TY - GEN
T1 - Sensorized guidewires with MEMS tri-axial force sensor for minimally invasive surgical applications
AU - Lou, Liang
AU - Ramakrishna, Kotlanka
AU - Shao, Lichun
AU - Park, Woo Tae
AU - Yu, Daquan
AU - Lim, Lishiah
AU - Wee, Yongjun
AU - Kripesh, Vaidyanathan
AU - Feng, Hanhua
AU - Chua, Benjamin S.Y.
AU - Lee, Chengkuo
AU - Kwong, Dim Lee
PY - 2010
Y1 - 2010
N2 - 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.
AB - 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.
KW - Finite element analysis
KW - MEMS
KW - Minimally invasive surgery
KW - Sensorized guidewire
KW - Tactile sensor
KW - Tri-axial force sensor
UR - http://www.scopus.com/inward/record.url?scp=78650832354&partnerID=8YFLogxK
U2 - 10.1109/IEMBS.2010.5627345
DO - 10.1109/IEMBS.2010.5627345
M3 - Conference contribution
C2 - 21096718
AN - SCOPUS:78650832354
SN - 9781424441235
T3 - 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
SP - 6461
EP - 6464
BT - 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
T2 - 2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
Y2 - 31 August 2010 through 4 September 2010
ER -