Accession Number:

AD0643687

Title:

A QUANTITATIVE IMPEDANCE PNEUMOGRAPH

Descriptive Note:

Corporate Author:

NAVAL AIR DEVELOPMENT CENTER WARMINSTERPA AEROSPACE MEDICAL RESEARCH DEPT

Report Date:

1966-11-10

Pagination or Media Count:

30.0

Abstract:

The report describes an impedance pneumograph capable of measuring quantitatively respiratory volumes. Features of this system include the use of a higher frequency 300 KHz excitation voltage than is normally used in impedance pneumography and the use of pasteless electrodes which are insulated from the subject by a layer of polyethylene, thus forming a capacitive coupling of the electrodes to the subject and eliminating the problems associated with skin-to-electrode impedance changes. A near perfect empiric correlation was found to exist between the transthoracic impedance measured by this device and pulmonary volume.

Subject Categories:

  • Medical Facilities, Equipment and Supplies
  • Telemetry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE