのより大きな内寸、適切な表面コーティング(例えば水性媒質が輸送される場合には疎水性コーティング)、及び/又はメニスカスのピニング若しくは移動の妨げをもたらす構造による、流体ストップの低い毛細管特性によって実現され得る。
− 貯留部の拡大された円形の上部区域324につながるホットエンボス加工された(親水性の)第1のチャネル310を有する上部箔301。更に、この箔301には小さな空気孔325が提供される(これは、離れた位置に配設されるべきである。さもないと、貯留部を満たす液体によって閉塞され得る)。
− 円形穴(上記の貯留部の中央区域を形成する)を有する接合層302。この層は、例えば接着剤又は両面テープから成っていてよい。
− 第2のチャネル330、貯留部の底部区域326、(親水性の)突起又はピン322、及び凹部327を有する射出成形(プラスチック)部品。凹部327は、上部箔301が下に押されたときに、上部箔301を受け入れるのに有用であり得る。これは、ピン322の上部が、射出成形部品303の上面の高さにあるか、又はそれよりも下にある場合に必要である。また、部品303が貯留部344の上部に触接して貯留部344を閉じる危険を防止する。
− 試料進入ポート又は入口部分(例えば、注射針、箔、皮膚接着剤を含む)、
− 試料又はアッセイチャンバ、
− 吸引メカニズム(例えば、予備真空、真空生成モジュール)、
− 抽出ポート(例えば隔膜、DAUへの出口)。
− チャネル、
− 任意選択的な弁機構(例えば、毛細管ストップ、透過性粘弾性媒質、解放可能な機械的障害物、通気孔を有するDAU内でのガス閉じ込め、ダイオード弁)。
− 試料入口ポート、
− チャネル、
− 輸送メカニズム(例えば、毛細管力、重力、予備真空、生成された真空、機械的な可変容量型ポンプ)、
− アッセイチャンバ(例えば、磁性ナノ粒子、バイオセンシング表面)。
− 試料濾過、
− 試薬保管及び解放、
− 試料妥当性センサ/インジケータ。
Claims (14)
- 媒質を輸送するための流体システムであって、
− 第1のチャネルと、
− 第2のチャネルと、
− 前記第1のチャネルと前記第2のチャネルとを接続する流体ストップと、
− 内面を有する可撓性要素であって、前記流体ストップを越える媒質の流れが可能にされるように、前記可撓性要素の外面に加えられる所定の機械的圧力が前記内面の局所変形をもたらす、可撓性要素と
を備える、流体システム。 - 前記可撓性要素が、前記第1のチャネル、前記第2のチャネル、及び/又は前記流体ストップの一部を備えることを特徴とする、請求項1に記載の流体システム。
- 前記可撓性要素の前記内面の変形が、前記内面と対向する要素との間の距離を変えることを特徴とする、請求項1に記載の流体システム。
- 前記可撓性要素の前記内面及び/又は前記対向する要素が、突起を備えることを特徴とする、請求項3に記載の流体システム。
- 前記突起が、前記媒質によって濡らすことが可能である、及び/又は毛細管力によって前記媒質の輸送を可能にすることを特徴とする、請求項4に記載の流体システム。
- 前記第1のチャネル及び/又は前記第2のチャネルが、毛細管力による前記媒質の輸送を可能にすることを特徴とする、請求項1に記載の流体システム。
- 前記流体ストップが、前記第1のチャネル及び/又は前記第2のチャネルよりも低い毛細管特性を有することを特徴とする、請求項6に記載の流体システム。
- 前記流体ストップが、媒質反撥性の構成要素、又はメニスカスの少なくとも部分的なピニングのための幾何構造を備えることを特徴とする、請求項1に記載の流体システム。
- 前記流体ストップが、前記第1のチャネル及び/又は前記第2のチャネルよりも大きい内寸を有することを特徴とする、請求項1に記載の流体システム。
- 並列の複数のチャネル及び/又は濾過要素を備えることを特徴とする、請求項1に記載の流体システム。
- カートリッジ内に組み込まれることを特徴とする、請求項1に記載の流体システム。
- − 請求項1に記載の流体システム用の収容空間と、
− 前記収容空間内の流体システムの前記可撓性要素の前記外面に圧力を制御可能に印加するためのアクチュエータと
を備える、処理装置。 - 流体システム内で第1のチャネルと第2のチャネルとの間の流体ストップを越える媒質の流れを制御するための方法であって、前記流体ストップを越える前記媒質の流れを可能にするために可撓性要素を変形することを含む、方法。
- 分子診断、生物学的試料分析、化学的試料分析、食品分析、及び/又は法科学分析用の請求項1に記載の流体システム又は請求項12に記載の処理装置の使用。
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