Logo for University of Iowa Health Care This logo represents the University of Iowa Health Care
UIHC Conference Management of the Tinnitus & Hyperacusis Patient 8-11,12 2022Click Here

Blue Light Laser (445 nm wavelength) Video of Setup and Equipment

see: Blue Light Laser (445 nm wavelength) - Settings, Application, and Research

for specific settings in used for a laryngeal papilloma case see: Transnasal Laryngoscopy with Blue Light Laser (445 nm wavelength) - Case Example with Dosimetry, Equipment and Modified Operative Note

Publication addressing laser plume containment with negative pressure face shield: https://onlinelibrary.wiley.com/doi/full/10.1002/lio2.526

Use of (as of Sept-Nov 2021) the Blue Light (445 nm wavelength) Laser  (Wolf A.R.C.) depicted in this video

Video created 11-15-2021 Henry Hoffman MD (U of Iowa) with assistance from David Fletcher of Fletcher Medical Solutions 

with subsequent updates via multiple contributors.


specifications below (modified from: Wolf 2021 and FDA 2021)


Wolf 445 nm (Blue Light) Laser adapted  FDA (2021)

     Wolf TrueBlue A.R.C Laser website (2021)

Laser Type

Diodelaser (see explanation of 'diode laser')

Display Touchscreen

445 nm / 10 Watts

Pulse Length 1 millisec to 45 seconds / CW (continuous wave)
Pulse Pause

1 msec to 45 seconds

(note: pause of 333 msec = 3 pulses per second) 

Aiming Beam Green 532 nm - adjustable for intensity, size, continuous v flashing
Fibercoupling A.R.C. Laser U.C 2.0




FDA (U.S. Food & Drug Administration): 510(k) Summary - K192272 Wolf 445nm - approval to market dated March 17,2020-  <https://www.accessdata.fda.gov/cdrh_docs/pdf19/K192272.pdf> accessed Nov 7, 2021 

Wolf TrueBlue A.R.C Laser website “Technical Specifications" <https://www.arclaser.de/en/products/trublue/wolf-trublue/> accessed Nov 7, 2021

Nguyen DD, Pang J-Y, Madill C, and Novakovic D: Effects of 445-nm Laser on Vessels of Chick Chorioallantoic Membrane with Implications to Microlaryngeal Laser Surgery    Laryngoscope, 00:1-7, 2021

Karkos PD, Koskinas IS, Triaridis S, Constantinidis J. Lasers in Οtolaryngology: A Laser Odyssey From Carbon Dioxide to True Blue. Ear, Nose & Throat Journal. 2021;100(1_suppl):1S-3S. doi:10.1177/0145561320951681

BritaMed, Inc. The revolutionary WOLF TruBlue laser. November 19, 2018. https://www.slideshare.net/BritaMed/the-revolutionary-wolf-trublue-laser . Accessed September 7, 2021.

Hess MM, Fleischer S, Ernstberger M. New 445 nm blue laser for laryngeal surgery combines photoangiolytic and cutting properties. Eur Arch Otorhinolaryngol 2018;275:1557–1567.

Braun A, Berthold M, Frankenberger R. The 445-nm semiconductor laser in dentistry—introduction of a new wavelength. Quintessenz 2015;66:205–211

Lin RJ, Iakovlev V, Streutker C, Lee D, Al-Ali M, Anderson J. Blue Light Laser Results in Less Vocal Fold Scarring Compared to KTP Laser in Normal Rat Vocal Folds. Laryngoscope. 2021 Apr;131(4):853-858. doi: 10.1002/lary.28892. Epub 2020 Aug 4. PMID: 32750168.

Miller BJ, Abdelhamid A, Karagama Y. Applications of Office-Based 445 nm Blue Laser Transnasal Flexible Laser Surgery: A Case Series and Review of Practice. Ear, Nose & Throat Journal. 2021;100(1_suppl):105S-112S. doi:10.1177/0145561320960544