Inventors:
George Lopez Subrebost - Swissvale PA, US
Alan J. Rosenbloom - Pittsburgh PA, US
Heer Gandhi - Pittsburgh PA, US
Assignee:
Carnegie Mellon University - Pittsburgh PA
International Classification:
A61B 5/1459, A61B 6/00, A61B 5/145, A61B 5/1491
US Classification:
600316, 600366, 600317, 600407, 600345
Abstract:
Microdialysis systems and methods that enable self-diagnostic functions for microdialysis, including continuous monitoring of diffusion, convection, and osmosis, as well as providing intelligent flow rate control, to mitigate variability in analyte recovery. The microdialysis system measures real-time tracer concentration levels in the dialysate and/or real time flow rates of the dialysate. A control circuit may compute the real-time tracer concentration levels in the dialysate and/or real-time flow rates of the dialysate based on real time tracer concentration data from an in-line tracer concentration meter and real-time flow rate data from an in-line flow rate meter. Analyte concentration data for the dialysate may also be measured using an analyte concentration meter. The control circuit may compute a corrected analyte concentration for the dialysate based on the analyte concentration data, the tracer concentration data, and the flow rate data in various embodiments.