TY - JOUR
T1 - Image-based optical miniaturized three-axis force sensor for cardiac catheterization
AU - Noh, Yohan
AU - Liu, Hongbin
AU - Sareh, Sina
AU - Chathuranga, Damith Suresh
AU - Wurdemann, Helge
AU - Rhode, Kawal
AU - Althoefer, Kaspar
PY - 2016/11/15
Y1 - 2016/11/15
N2 - In order to determine the cause of and to treat an abnormal heart rhythm, electrophysiological studies and ablation procedures of the heart sensorized catheters are required. During catheterization, force sensors at the tip of the catheter are essential to provide quantitative information on the interacting force between the catheter tip and the heart tissue. In this paper, we are proposing a small sized, robust, and low-cost three-axis force sensor for the catheter tip. The miniaturized force sensor uses the fiber-optic technology (small sized multi-cores optical fiber and a CCD camera based on image processing to read out the forces by measuring light intensity, which are modulated as a function of the applied force. In addition, image processing techniques and a Kalman filter are used to reduce the noise of the light intensity signals. In this paper, we explain the design and fabrication of our three-axis force sensor and our approach for reducing noise levels by applying a Kalman filter model, and finally discuss the calibration procedure. Moreover, we provide an assessment of the performance of the proposed sensor.
AB - In order to determine the cause of and to treat an abnormal heart rhythm, electrophysiological studies and ablation procedures of the heart sensorized catheters are required. During catheterization, force sensors at the tip of the catheter are essential to provide quantitative information on the interacting force between the catheter tip and the heart tissue. In this paper, we are proposing a small sized, robust, and low-cost three-axis force sensor for the catheter tip. The miniaturized force sensor uses the fiber-optic technology (small sized multi-cores optical fiber and a CCD camera based on image processing to read out the forces by measuring light intensity, which are modulated as a function of the applied force. In addition, image processing techniques and a Kalman filter are used to reduce the noise of the light intensity signals. In this paper, we explain the design and fabrication of our three-axis force sensor and our approach for reducing noise levels by applying a Kalman filter model, and finally discuss the calibration procedure. Moreover, we provide an assessment of the performance of the proposed sensor.
KW - Catheters
KW - fiber optics
KW - force sensors
KW - image processing
KW - Kalman filter
UR - http://www.scopus.com/inward/record.url?scp=84994803346&partnerID=8YFLogxK
U2 - 10.1109/JSEN.2016.2600671
DO - 10.1109/JSEN.2016.2600671
M3 - Article
AN - SCOPUS:84994803346
SN - 1530-437X
VL - 16
SP - 7924
EP - 7932
JO - IEEE SENSORS JOURNAL
JF - IEEE SENSORS JOURNAL
IS - 22
M1 - 7544487
ER -