JP2019141591A - 血液から病原性毒素を除去するための装置、該装置を備える体外潅流システム、および該装置を製造する方法 - Google Patents
血液から病原性毒素を除去するための装置、該装置を備える体外潅流システム、および該装置を製造する方法 Download PDFInfo
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Abstract
Description
4 装置
6 ヒト
8 第1ライン
10 第1ポンプ
12 ハウジング
14 中空ファイバ
16 第2ポンプ
18 第2ライン
20 第3ライン
22 第4ライン
24 遮断バルブ
26 第1ポート
28 第2ポート
30 第1カバーキャップ
32 第2カバーキャップ
34 細孔
36 機能化表面
38 病原性毒素
40 内表面
42 外表面
44 血液
46 血漿
48 血液細胞
50 (血液適合性で抗凝固性の)コーティング
Claims (11)
- 体外潅流システム(2)において血漿(46)と細胞成分(48)とを含む血液(44)から病原性毒素(38)を除去する装置(4)であって、
ハウジング(12)と、
前記ハウジング(12)内に設けられるとともに、前記血液(44)によって潅流されるように構成された複数の中空ファイバ(14)とを有し、
前記中空ファイバ(14)は、複数の細孔(34)を有し、前記細孔(34)は、前記血液(44)の前記血漿(46)が、前記中空ファイバ(14)の内側から当該中空ファイバ(14)の外側へと当該細孔(34)を通って流れることができるように構成され、
前記中空ファイバ(14)は、前記病原性毒素をそれ自体に結合して前記血液から除去する機能化表面(36)を備えるように、改変/前処理されている装置において、
前記中空ファイバの内表面(40)は、前記血液(44)が前記中空ファイバ(14)を通って流れる時に、当該血液(44)の前記細胞成分(48)のダメージを防止するように構成されたコーティング(50)を更に備えている、装置(4)。 - 前記コーティング(50)は、前記細孔(34)の内周側が前記コーティング(50)によってカバーされない、若しくは、不完全にしかカバーされないように、前記中空ファイバ(14)の前記内表面(40)上に配置又は形成されている、請求項1に記載の装置(4)。
- 前記中空ファイバ(14)の前記内表面(40)上の前記コーティング(50)は、血液適合性かつ抗凝固性であり、更に、それ自体に前記病原性毒素(38)を結合して前記血液から除去する前記中空ファイバ(14)の前記機能化表面(36)に対して適合性であり、前記機能化表面(36)に対して前記コーティング(50)が前記中空ファイバ(14)の内側において施されている、請求項1又は2に記載の装置(4)。
- 前記コーティング(50)は、溶液を前記中空ファイバ(14)を通って流すことによって、前記中空ファイバ(14)の前記内表面(40)に施されている、請求項1から3のいずれか一項に記載の装置(4)。
- 前記溶液は、負荷電陰イオン溶液である、請求項4に記載の装置(4)。
- 前記溶液の量、流速及び陰イオン濃度を調節することによって、前記中空ファイバ(14)の前記内表面(40)のみのコーティング及び前記溶液による前記中空ファイバ(14)の前記内表面(40)の飽和を達成可能であり、且つ前記コーティング(50)の厚みを変更可能である、請求項4又は5に記載の装置(4)。
- 前記ハウジング(12)は、前記溶液が前記中空ファイバ(14)に導入される時に、出口側において閉じられる、請求項4から6のいずれか一項に記載の装置(4)。
- 請求項1から7のいずれか一項に記載の、血液(44)から病原性病毒(38)を除去するための装置(4)と、
前記血液(44)の前記血漿(46)を、前記中空ファイバ(14)から前記細孔(34)を介して搬出すると共に、前記装置(4)の下流側において、前記装置(4)を通って流れた前記血液(44)に戻し供給するポンプ(16)とを有する、体外潅流システム(2)。 - 血液(44)から病原性毒素(38)を除去するための装置(4)を製造する方法であって、
複数の多孔性中空ファイバ(14)を作る工程(a)と、
前記病原性毒素(38)をそれ自体に結合して前記血液(44)から除去する機能化表面(36)を備えるように、前記中空ファイバ(14)を改変又は前処理する工程(b)と、
前記複数の多孔性中空ファイバ(14)をハウジング(12)に挿入する工程(c)と、
溶液を、前記ハウジング(12)内に配置された前記複数の多孔性中空ファイバ(14)に通して流す工程(d)とを含み、
前記工程(a)から(d)は時系列的に行われる、方法。 - 前記溶液の量と流速とを調節する工程(e)を更に含み、前記工程(e)は前記工程(d)の前に行われる、請求項9に記載の方法。
- 前記溶液が前記中空ファイバ(14)に導入される前に、前記ハウジング(12)を出口側で閉じる工程(f)を更に含む、請求項9又は10に記載の方法。
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