Abstract

In intravascular optical coherence tomography (OCT), the optical rotary junction plays an important role in rotating and pulling back the catheter to generate cross-sectional coronary artery images. To meet the requirements of high-speed intravascular OCT in a clinical setting, the rotary junction should generate high torque and low vibration. In this Letter, we demonstrate an ultrahigh speed optical rotary junction incorporating a hollow shaft brushless DC servomotor to remove a pulley belt, or a gear to minimize vibration noise and transfer stable torque. To evaluate the performance of the rotary junction, the vibration noise and variation of rotation were measured as a function of motor speed. The results showed that the rotary junction rotated the catheter at 42,000 revolutions per minute, with an optical transmission loss of 1.2 dB. To assess the feasibility of the rotary junction for high-speed catheter-based OCT, OCT imaging of the cylindrical shape of a phantom made by two overlapped plastic straws was performed at a rate of 200 frames/s.

© 2020 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
High speed miniature motorized endoscopic probe for optical frequency domain imaging

Jianan Li, Mattijs de Groot, Frank Helderman, Jianhua Mo, Johannes M. A. Daniels, Katrien Grünberg, Tom G. Sutedja, and Johannes F. de Boer
Opt. Express 20(22) 24132-24138 (2012)

Ultrahigh speed endoscopic optical coherence tomography using micromotor imaging catheter and VCSEL technology

Tsung-Han Tsai, Benjamin Potsaid, Yuankai K. Tao, Vijaysekhar Jayaraman, James Jiang, Peter J. S. Heim, Martin F. Kraus, Chao Zhou, Joachim Hornegger, Hiroshi Mashimo, Alex E. Cable, and James G. Fujimoto
Biomed. Opt. Express 4(7) 1119-1132 (2013)

Piezoelectric-transducer-based miniature catheter for ultrahigh-speed endoscopic optical coherence tomography

Tsung-Han Tsai, Benjamin Potsaid, Martin F. Kraus, Chao Zhou, Yuankai K. Tao, Joachim Hornegger, and James G. Fujimoto
Biomed. Opt. Express 2(8) 2438-2448 (2011)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription