Human Decompression Trial With 1.3 ATA Oxygen in Helium

Abstract

The Naval Medical Research Institute (NMRI) was tasked to develop helium-oxygen decompression tables for a proposed closed circuit breathing apparatus which Will deliver a constant oxygen partial pressure of 1.3 atmospheres (ATA). It was anticipated that the higher P02, compared to the currently used 0.7 ATA, would significantly reduce the required decompression times. This report describes the human dive trial that was conducted to explore the effect of the higher P02 in reducing decompression time. A sequential dive trial was designed in which the outcome of dives at each step dictated the selection of a profile for the next test. Excessive Decompression Sickness (DCS) outcome resulted in selection of a safer next profile. Conversely, low DCS outcome resulted in selection of a riskier profile (added bottom time or less

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1998
Accession Number
ADA381290

Entities

Organizations

  • Naval Medical Research Center

Tags

DTIC Thesaurus Topics

  • Barotrauma
  • Biomedical Research
  • Breathing Apparatus
  • Decompression
  • Decompression Sickness
  • Ear
  • Joint Diseases
  • Joints (Anatomy)
  • Medical Personnel
  • Monte Carlo Method
  • Navy
  • Pain
  • Partial Pressure
  • Probabilistic Models
  • Respiration
  • Respiration Disorders
  • Upper Extremity

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