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Updated: May 1, 2026

A Multi-Parametric Islet Perifusion System within a Microfluidic Perifusion Device
Published on: January 26, 2010
The single-port concept: combining optical glucose measurement with insulin infusion
Martin Hajnsek1, Barbara Nacht, Stefan Sax
1HEALTH - Institute for Biomedicine and Health Sciences, Joanneum Research, Graz, Austria.
Abstract:
The aim of this study was to develop a single-port system that combines glucose monitoring and insulin infusion. In a preclinical proof-of-concept trial, the performance of the glucose measurement at the site of insulin infusion was assessed. Glucose levels were clamped from 40 to 250 mg/dL by intravenous glucose infusion and subcutaneous insulin infusion via the glucose sensor. Sensor-glucose values correlated well with reference blood-glucose values, despite infusion at the site of glucose measurement. The average median ARE value was 21.6 ± 5.7 % for sensors used for insulin infusion, 18.1 ± 5.8 % for sensors used for NaCl infusion and 19.2 ± 7.9 % for sensors without infusion. These preclinical in vivo results demonstrate that single-port glucose monitoring is feasible at the site of insulin infusion.
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