title: High speed miniature motorized endoscopic probe for optical frequency domain imaging.
abstract: We present a miniature motorized endoscopic probe for Optical Coherence Tomography 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 to acquire images from ex vivo pig lung tissue through the working channel of a human bronchoscope.
authors.affiliation: Institute for Lasers, Life and Biophotonics Amsterdam, Department of Physics and Astronomy, VU University Amsterdam, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands.
authors.forename: Jianan
authors.initials: J
authors.lastname: Li
authors.forename: Mattijs
authors.initials: M
authors.lastname: de Groot
authors.forename: Frank
authors.initials: F
authors.lastname: Helderman
authors.forename: Jianhua
authors.initials: J
authors.lastname: Mo
authors.forename: Johannes M A
authors.initials: JM
authors.lastname: Daniels
authors.forename: Katrien
authors.initials: K
authors.lastname: Grünberg
authors.forename: Tom G
authors.initials: TG
authors.lastname: Sutedja
authors.forename: Johannes F
authors.initials: JF
authors.lastname: de Boer
mesh_terms: D057785:Catheters; D003952:Diagnostic Imaging / Q000295:instrumentation*; D004724:Endoscopy / Q000295:instrumentation*; D006801:Humans; D008904:Miniaturization / Q000295:instrumentation*; D055620:Optical Phenomena; D012399:Rotation