Extracorporeal blood processing methods and apparatus
First Claim
1. A blood primable blood processing channel assembly for an apheresis system comprising a centrifuge rotor, said channel assembly comprising:
- a channel housing interconnectable with said centrifuge rotor and comprising a blood processing channel, said channel comprising a first cell separation stage and wherein a remainder of said channel comprises at least one other stage, said channel further comprising a blood inlet and a red blood cell outlet fluidly interconnected with said first cell separation stage, wherein blood provided to said channel through said blood inlet has a first hematocrit and a fluid containing red blood cells removed from said channel through said red blood cell outlet has a second hematocrit, wherein a ratio of a volume of said remainder of said channel to a volume of said first cell separation stage is less than one-half of one less than a ratio of the second hematocrit to the first hematocrit.
8 Assignments
0 Petitions
Accused Products
Abstract
An extracorpeal blood processing system is disclosed which includes a variety of novel components and which may be operated in accordance with a variety of novel methodologies. For instance, the system includes a graphical operator interface which directs the operator through various aspects of the apheresis procedure. Moreover, the system also includes a variety of features relating to loading a blood processing vessel into a blood processing channel and removing the same after completion of the procedure. Furthermore, the system also includes a variety of features relating to utilizing a blood priming of at least portions of the apheresis system in preparation for the procedure. In addition, the system includes a variety of features enhancing the performance of the apheresis system, including the interrelationship between the blood processing vessel and the blood processing vessel and the utilization of high packing factors for the procedure.
-
Citations
14 Claims
-
1. A blood primable blood processing channel assembly for an apheresis system comprising a centrifuge rotor, said channel assembly comprising:
a channel housing interconnectable with said centrifuge rotor and comprising a blood processing channel, said channel comprising a first cell separation stage and wherein a remainder of said channel comprises at least one other stage, said channel further comprising a blood inlet and a red blood cell outlet fluidly interconnected with said first cell separation stage, wherein blood provided to said channel through said blood inlet has a first hematocrit and a fluid containing red blood cells removed from said channel through said red blood cell outlet has a second hematocrit, wherein a ratio of a volume of said remainder of said channel to a volume of said first cell separation stage is less than one-half of one less than a ratio of the second hematocrit to the first hematocrit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
Specification