High speed miniature motorized endoscopic probe for 3D optical frequency domain imaging

Jianan Li; Fabio Feroldi; Jianhua Mo; Frank Helderman; Mattijs de Groot; Johannes F. de Boer

doi:10.1117/12.2007055

20 March 2013 High speed miniature motorized endoscopic probe for 3D optical frequency domain imaging

Jianan Li, Fabio Feroldi, Jianhua Mo, Frank Helderman, Mattijs de Groot, Johannes F. de Boer

Proceedings Volume 8571, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVII; 85710P (2013) https://doi.org/10.1117/12.2007055
Event: SPIE BiOS, 2013, San Francisco, California, United States

Abstract

We present a miniature motorized endoscopic probe for Optical Frequency Domain Imaging with an outer diameter of 1.65 mm and a rotation speed of 3,000 – 12,500 rpm. This is the smallest motorized high speed OCT probe to our knowledge. The probe has a motorized distal end which provides a significant advantage over proximally driven probes since it does not require a drive shaft to transfer the rotational torque to the distal end of the probe and functions without a fiber rotary junction. The probe has a focal Full Width at Half Maximum of 9.6 μm and a working distance of 0.47 mm. We analyzed the non-uniform rotation distortion and found a location fluctuation of only 1.87° in repeated measurements of the same object. The probe was integrated in a high-speed Optical Frequency Domain Imaging setup at 1310 nm We demonstrated its performance with imaging ex vivo pig bronchial and in vivo goat lung.

Citation Download Citation

Jianan Li, Fabio Feroldi, Jianhua Mo, Frank Helderman, Mattijs de Groot, and Johannes F. de Boer "High speed miniature motorized endoscopic probe for 3D optical frequency domain imaging", Proc. SPIE 8571, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVII, 85710P (20 March 2013); https://doi.org/10.1117/12.2007055

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