A MICROCONTROLLER-BASED DEVICE FOR MONITORING BLOOD PRESSURE IN THE FIELD

Authors
  1. Dyck, W.
  2. Collette, M.
Corporate Authors
Defence Research Establishment Ottawa, Ottawa ONT (CAN)
Abstract
Monitoring of the vital signs of casualties in the field is an ongoing concern of the Canadian Forces Medical System. A vital signs monitor has been developed previously, which would measure heart rate and body temperature continuously and concurrently. In order to enhance the capabilities of the device, it was decided to investigate the feasibility of adding the capability of monitoring blood pressure. Using the oscillographic method of measuring cuff pressures, and the Erlanger procedure for determining systolic and diastolic pressures, several algorithms were tested for determining blood pressure. The design parameters were limited to the unused resources remaining in the existing monitor. A method of digitally sampling pressure pulses, using a two dimensional filter for determining pulse validity, and extablishing systolic and diastolic blood pressure, is described.
Keywords
Vital signs;Microcontrollers;Oscillography
Report Number
DREO-TN-93-29 — Technical Note
Date of publication
01 Nov 1993
Number of Pages
27
DSTKIM No
94-03442
CANDIS No
142874
Format(s):
Hardcopy;Originator's fiche received by DSIS

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