Abstract
Optical coherence tomography (OCT) combined with an ablative Er:YAG laser has been recognized as a promising technique for real-time monitoring and controlling the depth of laser-induced cuts during laser osteotomy procedures. In this study, a miniaturized OCT-assisted Er:YAG laser system was developed for controlled laser ablation of bone tissue. The developed system involved coupling a high-power Er:YAG laser into a sapphire fiber with a core diameter of 425 µm and miniaturizing the sample arm of a long-range swept-source OCT system. Controlled laser osteotomy experiments were performed to evaluate the performance of the miniaturized setup. Real-time depth monitoring and control were achieved through an optical shutter controlled by the OCT system. The experimental results showed controlled ablation with a mean accuracy of 0.028 mm when targeting depths of 1 mm, 3 mm, and 5 mm on cow femur bones. These results demonstrate the potential of the developed miniaturized OCT-assisted Er:YAG laser system for use in robotic-assisted minimally-invasive laser osteotomy.
Original language | English (US) |
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Pages (from-to) | 2106-2115 |
Number of pages | 10 |
Journal | Optics Continuum |
Volume | 2 |
Issue number | 10 |
DOIs | |
State | Published - 2023 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics