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Magnetically Actuated Capsule Robots: A Review

期刊

IEEE ACCESS
卷 10, 期 -, 页码 88398-88420

出版社

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2022.3197632

关键词

Gastrointestinal tract; magnetically actuated; capsule endoscopy; capsule robot

资金

  1. National Natural Science Foundation of China [52175386, 51805091]

向作者/读者索取更多资源

Capsule endoscopy is a non-invasive procedure that uses a wireless camera inside a capsule to capture images of the gastrointestinal tract. However, the current capsule endoscope has limitations in controllable locomotion and lacks extended functions. Magnetic actuation offers a solution to expand the capabilities of capsule endoscopy and develop multifunctional capsule robots.
Capsule endoscopy is a procedure that uses a tiny wireless camera inside a capsule endoscope to capture pictures of the patient's gastrointestinal tract for diagnosis. Gastrointestinal examination has been revolutionized by capsule endoscope owing to its simplicity and non-invasiveness. However, at this stage, the capsule endoscope has a weak controllable locomotion capability and does not have extended functions such as biopsy, localization, and therapeutics, which has become the main obstacle to expanding its application. The use of an external magnetic field to actuate the capsule endoscope has the advantages of simple response structure inside the capsule and remote energy supply, which can expand the above-mentioned functions of the capsule endoscope and develop into a multifunctional capsule robot. This paper analyzes two types of magnetic actuation systems for magnetically actuated capsule robots, discusses research on the functions of magnetically actuated capsule robots in active locomotion, anchoring, biopsy, localization, therapeutics, wireless power supply, and multi-capsule robot collaboration, and points out the existing problems and future development directions of magnetically actuated capsule robots.

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