Basar Md Rubel, Ahmad Mohd Yazed, Cho Jongman, Ibrahim Fatimah
Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
Department of Biomedical Engineering, Inje University, Gimhae 621-749, Korea.
Sensors (Basel). 2014 Jun 19;14(6):10929-51. doi: 10.3390/s140610929.
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.
无线胶囊内镜检查（WCE）是一种很有前景的技术，可用于直接诊断整个小肠，以检测包括癌症和不明原因的胃肠道出血（OGIB）在内的致命疾病。为了提高诊断质量，需要改进WCE的一些重要规格，如图像分辨率、帧率和工作时间。此外，未来的多功能机器人胶囊内镜检查（RCE）装置可能会利用先进功能，如对胶囊运动的主动系统控制、药物输送系统、半手术工具和活检。然而，包含上述先进功能需要额外的电力，这使得传统的电源方法不切实际。在这方面，无线电力传输（WPT）系统已受到研究人员的关注，以克服这一问题。关于将WPT用于WCE的技术的系统评价有限，特别是当涉及到最近的技术进步时。本文旨在通过提供一项系统评价来填补这一空白，重点关注与传输功率量、功率传输效率、系统稳定性和患者安全相关的方面。需要注意的是，到目前为止，用于这种WCE应用的WPT系统的开发仍处于初始阶段，仍有改进的空间，特别是在系统效率、稳定性和患者安全方面。
