TY - GEN
T1 - Polymer-based cardiovascular shear stress sensors
AU - Yu, Hongyu
AU - Ai, Lisong
AU - Rouhanizadeh, Mahsa
AU - Hamilton, Ryan
AU - Hwang, Juliana
AU - Meng, Ellis
AU - Kim, Eun Sok
AU - Hsiai, Tzung K.
PY - 2007
Y1 - 2007
N2 - This paper describes a polymer-based cardiovascular shear stress sensor built on catheter for atherosis diagnosis. This flexible sensor detects small temperature perturbation as fluid past the sensing elements leading to changes in the resistance, from which shear stress is inferred. MicroElectroMechanical System (MEMS) surface manufacture technology is utilized for fabrication of the devices with biocompatible materials, such as parylene C, Titanium (Ti) and Platinum (Pt). The temperature coefficient of resistance (TCR) of the sensor is 0.11%°C. When a catheter-based sensor is positioned near the wall of the rabbit aorta, our 3-D computational fluid dynamic model demonstrates that flow disturbance is negligible under steady state in a straight segment. The sensor has been packaged with a catheter and will be deployed into the aorta of NZW rabbits for realtime shear stress measurement
AB - This paper describes a polymer-based cardiovascular shear stress sensor built on catheter for atherosis diagnosis. This flexible sensor detects small temperature perturbation as fluid past the sensing elements leading to changes in the resistance, from which shear stress is inferred. MicroElectroMechanical System (MEMS) surface manufacture technology is utilized for fabrication of the devices with biocompatible materials, such as parylene C, Titanium (Ti) and Platinum (Pt). The temperature coefficient of resistance (TCR) of the sensor is 0.11%°C. When a catheter-based sensor is positioned near the wall of the rabbit aorta, our 3-D computational fluid dynamic model demonstrates that flow disturbance is negligible under steady state in a straight segment. The sensor has been packaged with a catheter and will be deployed into the aorta of NZW rabbits for realtime shear stress measurement
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U2 - 10.1115/BioMed2007-38089
DO - 10.1115/BioMed2007-38089
M3 - Conference contribution
AN - SCOPUS:36248968057
SN - 0791842665
SN - 9780791842669
T3 - Proceedings of the 2nd Frontiers in Biomedical Devices Conference 2007
SP - 29
EP - 30
BT - Proceedings of the 2nd Frontiers in Biomedical Devices Conference 2007
T2 - 2nd Frontiers in Biomedical Devices Conference 2007
Y2 - 7 June 2007 through 8 June 2007
ER -