Active depth-locking handheld micro-injector based on common-path swept source optical coherence tomography

Gyeong-Woo Cheon; Yong Huang; Jin U. Kang

doi:10.1117/12.2079346

5 March 2015 Active depth-locking handheld micro-injector based on common-path swept source optical coherence tomography

Gyeong-Woo Cheon, Yong Huang, Jin U. Kang

Author Affiliations +

Proceedings Volume 9317, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XV; 93170U (2015) https://doi.org/10.1117/12.2079346
Event: SPIE BiOS, 2015, San Francisco, California, United States

Abstract

This paper presents a handheld micro-injector system using common-path swept source optical coherence tomography (CP-SSOCT) as a distal sensor with highly accurate injection-depth-locking. To achieve real-time, highly precise, and intuitive freehand control, the system used graphics processing unit (GPU) to process the oversampled OCT signal with high throughput and a smart customized motion monitoring control algorithm. A performance evaluation was conducted with 60-insertions and fluorescein dye injection tests to show how accurately the system can guide the needle and lock to the target depth. The evaluation tests show our system can guide the injection needle into the desired depth with 4.12μm average deviation error while injecting 50nƖ of fluorescein dye.

Citation Download Citation

Gyeong-Woo Cheon, Yong Huang, and Jin U. Kang "Active depth-locking handheld micro-injector based on common-path swept source optical coherence tomography", Proc. SPIE 9317, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XV, 93170U (5 March 2015); https://doi.org/10.1117/12.2079346

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