The present invention provides a hollow fiber membrane module which makes it possible to concentrate incubated platelets by efficiently removing water from an incubated platelet suspension liquid containing incubated platelets while suppressing deterioration of the function of the incubated platelets. The present invention provides an incubated platelet concentration module in which a plurality of hollow fiber membranes each having pores with an average pore diameter of 2 μm or less on a surface of the hollow fiber membrane are packed in a casing having at least one inlet for supplying an incubated platelet suspension liquid before concentration into the hollow fiber membranes, wherein a value (X/Y1) obtained by dividing a total cross-sectional area (X) of the plurality of hollow fiber membranes by a total cross-sectional area (Y1) of the least one inlet is 4.0 or less.

A system for cleaning feed water of variable quality, the system comprising an inlet for selectively delivering feed water to one or other of at least two feed chambers, each feed chamber having a delivery pipe for delivering feed water to a reverse osmosis or nanofiltration; a pump to deliver the feed water from one of the chambers through its associated delivery pipe to the reverse osmosis or nanofiltration to create a concentrated feed stream and a product water stream; return pipes for selectively returning the concentrated feed stream to one or other of the at least two feed chambers; a product water outlet for removal of the product water; and means for switching the delivery of the concentrated feed stream between the selectable return pipes upon detection of a predetermined reduction in efficiency within one or another of the feed chambers.

A humidifier is provided having a humidifier module which is arranged between end plates and has a steam-permeable membrane, wherein on each of the two sides of the membrane, a flow field frame having a plurality of bridges defining a flow field is arranged, and between each flow field frame and the membrane a seal is arranged. A motor vehicle with a fuel cell device having a humidifier is also provided.

The specification discloses a portable dialysis machine having a detachable controller unit and base unit. The controller unit includes a door having an interior face, a housing with a panel, where the housing and panel define a recessed region configured to receive the interior face of the door, and a manifold receiver fixedly attached to the panel. The base unit has a planar surface for receiving a container of fluid, a scale integrated with the planar surface, a heater in thermal communication with the planar surface, and a sodium sensor in electromagnetic communication with the planar surface. Embodiments of the disclosed portable dialysis system have improved structural and functional features, including improved modularity, ease of use, and safety features.

A system for cleaning feed water of variable quality, the system comprising an inlet for selectively delivering feed water (FW) to one or other of at least two feed chambers (2,4), each feed chamber having a delivery pipe (2i, 4i) for delivering feed water to a reverse osmosis or nanofiltration (8); a pump (6) to deliver the feed water from one of the chambers (2, 4) through its associated delivery pipe (2i, 4i) to the reverse osmosis or nanofiltration (8) to create a concentrated feed stream and a product water stream (PW); return pipes (2R, 4R) for selectively returning the concentrated feed stream to one or other of the at least two feed chambers (2, 4); a product water outlet for removal of the product water (PW); and means for switching the delivery of the concentrated feed stream between the selectable return pipes (2R, 4R) upon detection of a predetermined reduction in the efficiency of the RO or NF process within one or other of the feed chambers (2, 4). The pressure of the concentrated feed stream is reduced to atmospheric pressure prior to its delivery back to the chamber and the feed stream passes through a desaturation unit (20).

The invention concerns a filtration assembly for microbiological testing and a method of using the filtration assembly for that purpose. The filtration assembly (1) comprises a ring-like membrane support (10) holding a filtration membrane (11), a cylindrical reservoir (20) of which opposite axial ends have openings and one axial opening is removably and fluid-tightly attachable to the membrane support (10) to define a sample volume adjacent to the filtration membrane (11) on one axial side of the membrane support (10); and a lid device (40) removably and fluid tightly attachable to the other axial opening of the reservoir (20) to close the opening. Further, the lid device (40) is removably and fluid tightly attachable to the membrane support (10) so as to seal the one axial side of the membrane support (10) from the environment.

Helical separation membranes, helical separation assemblies including one or more helical separation membranes, and separation technologies that include one or more helical membrane assemblies are described. In embodiments the helical membrane assemblies include one or more one or more helical membrane leaves. Methods of making helical separation membranes, helical membrane assemblies, helical membrane modules that include one or more helical membrane assemblies are also described.

The present invention relates to a cartridge of a humidifier for a fuel cell for humidifying dry gas supplied from the outside by using wet gas discharged from a fuel cell stack, and to a humidifier for a fuel cell, the cartridge of a humidifier for a fuel cell comprising: an inner case having an opening at the end thereof and including a plurality of hollow fiber membranes; and a first gas inlet and a first gas outlet formed in the inner case.

A filtration base for vacuum membrane filtration applications comprises a membrane bearing area on the upper side of the filtration base, which has a bearing structure and a supporting contour surrounding the bearing structure for a membrane filter placed in the membrane bearing area. The supporting contour has at least one notch which is in flow connection with the bottom side of the membrane bearing area and which is arranged such that it is adapted to be selectively covered by a membrane filter placed in the membrane bearing area.

An extracorporeal blood treatment machine for carrying out a blood treatment including a machine front on which a hollow fiber filter module is arranged in a horizontal position, which hollow fiber filter module includes a cylindrical housing, a blood chamber having a blood inlet nozzle and a blood outlet nozzle and a solution chamber having a solution inlet nozzle extending transversely to the longitudinal direction of the hollow fiber filter module and a solution outlet nozzle extending transversely to the longitudinal direction of the hollow fiber filter module, the solution chamber being semi-permeably communicated at least in portions with the blood chamber, wherein a height potential is present in the horizontal position between the solution inlet nozzle and the solution outlet nozzle so that drainage of solution is enabled via one of the solution nozzles and evacuation of air bubbles is enabled via an other of the solution nozzles.