DESIGN AND DEVELOPMENT OF AN AUTOMATIC INDIRECT BLOOD PRESSURE MONITORING DEVICE

Abstract

The design of an automatic electronic blood pressure recording device is described. This device, which applied pressure only slightly higher than the systolic pressure of the subject, is programed to record the Korotkoff sounds while the occlusion cuff is being inflated. The system may be programed to monitor blood pressure at any predetermined rate from intervals of one minute to several minutes, or it may be initiated manually. Proper design of circuitry for maximum signal-to-noise ratio required a knowledge of the frequency range of the complex Korotkoff sound waveform. This information was obtained by recording the K sounds from four subjects and analyzing the waveforms for energy content vs. frequency. These data are also presented.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1966
Accession Number
AD0641017

Entities

People

  • Jack B. Johnson
  • James E. Allred

Organizations

  • United States Air Force School of Aerospace Medicine

Tags

Communities of Interest

  • Biomedical
  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Aerospace Medicine
  • Air Force
  • Air Force Facilities
  • Amplifiers
  • Anechoic Chambers
  • Cardiovascular Physiological Phenomena
  • Classification
  • Detectors
  • Frequency
  • Measurement
  • Microphones
  • Pressure Measurement
  • Pressure Transducers
  • Security
  • Timing Devices
  • Transducers

Readers

  • Cardiovascular Physiology
  • Electronics Engineering
  • Systems Analysis and Design

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems