Title :
A Novel Sphygmography Based on Vascular Geometry and Arterial Model
Author :
Shing-Hong Liu ; Tyan, Chu-Chang ; Chen, Jian-Jung ; Wang, Jia-Jung
Author_Institution :
Yuanpei Univ., Hsinchu
Abstract :
Previous research on the non-invasive measurement of radial pulse waveform had no standardized quantitative and qualitative procedures. The aim of this study was to propose a new non-invasive measuring apparatus that had a three-axis sphygmography and a standard positioning procedure for detecting the optimal measure site and measuring an accurate pulse waveform. The artery vessel can be viewed as a cylinder, so, during measurement, if the sensor was not placed right at the centre but at an angle, the measured waveform would be distorted. Also, the blood vessel is made of elastic material. Its compliance changes with transmural pressure. When transmural pressure is equal to zero, compliance is at its maximum. The strain gauge and pizeoresistor was used to measure the radial arterial diameter change and pulse waveform, respectively.
Keywords :
biomedical equipment; biomedical measurement; blood vessels; diameter measurement; piezoresistive devices; strain gauges; arterial model; blood vessel; noninvasive radial pulse waveform measurement; pizeoresistor; radial arterial diameter measurement; strain gauge; three-axis sphygmography; transmural pressure; vascular geometry; Arteries; Blood vessels; Distortion measurement; Geometry; Goniometers; Measurement standards; Position measurement; Pulse measurements; Solid modeling; Strain measurement; Pulse Waveform; Sphygmography;
Conference_Titel :
Information Technology Applications in Biomedicine, 2007. ITAB 2007. 6th International Special Topic Conference on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-1867-1
Electronic_ISBN :
978-1-4244-1868-8
DOI :
10.1109/ITAB.2007.4407384
