JP6529667B2 - 検出区域における粒子凝集の制御を備える流体検出 - Google Patents
検出区域における粒子凝集の制御を備える流体検出 Download PDFInfo
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Description
一例として血液のような流体の様々な特質を検出するための様々な検出デバイスが現時点で利用可能である。場合によっては、係る検出デバイスは大きくて、複雑で高価であることが多い。係る検出デバイスの多くは、大量のサンプル及び/又は高度希釈したサンプルを必要とする。
図1は、例示的なマイクロ流体検出システム20を模式的に示す。マイクロ流体検出システム20は、試験されている又は検出区域を横切って診断される流体を導くマイクロ流体チャネルを含む。本開示のために、「マイクロ流体構成要素」の場合と同様な用語「マイクロ流体」は、構成要素のサイズ又はスケーリングを意味する。マイクロ流体構成要素は、ナノリットル又はピコリットルを含むマイクロリットル又はそれ未満ほどの流体量で処理する構造体またはハードウェアを含む。幾つかの具現化形態において、当該流体量で処理する構造体またはハードウェアは、ミリメートル又はサブミリメートルほどの最大寸法を有する。例えば、一具現化形態において、システム20は、2mm×1mmであるチップを利用し、この場合、チップは、マイクロリットル量入るリザーバの下にあり、チップ自体がサブマイクロリットル量の流体を導き且つ当該流体と相互作用する。
Claims (15)
- チャンバと、
前記チャンバに接続されたノズルと、
前記ノズルに近接し、前記ノズルを介して前記チャンバから流体を噴出するための流体ドライバと、
マイクロ流体通路と、
前記マイクロ流体通路および前記チャンバを接続する入口と、
前記入口に近接し、前記入口内の流体検出区域内で流体を検出するためのセンサと、
前記流体検出区域内での粒子の凝集を制御するための粒子凝集リミッタとを含み、
前記粒子凝集リミッタが、前記流体検出区域内に捕らえられた粒子を押しのけるための慣性ポンプを含む、装置。 - 前記粒子凝集リミッタが、粒子フィルタリング特徴要素を含み、前記粒子フィルタリング特徴要素は、前記流体検出区域と前記マイクロ流体通路との間に、又は前記流体検出区域と前記ノズルとの間に、又は前記流体検出区域の両側に設けられる、請求項1に記載の装置。
- 前記センサ及び前記流体ドライバを支持する第1の層と、
前記ノズルが貫通して延在する第2の層と、
前記第1の層と前記第2の層との間に挟まれた第3の層とを含み、
前記第3の層が前記粒子フィルタリング特徴要素を形成する、請求項2に記載の装置。 - 前記慣性ポンプは、前記入口のマイクロ流体通路側の口と前記マイクロ流体通路との間に、又は前記入口のチャンバ側の口と前記ノズルとの間に、又は前記流体検出区域内に位置する、請求項1〜3の何れか1項に記載の装置。
- 前記粒子凝集リミッタが、前記流体検出区域内に捕らえられた粒子を押しのけるための第2の慣性ポンプを更に含み、前記慣性ポンプが前記入口のチャンバ側の口と前記ノズルとの間に位置し、前記第2の慣性ポンプが前記入口のマイクロ流体通路側の口と前記マイクロ流体通路との間に位置する、請求項1〜3の何れか1項に記載の装置。
- 前記粒子凝集リミッタが、前記流体検出区域内に捕らえられた粒子を押しのけるための第3の慣性ポンプを更に含み、前記第3の慣性ポンプは、前記入口のマイクロ流体通路側の口と前記マイクロ流体通路との間に位置する、請求項5に記載の装置。
- 粒子の捕捉を検出するための第2のセンサを更に含み、前記第2のセンサは、前記流体検出区域と前記マイクロ流体通路との間に設けられ、前記第2及び第3の慣性ポンプが前記第2のセンサからの信号に基づいて付勢される、請求項6に記載の装置。
- 前記チャンバに接続された第2のノズル、及び前記第2のノズルに近接し、前記第2のノズルを介して前記チャンバから流体を噴出するための第2の対応する流体ドライバを更に含む、請求項1〜7の何れか1項に記載の装置。
- 前記チャンバに接続された第2のノズル、及び前記第2のノズルに近接し、前記第2のノズルを介して前記チャンバから流体を噴出するための第2の対応する流体ドライバ、及び前記チャンバに接続された第3のノズル、及び前記第3のノズルに近接し、前記第3のノズルを介して前記チャンバから流体を噴出するための第3の対応する流体ドライバを少なくとも更に含み、前記チャンバが前記入口から扇形に広がる、請求項1〜7の何れか1項に記載の装置。
- 前記ノズルを介して前記ドライバにより吐出される流体を収容する収集リザーバを更に含む、請求項1〜9の何れか1項に記載の装置。
- 前記粒子凝集リミッタが、
前記センサからの信号に基づいて前記慣性ポンプを付勢するためのコントローラを含む、請求項1〜10の何れか1項に記載の装置。 - ノズルを介してチャンバ内から第1の流体を吐出して、検出区域を横切って前記チャンバへ第2の流体を引き込み、
前記検出区域内で前記第2の流体を検出し、
前記検出区域内の粒子の凝集を検知し、
