JP7248324B2 - コンパクトな逆流遠心分離システムおよびそれに用いる分離チャンバ - Google Patents
コンパクトな逆流遠心分離システムおよびそれに用いる分離チャンバ Download PDFInfo
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- JP7248324B2 JP7248324B2 JP2020513380A JP2020513380A JP7248324B2 JP 7248324 B2 JP7248324 B2 JP 7248324B2 JP 2020513380 A JP2020513380 A JP 2020513380A JP 2020513380 A JP2020513380 A JP 2020513380A JP 7248324 B2 JP7248324 B2 JP 7248324B2
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Description
再利用可能なサブシステムと、
一回使用の交換可能なサブシステムと
を有し、
当該再利用可能なサブシステムは、
回転モータヘッドと
蠕動ポンプと、
バルブアセンブリと、
プラグラムされた処理プロトコルに従い、回転モータヘッド、蠕動ポンプおよびバルブアセンブリの動作を制御するように構成されたシステムコントローラと、
回転モータヘッド、蠕動ポンプ、およびバルブ動作アセンブリを収容するケースと
を含み、
当該一回使用の交換可能なサブシステムは、
小さい流体体積および小さい回転半径用に構成された分離チャンバであって、ネック部分に接続された実質的に円錐の流体エンクロージャ部を有し、円錐流体エンクロージャの先端部に流体経路を与えるべく、ネックを通じて円錐先端から円錐流体エンクロージャを通じて中心方向に伸長する浸漬管を有し、ネック部分はさらに溶出流体経路を有する、分離チャンバと、
流体分配マニホールドであって、分離チャンバと流体連通するように構成された第1流体ポートおよび第2流体ポートと、第1流体ポートおよび第2流体ポートへまたはそれから流体を分配するために外部流体供給コンポーネントへ接続するように構成された複数の流体経路であって、複数の流体経路の少なくともひとつは、バルブアセンブリと係合するように構成されており、それにより、流体経路はバルブアセンブリの動作によって選択的に開放または閉止可能であるところの複数の流体経路と、蠕動ポンプの動作によってマニホールド内に流体フローを生じさせるべく蠕動ポンプと流体経路との間の動作可能な係合を可能にするように構成されたポンプ係合部と、
含む流体分配マニホールドと、
流体分配マニホールドへ分離チャンバを接続し、浸漬管と第1流体ポートとの間の第1流体連通経路および溶出流体経路と第2流体ポートとの間の第2流体連通経路を与える回転カップリングであって、当該回転カップリングは、流体分配マニホールドがケースによって固定位置に保持されたままで、流体分配マニホールドに関して回転軸線の周りに分離チャンバの回転を可能にするように構成されているところの回転カップリングと、
を含み、
ネック部分は、回転軸線の周りに分離チャンバの回転を生じさせるべく、回転モータヘッドと係合するようにさらに構成されており、
一回使用の交換可能なサブシステムは、逆流遠心分離処理を実行するためのクローズ環境を与える。
実質的に円錐の流体エンクロージャ部分と、
実質的に円錐の流体エンクロージャ部分に結合されたネック部分と、
円錐流体エンクロージャの先端へ流体経路を与えるべく、ネック部分を介して、円錐先端から円錐流体エンクロージャを通じて中央に伸長した浸漬管と、
ネック部分を通じた溶出経路と、
ネック部分に結合された回転カップリングであって、流体分配マニホールドへ結合するための第1流体ポートによって流体連通するために浸漬管へ第1流体連通経路を与え、かつ、流体分配マニホールドへ結合するための第2流体ポートによって流体連通するために溶出流体経路へ第2流体連通経路を与える回転カップリングと
