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Proceedings Paper

A common-path optical coherence tomography distance-sensor based surface tracking and motion compensation hand-held microsurgical tool
Author(s): Kang Zhang; Peter Gehlbach; Jin U. Kang
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Paper Abstract

Microsurgery requires constant attention to the involuntary motion due to physiological tremors. In this work, we demonstrated a simple and compact hand-held microsurgical tool capable of surface tracking and motion compensation based on common-path optical coherence tomography (CP-OCT) distance-sensor to improve the accuracy and safety of microsurgery. This tool is miniaturized into a 15mm-diameter plastic syringe and capable of surface tracking at less than 5 micrometer resolution. A phantom made with Intralipid layers is used to simulate a real tissue surface and a single-fiber integrated micro-dissector works as a surgical tip to perform tracking and accurate incision on the phantom surface. The micro-incision depth is evaluated after each operation through a fast 3D scanning by the Fourier domain OCT system. The results using the surface tracking and motion compensation tool show significant improvement compared to the results by free-hand.

Paper Details

Date Published: 4 March 2011
PDF: 8 pages
Proc. SPIE 7894, Optical Fibers, Sensors, and Devices for Biomedical Diagnostics and Treatment XI, 78940G (4 March 2011); doi: 10.1117/12.874193
Show Author Affiliations
Kang Zhang, The Johns Hopkins Univ. (United States)
Peter Gehlbach, The Johns Hopkins School of Medicine (United States)
Jin U. Kang, The Johns Hopkins Univ. (United States)


Published in SPIE Proceedings Vol. 7894:
Optical Fibers, Sensors, and Devices for Biomedical Diagnostics and Treatment XI
Israel Gannot, Editor(s)

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