JP2022547907A - スケールダウンしたタンジェンシャルフロー深層濾過システム、および、それを使用する濾過の方法 - Google Patents
スケールダウンしたタンジェンシャルフロー深層濾過システム、および、それを使用する濾過の方法 Download PDFInfo
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Abstract
Description
本願は、「スケールダウンしたタンジェンシャルフロー深層濾過システム、および、それを使用する濾過の方法」と題する2019年9月6日に出願された米国仮特許出願第62/896,869号、および、「スケールダウンしたタンジェンシャルフロー深層濾過システム、および、それを使用する濾過の方法」と題する2020年6月9日に出願された米国仮特許出願第63/036,686号の非仮特許出願であり、それらに対する優先権の利益を主張し、それらの出願の全体は参照によって本明細書に明示的に組み込まれる。
本開示の実施形態は概して、TFDFに関し、いくつかの場合においては、バイオプロセシング、特に灌流培養および収集における使用のためのTFDFシステムおよび方法に関する。本開示の実施形態に適合する1つの例示的なバイオプロセシング構成は、所望の生物学的生成物を生成する細胞を培養するための容器(例えばバイオリアクタ)などのプロセス容器を含む。このプロセス容器は、その中にTFDFフィルタ要素が位置するTFDFフィルタハウジングに流体連結され、ハウジングを少なくとも第1の供給液/保持液流路と第2の透過液または濾液流路とに分割する。プロセス容器からTFDFフィルタハウジングへの流体フローは典型的には、流体を単一方向に推進し得る、または、フローの方向を循環的に変更し得るポンプ、例えば、磁気浮揚、ペリスタルティック、またはダイヤフラム/ピストンポンプによって駆動される。
[例示的な実施形態]
例
表1:約4μmの孔サイズを有するフィルタのパラメータ
表2:第2フィルタP3のVVD範囲およびピークVCD
表3:第2フィルタP3の平均ふるい分けパーセント
表4:第2フィルタP3の細胞の通過
表5:第2フィルタP3のフラックス
表7:1.5および2mmのTFDFシステムについてのフィルタパラメータおよび動作変数
Claims (12)
- 厚壁中空ファイバフィルタ要素であって、
第1端および第2端、前記第1端と前記第2端との間に延びる多孔壁、および、その中を通る管腔であって、前記第1端および前記第2端に開いている管腔と、
前記厚壁中空ファイバフィルタ要素の外部表面の一部の周りに配置された非透過性カバーであって、前記第1端に近接する領域から前記第2端に向かって延びる非透過性カバーと
を備え、前記非透過性カバーは、前記厚壁中空ファイバフィルタ要素の周りに周方向に延び、
厚壁中空ファイバの前記外部表面の一部は前記非透過性カバーによって覆われない、
厚壁中空ファイバフィルタ要素。 - 前記外部表面と、前記厚壁中空ファイバフィルタ要素を包囲するハウジングとの間において、前記第1端と前記第2端の各々の前記外部表面の周りに配置された水密シールを更に備え、前記非透過性カバーは、前記第1端において前記水密シールに近接する、請求項1に記載の厚壁中空ファイバフィルタ要素。
- 前記非透過性カバーはまた、前記第2端に近接する厚壁中空ファイバフィルタの外部の周りに配置される、請求項1または2に記載の厚壁中空ファイバフィルタ要素。
- 前記非透過性カバーはポリウレタンを含む、請求項3に記載の厚壁中空ファイバフィルタ要素。
- 前記水密シールはポリウレタンを含む、請求項2に記載の厚壁中空ファイバフィルタ要素。
- 請求項1から5のいずれか一項に記載の厚壁中空ファイバフィルタ要素を利用して濾過プロセスをスケーリングする方法であって、
前記非透過性カバーによって覆われない第1外部表面積、および、第1スループット体積を特徴とする第1厚壁中空ファイバフィルタ要素を選択する段階と、
第2スループット体積を選択し、前記第1スループット体積と前記第2スループット体積との間の比率を判定する段階と、
前記第1外部表面積を前記比率で除算した値に等しい第2外部表面積を特徴とする第2厚壁中空ファイバ要素を選択する段階と
を備える方法。 - 前記第1スループット体積は前記第2スループット体積より大きい、請求項6に記載の濾過プロセスをスケーリングする方法。
- 前記第1スループット体積は前記第2スループット体積未満である、請求項6に記載の濾過プロセスをスケーリングする方法。
- 前記非透過性カバーは、ディップコート、スプレーコート、およびシュリンクラップの1または複数である、請求項6から8のいずれか一項に記載の濾過プロセスをスケーリングする方法。
- 前記厚壁中空ファイバ要素は、前記外部表面と、前記厚壁中空ファイバフィルタ要素を包囲するハウジングとの間において、前記第1端および前記第2端の各々の前記外部表面の周りに配置された水密シールを更に備え、前記非透過性カバーは、前記第1端において前記水密シールに近接する、請求項6から9のいずれか一項に記載の濾過プロセスをスケーリングする方法。
- 前記非透過性カバーはまた、前記第2端に近接する厚壁中空ファイバフィルタの外部の周りに配置される、請求項6から10のいずれか一項に記載の濾過プロセスをスケーリングする方法。
- 請求項1から5のいずれか一項に記載の厚壁中空ファイバフィルタ要素を利用するスケーラブルな濾過システムであって、
組成、内径、および壁の厚みが同一であるが、前記非透過性カバーによって覆われない外部表面積が異なる複数の厚壁中空ファイバフィルタ要素を備え、
前記複数の厚壁中空ファイバフィルタ要素のうちいずれか2つについて、前記厚壁中空ファイバフィルタ要素の処理体積容量の比率は、前記非透過性カバーによって覆われない前記外部表面積の比率に等しい、
システム。
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US63/036,686 | 2020-06-09 | ||
PCT/US2020/049146 WO2021046182A1 (en) | 2019-09-06 | 2020-09-03 | Scale-down tangential flow depth filtration systems and methods of filtration using same |
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