| Controlled navigation of endoscopic capsules: concept and preliminary experimental investigations. | |
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MedLine Citation:
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PMID: 18018698 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This paper describes a technique to control the navigation of traditional wireless endoscopic capsules and reports preliminary proof-of-concept investigations. These capsules are used for noninvasive explorations of the digestive tube. At present, their motion cannot be controlled and they proceed by means of the visceral peristalsis. In order to enable motion controls, the technique proposed here adopts magnetic shells which are to be applied to available capsules, immediately before their use. The shells are used to control the capsule movement by means of external magnetic fields. This solution is readily applicable to any endoscopic capsule, avoiding internal modifications. Prototype elastic shells made of silicone elastomers mixed with magnetic particles were fabricated. They were tested with the most diffused capsule (model M2A, Given Imaging Ltd., Yoqneam, Israel), by studying the performance of the capsule/shell complex in simplified experimental conditions. Bench tests permitted to demonstrate controlled translations, rotations, and rototranslations of the capsule/shell complex within tubular structures coated with pieces of bovine tissues. The use of a new instrumentation, recently developed for cardiovascular treatments, is proposed as a potential means enabling the application of controlled magnetic fields for intrabody navigations. |
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Authors:
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Federico Carpi; Stefano Galbiati; Angelo Carpi |
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Publication Detail:
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Type: Evaluation Studies; Journal Article |
Journal Detail:
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Title: IEEE transactions on bio-medical engineering Volume: 54 ISSN: 0018-9294 ISO Abbreviation: IEEE Trans Biomed Eng Publication Date: 2007 Nov |
Date Detail:
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Created Date: 2007-11-16 Completed Date: 2007-12-13 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0012737 Medline TA: IEEE Trans Biomed Eng Country: United States |
Other Details:
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Languages: eng Pagination: 2028-36 Citation Subset: IM |
Affiliation:
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Interdepartmental Research Centre E. Piaggio, School of Engineering, University of Pisa, via Diotisalvi, 2, 56100 Pisa, Italy. f.carpi@ing.unipi.it |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Capsule Endoscopes* Capsule Endoscopy / methods* Equipment Design Equipment Failure Analysis Image Enhancement / instrumentation, methods Magnetics / diagnostic use*, instrumentation* Micromanipulation / instrumentation*, methods* Motion Pilot Projects |
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