Abstract: Systems and methods are provided for depleting platelets from blood. The system includes a multi-stage blood separation chamber in which blood is separated into red blood cells and platelet-rich plasma. The platelet-rich plasma is conveyed from a first stage of the chamber to a second stage, where it is separated into platelets and platelet-poor plasma. The platelet-poor plasma is conveyed out of the chamber while the platelets are allowed to accumulate in the second stage of the chamber. When a controller of the system has determined that the maximum chamber capacity of platelets has been accumulated in the second stage of the chamber, the platelets are conveyed out of the chamber to a waste container. The cycle of separating blood into its components, accumulating platelets in the chamber, and then flushing the platelets from the chamber is repeated until a target platelet concentration of the blood is achieved.

Abstract: Systems and methods are provided for separating blood into two or more components for collection of red blood cells, plasma, or both red blood cells and plasma. A blood separation system includes a blood separation device and a fluid flow circuit configured to be mounted to the blood separation device. The blood separation device includes a centrifugal separator and a spinning membrane separator drive unit, with the blood being separated into its constituents by the centrifugal separator. Separated plasma may be collected following separation by the centrifugal separator or may first be conveyed from the centrifugal separator into the spinning membrane separator drive unit to separate cellular blood components from the plasma prior to collection of the filtered plasma. The cellular blood components filtered from the plasma may be retained in the circuit as a waste product or may be flushed out of the circuit to a recipient.

Abstract: A fluid separation device includes a centrifuge in which a fluid is separated into at least two components, with an interface therebetween. At least a portion of one of the separated fluid components is removed from the centrifuge and flows through a vessel. Light is reflected off of the separated fluid component in the vessel and received and analyzed to determine its main wavelength. If the main wavelength is higher than a maximum value, a target location of the interface is changed. If the main wavelength is less than the maximum value, then the location of the interface is compared to the target location. When the interface is sufficiently close to the target location, the optical density of the separated fluid component in the vessel is compared to a minimum value. If the optical density is less than the minimum value, the target location of the interface is changed.

Abstract: A variety of fill options is provided for a cell processing system. Certain options relate to a filling system associated with the cell processing system, the filling system comprising one or more filling stations, each with at least one container that may receive product from a container associated with a cell processing system. Other options relate to a syringe assembly that receives a product from a container associated with a cell processing system.

Abstract: Systems and methods are provided for deriving a platelet product from a plurality of buffy coats. A plurality of buffy coats are separately collected, for example, using a conventional floor centrifuge. Plasma and/or a platelet additive solution may be added to the buffy coats. The buffy coats are pooled into a container and conveyed into a centrifuge or are sequentially conveyed into the centrifuge without being pooled, where they are continuously processed to separate platelets from the other cellular blood components. The separated platelets are conveyed out of the centrifuge as a platelet product, which may be passed through a leukocyte removal filter to reduce the white blood cell content of the platelet product. By continuously separating the buffy coats, fewer buffy coats are required to produce a single-dose platelet product, while also allowing for the derivation and collection of a plurality of single-dose platelet products.

Abstract: Blood from a blood source is drawn into a fluid flow circuit. A mononuclear cell product is separated from the blood, followed by at least a portion of the mononuclear cell product being conveyed into an electroporation device without disconnecting the blood source from the fluid flow circuit. The electroporation device opens pores in a membrane of at least one of the cells of the mononuclear cell product to allow DNA material (which is added to the mononuclear cell product prior to electroporation) to enter and modify the genome of the cell. At least a portion of the modified mononuclear cell product is returned to the blood source. The mononuclear cell product may be washed prior to being conveyed into the electroporation device. The modified mononuclear cell product may be washed after exiting the electroporation device.

Abstract: Blood in a separation chamber is separated into a red blood cell layer, a plasma constituent, and a mononuclear cell-containing layer. A portion of the plasma constituent exits the chamber via a plasma outlet, while a first portion of the red blood cell layer exits via a red blood cell outlet. A second portion of the red blood cell layer exits the chamber via the red blood cell outlet and is collected. At least a portion of the collected red blood cell layer may then be conveyed to the chamber via the red blood cell outlet to convey at least a portion of the mononuclear cell-containing layer out of the chamber via the plasma outlet for collection. A second portion of the plasma constituent may be conveyed out of the chamber via the plasma outlet to more fully collect the mononuclear cell-containing layer without the use of collected plasma.

Abstract: A method and system for treating a biological fluid within a container by subjecting the container to light is provided. The system includes a fluid treatment chamber for receiving the container of biological fluid; an agitation assembly for oscillating the container of biological fluid within the fluid treatment chamber including a variable speed motor; one or more light sources in proximity to the fluid treatment chamber; at least one sensor for sensing a condition of the biological fluid in the container; and a programmable controller.

Abstract: A system for separating a suspension of biological cells is disclosed comprising a single-use fluid circuit and a durable hardware component. The fluid circuit comprises a separator having a housing that includes an inlet for introducing the suspension of biological cells into the gap, a first outlet in communication with the gap for flowing a first type of cells from the separator, and a second outlet in communication with the second side of the filter membrane for flowing a second type of cells from the separator.

Abstract: Methods and systems for cryopreservation of platelets are disclosed. Platelets collected in a collection chamber of a plateletpheresis device may be combined with a cryopreservative solution directly in the collection chamber and joined with a kit including a storage unit for storage in a cryopreserved state and thawing.