前記検出区域内の粒子の凝集を検知することに応じて、前記検出区域に隣接した慣性ポンプを付勢し、前記検出区域から凝集した粒子を追い出して、前記検出区域内の粒子の凝集を制御することを含む、方法。 - マイクロ流体チップであって、
サンプル貯蔵通路と、
前記サンプル貯蔵通路に接続されたマイクロ流体通路と、
チャンバと、
前記チャンバに接続されたノズルと、
前記ノズルを介して前記チャンバから流体を噴出するために前記ノズルに近接した流体ドライバと、
前記チャンバを前記マイクロ流体通路に接続する入口と、
前記入口内の検出区域内で流体を検出するために前記入口に近接したセンサと、
前記検出区域内の粒子の凝集を制御するための粒子凝集リミッタとを含み、
前記粒子凝集リミッタが、前記検出区域内に捕らえられた粒子を押しのけるための慣性ポンプを含む、マイクロ流体チップ。 - 前記慣性ポンプは、前記入口のマイクロ流体通路側の口と前記マイクロ流体通路との間に、又は前記入口のチャンバ側の口と前記ノズルとの間に、又は前記検出区域内に位置する、請求項13に記載のマイクロ流体チップ。
- 前記粒子凝集リミッタが、粒子フィルタリング特徴要素を含み、前記粒子フィルタリング特徴要素は、前記検出区域と前記マイクロ流体通路との間に、又は前記検出区域と前記ノズルとの間に、又は前記検出区域の両側に設けられる、請求項13又は14に記載のマイクロ流体チップ。
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| PCT/US2016/014629 WO2017127120A1 (en) | 2016-01-22 | 2016-01-22 | Fluid sensing with control of particle aggregation in sensing zone |
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| US12539514B2 (en) | 2020-06-17 | 2026-02-03 | Hewlett-Packard Development Company, L.P. | Detecting passage of a particle into a target location |
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| CN103611584B (zh) | 2013-10-29 | 2015-05-13 | 武汉斯坦姆赛尔生物技术有限公司 | 一种微流控芯片及基于微流控芯片的细胞计数方法 |
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| KR101872380B1 (ko) * | 2014-01-30 | 2018-06-28 | 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. | 미세유체 감지 장치 |
| US10960396B2 (en) | 2014-05-16 | 2021-03-30 | Cytonome/St, Llc | Thermal activated microfluidic switching |
| US20160018360A1 (en) | 2014-07-15 | 2016-01-21 | Jun Yang | Microfluidic device for detecting nucleic acids and associated methods |
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2016
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- 2016-01-22 EP EP16886755.4A patent/EP3338062B1/en active Active
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| JP2019500577A (ja) | 2019-01-10 |
| EP3338062B1 (en) | 2019-11-20 |
| US20190039063A1 (en) | 2019-02-07 |
| CN108139241B (zh) | 2020-02-14 |
| TW201732236A (zh) | 2017-09-16 |
| US10913065B2 (en) | 2021-02-09 |
| WO2017127120A1 (en) | 2017-07-27 |
| EP3338062A4 (en) | 2019-04-03 |
| TWI618919B (zh) | 2018-03-21 |
| EP3338062A1 (en) | 2018-06-27 |
| CN108139241A (zh) | 2018-06-08 |
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