Lens scanning based MEMS catheter for forward endoscopic optical coherence tomography

Author

Park, H.C. ; Song, C. ; Jeong, K.H.

Author_Institution

Dept. of Bio & Brain Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea

fYear

2011

fDate

5-9 June 2011

Firstpage

2904

Lastpage

2907

Abstract

Real-time in-vivo forward-viewing optical coherence tomography imaging has been demonstrated with a novel lens scanning based MEMS endoscope catheter. An endoscopic catheter with an outer dimension of 7 mm × 7 mm has been designed, manufactured and assembled. By employing high-speed spectral domain optical coherence tomography, in-vivo two-dimensional cross-sectional images of human skin tissues were obtained as a preliminary study. Imaging speed of 122 frames per second and axial resolution of 7.7 μm are accomplished. The operation voltages are only DC 3 V and AC 6 V_pp at resonance frequency of 122 Hz. The catheter can provide many opportunities for clinical applications such as compact packaging, long working distance and body safe low operating voltages.

Keywords

bioMEMS; biomedical optical imaging; catheters; endoscopes; lenses; optical tomography; skin; MEMS endoscope catheter; compact packaging; forward endoscopic optical coherence tomography; frequency 122 Hz; high speed spectral domain optical coherence tomography; human skin tissue; lens scanning; voltage 3 V; voltage 6 V; Biomedical optical imaging; Catheters; High speed optical techniques; Lenses; Optical fibers; Optical imaging; Endoscopic catheter; Lens scanner; Micro-optical bench; Optical Coherence Tomography (OCT); Spectral Domain Optical Coherence Tomography (SD-OCT);

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Sensors, Actuators and Microsystems Conference (TRANSDUCERS), 2011 16th International

Conference_Location

Beijing

ISSN

Pending

Print_ISBN

978-1-4577-0157-3

Type

conf

DOI

10.1109/TRANSDUCERS.2011.5969750

Filename

5969750