An extracorporeal photopheresis system includes a separator with a disposable fluid circuit including a treatment container, an irradiation device configured to treat the contents of the treatment container, and a controller configured to control the system to perform a procedure including drawing anticoagulated whole blood into the fluid circuit from a blood source and returning to the blood source a treated target cell component, a portion of a red blood cell component remaining in the fluid circuit, and/or a portion of a plasma component remaining in the fluid circuit. The controller is further configured to estimate an end-of-procedure fluid balance estimated based on manual or automatic inputs including a patient body weight associated with the blood source and a total blood volume of the blood source, indicate the fluid balance to an operator, and receive one or more changes that affect the fluid balance after indicating the fluid balance.

Mid-procedure termination of a mononuclear cell collection procedure may prevent collection of an amount of red blood cells that is required to harvest a complete mononuclear cell product. Blood separation systems and methods are provided for minimizing the impact of or recovering from mid-procedure termination of such a mononuclear cell collection procedure. According to one approach, blood or separated red blood cells are conveyed into a red blood cell collection container relatively early in the procedure to minimize the impact of a later termination of the procedure. According to another approach, blood and/or separated red blood cells within a fluid processing assembly are redirected through the fluid processing assembly following mid-procedure termination to allow for at least partial mononuclear cell collection. According to yet another approach, a double-needle fluid processing assembly may be converted into a single-needle configuration to allow for continued processing following mid-procedure termination.

Treatment of carbon monoxide poisoning of a body by removal of a portion of the blood from the body, placing the portion in an exposure cell, exposing the portion in the cell to light of wave length and intensity that causes dissociation of carbon monoxide from hemoglobin, and returning the portion to the body. The intensity and wave length of the light is sufficient to dissociate a therapeutically-effective amount of carbon monoxide from the hemoglobin in the blood. The blood is circulated from and to the body through a concentric double lumen cannula. The wave lengths of the light are 540 and/or 570 nanometers. The cell exposes the blood to at least 9.5 Joules of dissociative light per milliliter of blood, and least 9.5 Watts of dissociative light per milliliter of blood per second. Oxygen is provided to, and the dissociated carbon monoxide is removed from the system.

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.

Methods are provided for treating blood monocytes to produce functional antigen presenting dendritic cells. An extracorporeal quantity of a subject's blood is treated to separate the blood and produce a leukocyte concentrate comprising monocytes and plasma containing proteins. The leukocyte concentrate comprising monocytes and plasma containing proteins is pumped through a plastic treatment device, such as a photopheresis device. The resulting treated cells may be incubated for a sufficient period of time to allow the monocytes to form dendritic cells, or the treated cells may be reinfused directly to the subject.

Provided is a blood component separation device and related method, each capable of separating a blood component from blood and rapidly performing a virus inactivation process on the separated blood component. The blood component separation device includes a blood component separation section, provided in a centrifuge, configured to separate a blood component from blood by centrifugation, a diluting section configured to dilute, in a diluent containing riboflavin, concentrated red blood cells separated by the blood component separation section, and a UV light emitting unit configured to perform a virus inactivation process by exposing the concentrated red blood cells thus diluted to the UV light.

Mid-procedure termination of a mononuclear cell collection procedure may prevent collection of an amount of red blood cells that is required to harvest a complete mononuclear cell product. Blood separation systems and methods are provided for minimizing the impact of or recovering from mid-procedure termination of such a mononuclear cell collection procedure. According to one approach, blood or separated red blood cells are conveyed into a red blood cell collection container relatively early in the procedure to minimize the impact of a later termination of the procedure. According to another approach, blood and/or separated red blood cells within a fluid processing assembly are redirected through the fluid processing assembly following mid-procedure termination to allow for at least partial mononuclear cell collection. According to yet another approach, a double-needle fluid processing assembly may be converted into a single-needle configuration to allow for continued processing following mid-procedure termination.

An irradiation device includes a processing container including a first chamber, a second chamber and at least one narrow passage in fluid communication at a first end with the first chamber and at a second end with the second chamber, and a rotatable table on which the processing container is mounted, the table having a first state wherein the first chamber is disposed at a higher elevation than the second chamber, and a second state wherein the second chamber is disposed at a higher elevation than the first chamber. The irradiation device also includes ultraviolet (UV) light source disposed proximate to the narrow passage and configured to irradiate fluid passing through the narrow passage.

Described is a method for controlling fluid volume balance. A controller is configured with a first set of inputs comprising a hematocrit, a total blood volume, and an ACD ratio. A maximum extracorporeal RBC amount during the procedure is estimated based on the first set of inputs. A fluid circuit is primed with a priming fluid. Whole blood is drawn from a blood source and separated into a RBC component, a target cell component, and a plasma component. The target cell component is directed to a product container. The product container comprising the target cell component is treated. A treated target cell component, a portion of the RBC component remaining in the fluid circuit, and/or a portion of the plasma component remaining in the fluid circuit are returned to the blood source. A first response action is provided if the maximum extracorporeal RBC amount estimated is above a programmed limit.

Described is a method for controlling fluid volume balance. A controller is configured with a first set of inputs comprising a hematocrit, a total blood volume, and an ACD ratio. A maximum extracorporeal RBC amount during the procedure is estimated based on the first set of inputs. A fluid circuit is primed with a priming fluid. Whole blood is drawn from a blood source and separated into a RBC component, a target cell component, and a plasma component. The target cell component is directed to a product container. The product container comprising the target cell component is treated. A treated target cell component, a portion of the RBC component remaining in the fluid circuit, and/or a portion of the plasma component remaining in the fluid circuit are returned to the blood source. A first response action is provided if the maximum extracorporeal RBC amount estimated is above a programmed limit.