A common-path optical coherence tomography distance-sensor based surface tracking and motion compensation hand-held microsurgical tool

Kang Zhang; Peter Gehlbach; Jin U. Kang

doi:10.1117/12.874193

4 March 2011 A common-path optical coherence tomography distance-sensor based surface tracking and motion compensation hand-held microsurgical tool

Kang Zhang, Peter Gehlbach, Jin U. Kang

Author Affiliations +

Proceedings Volume 7894, Optical Fibers, Sensors, and Devices for Biomedical Diagnostics and Treatment XI; 78940G (2011) https://doi.org/10.1117/12.874193
Event: SPIE BiOS, 2011, San Francisco, California, United States

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.

Citation Download Citation

Kang Zhang, Peter Gehlbach, and Jin U. Kang "A common-path optical coherence tomography distance-sensor based surface tracking and motion compensation hand-held microsurgical tool", Proc. SPIE 7894, Optical Fibers, Sensors, and Devices for Biomedical Diagnostics and Treatment XI, 78940G (4 March 2011); https://doi.org/10.1117/12.874193

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