摘要:
A membrane separation device is disclosed along with systems and methods employing the device in blood processing procedures. In one embodiment, a spinning membrane separator is provided in which at least two zones or regions are created in the gap between the membrane and the shell, such that mixing of the fluid between the two regions is inhibited by a radial rib associated with the membrane that decreases the gap between the membrane and the shell to define two fluid regions, the ridge isolating the fluid in the two regions to minimize mixing between the two. Automated systems and methods are disclosed for separating a unit of previously collected whole blood into components, such as concentrated red cells and plasma, for collecting red cells and plasma directly from a donor in a single pass, and for cell washing. Data management systems and methods and priming methods are also disclosed.
摘要:
Certain examples provide systems, methods, and apparatus to provide information regarding blood collection instruments via a mobile device. An example method for blood collection instrument management includes providing a graphical representation of one or more blood collection instruments with a visual indication of a status for each instrument. The graphical representation is to visually convey information regarding each of the one or more blood collection instruments and is selectable by a user to provide additional information regarding each of the one or more blood collection instruments. The method includes facilitating access to troubleshoot and interact with the one or more blood collection instruments via the mobile device. The method includes dynamically updating the status for each instrument via communication between the mobile device and one or more blood collection facilities at which the one or more blood collection instruments are located.
摘要:
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 selected characteristic 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.
摘要:
A peristaltic pumping apparatus and associated method to 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.
摘要:
A system for interrogating non-homogeneous liquid samples to locate regions of interest within the samples, and to extract liquid from the regions of interest. The system of the invention is particularly well adapted for use in locating and in thoroughly removing liquid from regions of interest that include even extremely thin, film-like, horizontally extending layers of interest that typically are in the range of about 10 to 50 microns in thickness. The system utilizes a polarized beam of collimated laser light that is projected along a horizontal travel path, that is transmitted through a sample, and that is detected to enable characteristics of the transmitted light beam that have been affected by characteristics of the interrogated sample portions to be studied. By this arrangement, a centrifuged sample of liquid that differs in content at different height levels can be interrogated to locate levels within the sample where one or more layers of components of interest reside that are to be withdrawn from the sample. Withdrawal of liquid components from each such layer is effected by inserting a pipette into the sample to a level where the components reside, and by withdrawing the components through the pipette.
摘要:
A method is disclosed for resuspending a concentrated blood component collected in a single-use processing chamber that is mounted to a rotatable support of a centrifugal collection system. A resuspension solution is introduced to the single-use processing chamber constraining the concentrated blood component. The rotatable support with the single-use processing chamber mounted thereto is removed from the centrifugal collection system and mounted to a resuspension device. The device is then activated for a period of time sufficient to resuspend the concentrated blood component in the resuspension solution. In another aspect, the resuspension device is configured to impart a reciprocating arcuate motion to the support and its associated single-use processing chamber. A frequency of approximately 300 to 325 rpm over a period of time of approximately 1.5 to 2.5 minutes has been found effective for resuspending platelets. Reciprocation through an arc of less than 200° is provided.
摘要:
A membrane separation device is disclosed along with systems and methods employing the device in blood processing procedures. In one embodiment, a spinning membrane separator is provided in which at least two zones or regions are created in the gap between the membrane and the shell, such that mixing of the fluid between the two regions is inhibited by a radial rib associated with the membrane that decreases the gap between the membrane and the shell to define two fluid regions, the ridge isolating the fluid in the two regions to minimize mixing between the two. Automated systems and methods are disclosed for separating a unit of previously collected whole blood into components, such as concentrated red cells and plasma, for collecting red cells and plasma directly from a donor in a single pass, and for cell washing. Data management systems and methods and priming methods are also disclosed.
摘要:
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.
摘要:
A medical fluid processing device for processing blood or other fluids includes a plurality of hardware elements that perform specific functions. Different processing procedures are achieved by performing the specific functions in appropriately arranged sequences and combinations. A user accessible menu permits user selection of the desired processing procedure. A dual region, user accessible screen provides user interaction with the processing device.