20 March 2013 High speed miniature motorized endoscopic probe for 3D optical frequency domain imaging
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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.
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Jianan Li, Jianan Li, Fabio Feroldi, Fabio Feroldi, Jianhua Mo, Jianhua Mo, Frank Helderman, Frank Helderman, Mattijs de Groot, Mattijs de Groot, Johannes F. de Boer, 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); doi: 10.1117/12.2007055; https://doi.org/10.1117/12.2007055

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