Abstract:
A device has processing hardware to carry out a blood processing procedure. A processing control manager (18) resides on the device to monitor status conditions over time during the blood processing procedure. A data interface also resides on the device. The data interface includes a flash memory data storage medium (C1-C3) formatted to allocated discrete block file spaces to receive data. Chronologic data or time-specific data are created based upon sensed conditions by a data generator task, which also resides on the device. A file manager task appends chronologic block file, which, when read, provides a time-ordered account of processing activities or hardware conditions. The file manager also operates to block-write time-specific data to another allocated file space, which when read, creates a snap-shot of processing conditions at a given point in time. The data file structure created on the flash memory medium withstands corruption of data due to power failure (publish figure 1).
Abstract:
Blood processing systems and methods monitor hardware status conditions during a blood processing procedure. The systems and methods generate present system data based upon monitored hardware status conditions. The systems and methods generate an output (348) predictive of at least one future hardware status condition, based upon an analysis of present system data generated over time. The systems and methods write the present system data to a flash memory storage medium. The systems and methods process the output for printing, or viewing, or offloading to a remote station.
Abstract:
A peristaltic pumping apparatus and associated method control power to the pump rotor to establish, during a preestablished first time period, a selected first angular velocity and sequentially establishing during a preestablished second time period immediately following the first time period a second angular velocity different than the first angular velocity. In this fashion, the apparatus and method achieve flow rates well below the minimum continuous flow rate of the rotor.
Abstract:
A biological suspension processing system is disclosed that may include a suspension treatment device for treating one or more components of a biological suspension, a first fluid flow path for introducing a suspension into the treatment device and a second fluid flow path for withdrawing a constituent of the suspension from the device. At least on microelectromechanical (MEM) sensor communicates with one of the fluid flow paths for sensing a selectedcharacteristic of the fluid therewith. The MEM sensor may be located elsewhere, such as on a container or bag and communicate with the interior for sensing a characteristic of the fluid contained therein. A wide variety of characteristics may be sensed, such as flow rate, pH, cell type, cell antigenicity, DNA, viral or bacterial presence, cholesterol, hematocrit, cell concentration, cell count, partial pressure, pathogen presence, or viscosity.
Abstract:
A device has processing hardware to carry out a blood processing procedure. A processing control manager resides on the device to monitor status conditions over time during the blood processing procedure. A data interface also resides on the device. The data interface includes a flash memory data storage medium formatted to allocate discrete block file spaces to receive data. Chronologic data or time-specific data are created based upon sensed conditions by a data generator task, which also resides on the device. A file manager task appends chronologic data to an allocated file space to create a chronologic block file, which, when read, provides a time-ordered account of processing activities or hardware conditions. The file manager also operates to block-write time-specific data to another allocated file space, which, when read, creates a snap-shot of processing conditions at a given point in time. The data file structure created on the flash memory medium withstands corruption of data due to power failure.
Abstract:
A blood separation system operates in a first mode to convey whole blood into the inlet region (48) of a blood processing chamber (38) for centrifugal separation into packed red blood cells, a plasma constituent, and an interface, which carries mononuclear cells, between the packed red blood cells and the plasma constituent. The system removes packed red blood cells and the plasma constituent from the chamber (38), while maintaining the interface within the chamber (38). The system operates in a second mode to remove the interface from the chamber (38) by conveying packed red blood cells into the inlet region (48). An outlet path (46) conveys the removed interface from the chamber (38). The outlet path (46) includes a first sensing element (OS) to locate mononuclear cells in the removed interface and provide a sensed output upon locating mononuclear cells.
Abstract:
A controller provides an abstract, "virtual" interface between the software based applications resident in the controller and the hardware elements of the fluid processing system. The controller also provides a straightforward yet very interactive dual region user interface.
Abstract:
A blood processing assembly (10) includes a centrifuge container (12) within a heated housing or chamber. A fail safe spill or splash detector (30) is located within the inner wall of the housing. The detector includes a pair of parallel electrodes (32, 34) separated from each other by a small gap. The circuit detects a splash or droplet of liquid which conduct current between the electrodes.