奈米工程與微系統研究所　書報討論

Seminar of Inst. NanoEngineering and MicroSystems

Speech I. Paul C.-P. Chao       

Department of Electrical Engineering      

National Chiao Tung University. Taiwan    

Professor (http://pchao.cn.nctu.edu.tw/ ) 

Title: A New Flexible Photoplethysmography (PPG) Sensor Patch for Stable, Continuous Blood Flow Volume and Pressures Measurement.

Abstract

A new flexible sensor patch capable of measuring continuously for stable blood-flow volume (BFV) and blood pressure (BP) is successfully designed and prototyped. With this patch, the measurement on BFV and BP is non-invasively, and cam be continuously collected over more than 24 hours, resulting in valuable long-time stable monitoring data for effective medical diagnosis. The long-time BVF measurements are particularly suited to assess quality of arteriovenous fistula in hemodialysis patients. Of particular interests is that BFV is nowadays in clinic practices evaluated using an ultrasound Doppler monitor, which is expensive, bulky, and can only be operated by well-trained medical personnel. The sensor patch developed by this study is a low-cost, small-sized, wearbale, and easy-to-use PPG sensor that is capable of continuous measurement of BFV and BP. New designs of front-end analog circuits, signal processing, and an intelligent neural network calibration method are employed to finally achieve high correlations of R2 = 0.88 for BFV and R2 = 0.85 for BP, as opposed to their gold standard counterpart monitors.

 Brief Biography

Paul C.-P. Chao received his Ph.D. degree from Michigan State University, USA, and then with Chrysler Corp in Auburn Hill, Detroit, USA before he joined National Chiao Tung University (NCTU), Taiwan. He is currently University Distinguished Professor of the electrical engineering department at NCTU. His research interests focus on sensors, actuators and their interface circuitry. Dr. Chao has published more than 270 peer-reviewed papers (books, journal papers, conferences, reports) and 38 patents.

15:30-17:20 on Feb. 25(Mon), 2019 at Room 108 of Eng. Building I

Host：Prof. J.Andrew Yeh jayeh@mx.nthu.edu.tw Ext:42912

Contact：Yu-Chen Lin(RA) s8317947@gmail.com