Abstract
A novel endoscopic optical coherence tomography probe was designed and constructed with a 1.9-mm microelectromechanical system (MEMS) motor. The new MEMS endoscopic probe design eliminates the need to couple the rotational energy from the proximal to the distal end of the probe. Furthermore, the endoscopic probe's sheath and fiber have the advantages of having a much smaller diameter and being more flexible than traditional endoscopes since no reinforcement is needed to couple the rotational torque. At the distal end, a prism mounted on a micromotor deflects the light rays to create a transverse circular-scanning pathway. Because our MEMS scanner does not require the coupling of a rotational single-mode fiber, a high scanning speed is possible while eliminating unstable optical signals caused by nonuniform coupling.
Highlights
Optical coherence tomography (OCT) is a noninvasive, noncontact imaging modality for cross-sectional imaging of biological tissue with micrometer-scale resolution.[1]
Endoscopic probes with microelectromechanical system (MEMS) technology for linear scans have been demonstrated by several groups.[5,6]
We describe the development of a novel radial-scanning MEMS probe and present preliminary test results for in vitro and in vivo imaging based on a rotational MEMS probe
Summary
Optical coherence tomography (OCT) is a noninvasive, noncontact imaging modality for cross-sectional imaging of biological tissue with micrometer-scale resolution.[1]. Title In vivo endoscopic optical coherence tomography by use of a rotational microelectromechanical system probe. In vivo endoscopic optical coherence tomography by use of a rotational microelectromechanical system probe
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