Abstract: Fluid separation chambers are provided for rotation about an axis in a fluid processing system. The fluid separation chamber may be provided with first and second stages, with the first and second stages being positioned at different axial locations. In another embodiment, at least one of the stages may be provided with a non-uniform outer diameter about the rotational axis, which may define a generally spiral-shaped profile or a different profile for fractionating a fluid or fluid component. One or more of the stages may also have a varying outer diameter along the axis. The profile of the chamber may be provided by the chamber itself (in the case of rigid chambers) or by an associated fixture or centrifuge apparatus (in the case of flexible chambers).

Abstract: A system for separating a suspension of biological cells is disclosed comprising a single-use fluid circuit and a durable hardware component. The fluid circuit comprises a separator having a housing that includes an inlet for introducing the suspension of biological cells into the gap, a first outlet in communication with the gap for flowing a first type of cells from the separator, and a second outlet in communication with the second side of the filter membrane for flowing a second type of cells from the separator.

Abstract: A fluid to be optically monitored may be optically mixed to modify the apparent color perceived by a colorimetric optical sensor device. The fluid is positioned within a fluid compartment of a vessel also including a contrast compartment adjacent to the fluid compartment. The contrast compartment is configured to have a contrast color with a known main wavelength that is different from the main wavelength of the fluid color. Light from a broadband light source of the colorimetric optical sensor device is reflected off of the vessel, with the received light being received by an optical spectrometer. The optical spectrometer analyzes the received light to determine a main wavelength of the received light, followed by a controller determining a characteristic of the fluid, which is based on the main wavelengths of the received light and the contrast color and the percentage of the vessel occupied by the fluid compartment.

Abstract: A system and method of recording a state of a medical device having a disposable component includes operating the medical device to provide a medical procedure using a disposable component. The disposable component is installed on an external surface of the medical device housing by a human operator and removable therefrom for disposal. The system and method include detecting an error condition on the medical device and, in response, acquiring an image from a camera coupled to the medical device. The image, representing the disposable component and the external housing, is stored in a memory of the medical device and is accessible for later retrieval.

Abstract: A plasmapheresis system and a method for operating a plasmapheresis system are provided by which the volume/weight of anticoagulated plasma that is collected is optimized. In one example, a nomogram is provided that utilizes the donor's hematocrit to calculate the volume/weight of raw plasma within a plasma product having the maximum volume permitted by the FDA nomogram. In a plasmapheresis procedure having multiple collection phases followed by a reinfusion cycle in which concentrated red blood cells are returned to the donor, the volume of plasma product to be collected is calculated prior to the start of each collection cycle to account for the donor's increasing hematocrit, thus resulting in a greater total volume of plasma product to be collected during the plasmapheresis procedure.

Abstract: Fluid separation chambers are provided for rotation about an axis in a fluid processing system. The fluid separation chamber may be provided with first and second stages, with the first and second stages being positioned at different axial locations. In another embodiment, at least one of the stages may be provided with a non-uniform outer diameter about the rotational axis, which may define a generally spiral-shaped profile or a different profile for fractionating a fluid or fluid component. One or more of the stages may also have a varying outer diameter along the axis. The profile of the chamber may be provided by the chamber itself (in the case of rigid chambers) or by an associated fixture or centrifuge apparatus (in the case of flexible chambers).

Abstract: Systems and methods are provided for collecting a platelet product from a fluid including platelets and plasma. Platelet-rich plasma is separated from at least a portion of another constituent of the fluid and then may be further separated into concentrated platelets and platelet-poor plasma, with the concentrated platelets being resuspended. Separated platelets (in the form of platelet-rich plasma or resuspended platelets) are conveyed through a size exclusion filter and into a platelet storage container. The size exclusion filter is configured to remove platelet clumps and/or particles larger than a platelet from the separated platelets. Subsequently, an additive is conveyed through the size exclusion filter and into the platelet storage container. Conveying additive through the size exclusion filter improves platelet recovery in the platelet product by displacement of separated platelets with the additive and may also break up any platelet clumps that are present in the size exclusion filter.

Abstract: A system for concentrating cells, wherein a syringe comprises a lumen and an axial end comprising a port and a radial end closed to liquid flow. A plunger divides the axial and radial ends, and the syringe is configured to hold a cellular suspension. A filter disposed at the radial end is configured to maintain sterility of the syringe. A cap comprises a vent disposed at the radial end. The plunger is configured to be actuated towards the axial end by air pressure being applied into the radial end and the plunger is configured to be actuated towards the radial end by a vacuum being applied into the radial end.

Abstract: A device for connecting first and second medical fluid flow systems includes a linear movement carriage system that is positioned within a housing. The carriage system includes first and second connector holders configured to hold first and second connectors of the first and second medical fluid flow systems, respectively. A coupler holder is configured to hold a coupler and is positioned substantially between the first and second connector holders. The first and second connector holders and the coupler holder are relatively moveable between a separated configuration, where the first and second connectors and the coupler are located in relatively spaced apart positions, and a joined configuration, where the first and second connectors engage the coupler. An ultraviolet light source is positioned in the housing so as to irradiate first and second connectors and the coupler.

Abstract: Systems and methods for performing online extracorporeal photopheresis of mononuclear cells are disclosed. Whole blood is removed from a patient and introduced through a processing set into a separation chamber to separate the desired cell population from the blood. The separated cell population is processed through the set which is associated with a treatment chamber where the cells are treated. Once treated, the cells are returned to the patient. The processing set remains connected to the patient during the entire ECP treatment procedure and provides an online, sterile closed pathway between the separation chamber and the treatment chamber.