Abstract:
The present invention relates to a method for determining an effective dose of monochromatic or polychromatic light from one or more light sources to inactivete microorganisms present in a biological fluid, preferably a non-trannsparent fluid. Moreover, there is provided a method for the inactivation of microorganism in a biological fluid in a flow-through-reactor. Moreover, the invention advantageously provides a flow-through-reactor with one or more thermostated light sources. The invention further provides a method of controlling the light sum dose of monochromatic or polychromatic light emitted from one or more light sources to effectively inactivate microorganisms present in a biological fluid in a batch reactor.
Abstract:
The present invention relates to a method for determining an effective dose of monochromatic or polychromatic light from one or more light sources to inactivete microorganisms present in a biological fluid, preferably a non-trannsparent fluid. Moreover, there is provided a method for the inactivation of microorganism in a biological fluid in a flow-through-reactor. Moreover, the invention advantageously provides a flow-through-reactor with one or more thermostated light sources. The invention further provides a method of controlling the light sum dose of monochromatic or polychromatic light emitted from one or more light sources to effectively inactivate microorganisms present in a biological fluid in a batch reactor.
Abstract:
A validatable method for determining a photochemically effective dose for inactivating pathogens in a fluid sample is described herein. In particular, the instant invention covers methods for determining a photochemically effective doses sufficient to inactivate pathogens in a biological sample while leaving biologically active substances of interest unaffected. A batch irradiation reactor effective for inactivating pathogens in biological samples is also described.
Abstract:
Membranes and methods for making membranes are disclosed. The membranes (10) include a polymeric matrix (16) and a particulate material immobilized within the matrix. The membrane may further include a skin layer (19) having randomly spaced surface pores (21). The membranes may find particular application in methods and apparatus for removing organic compounds from a biological fluid as part of a pathogen inactivation treatment.
Abstract:
Membranes and methods for making membranes are disclosed. The membranes (10) include a polymeric matrix (16) and a particulate material immobilized within the matrix. The membrane may further include a skin layer (19) having randomly spaced surface pores (21). The membranes may find particular application in methods and apparatus for removing organic compounds from a biological fluid as part of a pathogen inactivation treatment.
Abstract:
A membrane (10) and a method for making a membrane (10) are disclosed. The membrane (10) includes a polymeric matrix (16) and a particulate material immobilized within the matrix (16). The membrane (10) may include a support (18) within the core of the mebrane (10) and may further include a skin (19). The membrane (10) may find particular application in methods and apparatus for removing organic compounds from a biological fluid as part of a pathogen inactivation treatment.
Abstract:
A material (16) is formed into hollow fiber form, and the surface characteristics of the interior bore is selectively modified in a predetermined fashion by a reactive lumen fluid. Nucleophilic materials, such as regenerated cellulose, can be formed into hollow fibers and simultaneously modified to improve their biocompatibility in accordance with the invention.
Abstract:
A device and method for inactivating pathogens in therapeutic fluids with sterilizing radiation in a continuous flow arrangement while exhibiting radiation dose uniformity and narrow residence time distribution of the fluid within the device. The device (10) comprises a radiation permeable cylindrical tube (12) having a concentric cylindrical rotor (14) disposed therein, thereby providing a thin gap (16) therebetween. A top plate (18) having a fluid outl et (26) and a bottom plate (20) having a fluid inlet (24) seal the cylindrical tube (12). The inlet (24) and outlet (26) are both in fluid communication with the thin gap (16). A rotor shaft (36) is diposed axially through the cylindrical rotor (14) and is connected to a motor (30). A pump provides fluid flow through the device (10). A radiation source provides sterilizing radiation to the fluid through the cylindrical tube (12). As the fluid flows, the motor (30) drives the rotor (14) to impart Taylor vortices to the fluid flow , which exchanges the fluid closer to the cylindrical tube (12) with the fluid closer to the rotor (14).