Extracorporeal blood processing methods and apparatus

Details Extracorporeal blood processing methods and apparatus Extracorporeal blood processing methods and apparatus

2007-01-30

2007-01-30

Zalukaeva, Tatyana (Department: 3761)

Chemical apparatus and process disinfecting, deodorizing, preser

Blood treating device for transfusible blood

C604S004010, C604S005010, C604S006100, C604S006110, C210S645000, C210S739000, C210S741000

Reexamination Certificate

active

10681035

ABSTRACT:
This invention provides a method for controlling a fluid separation system, preferably a blood apheresis system having a leukocyte reduction chamber. The method utilizes a three-level alarm system. A first-level alarm condition is triggered in response to a pressure drop in the system to less than or equal to a specified system pressure and pauses fluid flow in at least a portion of the system. A second-level alarm condition is triggered in response to a specified number of said pressure drops within a specified period and reduces the flow rate of the fluid in the system. The alarm conditions may also trigger a visible and/or audible alarm. These alarm levels permit flow through the leukocyte reduction chamber to continue when the pressure drop is caused by a non-serious, self-resolving or easily-correctable condition such as misalignment of system components.

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