Steering light in fiber-optic medical devices

Steering light in fiber-optic medical devices: a patent review

Losch, M.S. (TU Delft Medical Instruments & Bio-Inspired Technology)
Kardux, Famke (Student TU Delft)
Dankelman, J. (TU Delft Medical Instruments & Bio-Inspired Technology)
Hendriks, B.H.W. (TU Delft Medical Instruments & Bio-Inspired Technology; Philips Research)

2022

Introduction: Steering light is relevant to many medical applications that require tissue illumination, sensing, or modification. To control the propagation direction of light beams, a great variety of innovative fiber-optic medical devices have been designed. Areas covered: This review provides a comprehensive overview of the patent literature on light beam control in fiber-optic medical devices. The Web of Science Derwent Innovation Index database was scanned, and 81 patents on fiber-optic devices published in the last 20 years (2001–2021) were retrieved and categorized based on the working principle to steer light (refraction/reflection, scattering, diffraction) and the design strategy that was employed (within fiber, at fiber end, outside fiber). Expert opinion: Patents describing medical devices were found for all categories, except for generating diffraction at the fiber end surface. The insight in the different designs reveals that there are still several opportunities to design innovative devices that can collect light at an angle off-axis, reduce the angular distribution of light, or split light into multiple beams.

Fiber optics
instrument design
light beam steering
medical devices
remote light collection
remote light delivery
tissue illumination
tissue modification
tissue sensing

http://resolver.tudelft.nl/uuid:bb5f2e4a-70e7-4655-991b-9901409e9748

https://doi.org/10.1080/17434440.2022.2054334

1743-4440

Expert Review of Medical Devices, 19 (3), 259-271

Institutional Repository

review

© 2022 M.S. Losch, Famke Kardux, J. Dankelman, B.H.W. Hendriks