NDLI: Flexible tactile sensor attached to laparoscope for mechanical characteristics of soft materials and tissues

Content Provider	IEEE Xplore Digital Library
Author	Chuang, C.H. Lu, K.F. Mu, J.L.
Copyright Year	2013
Description	Author affiliation: Dept. of Mech. Eng., Southern Taiwan Univ. of Sci. & Technol., Yung-Kang, Taiwan (Chuang, C.H.; Lu, K.F.; Mu, J.L.)
Abstract	Detection of the mechanical characteristic of tissues is useful to distinguish the difference between a cancerous lump and healthy tissues for minimally invasive surgery (MIS). In this study, a novel miniaturized tactile sensor is designed to attach to laparoscope for differentiating soft tissues from animals. The flexible tactile sensor consists of two patterned flexible print circuit (FPC) sandwiching a polymer piezoelectric film (PVDF) and a small steel ball embedded in a soft material (PDMS) on the FPC surface. Due to the stiffness difference between steel ball and PDMS material, the uneven stress distribution on piezoelectric film can be induced and varied with contact objects. Therefore, the mechanical characteristics of contact object can be differentiated by the ratio of voltage outputs between the inner and outer electrodes on the piezoelectric film. As experimental results, the voltage ratio increases with the Young's Modulus for the commercial elastomeric materials. In addition, five soft tissues of animals also can be differentiated by the tactile sensor attached to a laparoscope.
Starting Page	2169
Ending Page	2172
File Size	1098638
Page Count	4
File Format	PDF
ISBN	9781467359832
ISSN	21641641
DOI	10.1109/Transducers.2013.6627232
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-16
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Tactile sensors Voltage measurement Laparoscopes Steel Young's modulus Force Minimally invasive surgery (MIS) Tactile sensor Piezoelectric PVDF
Content Type	Text
Resource Type	Article

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