Advancing towards smart endoscopy with specific electronics to enable locomotion and focusing capabilities in a wireless endoscopic capsule robot

Author

Alonso, O. ; Freixas, L. ; Dieguez, A.

Author_Institution

Dept. of Electron., Univ. of Barcelona, Barcelona, Spain

fYear

2009

fDate

26-28 Nov. 2009

Firstpage

213

Lastpage

216

Abstract

The paper reports the electronics used in a new developed wireless endoscopic capsule provided with novel focus and locomotion features. The locomotion is enabled by using legs driven by 2 brushless DC (BLDC) micromotors. The focusing system is enabled by using a liquid lens with a variable focal. These functions are managed by an ASIC that has been developed to provide the specific innovative functions. The size of the ASIC is 3.0 mm Ã— 2.7 mm in a 0.35 um high voltage CMOS technology. The ASIC is described in detail, as well as the performances when it is used with the final devices used in the capsule.

Keywords

CMOS integrated circuits; application specific integrated circuits; biomedical electronics; brushless DC motors; endoscopes; image sensors; lenses; medical robotics; optical materials; wireless sensor networks; ASIC; CMOS technology; brushless DC micromotors; robotic legs; size 2.7 mm; size 3.0 mm; smart endoscopy; variable focal length liquid lens; wireless endoscopic capsule robot focusing; wireless endoscopic capsule robot locomotion; Application specific integrated circuits; Batteries; Bidirectional control; Endoscopes; Focusing; Gastrointestinal tract; Intelligent robots; Lenses; Lighting; Machine vision;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Circuits and Systems Conference, 2009. BioCAS 2009. IEEE

Conference_Location

Beijing

Print_ISBN

978-1-4244-4917-0

Electronic_ISBN

978-1-4244-4918-7

Type

conf

DOI

10.1109/BIOCAS.2009.5372047

Filename

5372047