| Title |
Design of Noninvasive Arterial Blood Pressure Measurement System by Using Double-Cuffs Oscillometric Method |
| Authors |
이필재(Lee, Pil-Jae) ; 이영재(Lee, Young-Jae) ; 김동준(Kim, Dong-Jun) ; 이재호(Lee, Jae-Ho) ; 임민규(Lim, Min-Gyu) ; 이정환(Lee, Jeong-Whan) |
| DOI |
https://doi.org/10.5370/KIEE.2012.61.6.885 |
| Keywords |
Systolic BP ; Diastolic BP ; Mean arterial pressure ; Small cuff ; Oscillometric method |
| Abstract |
In this study, a new blood pressure measuring system was proposed and implemented. An additional small-cuff was placed on the center of a inner cuff to measure morphological signals and new oscillometric ratio. The proposed BP-measuring system is composed of an external cuff, an inner cuff and a small-cuff. Oscillation signal from small-cuff is interpolated with 7th-order fitting polynomials and SBP, DBP ratio were 22.2% and 87.7%. Experimental data were gathered from 20 volunteers (25pm4 years) and arterial blood pressure values were compared with auscultation, sphygmomanometers, small-cuff and inner-cuff. As a result, the difference in systolic BP between auscultation and the small-cuff was 1.93(pm1.28) mmHg, and the inner-cuff was 4.53(pm4.39) mmHg, and sphygmomanometer was 6.68(pm3.99) mmHg, and the corresponding difference in diastolic BP was 2.50(pm2.04) mmHg, 3.50(pm3.19) mmHg, 7.35(pm5.62), respectively. |