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US 4,784,768 AGranted
Capillary filter arrangement for sterilization of liquid media
AssigneeFresenius AG
InventorBernd Mathieu
Life of this patent
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AssigneeFresenius AG
InventorBernd Mathieu
Estimating the term…
Capillary filter arrangement for the sterilization of liquid media comprising two semipermeable capillary fibre bundles (4, 5) which are in flow connection and which are arranged adjacent each other in a single housing (1). The opposite openings of the housing (1) are each sealed by an end cap (2; 2a) which comprises at least one connecting opening (3; 3a) for introduction or removal of the medium respectively. The housing (1) comprises at its ends a cast layer (6; 7) in which the ends of the capillary fibre bundles (4; 5) are received, a distributing space (8; 9) being formed between the end cap (2; 2a) and cast layer (6; 7) and a primary filtrate chamber (10) being formed between the cast layer (6; 7). The ends of the first capillary fibre bundle (4) are sealed with respect to the first distributing chamber (8) and the ends of the second capillary fibre bundle (5) are sealed with respect to the second distributing chamber (9 ) so that the entire internal lumen of the first and second capillary fibre bundle (4; 5) respectively is in flow connection only with the second and first distributing chamber (9; 8) respectively.
Capillary filter arrangement for sterilizing liquid media comprising at least two semipermeable capillary fibre bundles which are in flow connection with each other and are arranged in a tubular housing, the ends of the housing each having a cast layer in which the capillary fibre bundles are received, the ends of the housing each being sealed with an end cap having at least one connection opening, a distributing chamber being formed between the end cap and cast layer in each case and a primary filtrate chamber being formed in the tubular housing between the cast layers, and the ends of the first capillary fibre bundle are sealed with respect to the first distributing chamber and the ends of the second fibre bundle are sealed with respect to the second distributing chamber so that the total internal lumen of the first capillary fibre bundle is in flow connection only with the second distributing chamber and that of the second capillary fibre bundle is in flow connection only with the first distributing chamber.
Dependencies are inferred from the claim text.