Novel technology platform for PBM delivery using printed LEDs

Chris Castel; Dawn Castel; Tony Wei

doi:10.1117/12.2508729

7 March 2019 Novel technology platform for PBM delivery using printed LEDs

Chris Castel, Dawn Castel, Tony Wei

Proceedings Volume 10861, Mechanisms of Photobiomodulation Therapy XIV; 108610D (2019) https://doi.org/10.1117/12.2508729
Event: SPIE BiOS, 2019, San Francisco, California, United States

Abstract

Photobiomodulation Therapy offers the potential to reduce post-operative and acute injury pain and inflammation and accelerate healing which has been demonstrated in the literature and through our clinical trials. One of the barriers to its widespread use has been the availability of a simple to use hands free portable light delivery system which conforms to the tissue surface and delivers appropriate levels of irradiance without excessive heat. Our team focused on the development of new roll-to-roll printed micro LED technology in combination with a cadmium-free quantum dot film to provide a combination of 450 nm blue and red 640 nm light in a flexible light bandage. The micro LEDs are printed on 125 micron film and laminated to a flexible Printed Circuit and CFQD layer. A transparent hydrogel acts as a light pipe and adhesive to hold the flexible light source to the tissue to be treated. The light patch is powered by a small Bluetooth enabled controller module making it a hands free, wire free wearable system. The patch may be placed over a transparent film dressing when used post-surgically or placed directly over intact skin over the area of soft tissue injury. Printed LED light patches in sizes ranging from 25 to 70 cm2 have been successfully developed at irradiance levels of 9 mW/cm2 in pulsed modes at 33% DF. These highly flexible light sources closely couple light to the treatment site using optical matching layers designed to optimize optical transmission to the tissue.

Conference Presentation

Citation Download Citation

Chris Castel, Dawn Castel, and Tony Wei "Novel technology platform for PBM delivery using printed LEDs", Proc. SPIE 10861, Mechanisms of Photobiomodulation Therapy XIV, 108610D (7 March 2019); https://doi.org/10.1117/12.2508729

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