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Blood pressure measurement using finger cuff

J Lee1, E Choi, H Jeong

  • 1Samsung Advanced Institute of Technology, Mt. 14-1, Nongseo-Ri, Giheung-Eup, Yongin-Si, Gyeonggi-Do, Republic of Korea 449-712 (phone: 81-31-280-6525; fax: 82-31-280-9208;

Conference Proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference
|February 7, 2007
PubMed

Insights

This study introduces an improved algorithm and calibration method for accurate blood pressure measurement in the finger artery, enhancing usability for hypertension patients. Clinical trials show the system achieves clinically acceptable accuracy under 5mmHg.

Area of Science:

  • Biomedical Engineering
  • Cardiovascular Technology
  • Medical Devices

Background:

  • Finger artery blood pressure measurement offers convenience but suffers from low accuracy.
  • Existing methods are often unreliable for hypertension patients due to variability.
  • Technological advancements are needed to improve accuracy and clinical utility.

Purpose of the Study:

  • To develop and validate a novel algorithm for accurate systolic and diastolic blood pressure measurement in the finger artery.
  • To introduce a calibration method to minimize errors caused by variations in finger circumference.
  • To assess the clinical feasibility and accuracy of the proposed system according to AAMI SP10 standards.

Main Methods:

  • Development of a new measurement algorithm specifically for finger artery blood pressure.
  • Implementation of a subject-specific calibration technique to account for finger circumference differences.
  • Testing the system on 90 subjects (20-49 years old, 55 male, 35 female) following AAMI SP10 guidelines.

Main Results:

  • The developed system demonstrated a mean difference of ±4.7 mmHg for systolic pressure.
  • The system achieved a mean difference of ±4.2 mmHg for diastolic pressure.
  • Results indicate the method is clinically acceptable, falling within the ±5 mmHg threshold.

Conclusions:

  • The proposed algorithm and calibration method significantly improve the accuracy of finger artery blood pressure measurement.
  • The system's performance meets clinical acceptability standards, offering a viable alternative for patient monitoring.
  • This advancement holds potential for more convenient and reliable hypertension management.

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