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Sensors 2014, 14(6), 10929-10951; doi:10.3390/s140610929

Application of Wireless Power Transmission Systems in Wireless Capsule Endoscopy: An Overview

1
Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
2
Department of Biomedical Engineering, Inje University, Gimhae 621-749, Korea
3
Center of Innovation in Medical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
*
Author to whom correspondence should be addressed.
Received: 13 March 2014 / Revised: 18 May 2014 / Accepted: 26 May 2014 / Published: 19 June 2014
(This article belongs to the Special Issue Biomedical Sensors and Systems)
View Full-Text   |   Download PDF [684 KB, uploaded 23 June 2014]   |  

Abstract

Wireless capsule endoscopy (WCE) is a promising technology for direct diagnosis of the entire small bowel to detect lethal diseases, including cancer and obscure gastrointestinal bleeding (OGIB). To improve the quality of diagnosis, some vital specifications of WCE such as image resolution, frame rate and working time need to be improved. Additionally, future multi-functioning robotic capsule endoscopy (RCE) units may utilize advanced features such as active system control over capsule motion, drug delivery systems, semi-surgical tools and biopsy. However, the inclusion of the above advanced features demands additional power that make conventional power source methods impractical. In this regards, wireless power transmission (WPT) system has received attention among researchers to overcome this problem. Systematic reviews on techniques of using WPT for WCE are limited, especially when involving the recent technological advancements. This paper aims to fill that gap by providing a systematic review with emphasis on the aspects related to the amount of transmitted power, the power transmission efficiency, the system stability and patient safety. It is noted that, thus far the development of WPT system for this WCE application is still in initial stage and there is room for improvements, especially involving system efficiency, stability, and the patient safety aspects. View Full-Text
Keywords: wireless power transmission (WPT); wireless capsule endoscopy (WCE); robotic capsule endoscopy (RCE); inductive coupling; specific absorption rate (SAR); current density wireless power transmission (WPT); wireless capsule endoscopy (WCE); robotic capsule endoscopy (RCE); inductive coupling; specific absorption rate (SAR); current density
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Basar, M.R.; Ahmad, M.Y.; Cho, J.; Ibrahim, F. Application of Wireless Power Transmission Systems in Wireless Capsule Endoscopy: An Overview. Sensors 2014, 14, 10929-10951.

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