The disclosure relates to devices and methods for extracorporeal conditioning of blood. Extracorporeal blood oxygenators and blood oxygenator components, such as conditioning modules, are described. An extracorporeal blood oxygenator includes a conditioning module having an external frame, an inlet cover, an outlet cover, and an internal chamber. A fiber assembly is disposed within the internal chamber and a potting material on the fiber assembly creates a circumferential seal that defines a passageway through the fiber assembly having a substantially circular cross-sectional shape. A fluid inlet is in fluid communication with the passageway, has a lumen that extends along an axis that is substantially perpendicular to the fiber assembly, and has an internal curvilinear surface adjacent the fiber assembly. A fluid outlet on the opposite side of the fiber assembly also has a lumen that extends along an axis that is substantially perpendicular to the fiber assembly.

A filter device (10) for filtration of fluids, in particular for the dialysis of blood. The filter device (10) comprises a housing (12) having a first end (14) and a second end (16) and defining a fluid chamber (18) extending between the first end (14) and the second end (16). The filter device (10) further comprises a first lid (20) provided at the first end (14) of the housing (12) and comprising a first fluid port (22), a first compartment (24), a second compartment (26) and a first internal separating wall (28) separating the first compartment (24) from the second compartment (26). The filter device (10) further comprises a second lid (30) provided at the second end (16) of the housing (12) and comprising a second fluid port (32), a third fluid port (33), a third compartment (34), a fourth compartment (36) and a second internal separating wall (38) separating the third compartment (34) from the fourth compartment (36). The filter device (10) further comprises a plurality of hollow fibers (40) arranged within the housing (12), wherein each of the plurality of hollow fibers (40) comprises a semi-permeable membrane and defines a fluid channel extending longitudinally through an interior of the respective hollow fiber (40). The filter device (10) further comprises a first sealing means (42) which separates the fluid chamber (18) from the first and the second compartment (24, 26), the first sealing means (42) having a first longitudinal end facing away from the second lid (30). The filter device (10) further comprises a second sealing means (46) which separates the fluid chamber (18) from the third and the fourth compartment (34, 36), the second sealing means (46) having a second longitudinal end facing away from the first lid (20). Still further, the filter device (10) comprises a fourth fluid port (50) and a fifth fluid port (52) both provided at the fluid chamber (18) and located between the first longitudinal end of the first sealing means (42) and the second longitudinal end of the second sealing means (46).

A filter device (10) for filtration of fluids, in particular for the dialysis of blood. The filter device (10) comprises a housing (12) having a first end (14) and a second end (16) and defining a fluid chamber (18) extending between the first end (14) and the second end (16). The filter device (10) further comprises a first lid (20) provided at the first end (14) of the housing (12) and comprising a first fluid port (22), a first compartment (24), a second compartment (26) and a first internal separating wall (28) separating the first compartment (24) from the second compartment (26). The filter device (10) further comprises a second lid (30) provided at the second end (16) of the housing (12) and comprising a second fluid port (32), a third fluid port (33), a third compartment (34), a fourth compartment (36) and a second internal separating wall (38) separating the third compartment (34) from the fourth compartment (36). The filter device (10) further comprises a plurality of hollow fibers (40) arranged within the housing (12), wherein each of the plurality of hollow fibers (40) comprises a semi-permeable membrane and defines a fluid channel extending longitudinally through an interior of the respective hollow fiber (40). The filter device (10) further comprises a first sealing means (42) which separates the fluid chamber (18) from the first and the second compartment (24, 26), the first sealing means (42) having a first longitudinal end facing away from the second lid (30). The filter device (10) further comprises a second sealing means (46) which separates the fluid chamber (18) from the third and the fourth compartment (34, 36), the second sealing means (46) having a second longitudinal end facing away from the first lid (20). Still further, the filter device (10) comprises a fourth fluid port (50) and a fifth fluid port (52) both provided at the fluid chamber (18) and located between the first longitudinal end of the first sealing means (42) and the second longitudinal end of the second sealing means (46).

Methods and systems for processing and conditioning red blood cells are disclosed. The methods and systems may be used to make a readily transfusible red blood cell product with reduced plasma. In general, the plasma content of the supernatant of the red blood cell product is no greater than about 15%. The red blood cell products are prepared using the disclosed methods and systems remain transfusible for up to 42 days.

Methods and systems for processing and conditioning red blood cells are disclosed. The methods and systems may be used to make a readily transfusible red blood cell product with reduced plasma. In general, the plasma content of the supernatant of the red blood cell product is no greater than about 15%. The red blood cell products are prepared using the disclosed methods and systems remain transfusible for up to 42 days.

A method and apparatus are provided for a hemodiafiltration delivery module that is used in conjunction with a UF controlled dialysis machine to enable hemodiafiltration therapy to be performed. The advantage is that one can fully utilize a current functioning dialysis machine to perform a hemodiafiltration therapy as opposed to purchasing a completely new machine that offers this capability.

A method for filtering blood is disclosed that in one embodiment includes the steps of depositing unfiltered blood along at least one side of a semi-permeable surface having multiple pores, depositing target tissue along at least an opposing side of the semi-permeable surface, and permitting the unfiltered blood to flow at least partially along the semi-permeable surface to filter the unfiltered blood. Embodiments of the invention can remove self-directed autoantibodies from the blood while reducing the complications of conventional treatments such as plasmaphoresis, and return the patient's own blood cells and its plasma components, less the disease-causing self-directed antibodies. A blood filter and a blood bag are also disclosed.

A method for filtering blood is disclosed that in one embodiment includes the steps of depositing unfiltered blood along at least one side of a semi-permeable surface having multiple pores, depositing target tissue along at least an opposing side of the semi-permeable surface, and permitting the unfiltered blood to flow at least partially along the semi-permeable surface to filter the unfiltered blood. Embodiments of the invention can remove self-directed autoantibodies from the blood while reducing the complications of conventional treatments such as plasmaphoresis, and return the patient's own blood cells and its plasma components, less the disease-causing self-directed antibodies. A blood filter and a blood bag are also disclosed.

Membrane cell stack arrangement and method of manufacturing such a membrane cell stack arrangement. The arrangement has a housing (2) having a central axis, and a stack of membrane cells (4), each membrane cell (6) being arranged inside the housing (2) with a major surface (6a) of the membrane cell (6) oriented substantially perpendicular to the central axis. Each membrane cell (6) has a corner recess (12) between each two adjacent sides of at least four sides (10a-d). Sealing compartments (14) are provided by corner recesses (12) of adjacent membrane cells of the stack of membrane cells (4) in co-operation with a part of an inner surface (2a) of the housing (2).

Membrane cell stack arrangement and method of manufacturing such a membrane cell stack arrangement. The arrangement has a housing (2) having a central axis, and a stack of membrane cells (4), each membrane cell (6) being arranged inside the housing (2) with a major surface (6a) of the membrane cell (6) oriented substantially perpendicular to the central axis. Each membrane cell (6) has a corner recess (12) between each two adjacent sides of at least four sides (10a-d). Sealing compartments (14) are provided by corner recesses (12) of adjacent membrane cells of the stack of membrane cells (4) in co-operation with a part of an inner surface (2a) of the housing (2).