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This paper aims at validating the conformity of linear peristaltic volumetric infusion pump (LPVIP) using as reference a flow analyzer, model IN-300. The IN-300 model has an operating range of 1 ml/h at 1000 ml/h and a resolution of 0.1 ml/h. The standard IEC 60601-2-24 determines that an electronic balance with a resolution of 0.0001 g should be used during pump calibration. Therefore, the technical implementation of a flow analyzer for calibration and periodic verification of LPVIP at Hospital was evaluated. Tests were performed considering tem LPVIP and three values of infusion rates (25 ml/h, 50 ml/h and 100 ml/h). Several metrological parameters were evaluated (bias, repeatability, uncertainty and maximum error). The measurement uncertainty was assessed according to the recommendations of the JCGM 100. The technical viability of the flow analyzer use for calibration and periodic verification of LPVIP was demonstrated. The obtained results showed that only 20 % of the evaluated infusion pumps exhibited maximum errors within the manufacturer criterion for the three evaluated flow rates.

Performance evaluation of linear peristaltic volumetric infusion pump using a flow analyzer