JP4984849B2 - 成分分離デバイスと、この成分分離デバイスを用いた化学分析デバイス - Google Patents
成分分離デバイスと、この成分分離デバイスを用いた化学分析デバイス Download PDFInfo
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Description
Carl Siversson、Micro Total Analysis Systems 2004、pp330−332、vol2 Holden Li、Micro Total Analysis Systems 2004、pp12−14、vol1
以下、本発明の実施の形態1における成分分離デバイス6について説明する。
f=(n/2)×v/W (nは自然数)
を満たす周波数fの音響波が流路溝7に照射されると、流路溝7内に定在波17が発生するのである。
本実施の形態2と実施の形態1との違いは、図7に示すように、突起部10の上面に同一形状の2つの振動装置11a、11bが形成されており、また図8に示すように、突起部10の形状が周波数fで2次の共振周波数となるように設計されている点である。
本実施の形態3と実施の形態1との違いは、図9に示すように、流路溝7の片側の外側壁7aに同一形状の複数個の突起部10a〜10cを形成し、それぞれの上面に振動装置11a〜11cを配置した点である。
本実施の形態4と実施の形態1との違いは、図11に示すように、流路溝7の外側壁7aに、形状の異なる二つの突起部10d、10eを設けた点である。
f1=n×v/W (nは自然数)
を満たす周波数f1が、たわみ振動の共振周波数となるように設定されている。
f2=(1/2)×v/W もしくは
f2=(1/2+n)×v/W (nは自然数)
を満たす周波数f2が、たわみ振動の共振周波数となるように設定されている。そしてこのような突起部10d、10eの上面に振動装置11d、11eが形成されている。
f3=v/W
を満たす周波数f3の駆動電圧を印加すると、振動装置11dに対向する流路溝7の領域には、2つの定在波17の節18が発生する。この場合、駆動電圧を上げることによって、小さい固形成分16aおよび大きい固形成分16bのいずれも十分に凝集することができる。
f4=(1/2)×v/W
を満たす周波数f4の駆動電圧を印加すると、振動装置11eに対向する流路溝7の領域に1つの定在波17の節18が発生する。このとき、駆動電圧を下げていくと、大きい固形成分16bを優先して凝集させることができる。
図15に示すように、本実施形態と実施の形態2との違いは、流路溝7が複数形成されており、対面する流路溝7の外側壁7aに形成されたそれぞれの突起部10は、互いに隣接するように形成されている点である。
図16に示すように、本実施形態と実施の形態1との違いは、突起部10の厚みを基板8よりも小さくなるように形成したものであり、流路溝7の深さとほぼ同一になるように形成した点である。
図17は本実施形態の血液検査用の化学分析デバイス21であり、前述の実施の形態1で示した成分分離デバイス6を搭載している。
7 流路溝
7a、7b 外側壁
8 基板
9 封止部
10 突起部
10a〜10e 突起部
11 振動装置
11a〜11e 振動装置
12 第一電極
13 圧電体
14 第二電極
15 液体成分
16 固形成分
16a、16b 固形成分
17 定在波
18 節
19a たわみ振動を示す矢印
19b 音響波振動を示す矢印
20a、20b 流れ
21 化学分析デバイス
22 検体導入口
23 輸送部
24 反応部
25 分析部
26 シリコン基板
27 空孔
Claims (9)
- 上面に流路溝が形成された基板と、
前記流路溝の上面開口部を覆うように前記基板の上方に設けられた封止部と、
前記流路溝の外側壁に形成された突起部とを備え、
この突起部は、前記流路溝の深さ方向のたわみ振動を与える振動装置を有し、
この突起部は複数個形成されており、
これらの突起部は、
前記流路溝において節の数が異なる定在波が発生するように、
少なくとも第1の共振周波数を持つ形状をした第1の突起部と、
前記第1の共振周波数とは異なる周波数の第2の共振周波数を持つ形状をした第2の突起部からなり、
これらの突起部は、
少なくとも前記流路溝の一方の外側壁に形成されている
成分分離デバイス。 - 前記突起部は、前記基板と同一基板で形成されている請求項1に記載の成分分離デバイス。
- 前記振動装置は、
第1の電極と、
この第1の電極上に設けられた圧電体と、
この圧電体上に設けられた第2の電極とからなる請求項1または2に記載の成分分離デバイス。 - 前記振動装置は、前記突起部上に複数個形成されている請求項1から3のいずれか一つに記載の成分分離デバイス。
- 前記複数個形成された突起部は、
前記流路溝の両側の外側壁に形成されている請求項1から4のいずれか一つに記載の成分分離デバイス。 - 前記流路溝の幅をWとし、
前記流路溝に導入する液体成分および固形成分の混合物のうち、前記液体成分における音速をvとすると、
f1=n×v/W (nは自然数)
を満たす周波数f1が共振周波数である第1の突起部と、
f2=(1/2)×v/W もしくは (1/2+n)×v/W (nは自然数)を満たす周波数f 2 が共振周波数である第2の突起部とを有する請求項1から5のいずれか一つに記載の成分分離デバイス。 - 前記流路溝が複数形成されている場合、またはこの流路溝が枝分かれしている場合、
対面する流路溝の側壁に形成されたそれぞれの突起部は、
隣接するように形成された請求項1から6のいずれか一つに記載の成分分離デバイス。 - 前記突起部の厚みは、
音響波伝搬板よりも薄いものとした請求項1から7のいずれか一つに記載の成分分離デバイス。 - 検体導入口と、
この検体導入口に接続された輸送部と、
この輸送部と接続された請求項1から8に記載の成分分離デバイスのいずれか一つと、この成分分離デバイスに接続された反応部と、
この反応部に接続された分析部とを備え、
前記突起部の周辺には空孔を有する化学分析デバイス。
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JP2006318239A JP4984849B2 (ja) | 2006-11-27 | 2006-11-27 | 成分分離デバイスと、この成分分離デバイスを用いた化学分析デバイス |
EP07831903.5A EP2053411B1 (en) | 2006-11-27 | 2007-11-15 | Component separating device and chemical analysis device using the same |
PCT/JP2007/072173 WO2008065897A1 (fr) | 2006-11-27 | 2007-11-15 | Dispositif de séparation de composants et dispositif d'analyse chimique utilisant celui-ci |
US12/444,485 US8080202B2 (en) | 2006-11-27 | 2007-11-15 | Component separating device and chemical analysis device using the same |
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EP2053411B1 (en) | 2015-07-15 |
US20100078323A1 (en) | 2010-04-01 |
EP2053411A4 (en) | 2013-06-05 |
WO2008065897A1 (fr) | 2008-06-05 |
US8080202B2 (en) | 2011-12-20 |
JP2008134063A (ja) | 2008-06-12 |
EP2053411A1 (en) | 2009-04-29 |
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