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Research Papers: General

Common-path low-coherence interferometry fiber-optic sensor guided microincision

[+] Author Affiliations
Kang Zhang, Jin U. Kang

Johns Hopkins University, Department of Electrical and Computer Engineering, 3400 North Charles Street, Barton Hall 402, Baltimore, Maryland 21218

J. Biomed. Opt. 16(9), 095003 (September 01, 2011). doi:10.1117/1.3622492
History: Received May 15, 2011; Revised June 26, 2011; Accepted July 14, 2011; Published September 01, 2011; Online September 01, 2011
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We propose and demonstrate a common-path low-coherence interferometry (CP-LCI) fiber-optic sensor guided precise microincision. The method tracks the target surface and compensates the tool-to-surface relative motion with better than ±5 μm resolution using a precision micromotor connected to the tool tip. A single-fiber distance probe integrated microdissector was used to perform an accurate 100 μm incision into the surface of an Intralipid phantom. The CP-LCI guided incision quality in terms of depth was evaluated afterwards using three-dimensional Fourier-domain optical coherence tomography imaging, which showed significant improvement of incision accuracy compared to free-hand-only operations.

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© 2011 Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation

Kang Zhang and Jin U. Kang
"Common-path low-coherence interferometry fiber-optic sensor guided microincision", J. Biomed. Opt. 16(9), 095003 (September 01, 2011). ; http://dx.doi.org/10.1117/1.3622492


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