JP6871116B2 - セルソータ - Google Patents
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- JP6871116B2 JP6871116B2 JP2017178140A JP2017178140A JP6871116B2 JP 6871116 B2 JP6871116 B2 JP 6871116B2 JP 2017178140 A JP2017178140 A JP 2017178140A JP 2017178140 A JP2017178140 A JP 2017178140A JP 6871116 B2 JP6871116 B2 JP 6871116B2
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Description
図1及び図2は、第1の実施形態に係わるセルソータの概略構成を説明するためのもので、図1は平面図、図2は図1のI−I’断面図である。
このように本実施形態では、イメージセンサ40の流路20の部分の計測信号に基づいて、流路20内を通過する検体液中の微粒子の特徴を、判定部50で判定することができる。さらに、判定部50の判定結果に基づいて分取部60で、誘電泳動により微粒子を分岐流路21,22の何れかに導くことにより、必要な微粒子のみを分取することができる。その際、判定部の結果に応じた電界が微粒子に対して印加され、微粒子は所定の分岐流路に導かれる。分取の過程で液滴の射出を伴わないため、微粒子に与えるダメージを少なくすることができる。
図6は、第2の実施形態に係わるセルソータの概略構成を示す平面図である。なお、図1と同一部分には同一符号を付して、その詳しい説明は省略する。
図7は、第3の実施形態に係わるセルソータの概略構成を示す平面図である。なお、図1と同一部分には同一符号を付して、その詳しい説明は省略する。
図8は、第4の実施形態に係わるセルソータの概略構成を示す平面図である。なお、図1と同一部分には同一符号を付して、その詳しい説明は省略する。
図9は、第5の実施形態に係わるセルソータの概略構成を示す平面図である。なお、図1と同一部分には同一符号を付して、その詳しい説明は省略する。
なお、本発明は上述した各実施形態に限定されるものではない。
20…流路(第1の流路)
21,22…分岐流路(第2の流路)
21a,21b,22a,22b…再分岐流路(第3の流路)
25…帰還流路
30…入力部
31,32…出力部
40…イメージセンサ
41…観察回路(観察部)
50…判定部
51…光源
52…光学フィルタ
53…判定回路
60…分取部
61,62…電極
63…駆動回路
Claims (12)
- 基板の表面部に設けられ、一端側から粒子を含む検体液が供給される流路と、
前記基板の表面部に設けられ、前記流路の他端側に接続された複数の分岐流路と、
前記基板に設けられ且つ前記流路及び前記分岐流路の下に位置し、前記流路から前記分岐流路までをカバーする画素領域を有するイメージセンサと、
前記イメージセンサの前記流路の部分の画素領域の計測信号から、前記検体液中の粒子の特徴を判定する判定部と、
前記流路と前記分岐流路との接続部に隣接して設けられ、前記判定部の判定結果に基づいて、前記検体液中の粒子を前記分岐流路の何れかに導く分取部と、
前記イメージセンサの計測信号から、前記粒子の前記流路から前記分岐流路への移動を観察する観察部と、
を具備したことを特徴とするセルソータ。 - 前記判定部は、特定の波長を遮断する光学フィルタを有することを特徴とする、請求項1に記載のセルソータ。
- 前記分取部は、前記流路の下流側に設けられた電極を有することを特徴とする、請求項2に記載のセルソータ。
- 前記流路、前記分岐流路、前記イメージセンサ、前記判定部、前記分取部、及び前記観察部からなるセルソータ要素が複数個並列に配置され、
前記イメージセンサは、異なるセルソータ要素で共通であることを特徴とする、請求項1に記載のセルソータ。 - 前記基板の表面部に、前記流路の一端側と他端側を接続するように設けられた帰還流路を更に有し、前記分取部は、前記判定部の判定結果に基づいて、前記検体液中の粒子を前記分岐流路の何れか又は前記帰還流路に導くことを特徴とする、請求項1に記載のセルソータ。
- 基板の表面部に設けられ、一端側から粒子を含む検体液が供給される第1の流路と、
前記基板の表面部に設けられ、前記第1の流路の他端側に一端が接続された複数の第2の流路と、
前記基板の表面部に設けられ、前記第2の流路の各々の他端側にそれぞれ複数個が接続された第3の流路と、
