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Experimental investigation of frictional and viscoelastic properties of intestine for microendoscope application

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Abstract

The information on the frictional resistance of a self-propelled robotic capsule endoscope moving inside the body is very important for the design and the performance enhancement of such parameters of the capsule endoscope as power consumption, motion control and positioning accuracy. Based on this motivation, the ultimate goal of this research was to develop an analytical model that can predict the frictional resistance of the capsule endoscope moving inside the living body. In this work, experimental investigations of the fundamental frictional characteristics and the viscoelastic behaviors of the small intestine were performed by using custom-built testers and various capsule dummies. The small intestine of a pig was used for the experiments. Experimental results showed that the average frictional force was 10–50 mN and higher moving speed of the capsule dummy resulted in larger frictional resistance of the capsule. In addition, the friction coefficient did not change significantly with respect to the apparent area of contact between the capsule dummy and the intestine, and also the friction coefficients decreased with an increase in the normal load and varied from 0.08 to 0.2. Such frictional behaviors could be explained by the lubrication characteristics of the intestine surface and typical viscoelastic characteristics of the small intestine material. Also, based on the experimental results, a viscoelasticity model for the stress relaxation of the small intestine could be derived.

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Abbreviations

F :

Friction force (N)

μ :

Friction coefficient

N :

Normal force applied to the capsule (N)

σ(t) :

Stress applied to the small intestine (Pa, N/m2)

ε 0 :

Strain applied to the small intestine

t :

Time (s)

E 1, E 2, E 3 :

Elastic modulus of spring (Pa, N/m2)

η1, η2 :

Viscosity of fluid in dashpot (Pa s)

References

  1. Howe R.D., Matsuoka Y. (1999) Annu. Rev. Biomed. Eng. 1: 211

    Article  CAS  Google Scholar 

  2. Iddan G., Meron G., Glukhovsky A., Swain P. (2000) Nature 405:417

    Article  CAS  Google Scholar 

  3. Fleischer D.E. (2002) Gastrointest. Endosc. 56: 452

    Article  Google Scholar 

  4. Peirs J., Reynaerts D., Van Brussel H. (2000) Sens. Actuator A-Phys. 85: 409

    Article  Google Scholar 

  5. Kim B., Lee S., Park J.H., Park J.O. (2005) IEEE-ASME Trans. Mechatron. 10: 77

    Article  Google Scholar 

  6. Dario P., Ciarletta P., Menciassi A., Kim B. (2004) Int. J. Robot. Res. 23: 549

    Article  Google Scholar 

  7. Meyer E., Overney R.M., Dransfeld K., Gyalog T. (1998) Nanoscience World Scientific Publishing Co., Singapore

    Google Scholar 

  8. Baek N.K., Sung I.H., Kim D.E. (2004) Proc. Inst. Mech. Eng. Part H – J. Eng. Med. 218: 193

    Article  CAS  Google Scholar 

  9. Miller E.R., Ullrey D.E. (1987) Ann. Rev. Nutr. 7: 361

    Article  CAS  Google Scholar 

  10. Ravelingien A. (2005) Xenotransplantation 12: 235

    Article  Google Scholar 

  11. Martini F.H. (1995) Fundamentals of Anatomy & Physiology Prentice Hall, New Jersey

    Google Scholar 

  12. Marieb E. (1998) Human Anatomy & Physiology Menlo Park, California

    Google Scholar 

  13. Fung Y.C. (1993) Biomechanics: Mechanical Properties of Living Tissues Springer-Verlag, New York

    Google Scholar 

  14. Anderson J., Li Z., Goubel F. (2002) J. Biomech. 35: 1315

    Article  CAS  Google Scholar 

  15. Lakes R.S. (1999) Viscoelastic Solids CRC Press, Boca Raton, Florida

    Google Scholar 

  16. Pioletti D.P., Rakotomanana L.R. (2000) Eur. J. Mech. A-Solids 19: 749

    Article  Google Scholar 

  17. Flugge W. (1975) Viscoelasticity Springer-Verlag, Berlin

    Google Scholar 

  18. Findley W.N., Lai J.S. (1989) Creep and Relaxation of Nonlinear Viscoelastic Materials Dover Publications, New York

    Google Scholar 

  19. J.S. Kim, I.H. Sung, Y.T. Kim, D.E. Kim and Y.H. Jang, Med. Eng. Phys. (submitted)

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Acknowledgments

This research has been supported by the Intelligent Microsystem Center (IMC; http://www.microsystem.re.kr), which carries out one of the 21st Century’s Frontier R&D Projects sponsored by the Korea Ministry of Commerce, Industry and Energy.

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Author notes

  1. J.-S. Kim

    Present address: Samsung Electro-Mechanics Co., Ltd., 314 Maetan3-Dong, Yeongtong-Gu, Suwon, 443-743, Gyunggi-Do, Korea

Authors and Affiliations

  1. School of Mechanical Engineering, Yonsei University, 134 Shinchon-dong, Seodaemoon-gu, Seoul, 120-749, Korea

    J.-S. Kim, I.-H. Sung, Y.-T. Kim, E.-Y. Kwon, D.-E. Kim & Y. H. Jang

  2. Department of Mechanical Engineering, Hannam University, 133 Ojeong-dong, Daedeok-gu, Daejeon, 306-791, Korea

    I.-H. Sung

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  1. J.-S. Kim
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  2. I.-H. Sung
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  3. Y.-T. Kim
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  4. E.-Y. Kwon
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  5. D.-E. Kim
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  6. Y. H. Jang
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Correspondence to D.-E. Kim.

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Kim, JS., Sung, IH., Kim, YT. et al. Experimental investigation of frictional and viscoelastic properties of intestine for microendoscope application. Tribol Lett 22, 143–149 (2006). https://doi.org/10.1007/s11249-006-9073-0

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  • DOI: https://doi.org/10.1007/s11249-006-9073-0

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