Study on a magnetic spiral-type wireless capsule endoscope controlled by rotational external permanent magnet

2015 ◽  
Vol 395 ◽  
pp. 316-323 ◽  
Author(s):  
Bo Ye ◽  
Wei Zhang ◽  
Zhen-jun Sun ◽  
Lin Guo ◽  
Chao Deng ◽  
...  
2016 ◽  
Vol 16 (03) ◽  
pp. 1650031 ◽  
Author(s):  
YE BO ◽  
SUN ZHENJUN ◽  
CHEN YAQI ◽  
ZHANG HONGHAI ◽  
LIU SHENG

In this paper, the authors propose a new magnetic control method for spiral-type wireless capsule endoscope (WCE). A cylindrical external permanent magnet (EPM) is used to generate rotational magnetic field to manipulate the synchronous rotation of a magnetic spiral-type WCE. To verify the feasibility of this method, a handheld actuator (HA) controlled by micro controller unit (MCU) was fabricated to drive the rotation of the EPM which is fixed on a step motor, and a magnetic spiral-type WCE along with a bracket were fabricated, too. Theoretical analysis and magnetic simulation about the control distance were performed. In ex vivo experiments were carried out in porcine small intestine, the control distance and control performances were evaluated. Experimental results indicate that this method can provide a maximum control distance up to 426.6[Formula: see text]mm with good control stability. Compared with Helmholtz coils method, this method is more cost-effective and the control region is broader. In addition, the estimated value of static friction torque (about 0.5694[Formula: see text]mN[Formula: see text][Formula: see text][Formula: see text]m) is obtained, which enriches the current research on friction issue in active control of the magnetic spiral-type WCE. This method has great potential to be applied in future clinical application.


IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 108113-108120
Author(s):  
Bo Ye ◽  
Zhaoquan Zhong ◽  
Wei Zhang ◽  
Donghong Hu

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
Pål Anders Floor ◽  
Ivar Farup ◽  
Marius Pedersen ◽  
Øistein Hovde

2020 ◽  
Vol 309 ◽  
pp. 01007
Author(s):  
Ting Fang ◽  
Xiongwei Wu

The wireless capsule endoscope system allows clinicians to directly observe the image of the inner wall of the human gastrointestinal tract and obtain the most intuitive information at the lesion. Compared with traditional endoscopic detection technology, its painless, non-invasive, safe and convenient, full gastrointestinal detection features make this technology a research focus in the field of medical devices at home and abroad. As a new non-invasive detection technology for gastrointestinal diseases, the working time, image frame rate and image quality of the existing wireless capsule endoscope system cannot fully meet the needs in clinical applications. The cause of these problems lies in the capsule. The internal space of the speculum is limited, and only the button battery can be used as the energy source. Therefore, it is necessary to design a video capsule endoscope based on wireless energy transmission technology. This article is a review of Zhu Zhanquan, Xue Kaifeng, Lu Ruiqi and other scholars.


Sign in / Sign up

Export Citation Format

Share Document