Abstract:
The present invention relates to chromatography matrices including ligands based on one or more domains of immunoglobulin-binding proteins such as, Staphylococcus aureus Protein A (SpA), as well as methods of using the same.
Abstract:
A take-off needle comprises a hollow lance having a distal end adapted to perform a insertion operation, said hollow lance being connected to at least one pipe provided with a spigot for it to be connected to a tube, and comprising a body for holding the hollow lance and pipe relative to each other such that the spigot projects from the holding body, said needle timber comprising two flanges held on respective sides of and spaced from the holding body by virtue of a spacer disposed between each flange and the holding body, said flanges extending in a longitudinal direction from the spigot to the vicinity of the proximal end of the hollow lance, the width of each flange being greater than the width of the portion of the holding body facing the flanges.
Abstract:
Sample preparation device for receiving in sealing relation one or more filter assemblies and one or more sample containers, each container uniquely positioned within the device to receive filtered sample from a designated filter. The device includes a body, a lid disposed on the body, a container tray, a base, an integrated seal on the body, a valve and a valve actuator. The tray can be disposed in a vacuum chamber defined by the lid and the body, and one or more sample containers can be disposed in the tray. When properly positioned in the tray in the vacuum chamber, each container is in fluid communication with a single respective filter assembly disposed in sealing relation in a respective aperture in the lid. A single actuation of a valve to place the vacuum chamber under vacuum causes the lid to seal to the base and drives the simultaneous filtration of a plurality of samples.
Abstract:
A number of novel improved microfluidic configurations and systems and methods of manufacture and operation for a microfluidic invasion assay system.
Abstract:
A normal flow filtration system having a housing with one or more filters contained within a bowl and attached to the outlet of the system. Liquid enters the bowl, contacts the surfaces of the one or more filters. Impurities are trapped in the filter and the filtered liquid flows through to the outlet. Parameter(s) such as flow rate, transmembrane pressure drop and/or time are measured and when met, filtration ceases. A backflushing occurs through the filter(s) so as to remove the impurities from the filter. This backwashed material is directed to an outlet of the bowl that is connected to a drain. Additionally a port formed in the side of the housing adjacent an outer surface of the filter(s) can be used to provide a lateral washing of the filter(s). The system is then recirculated in a downstream manner to reestablish equilibrium and filtration is then restarted.
Abstract:
The invention consists in a disposable module (31) for purifying a fluid, in particular water, adapted to form part of a thud purification system and comprising fluid purification means (25, 28), a housing (35) in which the purification means are housed, and means for removably connecting the purification module (31) to the purification system to establish fluid communication between the purification system and the purification module (31), characterized in that the housing (35) contains from the outset a cleaning agent (36) disposed to come into contact with the fluid caused to circulate inside the housing (35) to clean at least a portion of the purification system, it also consists in the purification system and corresponding fabrication and cleaning methods,
Abstract:
The device for the transfer of a medium comprises a magazine having two main faces (17) of which one is adapted to cooperate with a container and a lateral face (18) extending between said main faces (17) as well as at least one sliding valve (3) housed in a cavity of said magazine (2) and in which there is formed a transfer duct (59) for said medium which issues on said face (17) adapted to cooperate with said container, said valve (3) having a closed position in which it sealingly isolates said duct (59) from said container and an open position in which said duct (59) is placed in communication with said container; said valve (3) comprising a valve member (40), an isolation sleeve (41) surrounding at least partially said valve member (40) as well as spring means (58) adapted to be compressed by said valve member (40) when said valve (3) is in its open position.
Abstract:
The device for the transfer of a medium comprises a magazine having two main faces (17) of which one is adapted to cooperate with a container and a lateral face (18) extending between said main faces (17) as well as at least one sliding valve (3) housed in a cavity of said magazine (2) and in which there is formed a transfer duct (59) for said medium which issues on said face (17) adapted to cooperate with said container, said valve (3) having a closed position in which it sealingly isolates said duct (59) from said container and an open position in which said duct (59) is placed in communication with said container; said valve (3) comprising a valve member (40), an isolation sleeve (41) surrounding at least partially said valve member (40) as well as spring means (58) adapted to be compressed by said valve member (40) when said valve (3) is in its open position.
Abstract:
The present invention relates to a process for the sterile transfer of fluids, be they liquids or gases. It uses a presterilized device comprised of a body having a bore formed through at least a portion of its interior. Contained within the bore is a movable plunger. The body has a first and a second end. The first end contains a face designed to be attached to the upstream component. The second end is connected to a downstream component such as a filter, pipeline, sample bag and the like. The plunger has corresponding first and second ends. The first end of the plunger when it the closed position is in alignment with the face of the body which combined form a steamable surface and a sterile barrier against the environment to the rest of the interior of the body, the plunger and downstream components. The device is attached to an upstream component and the face and the first end of the plunger are steam sterilized in place.
Abstract:
Fluid transfer apparatus including a body having a bore formed through at least a portion of its interior. Contained within the bore is a movable plunger that moves without changing the axial dimensions of the body. A first end of the body contains a face designed to be attached to an upstream component. A second end of the body is connected to a downstream component such as a filter, pipeline, etc. A first end of the plunger, when it is in the closed position, is in alignment with the face of the body, which combined form a steamable surface and a sterile barrier against the environment to the remainder of the interior of the body, the plunger and downstream components. An outer annular collar is rotatable relative to the body and causes the plunger to move axially within the bore from an open to a closed position.