前記基板に設けられ且つ前記第1、第2及び第3の流路の下に位置し、前記第1の流路から前記第3の流路までをカバーする画素領域を有するイメージセンサと、
前記イメージセンサの前記第1の流路の部分の画素領域の計測信号から、前記検体液中の粒子の特徴を判定する第1の判定部と、
前記第1の流路と前記第2の流路との接続部に隣接して設けられ、前記第1の判定部の判定結果に基づいて、前記第1の流路内の前記検体液中の粒子を前記第2の流路の何れかに導く第1の分取部と、
前記イメージセンサの前記第2の流路の部分の画素領域の計測信号から、前記検体液中の粒子の特徴を判定する第2の判定部と、
前記第2の流路と前記第3の流路との接続部に隣接して設けられ、前記第2の判定部の判定結果に基づいて、前記第2の流路内の前記検体液中の粒子を前記第3の流路の何れかに導く第2の分取部と、
前記イメージセンサの計測信号から、前記粒子の前記第1の流路から前記第3の流路への移動を観察する観察部と、
を具備したことを特徴とするセルソータ。 - 基板上に複数のセルソータ要素を直列に配置してなるセルソータであって、
前記セルソータ要素の各々は、前記基板の表面部に設けられ、一端側から粒子を含む検体液が供給される流路及び該流路の他端側に一端が接続された複数の分岐流路と、前記基板に設けられ且つ前記流路及び前記分岐流路の下に位置し、前記流路から前記分岐流路までをカバーする画素領域を有するイメージセンサと、前記イメージセンサの前記流路の部分の画素領域の計測信号から、前記検体液中の粒子の特徴を判定する判定部と、前記流路と前記分岐流路との接続部に隣接して設けられ、前記判定部の判定結果に基づいて、前記流路内の前記検体液中の粒子を前記分岐流路の何れかに導く分取部と、前記イメージセンサの計測信号から、前記粒子の前記流路から前記分岐流路への移動を観察する観察部とを具備し、
上流側のセルソータ要素の前記分岐流路の一方の他端に下流側のセルソータ要素の前記流路の一端が接続され、
前記各セルソータ要素の前記判定部は、粒子の異なる特徴を判定するものであることを特徴とするセルソータ。 - 前記判定部は、前記計測信号に基づいて前記粒子の蛍光的特徴量を判定するものであり、
前記分取部は、前記蛍光的特徴量が閾値以上でない場合に前記粒子を前記分岐流路の一方に導き、前記蛍光的特徴量が閾値以上の場合に前記粒子を前記分岐流路の他方に導くことを特徴とする、請求項7に記載のセルソータ。 - 基板の表面部に設けられ、一端側から粒子を含む検体液が供給される第1の流路及び前記第1の流路の他端側に一端が接続された複数の分岐流路を有するセルソータ要素を多段に配置した流路部と、
前記基板に設けられ且つ前記第1の流路及び前記分岐流路の下に位置し、前記セルソータ要素毎に前記第1の流路及び前記分岐流路をカバーする画素領域を有する、又は前記基板に設けられ且つ前記流路部の下に位置し、前記流路部をカバーする画素領域を有するイメージセンサと、
前記セルソータ要素毎に、前記イメージセンサの前記第1の流路の部分の画素領域の計測信号から、前記検体液中の粒子の特徴を判定する判定部と、
前記セルソータ要素毎に、前記第1の流路と前記分岐流路との接続部に隣接して設けられ、前記判定部の判定結果に基づいて、前記第1の流路内の前記検体液中の粒子を前記分岐流路の何れかに導く分取部と、
前記イメージセンサの計測信号から、前記粒子の前記流路部内の移動を観察する観察部とを具備したセルソータ。 - 前記多段に配置した前記セルソータ要素は、各段の何れかにおいて、並列にも設けられていることを特徴とする請求項9に記載のセルソータ。
- 前記セルソータ要素を多段に配置した流路部は、上流側のセルソータ要素の前記分岐流路の一方の他端に下流側のセルソータ要素の前記第1の流路の一端が接続されることによって多段に配置しており、
前記各セルソータ要素の前記判定部は、粒子の異なる特徴を判定することができるものであることを特徴とする請求項9に記載のセルソータ。 - 前記判定部は、前記計測信号に基づいて前記粒子の蛍光的特徴量を判定するものであり、
前記セルソータ要素を多段に配置した流路部は、上流側の1つ以上のセルソータ要素からなる上流側セルソータ要素群と前記上流側セルソータ要素群よりも下流側の1つ以上のセルソータ要素からなる下流側セルソータ要素群とを有し、
前記上流側セルソータ要素群においては前記判定部による第1の蛍光的特徴量が閾値以下である場合に前記粒子を前記分岐流路の一方に導き、前記下流側セルソータ要素群においては前記判定部による第2の蛍光的特徴量が閾値以上である場合に前記粒子を前記分岐流路の一方に導くことを特徴とする、請求項11に記載のセルソータ。
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