摘要:
The invention relates generally to methods of monitoring and controlling the processing of blood and blood samples, particularly the separation of blood and blood samples into its components. In one aspect, the invention relates to optical methods, devices and device components for measuring two-dimensional distributions of transmitted light intensities, scattered light intensities or both from a separation chamber of a density centrifuge. In embodiment, two-dimensional distributions of transmitted light intensities, scattered light intensities or both measured by the methods of the present invention comprise images of a separation chamber or component thereof, such as an optical cell of a separation chamber. In another aspect, the present invention relates to multifunctional monitoring and control systems for blood processing, particularly blood processing via density centrifugation. Feedback control systems are provided wherein two-dimensional distributions of transmitted light intensities, scattered light intensities or both are measured, processed in real time and are used as the basis of output signals for controlling blood processing. In another aspect, optical cells and methods of using optical cells for monitoring and control blood processing are provided.
摘要:
An extracorporeal blood processing system having a centrifugal rotor, a control system, a plurality of peristaltic pumps, and a removable tubing circuit wherein blood components can be processed. A pump-balancing process, implemented by the control system, causes selected pumps to fill and empty a reservoir in the tubing circuit. Ratios of displaced volume per pump revolution or other pumping action can be used by the control system to increase the effectiveness and efficiency of the donation process. The pump-balancing process may be performed during priming or set-up of the blood processing system or during an actual donation.
摘要:
A dioramic apparatus includes a vessel having an inferior portion and a superior portion. The vessel includes a shell and defines an interior space. The interior space is partially filled by a liquid medium. At least one dioramic scene is disposed in the interior space. A reservoir is in fluid communication with the interior space. The reservoir includes a flow plate defining at least one liquid intake and at least one liquid output port. The at least one liquid intake is configured and arranged for receiving at least a portion of the liquid medium from the interior space when the dioramic apparatus is at least partially inverted. The at least one liquid output port is configured and arranged to output at least a portion of the liquid medium from the reservoir when the vessel is placed in an upright position.
摘要:
A dioramic apparatus includes a vessel having an inferior portion and a superior portion. The vessel includes a shell and defines an interior space. The interior space is partially filled by a liquid medium. At least one dioramic scene is disposed in the interior space. A reservoir is in fluid communication with the interior space. The reservoir includes a flow plate defining at least one liquid intake and at least one liquid output port. The at least one liquid intake is configured and arranged for receiving at least a portion of the liquid medium from the interior space when the dioramic apparatus is at least partially inverted. The at least one liquid output port is configured and arranged to output at least a portion of the liquid medium from the reservoir when the vessel is placed in an upright position.
摘要:
A dioramic apparatus includes a vessel having an inferior portion and a superior portion. The vessel includes a shell and defines an interior space. The interior space is partially filled by a liquid medium. At least one dioramic scene is disposed in the interior space. A reservoir is in fluid communication with the interior space. The reservoir includes a flow plate defining at least one liquid intake and at least one liquid output port. The at least one liquid intake is configured and arranged for receiving at least a portion of the liquid medium from the interior space when the dioramic apparatus is at least partially inverted. The at least one liquid output port is configured and arranged to output at least a portion of the liquid medium from the reservoir when the vessel is placed in an upright position.
摘要:
A dioramic apparatus includes a vessel having an inferior portion and a superior portion. The vessel includes a shell and defines an interior space. The interior space is partially filled by a liquid medium. At least one dioramic scene is disposed in the interior space. A reservoir is in fluid communication with the interior space. The reservoir includes a flow plate defining at least one liquid intake and at least one liquid output port. The at least one liquid intake is configured and arranged for receiving at least a portion of the liquid medium from the interior space when the dioramic apparatus is at least partially inverted. The at least one liquid output port is configured and arranged to output at least a portion of the liquid medium from the reservoir when the vessel is placed in an upright position.
摘要:
A bag assembly for the separation of a composite liquid into at least two components, comprises a set of bags and a bag-assembling device for assembling the set of bags. The set of bags comprises a separation bag connected by a product tube to at least one product bag. The bag-assembling device comprises a support member; a mounting means, connected to the support member, for removably mounting the bag-assembling device in a rotor of a centrifuge having a central cavity for containing the product bag; and a first securing means connected to the support member for releasably securing the product bag to the support member. The mounting means and the first securing means are so arranged that the product bag occupies a determined position in the central cavity of a rotor when the bag-assembling device in mounted therein.