Pressure Sensed Non-Invasively Directly on the Extra Corporeal Bloodline Tube

Abstract

To clinically measure blood pressure at extra corporeal bloodlines involves a hazard due to the infection risk and a risk for thrombosis formation. The aim was to design a non-invasive pressure sensor, measuring directly on a tube section. A modified tube cross-section was used to improve sensitivity. Using the developed sensing principle, a consistent relation (r=0.999) was obtained between pressure and output signal. The output was stable and an acceptable drift within the temperature-range. The method shows great promise for applications in monitoring of the dialysis process.

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Document Details

Document Type
Technical Report
Publication Date
Oct 25, 2001
Accession Number
ADA410477

Entities

People

  • D. Loyd
  • P. Ask
  • R. Andersson

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Abstracts
  • Biomedical Engineering
  • Blood
  • Cardiovascular Physiological Phenomena
  • Cardiovascular System
  • Combinatorial Analysis
  • Dialysis
  • Engineering
  • Factor Analysis
  • Materials
  • Measurement
  • Mechanical Engineering
  • Pressure Gradients
  • Pressure Measurement
  • Pressure Transducers
  • Thickness
  • Transducers

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