TY - GEN
T1 - Fiber probe design for needle tip depth sensing in subretinal injection surgery based on SD-OCT
AU - Yan, Zheng
AU - Huang, Yong
AU - Liu, Yin
AU - Li, Xiaochen
AU - Qiao, Zhengyu
AU - Hao, Qun
N1 - Publisher Copyright:
© 2024 SPIE.
PY - 2024
Y1 - 2024
N2 - At present, there have been many studies using OCT technology to assist subretinal injection surgery. One of the research directions is to perceive the depth of needle penetration by collecting A-Line signal of tissue in real time. Most of the OCT systems in such solutions use a common optical path architecture, which basically does not require dispersion compensation, and the structure is simple, but the working distance is fixed. In this paper, a needle tip depth sensing SD-OCT system was developed. Two types of ball lens fiber probes emitting quasi-parallel light were designed for use in air and water. The ball lens fiber probe used in water was fabricated. A probe, called a single-mode fiber probe, was manufactured by cutting the light emitting surface of a single-mode fiber using a fiber cleaver. Under the same conditions, in the water, the A-Line signal of the mirror collected by the SD-OCT system integrated with the ball lens fiber probe used in the water is stronger than that collected by the SD-OCT system integrated with the single-mode fiber probe. When collecting the A-Line signal of the mirror in water, the SD-OCT system integrated with the ball lens fiber probe used in the water has a longer working distance than the CP-SDOCT system integrated with the single-mode fiber probe. Finally, the needle tip depth sensing function of the system was tested through experiments.
AB - At present, there have been many studies using OCT technology to assist subretinal injection surgery. One of the research directions is to perceive the depth of needle penetration by collecting A-Line signal of tissue in real time. Most of the OCT systems in such solutions use a common optical path architecture, which basically does not require dispersion compensation, and the structure is simple, but the working distance is fixed. In this paper, a needle tip depth sensing SD-OCT system was developed. Two types of ball lens fiber probes emitting quasi-parallel light were designed for use in air and water. The ball lens fiber probe used in water was fabricated. A probe, called a single-mode fiber probe, was manufactured by cutting the light emitting surface of a single-mode fiber using a fiber cleaver. Under the same conditions, in the water, the A-Line signal of the mirror collected by the SD-OCT system integrated with the ball lens fiber probe used in the water is stronger than that collected by the SD-OCT system integrated with the single-mode fiber probe. When collecting the A-Line signal of the mirror in water, the SD-OCT system integrated with the ball lens fiber probe used in the water has a longer working distance than the CP-SDOCT system integrated with the single-mode fiber probe. Finally, the needle tip depth sensing function of the system was tested through experiments.
KW - depth perception
KW - optical coherence tomography
KW - optical fiber probe
KW - subretinal injection surgery
UR - http://www.scopus.com/inward/record.url?scp=85213997872&partnerID=8YFLogxK
U2 - 10.1117/12.3046414
DO - 10.1117/12.3046414
M3 - Conference contribution
AN - SCOPUS:85213997872
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - AOPC 2024
A2 - Zhang, Xiaodong
PB - SPIE
T2 - 2024 Applied Optics and Photonics China: Biomedical Optics, AOPC 2024
Y2 - 23 July 2024 through 26 July 2024
ER -