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Optical coherence tomography for dynamic axial correction of an optical end-effector for robot-guided surgical laser ablation.
- Source :
-
Optical Engineering . May2019, Vol. 58 Issue 5, p1-7. 7p. - Publication Year :
- 2019
-
Abstract
- Robot-guided laser ablation for surgical applications potentially offers many advantages compared to by-hand mechanical tissue cutting. However, given that tissue can be rough and/or uneven, ablation quality can be compromised if the beam waist deviates significantly from the target tissue surface. Therefore, we present a method that uses optical coherence tomography (OCT) for dynamic refocusing of robot-guided surgical laser ablation. A 7-DOF robotic manipulator with an OCT-equipped optical payload was used to simulate robotic guided laser osteotomy. M-mode OCT feedback is used for continuous surface detection to correct for axial deviations along the ablation path due to surface nonuniformity. We were able to show that such a correction scheme could maintain the beam waist within the depth of focus for surface variation as aggressive as 45 deg with feed rates up to 1 mm/s. Strategies for implementation in surgical and nonsurgical applications are examined. [ABSTRACT FROM AUTHOR]
- Subjects :
- *LASER ablation
*OPTICAL coherence tomography
*OPTICAL tomography
Subjects
Details
- Language :
- English
- ISSN :
- 00913286
- Volume :
- 58
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Optical Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 137087621
- Full Text :
- https://doi.org/10.1117/1.OE.58.5.054106