Development of Soft Tissue Stiffness Measuring Device for Minimally Invasive Surgery by using Sensing Cum Actuating Method

Ming-Shaung Ju, H. M. Vong, Chou-Ching Lin, S. F. Ling

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Surgeon's perception of palpation is limited in a minimally invasive surgery so devices for in situ quantification of soft tissue stiffness are necessary. A PZT-driven miniaturized cantilever served as actuator and sensor simultaneously was developed. By using the sensing cum actuating method, the mechanical impedance functions of soft tissues can be measured. Bioviscoelastic materials silicone rubber and dissected porcine livers under room temperature or in frozen state were utilized to test the performance of the device. The frozen porcine liver was employed to simulate liver cirrhosis. The results showed that the dissipative modulus around the resonant frequency might be utilized to quantify the stiffness of the cancerous and normal liver structure. The application of the device to robot-assisted surgery was discussed.

Original languageEnglish
Title of host publication13th International Conference on Biomedical Engineering - ICBME 2008
Pages291-295
Number of pages5
DOIs
Publication statusPublished - 2009 Dec 1
Event13th International Conference on Biomedical Engineering, ICBME 2008 - , Singapore
Duration: 2008 Dec 32008 Dec 6

Publication series

NameIFMBE Proceedings
Volume23
ISSN (Print)1680-0737

Other

Other13th International Conference on Biomedical Engineering, ICBME 2008
CountrySingapore
Period08-12-0308-12-06

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Biomedical Engineering

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