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Related Experiment Videos

A computerized system to evaluate volumetric infusion pumps.

S Kobayashi1, T Ogata

  • 1Medical Engineering Section, Seishin-Igaku Institute, Tokyo, Japan.

Biomedical Instrumentation & Technology
|November 1, 1992
PubMed
Summary
This summary is machine-generated.

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A new computerized system accurately assesses infusion pump performance by measuring delivered fluid volume and pressure. This technology reveals significant performance variations among pumps, aiding in quality evaluation.

Area of Science:

  • Biomedical Engineering
  • Medical Device Technology

Background:

  • Infusion pumps are critical for accurate drug delivery.
  • Evaluating infusion pump performance is essential for patient safety and device efficacy.
  • Conventional methods for assessing gravimetric performance can be time-consuming and less precise.

Purpose of the Study:

  • To develop and validate a computerized system for evaluating infusion pump performance characteristics.
  • To assess the accuracy and reliability of a novel system using inductance weight and pressure sensors.
  • To identify performance variations among different types of volumetric infusion pumps.

Main Methods:

  • A computerized system was designed to monitor fluid delivery using an inductance weight sensor and a strain-gauge pressure sensor.

Related Experiment Videos

  • The system recorded weight changes in a collection vessel and pressure at the needle over a defined sampling time.
  • Calculations were performed to determine changes in pressure, flow rate, and fluid volume delivered by infusion pumps.

    • Main Results:

    • The system was tested on five volumetric infusion pumps under various conditions (solutions, needle gauges, flow rates).
    • Significant variations in infusion pump performance were observed across different pumps and test parameters.
    • The inductance weight sensor demonstrated effectiveness for gravimetric performance evaluation, potentially surpassing traditional analytical balances.

    Conclusions:

    • The developed computerized system provides a robust method for evaluating infusion pump performance.
    • This system can identify critical performance discrepancies, aiding in quality control and device development.
    • The findings suggest the system's utility for assessing both existing and newly developed infusion pumps.