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Disposable infusion pumps.

Elena A Skryabina1, Teresa S Dunn

  • 1Pump Evaluation Laboratory, Bath Institute of Medical Engineering, University of Bath, Wolfson Centre, Royal United Hospital, Combe Park, Bath, United Kingdom. adseas@bath.ac.uk

American Journal of Health-System Pharmacy : AJHP : Official Journal of the American Society of Health-System Pharmacists
|June 23, 2006
PubMed
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Nonelectric disposable infusion pumps offer portability and simplicity for drug delivery, particularly for analgesia. Understanding their mechanical principles and limitations is key to optimizing patient care.

Area of Science:

  • Medical Devices
  • Biomedical Engineering
  • Pharmacology

Background:

  • Nonelectric disposable infusion pumps are widely used for drug administration.
  • These devices operate on a physical principle of mechanical restriction to control fluid flow speed.

Purpose of the Study:

  • To review the properties, performance, and applications of nonelectric disposable infusion pumps.
  • To compare their characteristics with electric infusion pumps.

Main Methods:

  • Review of existing literature and data on nonelectric disposable infusion pumps.
  • Analysis of the physical principles governing their operation.
  • Evaluation of factors affecting flow rate accuracy.
  • Assessment of various applications and associated advantages/disadvantages.

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Main Results:

  • Nonelectric pumps generate 250-600 mm Hg pressure, compared to 5-1200 mm Hg for electric pumps.
  • Types include elastomeric, positive-pressure, negative-pressure, and patient-controlled analgesia (PCA) pumps.
  • Flow rate accuracy is influenced by temperature, viscosity, pressure, and filling.
  • Applications span home care, various analgesia methods, and pediatrics.

Conclusions:

  • Disposable infusion pumps offer advantages like portability, simplicity, and disposability, especially for analgesia.
  • Limitations include potential inaccuracies, fixed volumes, and lack of advanced features.
  • Understanding their characteristics is crucial for optimizing patient care.