摘要:
A method for separating a volume of a composite liquid into at least a first component and a second component is performed in a centrifuge (35, 36, 37, 38) cooperating with a separation bag (1) containing the volume of composite liquid. The separation bag is connected to at least a first component bag (2) and a second component bag (3). The separation bag (1) is spun so as to centrifuge the volume of composite liquid and cause the sedimentation of the at least first and second components. When the at least first and second components have sedimented, the first component is transferred at at least one first transfer flow rate into the first component bag (2). When the first component has been transferred into the first component bag, the second component is transferred into the second component bag (3) at at least one second transfer flow rate that is different from the at least one first transfer flow rate.
摘要:
A method for controlling a centrifuge blood component separation system for separating components of a blood product, the separation system comprising a centrifuge and a separation bag and at least one transfer bag. The method comprises selecting a nominal hematocrit value such that an actual hematocrit value is expected to be less than said nominal hematocrit; centrifuging a separation bag containing a volume of composite liquid so as to cause the sedimentation of at least a first component and a second component; transferring some of the first component to a first transfer bag; detecting time of passage of a red blood cell interface at a pre-selected location in the separation bag; and adjusting a predicted processing time based on the time of passage of the red blood cell interface.
摘要:
A centrifuge blood component separation system for separating components of a blood product, comprising a separation vessel; a first transfer bag; a second transfer bag with an outside edge generally congruent to an outside edge of the first transfer bag and further having a central collection area spaced away from the outside edge. The second transfer bag may have additional collection areas. A perforated seam between collection areas allows the second collection bag to be separated into a plurality of bags after collection of blood components. The system has a centrifuge apparatus comprising a rotor having a central compartment for receiving the transfer bags.
摘要:
A method and apparatus related to using a squeezing or transfer fluid to transfer fluid or components between bags in a centrifuge wherein the squeezing fluid can be reversed to reduce squeezing and such fluid an also be used to build up a over-pressure for rapid movement.
摘要:
An apparatus for separating a volume of composite liquid into at least a first component and a second component comprises a centrifuge having a rotor (32, 33, 34, 35). The rotor comprises a turntable (35) for supporting a separation bag (1) and a central compartment (34) for containing satellite bags connected to the separation bag (1). The central compartment is fitted with a support member (87) for supporting at least one satellite bag (2, 3) so that a liquid contained in the supported satellite bag (2, 3) drains from the supported satellite bag (2, 3) into the separation bag (1) under centrifugation forces when the rotor (32, 33, 34, 35) is set in rotation.
摘要:
A disposable blood separation set and a centrifugal blood processing system comprising a blood processing chamber adapted to be mounted on a rotor of a centrifuge; a frustro-conical cell separation chamber in fluid communication with the processing chamber, the cell separation chamber having an inlet, a primary outlet and a side tap outlet adjacent the inlet. A valve that is responsive to centrifugal force (a "gravity" valve) selects between the outlet and the side tap outlet. The gravity valve is mounted on the rotor. When the rotor spins at high speed, the gravity valve may open the primary outlet and close the side tap outlet. When the rotor spins at a lower speed, the gravity valve may open the side tap outlet and close the primary outlet.
摘要:
Method and apparatus for separating a volume of composite liquid into at least a first component and a second component including centrifuging a separation bag (1) containing a volume of composite liquid and a volume of gas so as to sediment at least a first component and a second component separation bag (1); displacing a volume of hydraulic fluid against the separation bag to cause a transfer of at least one fraction of the content of the separation bag (1) into at least one component bag (2, 3, 4, 5) connected to the separation bag (1); determining the volume of hydraulic fluid displaced and determining the volume of the composite liquid or the transferred components from the determined volume of displaced hydraulic fluid.
摘要:
An apparatus for separating a volume of composite liquid into at least a first component and a second component comprises a centrifuge having a rotor (32, 33, 34, 35). The rotor comprises a turntable (35) for supporting a separation bag (1) and a central compartment (34) for containing satellite bags connected to the separation bag (1). The central compartment is fitted with a support member (87) for supporting at least one satellite bag (2, 3) so that a liquid contained in the supported satellite bag (2, 3) drains from the supported satellite bag (2, 3) into the separation bag (1) under centrifugation forces when the rotor (32, 33, 34, 35) is set in rotation.
摘要:
A bag loading means (87) is for loading and unloading at least one satellite bag (2, 3, 4) into and from the central compartment (34) of a rotor (32, 33, 34, 35) of an apparatus for separating a composite liquid into at least two components. The bag loading means (87) comprises an upper part comprising securing means (92) for removably securing an upper portion of at least one satellite bag (2, 3, 4) to the bag loading means (87); a lower part comprising a receptacle (96) for containing a lower portion of at least one satellite bag (2, 3, 4); and an intermediate part connecting the upper part to the lower part and exposing an intermediate portion of a satellite bag (2, 3, 4) having an upper portion secured to the upper part of the loading means (87) and a lower portion inserted in the receptacle.