THE EFFECTS AND CHARACTERISTICS OF INCREASED RESPIRATORY DEAD SPACE IN DOGS

Abstract

Artificial breathing apparatus such as oxygen masks involves added external respiratory dead space. In dogs with permanent tracheostomies, chronic increase in dead space has been maintained with lengths of 0.75-inch interior diameter vinyl plastic tubing. A dead space of 2030 cc./kg. is not tolerated for more than hours. The amount of mixing and air streaming within this tubing and in tubing of 0.5-inch interior diameter and 1.5-inch interior diameter was determined. There was very little mixing in the two smaller tubes but, in the large one, the amount of mixing was significant. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1960
Accession Number
AD0258788

Entities

People

  • Richard M. Peters
  • Thomas B. Barnett

Organizations

  • University of North Carolina at Chapel Hill

Tags

DTIC Thesaurus Topics

  • Biological Sciences
  • Biotechnology
  • Breathing Apparatus
  • Breathing Masks
  • Determinants (Mathematics)
  • Diameters
  • Life Support Systems
  • Mathematics
  • Oxygen Masks
  • Respiration
  • Respiratory Physiological Phenomena

Readers

  • Cardiovascular Physiology
  • Electrical Engineering
  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster
  • Space - Satellites