PLASMA FLOW RATES FOR THERAPEUTIC EXCHANGE PROCEDURES

摘要

Systems and methods are provided for improving the flow rate of plasma being removed from a blood separation chamber during a blood separation procedure. The system includes a blood separation chamber in which plasma is separated from cellular blood components and an outlet line for removing the separated plasma from the blood separation chamber. A primary optical sensor assembly is associated with the blood separation chamber to directly monitor the interior of the blood separation chamber. A secondary optical sensor assembly is associated with the outlet line to monitor the separated plasma in the outlet line, with each optical sensor assembly checking for the presence of cellular components in the separated plasma. If the primary optical sensor assembly detects such a condition while the secondary optical sensor assembly does not, then a controller may take steps to resolve the conflict and continue the procedure.

主权项

1. A blood separation system, comprising:
a blood separation chamber configured to separate at least one cellular component from plasma; an outlet line associated with the blood separation chamber for removing at least a portion of the plasma from the blood separation chamber; a first optical sensor assembly configured to directly monitor the interior of the blood separation chamber and generate an output upon detecting a condition indicative of the presence of said at least one cellular component in the outlet line; a second optical sensor assembly configured to monitor the contents of the outlet line for the presence of said at least one cellular component in the outlet line; and a controller programmed to receive said output from the first optical sensor and initiate a countermeasure to prevent an additional amount of said at least one cellular component from entering the outlet line and/or remove said at least one cellular component from the outlet line, wherein the controller is further programmed to recognize a conflict between the first and second optical sensor assemblies in which the first optical sensor assembly generates said output while the second optical sensor assembly does not detect the presence of said at least one cellular component in the outlet line and, in response to recognizing said conflict, disable the ability of the first optical sensor assembly to generate said output or refuse to initiate said countermeasure upon receiving said output.