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Research ArticleOriginal Research

Battery Performance of 4 Intensive Care Ventilator Models

Thomas C Blakeman, Bryce RH Robinson and Richard D Branson
Respiratory Care March 2010, 55 (3) 317-321;
Thomas C Blakeman
Division of Trauma and Critical Care, Department of Surgery, University of Cincinnati Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio.
RRT
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  • For correspondence: [email protected]
Bryce RH Robinson
Division of Trauma and Critical Care, Department of Surgery, University of Cincinnati Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio.
MD
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Richard D Branson
Division of Trauma and Critical Care, Department of Surgery, University of Cincinnati Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio.
MSc RRT FAARC
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Abstract

BACKGROUND: Hospital electrical power failure represents an important challenge in the intensive care unit. Despite the presence of backup generators, total electrical power failure may still occur. Life-support equipment should have a reliable internal battery to ensure patient safety. We tested the duration of operation of the internal battery of 4 intensive care ventilators.

METHODS: In our laboratory we evaluated one each of 4 ventilator models available in our facility (Evita XL, Puritan Bennett 840, Avea, and Servo 300), with volume-control and pressure-control ventilation, and with positive end-expiratory pressure (PEEP) of zero and 20 cm H2O. We then randomly selected and tested 6 Evita XL and 4 Servo 300 ventilators from our inventory to determine the variability of internal battery duration among ventilators of the same model. The ventilator settings were identical to the previous tests, other than fraction of inspired oxygen, which was set at 0.6, and PEEP was 5 cm H2O.

RESULTS: The battery-duration range of the tested ventilators was 20.5−170.5 min, and the mean ± SD battery duration was 80.4 ± 49.3 min. Changes in breath type and PEEP did not significantly impact battery duration. Among the ventilators of the same model, the battery-duration range was 5–69 min and the mean ± SD battery duration was 28.9 ± 21.4 min. Use of a compressor significantly shortened battery duration. There was no correlation between battery duration and battery age (r = −0.263).

CONCLUSIONS: The duration of ventilator operation on internal battery ranged widely among the tested devices. Clinicians need to be aware of these differences in the event of power failure.

  • ventilator
  • power failure
  • backup battery

Footnotes

  • Correspondence: Thomas C Blakeman RRT, Division of Trauma and Critical Care, Department of Surgery, University of Cincinnati Medical Center, 231 Albert Sabin Way, ML 0558, Cincinnati OH 45267-0558. E-mail: thomas.blakeman{at}uc.edu.
  • Mr Blakeman and Dr Robinson have disclosed no conflicts of interest. Mr Branson has disclosed relationships with Covidien, Cardinal, Newport, Dräger, and Sequal.

  • Mr Blakeman presented a version of this paper at the 54th International Respiratory Congress of the American Association for Respiratory Care, held December 13–16, 2008, in Anaheim, California.

  • Copyright © 2010 by Daedalus Enterprises Inc.
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Respiratory Care: 55 (3)
Respiratory Care
Vol. 55, Issue 3
1 Mar 2010
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Battery Performance of 4 Intensive Care Ventilator Models
Thomas C Blakeman, Bryce RH Robinson, Richard D Branson
Respiratory Care Mar 2010, 55 (3) 317-321;

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Battery Performance of 4 Intensive Care Ventilator Models
Thomas C Blakeman, Bryce RH Robinson, Richard D Branson
Respiratory Care Mar 2010, 55 (3) 317-321;
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