Wearable Soft Microfluidic Pressure Sensor Using 3D-Printed Mold for Health Monitoring
- Resource Type
- Conference
- Authors
- Kim, Kyuyoung; Choi, Jungrak; Jeong, Yongrok; Kim, Minseong; Park, Jaeho; Oh, Yongsuk; Park, Inkyu
- Source
- 2019 IEEE 32nd International Conference on Micro Electro Mechanical Systems (MEMS) Micro Electro Mechanical Systems (MEMS), 2019 IEEE 32nd International Conference on. :853-855 Jan, 2019
- Subject
- Bioengineering
Signal Processing and Analysis
Pressure sensors
Biomedical monitoring
Monitoring
Sensitivity
Microchannels
Microfluidics
Liquids
- Language
- ISSN
- 2160-1968
In this research, we introduce a wearable soft microfluidic pressure sensor using 3D-printed microbumps and liquid metal and its potential applications in health monitoring. Our pressure sensor fabricated with elastomer and liquid metal which provide stretchability has an enhanced sensitivity (0.3 kPa −1 @100kPa) compared to other reported microfluidic pressure sensors [1] and a good recovery characteristic in pressure range to 100 kPa. It has an enough sensitivity to be applied in pressure monitoring applications. Blood pressure could be estimated through monitoring pulse rate and electrocardiogram (ECG) data simultaneously. Also, human body pressure distribution was monitored using multiple pressure sensors attached on the clothes when lying on the bed. Biosignals and human body pressure data achieved through the proposed pressure sensor would be applied to early diagnosis and prevention of diseases such as diabetes and bedsores.