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Surgical Endoscopy

Published in:

01-10-2012

Surgical evaluation of a novel tethered robotic capsule endoscope using micro-patterned treads

Authors: Levin J. Sliker, Madalyn D. Kern, Jonathan A. Schoen, Mark E. Rentschler

Published in: Surgical Endoscopy | Issue 10/2012

Abstract

Background

The state-of-the-art technology for gastrointestinal (GI) tract exploration is a capsule endoscope (CE). Capsule endoscopes are pill-sized devices that provide visual feedback of the GI tract as they move passively through the patient. These passive devices could benefit from a mobility system enabling maneuverability and controllability. Potential benefits of a tethered robotic capsule endoscope (tRCE) include faster travel speeds, reaction force generation for biopsy, and decreased capsule retention.

Methods

In this work, a tethered CE is developed with an active locomotion system for mobility within a collapsed lumen. Micro-patterned polydimethylsiloxane (PDMS) treads are implemented onto a custom capsule housing as a mobility method. The tRCE housing contains a direct current (DC) motor and gear train to drive the treads, a video camera for visual feedback, and two light sources (infrared and visible) for illumination.

Results

The device was placed within the insufflated abdomen of a live anesthetized pig to evaluate mobility performance on a planar tissue surface, as well as within the cecum to evaluate mobility performance in a collapsed lumen. The tRCE was capable of forward and reverse mobility for both planar and collapsed lumen tissue environments. Also, using an onboard visual system, the tRCE was capable of demonstrating visual feedback within an insufflated, anesthetized porcine abdomen.

Conclusion

Proof-of-concept in vivo tRCE mobility using micro-patterned PDMS treads was shown. This suggests that a similar method could be implemented in future smaller, faster, and untethered RCEs.

Given Imaging Ltd (2011) Overview of products. Available at http://www.givenimaging.com/en-us/HealthCareProfessionals/Pages/pageHCP.aspx. Accessed 6 April 2011

Cave D, Legnani P, de Franchis R, Lewis BS (2005) ICCE consensus for capsule retention. Endoscopy 37(10):1065–1067PubMedCrossRef

Liao Z, Gao R, Xu C, Li ZS (2010) Indications and detection, completion, and retention rates of small-bowel capsule endoscopy: a systematic review. Gastrointest Endosc 71(2):280–286PubMedCrossRef

Beutel RG, Gorb SN (2001) Ultrastructure of attachment specializations of hexapods (Arthropoda): evolutionary patterns inferred from a revised ordinal phylogeny. J Zool Syst Evol Res 39(4):177–207CrossRef

Beutel RG, Gorb SN (2006) A revised interpretation of the evolution of attachment structures in hexapoda with special emphasis on Mantophasmatodea. Arthropod Syst Phylog 64(1):3–25

Gorb S (2000) Biological microtribology: anisotropy in frictional forces of orthopteran attachment pads reflects the ultrastructure of a highly deformable material. Proc R Soc Lond B Biol Sci 267(1449):1239–1244CrossRef

Gorb SN (2011) Attachment devices of insect cuticle. Springer, New York

Persson BN, Gorb SN (2003) The effect of surface roughness on the adhesion of elastic plates with application to biological systems. J Chem Phys 119(21):11437–11444CrossRef

Karagozler ME, Cheung E, Kwon J, Sitti M (2006) Miniature endoscopic capsule robot using biomimetic micro-patterned adhesives. In: Proc. IEEE/RAS-EMBS international conference on biomedical robotics and biomechatronics, pp 105–111

10.

Cheung E, Karagozler ME, Park S, Kim B, Sitti M (2005) A new endoscopic microcapsule robot using beetle inspired microfibrillar adhesives. In: Proc. IEEE/ASME international conference on advanced intelligent mechatronics, pp 551–557

11.

Glass P, Cheung E, Sitti M (2008) A legged anchoring mechanism for capsule endoscopes using micropatterned adhesives. IEEE Trans Biomed Eng 55(12):2759–2767PubMedCrossRef

12.

Buselli E, Pensabene V, Castrataro P, Valdastri P, Menciassi A, Dario P (2010) Evaluation of friction enhancement through soft polymer micro-patterns in active capsule endoscopy. Measure Sci Technol 21(10):105802-1–105802-7CrossRef

13.

Valdastri P, Webster RJ, Quaglia C, Quirini M, Menciassi A, Dario P (2009) A new mechanism for mesoscale legged locomotion in compliant tubular environments. IEEE Trans Robotics 25(5):1047–1057CrossRef

14.

Sliker LJ, Wang X, Schoen JA, Rentschler ME (2010) Micropatterned treads for in vivo robotic mobility. J Med Devices 4(4):041006-1–041006-8CrossRef

15.

Ntziachristos V, Chance B (2000) Probing physiology and molecular function using optical imaging: applications to breast cancer. Breast Cancer Res 3(1):41–46PubMedCrossRef

Title: Surgical evaluation of a novel tethered robotic capsule endoscope using micro-patterned treads
Authors: Levin J. Sliker
Madalyn D. Kern
Jonathan A. Schoen
Mark E. Rentschler
Publication date: 01-10-2012
Publisher: Springer-Verlag
Published in: Surgical Endoscopy / Issue 10/2012
Print ISSN: 0930-2794
Electronic ISSN: 1432-2218
DOI: https://doi.org/10.1007/s00464-012-2271-y

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Surgical evaluation of a novel tethered robotic capsule endoscope using micro-patterned treads

Abstract

Background

Methods

Results

Conclusion

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Background

Methods

Results

Conclusion

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