A robotic endoscope based on minimally invasive locomotion and wireless techniques for human colon.
ABSTRACT BACKGROUND: Traditional endoscopy may cause tissue trauma and discomfort to patients because of the use of relatively long and semi-rigid scopes. METHODS: A wireless robotic endoscope has been designed based on minimally invasive locomotion and wireless techniques for energy, monitoring, and telecontrol. RESULTS: The robotic endoscope can move forward or backward effectively in a smooth synthetic glass tube. The increase of the tube dip angle reduces the relative speed. The robot moves with lower efficiency because of the viscoelasticity of intestinal tissue in in vitro pig colon. The wireless power system can continuously and stably provide a minimum 378 mW energy, which exceeds the maximum system consumption. The video system realizes wireless image transmission at 30 frames per second. Doctors control the robot remotely using a communication frequency of 433 MHz. CONCLUSIONS: The prototype robot shows the possibility of clinical application, but needs further improvement and testing. Copyright © 2011 John Wiley & Sons, Ltd.
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ABSTRACT: The video capsule endoscope has been developed to allow for direct examination of the small bowel in a safe, noninvasive and well-tolerated manner. The Olympus capsule endoscope, recently developed, with technology based on a charge-coupled device (CCD) and with electronic enhancement of image quality, differs from the Given capsule by a high-resolution CCD and an external real-time image viewer (External Viewer) monitor. The most frequent indications for video capsule endoscopy of the small bowel are the diagnosis of obscure gastrointestinal bleeding, angiodysplasia, Crohn's disease, celiac disease, hereditary polyposis syndromes, small bowel tumors. The following technical imaging review examines the current data and recent developments pertaining to diagnosis of small bowel lesions by video capsule endoscopy: indications, contraindications, diagnostic yield, spectrum of lesions.Journal of gastrointestinal and liver diseases: JGLD 10/2007; 16(3):309-13. · 1.86 Impact Factor