Embodiments are described for treating a fluid, e.g., a biological fluid. The embodiments may include systems, apparatuses, and methods. Embodiments may provide for a flow cell, with a plurality of manipulation elements, through which a fluid is flowed. The fluid may be treated (e.g., exposed to energy) as it moves through the flow cell. In embodiments, the flow cell may be used to inactivate pathogens in the fluid.

An apparatus for the treatment of a liquid that includes a chamber having at least one inner surface, the chamber adapted for passage of a fluid therethrough. The chamber is at least 80 percent enclosed. The apparatus also includes an optional ultraviolet-transmissive tube disposed within the chamber and also adapted for the passage of the liquid therethrough. The apparatus further includes an ultraviolet lamp disposed within the chamber and, optionally, within the ultraviolet-transmissive tube. A reflective material is interposed between the chamber and the transmissive tube. The reflective material is adapted so as to reflect at least a portion of light emitted by the ultraviolet lamp, wherein the reflective material is at least 80 percent reflective.

Methods and systems for maintaining patient fluid balance during an extracorporeal cell treatment are disclosed. The method includes minimizing the amount of saline or other fluid that is returned to the donor. Saline used during priming of the fluid circuit may be used to increase the volume of the collected cells to arrive at a treatment-ready product with a suitable hematocrit.

The present invention relates to the use of a high-frequency electromagnetic field in method of dialysis where a dialyser is used for the exchange of substances, wherein the blood to be cleaned is exposed to a high-frequency electromagnetic field prior to and/or during contact with the dialyser, and to a dialysis machine for carrying out the use.

A method of collecting mononuclear cells includes separating plasma from cellular components of whole blood. The cellular components, which include mononuclear cells and red blood cells, are combined with plasma replacement fluid to form a first mixture. The mononuclear cells of the first mixture are separated from the red blood cells of the first mixture, which may be followed by extracorporeal photopheresis being performed on the mononuclear cells.

Selective extracorporeal blood disinfection systems and related methods are disclosed. The systems comprise an input tube forming a flowpath for the flow of infected blood. The systems further comprise a disinfection unit comprising a microbicidal light emitting device configured to emit visible light within the range of about 380-425 nm and/or about 500-700 nm, and a treatment flowpath in communication with the input tube that is substantially transparent to the emitted light of the microbicidal light emitting device for receiving at least a portion of the flow of the infected blood therethrough. The microbicidal light emitting device effectuates a dose of the emitted light to the infected blood flowing through the treatment flowpath to disinfect the blood. The systems also comprise an output tube in fluid communication with the treatment flowpath forming a flowpath for the flow of the disinfected blood from the disinfection unit.

A method and a system for producing a change in a medium. The method places in a vicinity of the medium an energy modulation agent. The method applies an initiation energy to the medium. The initiation energy interacts with the energy modulation agent to directly or indirectly produce the change in the medium. The energy modulation agent has a normal predominant emission of radiation in a first wavelength range outside of a second wavelength range (WR2) known to produce the change, but under exposure to the applied initiation energy produces the change. The system includes an initiation energy source configured to apply an initiation energy to the medium to activate the energy modulation agent.

A blood processing apparatus including a blood supply unit, a centrifuge, a light irradiation unit, a filtering device, and a blood collection unit, which is characterized in that blood is introduced into the centrifuge and centrifuged, the centrifuged blood is passed through a transparent tube provided in the light irradiation unit while being irradiated with light applied, from the outside of the transparent tube, by a light irradiation device configured to include an infrared lamp with a wavelength of 830±5 nm, a red light-emitting diode (LED) lamp with a wavelength of 635±6 nm, a blue LED lamp with a wavelength of 420±5 nm, a green LED lamp with a wavelength of 530±5 nm, a yellow LED lamp with a wavelength of 585±5 nm, and ultraviolet (UV) lamps, and the blood irradiated with the light is filtered using the filtering device and collected in the blood collection unit.

Blood separation systems and methods are provided for separating blood under conditions of reduced plasma clarity. The system may assess plasma clarity by monitoring light transmissivity of plasma or comparing an actual plasma flow rate to an ideal plasma flow rate, with a low flow rate indicating decreased clarity, which may be addressed by increasing the plasma flow rate. For extracorporeal photopheresis, plasma clarity may be a factor in determining the dosage of irradiating light to apply to mononuclear cells. A fluid processing assembly for mononuclear cell collection may include visual indicium, which an operator may use to determine when to end mononuclear cell collection. The system may detect red blood cells flowing toward a mononuclear cell collection container and reverse the direction of flow to prevent red blood cells from entering the container. An operator may also be enabled to selectively begin and/or end harvesting of mononuclear cells.

The invention relates to a recipient (1) for ex-vivo treatment of biological liquids, which includes: a rigid body (2); a reservoir (3) provided inside the body (2), which is formed by a side wall (4), a rigid upper wall (5) and a rigid lower wall (6) and has an internal thickness defined by the separation between the upper wall (5) and the lower wall (6), at least one of the upper wall (5) or the lower wall (6) having a window area (7) configured to allow the passage of electromagnetic radiation from outside of the body (2) to the reservoir (3); two ports (8, 9) for liquids to gain access to the reservoir (3) from outside of the body (2); and closure means (10, 11) for the ports (8, 9), the closure means (10, 11) being configured to provide, jointly, the reservoir (3) with hermetic sealing against gases and liquids.