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Related Experiment Videos

Drawbacks of pushovers.

G T Bell1, J K Ralph

  • 1Department of Anaesthetics, Ministry of Defence Hospital Unit, Frimley Park Hospital, Portsmouth Road, Frimley GU16 5UJ, UK.

Anaesthesia
|September 30, 2000
PubMed
Summary
This summary is machine-generated.

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The Oxford Miniature Vaporiser showed variable performance with different ventilators. When used with the Laerdal bag in a pushover setup, it delivered a higher anesthetic gas output than intended.

Area of Science:

  • Anesthesiology
  • Medical Device Engineering

Background:

  • Military anaesthetists are increasingly using the Oxford Miniature Vaporiser with the Triservice anaesthetic apparatus.
  • The vaporiser's performance in pushover and drawover configurations was previously found to be identical with the Cape TC 50 ventilator.

Purpose of the Study:

  • To evaluate the performance of the Oxford Miniature Vaporiser with various ventilators in a pushover configuration.
  • To identify potential discrepancies in anesthetic gas delivery.

Main Methods:

  • The Oxford Miniature Vaporiser was tested with three different ventilators.
  • Performance was assessed in a pushover configuration, specifically noting output with the Laerdal bag at normal minute volumes.

Main Results:

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  • Variable performance was observed across the tested ventilators.
  • A higher than set anesthetic gas output was delivered when the vaporiser was used in the pushover configuration with the Laerdal bag.

Conclusions:

  • The Oxford Miniature Vaporiser's performance is not consistent across all ventilator types.
  • Careful consideration and testing are required when using this vaporiser with specific ventilators, particularly the Laerdal bag in a pushover setup, due to potential for inaccurate anesthetic delivery.