を有し、
回転カップリングは、回転軸線の周りに分離チャンバの回転が可能であるように構成されており、
ネック部分は、回転軸線の周りに分離チャンバの回転を生じさせるべく、回転モータヘッドと係合するようにさらに構成されている。
式(2)において、コリオリ力の成分は、(-2mΩ×vR)によって特徴づけられ、遠心力成分は(-mΩ×(Ω×R))によって特徴づけられ、それはまた、mw2R(t)(ここでR(t)は粒子の瞬間的な位置ベクトルである)によっても特徴づけられ、および、回転の速度変化によるオイラー力の成分は(-mdΩ/dt×R)によって特徴づけられる。定常回転速度での動作を考えると、オイラー力の成分は無視してよい。
・円錐の高圧力領域への外部流体結合が存在しないことは、外部配管構成に関連した製造およびハンドリングリスクを除去する。
・流体チャンバに流入する細胞サスペンションの流体フローパターンが、円錐チャンバジオメトリとアライメントするべく、それ自身に回帰することが要求される外部配管のジオメトリによって影響されない。
・外部流体ラインおよび関連するUベンドが、分離チャンバの外側に最大遠心分離領域を生じさせる。重い粒子および細胞凝集体は、この最大遠心分離領域内に蓄積する。周知の商業的システムにおいて、この最大遠心分離領域は、分離チャンバの外側で発生し、例えば、分離チャンバの先端部の流体インプット付近の外部配管内のベンドで発生する。本願発明の実施形態において、このクリティカルな最大遠心分離領域は、円錐先端の内部である。円錐が透明の場合、この最大遠心分離領域は管理された介入により明確に観測可能である。
・円錐中央の浸漬管は、皮下チューブから作成されてよく、それは、技術的に精巧であり、医療プロダクトのコンタクト用に承認され、かつ、低コストで十分な体積で製造される。皮下チューブはまた、使用後にこれらのプロダクト用の危険ゴミストリームの周知のコンポーネントである。これは、分離チャンバコンポーネント用の初期製造コストおよびゴミ廃棄コストの両方に対して利点を有する。
・浸漬管へ接続する流体チャネルが、希釈細胞サスペンションが細胞床の蓄積中にチャンバへ移送されるところにある。
・このチャネルはまた、濃縮されたサスペンションがチャンバから目標ベッセルへ引かれるところにある。
・回転カップリングは、細胞サスペンションを移送するべく、回転アセンブリの中心と直接アライメントされた中心ポートを有する。
・細胞は、回転構造から回転カップリングボディ内で生じる際にのみ、デローテーションからのせん断にさらされる。
・収集可能な希釈細胞サスペンションの最大体積
・細胞を捕捉しながら希釈細胞サスペンションが処理可能な速度
・収集された細胞が分配可能な体積がどのくらい小さいか
・細胞の回復:供給細胞に対する分配細胞の割合(%)
・供給チューブへの方向軸インターフェースを有する回転カップリング
・ポンプを通じて目標ベッセルへの、チャンバからの流路距離を最小化する小さいフットプリント
・選択的な捕捉およびシャットオフ用の出力ライン内に光学密度センサを埋め込む機会
1)細胞濃縮
2)細胞精製
3)より大きく高密度の細胞の濃縮と、より小さく、軽い細胞およびデブリの水簸の組みあわせによる細胞分離
4)周囲の細胞ポピュレーションより、軽いかまたは重いビーズに付着した細胞を分離することによる細胞選択
5)液体の制御された体積(例えば、抗凍結剤)を濃縮細胞の既知のアウトプット体積に追加することによる製剤
Claims (21)
- コンパクトな逆流遠心分離システムであって、
再利用可能なサブシステムと、
一回使用の交換可能なサブシステムと
を備え、
前記再利用可能なサブシステムは、
回転モータヘッドと、
蠕動ポンプと、
バルブアセンブリと、
プログラムされた処理プロトコルに従い、前記回転モータヘッド、前記蠕動ポンプおよび前記バルブアセンブリの動作を制御するように構成されたシステムコントローラと、
