Volumetric fluid balance control for extracorporeal blood...

Details Volumetric fluid balance control for extracorporeal blood... Volumetric fluid balance control for extracorporeal blood...

2006-09-26

2006-09-26

Kim, John S. (Department: 1723)

Liquid purification or separation

Automatic control

C210S090000, C210S097000, C210S101000, C604S065000, C604S067000, C137S100000

Reexamination Certificate

active

07112273

ABSTRACT:
A method and device for adjusting a volumetric flow balancing system for an extracorporeal blood treatment system receives a pressure signal and calculates a compensation factor that is used to adjust the relative flow rates of the volumetrically balanced fluids. For example, in a hemofiltration system, the flow of waste and and replacement fluid may be balanced volumetrically. Ultrafiltrate may be pumped in a bypass circuit in such a system. The rate of ultrafiltrate flow may be adjusted by the compensation signal. The compensation signal may be empirically derived.

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