Please use this identifier to cite or link to this item: https://doi.org/10.1109/IEMBS.2010.5627345
Title: Sensorized guidewires with MEMS tri-axial force sensor for minimally invasive surgical applications
Authors: Lou, L.
Ramakrishna, K.
Shao, L.
Park, W.-T.
Yu, D.
Lim, L.
Wee, Y.
Kripesh, V.
Feng, H.
Chua, B.S.Y.
Lee, C. 
Kwong, D.-L.
Keywords: Finite element analysis
MEMS
Minimally invasive surgery
Sensorized guidewire
Tactile sensor
Tri-axial force sensor
Issue Date: 2010
Source: Lou, L., Ramakrishna, K., Shao, L., Park, W.-T., Yu, D., Lim, L., Wee, Y., Kripesh, V., Feng, H., Chua, B.S.Y., Lee, C., Kwong, D.-L. (2010). Sensorized guidewires with MEMS tri-axial force sensor for minimally invasive surgical applications. 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10 : 6461-6464. ScholarBank@NUS Repository. https://doi.org/10.1109/IEMBS.2010.5627345
Abstract: This paper describes the design of a tri-axial microelectromechanical force sensor (FS) that can be mounted on the tip of the guidewire. Piezoresistive silicon nanowires (SiNW) are embedded into a cross cantilever design with a manoeuvrable stylus to allow the detection of force in all directions. The electrical resistance changes in the four SiNWs are used to decode an arbitrary force applied onto the FS. The sensitivity of the device can be improved by two orders of magnitude compared to bulk Si thanks to the giant piezoresistive effects offered by the SiNW. Robustness of the FS is improved due to the novel design by incorporating a mechanical stopper at the tip of the stylus. Finite element analysis (FEM) analysis was used in designing the FS. © 2010 IEEE.
Source Title: 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
URI: http://scholarbank.nus.edu.sg/handle/10635/71751
ISBN: 9781424441235
DOI: 10.1109/IEMBS.2010.5627345
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