前記回転モータヘッド、蠕動ポンプ、およびバルブ動作アセンブリを収容するケースとを有し、
前記一回使用の交換可能なサブシステムは、
小さい流体体積および小さい回転半径用に構成された分離チャンバであって、ネック部分に結合された実質的に円錐の流体エンクロージャ部分を有し、前記円錐流体エンクロージャの円錐先端へ流体経路を与えるべく前記ネック部分から前記円錐流体エンクロージャの前記円錐先端へ前記円錐流体エンクロージャを通じて中央で伸長する浸漬管を有し、前記ネック部分はさらに溶出流体経路を有する、ところの分離チャンバと、
流体分配マニホールドであって、前記分離チャンバと流体連通するように構成された第1流体ポートおよび第2流体ポートと、前記第1流体ポートおよび前記第2流体ポートで出し入れするよう流体を分配するための外部流体供給コンポーネントへ結合するように構成された複数の流体経路であって、少なくともひとつの前記流体経路は前記バルブアセンブリと係合するように構成されており、それにより、流体経路は前記バルブアセンブリの動作によって選択的に開閉可能であるところの複数の流体経路と、前記蠕動ポンプの動作によって前記流体分配マニホールド内に流体フローを生じさせるべく、前記蠕動ポンプと流体経路との間で動作的係合を可能にするように構成されたポンプ係合部分とを含む流体分配マニホールドと、
回転カップリングであって、当該回転カップリングは前記流体分配マニホールドを前記分離チャンバに結合するべく前記回転カップリングの回転軸線を通る前記分離チャンバの前記ネック部分へ結合し、前記浸漬管と前記第1流体ポートとの間に第1流体連通経路および前記溶出流体経路と前記第2流体ポートとの間に第2流体連通経路が、その内部に形成されている回転カップリングであり、前記回転カップリングは、前記流体分配マニホールドが前記ケースによって固定位置で保持されたまま、前記流体分配マニホールドに関して前記ネック部分を通じる前記回転軸線の周りに前記分離チャンバの回転を可能にするように構成されており、前記浸漬管と連通する前記第1流体連通経路は、前記回転軸線とアライメントされている、ところの回転カップリングと、
を有し、
前記分離チャンバの前記ネック部分は、前記回転軸線の周りに前記分離チャンバの回転を生じさせる前記回転モータヘッドと直接的に係合するようにさらに構成されており、
前記一回使用の交換可能なサブシステムは、逆流遠心分離処理を実行するために、閉じた環境を与える、
ことを特徴とするシステム。 - 前記バルブアセンブリは、複数のピンチバルブアクチュエータを含むピンチバルブ作用アセンブリを有し、それぞれのピンチバルブアクチュエータは、マニホールドの流体経路と係合するように構成されており、前記流体分配マニホールドは、前記ピンチバルブアクチュエータのひとつとアライメントした各流体経路内に少なくともひとつのフレキシブルな部分を含み、それにより、前記ピンチバルブアクチュエータの動作が前記流体経路の開閉を生じさせる、ことを特徴とする請求項1に記載のシステム。
- 前記流体分配マニホールドは、適切な流体結合を有するベッセルのアタッチメントおよびバルブの作用によって、系統的な細胞損失のリスクなしで、細胞サスペンション供給ベッセルから前記チャンバ内で流動床を確立するためのリサイクル流体経路の選択的構成を可能にするように構成されている、ことを特徴とする請求項1または2に記載のシステム。
- 前記流体分配マニホールドは、前記マニホールドが前記ケース内に配置されたとき、前記ポンプ係合部分を前記蠕動ポンプにアライメントするように構成されており、前記ケースは前記ケースが閉じられているとき、前記蠕動ポンプへの前記ポンプの係合部分の動作的係合を有効にするように構成されており、任意で、前記ケースは、ケースドアの相対的ジオメトリおよびケースドアヒンジが、前記蠕動ポンプとの動作的係合を有効にするべく、前記ポンプ係合部分のチューブを蠕動ポンプローラと合わせるように構成されている、ことを特徴とする請求項1から3のいずれか一項に記載のシステム。
