Abstract: A blood separation chamber for rotation about an axis includes an interior channel, which includes a recess that extends outside the bounds of the walls establishing separation zone. The recessed interior channel permits the yields of individual blood components separated in the chamber to be. maximized without cross-contamination or contamination by other components present in the chamber.

Abstract: Blood processing systems and methods convey blood cells from a blood cell source into a blood component collection flow channel that includes a blood cell storage container and an in-line filter to remove leukocytes from blood cells before entering the blood cell storage container. The systems and methods also convey additive solution from an additive solution source into the blood component collection flow channel. The systems and methods alternate the conveyance of blood cells through the filter with the conveyance of additive solution through the filter.

Abstract: A yoke rotates an umbilicus about a rotational axis, which, in turn, imparts rotation to a blood processing chamber coupled to the umbilicus. The yoke carries first and second umbilicus support surfaces that inhibit travel of the umbilicus in radial directions toward and away from the rotational axis.

Abstract: Systems and methods separate blood cells from whole blood and pump the separated blood cells through an in-line leukofilter to a blood cell storage container. The leukofilter comprises a filtration medium enclosed within a flexile housing. The systems and methods include a fixture to restrain expansion of the flexible filter housing during operation of the pump. The fixture includes a bracket to enable its releasable attachment to the blood processing device employed to carry out the separation process.

Abstract: A blood separation assembly comprises a blood processing chamber having a base including formed walls that define a separation channel. A centrifuge rotor is rotatable about a rotational axis. A latch assembly comprises a latch arm that is pivotally mounted on the centrifuge rotor. The latch arm can be moved between a chamber-retaining position engaging the blood processing chamber, to secure the blood processing chamber to the centrifuge rotor, and a chamber- releasing position free of engagement with the blood processing chamber, to enable removal of the blood processing chamber from the centrifuge rotor. The latch assembly also includes a pawl movable on the centrifuge rotor between a first position adjacent the latch arm and a second position spaced from the latch arm. The pawl includes a locking element that engages the latch arm when the latch arm is in the chamber-retaining position, to resist movement of the latch arm toward the chamber-releasing position.

Abstract: Systems and methods detect when a potential donor draw occlusion condition occurs. The systems and methods attempt to rectify the condition, e.g., by increasing pressure of the pressure cuff and/or decreasing the commanded draw rate, before generating a processing-halting vein occlusion alarm.

Abstract: Blood processing systems and methods employ two sensors, one to detect a condition of plasma exiting a separation device and another sensor to detect a condition of a cellular component exiting the separation device. The first sensor detects, e.g., contamination of the plasma due to presence of unwanted cellular components. The second sensor detects, e.g., dilution of the cellular component due to presence of plasma. Blood processing parameters are carried out based, at least in part, by conditions detected by one or both of the sensors.

Abstract: A blood separation chamber comprises a base that includes formed walls that define a hub. A separation channel extends about the hub. A flow passage extends between the hub and the separation channel. The hub enables attachment of external tubing to convey blood to and from the separation channel through the hub.

Abstract: Systems and methods for efficiently separating blood in a rotating field convey blood into a blood separation chamber through an inlet passage for separation into a blood component. The systems and methods convey the blood component from the separation chamber through an outlet passage. The systems and methods rotate the blood separation chamber about an axis in direction of blood flow in the flow path from the inlet passage toward the outlet passage. It has been discovered that, by rotating the chamber during blood separation in the same direction as the flow of whole blood from inlet to outlet disturbances due, e.g., Coriolis effects can be minimized, resulting in increased separation efficiencies.

Abstract: A portable pump apparatus for use in CAPD is provided as well as a method for providing CAPD to a patient. The portable pump apparatus for CAPD has a housing containing a pump, and a power supply, preferably a rechargeable battery, connected to the housing and electrically connected to drive the pump. A control knob on the housing is constructed and arranged to adjust the speed of the pump. A cover is mounted to the housing to enclose the pump. The cover has an inlet port and an outlet port to securely hold a tube thereunder. The portable pump apparatus for CAPD further has a display for providing drainage information and a clip so that the apparatus can be worn by a patient.

Abstract: A portable pump apparatus for use in CAPD is provided as well as a method for providing CAPD to a patient. The portable pump apparatus for CAPD has a housing containing a pump, and a power supply, preferably a rechargeable battery, connected to the housing and electrically connected to drive the pump. A control knob on the housing is constructed and arranged to adjust the speed of the pump. A cover is mounted to the housing to enclose the pump. The cover has an inlet port and an outlet port to securely hold a tube thereunder. The portable pump apparatus for CAPD further has a display for providing drainage information and a clip so that the apparatus can be worn by a patient.

Abstract: A portable pump apparatus for use in CAPD is provided as well as a method for providing CAPD to a patient. The portable pump apparatus for CAPD has a housing containing a pump, and a power supply, preferably a rechargeable battery, connected to the housing and electrically connected to drive the pump. A control knob on the housing is constructed and arranged to adjust the speed of the pump. A cover is mounted to the housing to enclose the pump. The cover has an inlet port and an outlet port to securely hold a tube thereunder. The portable pump apparatus for CAPD further has a display for providing drainage information and a clip so that the apparatus can be worn by a patient.