- 毎分8000回転までの回転速度で動作するように構成されている、請求項1に記載のシステム。
- 前記円錐流体エンクロージャは、5mlから20mlの体積を有する、ことを特徴とする請求項5に記載のシステム。
- 50から70mmの回転半径を有する、請求項6に記載のシステム。
- 1000万から40億個の細胞に対して、1mlから10mlの流体体積回復を可能にするべく、細胞治療するように構成されている、請求項1から7のいずれか一項に記載のシステム。
- 毎分200,000回転までの回転速度で回転するように構成されている、請求項1に記載のシステム。
- 前記円錐流体エンクロージャは、0.lmlから0.5mlの体積を有する、ことを特徴とする請求項9に記載のシステム。
- 10から30mmの先端回転半径を有する、請求項8から10のいずれか一項に記載のシステム。
- コンパクトな逆流遠心分離システム用の分離チャンバであって、前記分離チャンバは、小さい流体体積および小さい回転半径用に構成されており、
実質的に円錐の流体エンクロージャ部分と、
前記実質的に円錐の流体エンクロージャ部分に結合されたネック部分と、
前記円錐流体エンクロージャの円錐先端の内部への流体経路を与えるべく、前記ネック部分から前記円錐流体エンクロージャの前記円錐先端へ、前記円錐流体エンクロージャを通じて中央に伸長する浸漬管と、
前記ネック部分を通じた溶出流体経路と、
回転カップリングであって、前記ネック部分を通じた回転軸線の周りに前記分離チャンバの回転を可能にするように、当該回転カップリングが前記回転カップリングの前記回転軸線を通る前記分離チャンバの前記ネック部分に結合され、前記回転カップリングの内部には、流体分配マニホールドへの結合用の第1流体ポートと流体連通するために前記浸漬管への第1流体連通経路と、流体分配マニホールドへの結合用の第2流体ポートへ流体連通するための前記溶出流体経路への第2流体連通経路とが形成されている、ところの回転カップリングと、
を備え、
前記浸漬管と連通する前記第1流体連通経路は、前記回転軸線とアライメントされており、
前記分離チャンバの前記ネック部分は、前記回転軸線の周りに、前記分離チャンバの回転を生じさせる回転モータヘッドと直接的に係合するようにさらに構成されている、ことを特徴とする分離チャンバ。 - 前記第1流体連通経路は、前記回転カップリングの回転軸線を通じたチューブによって与えられる、ことを特徴とする請求項12に記載の分離チャンバ。
- 前記ネックを通じた溶出流体経路は、前記円錐流体エンクロージャから前記回転カップリングを通じて前記第2流体連通経路と流体結合する前記ネック部分内の前記溶出経路への複数の流体経路を有する、ことを特徴とする請求項12または13に記載の分離チャンバ。
- 前記分離チャンバは、前記円錐流体エンクロージャを前記ネック部分から分離する壁を有し、前記壁は、前記ネック内の前記溶出経路へ複数の流体経路を与えるようそこに形成されたアパーチャを有する、ことを特徴とする請求項14に記載の分離チャンバ。
- 前記円錐流体エンクロージャの前記先端は、前記円錐流体エンクロージャを通じて前記浸漬管を介して導入された流体の分散を生じさせるように構成された流体チャネル構造を有する、ことを特徴とする請求項12から15のいずれか一項に記載の分離チャンバ。
- 前記円錐流体エンクロージャは、5mlから20mlの体積を有する、ことを特徴とする請求項12から16のいずれか一項に記載の分離チャンバ。
- 50から70mmの先端回転半径を有する、請求項17に記載の分離チャンバ。
- 円錐直径が33mmで円錐高さが38mmである、請求項18に記載の分離チャンバ。
- 前記円錐流体エンクロージャは、0.1mlから0.5mlの体積を有する、ことを特徴とする請求項12に記載の分離チャンバ。
- 10から30mmの先端回転半径を有する、請求項20に記載の分離チャンバ。
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