PMID: 9543524Apr 16, 1998Paper

Total radiated power, infrared output, and heat generation by cold light sources at the distal end of endoscopes and fiber optic bundle of light cables

Surgical Endoscopy
C HensmanA Cuschieri

Abstract

Skin burns and ignition of drapes have been reported with the use of cold light sources. The aim of the study was to document the temperature generated by cold light sources and to correlate this with the total radiated power and infrared output. The temperature, total radiated power, and infrared output were measured as a function of time at the end of the endoscope (which is inserted into the operative field) and the end of the fiber optic bundle of the light cable (which connects the cable to the light port of the endoscope) using halogen and xenon light sources. The highest temperature recorded at the end of the endoscope was 95 degrees C. The temperature measured at the optical fiber location of the endoscope was higher than at its lens surface (p < 0.0001). At the end of the fiber optic bundle of light cables, the temperature reached 225 degrees C within 15 s. The temperature recorded at the optical fiber location of all endoscopes and light cables studied rose significantly over a period of 10 min to reach its maximum (p <0.0001) and then leveled off for the duration of the study (30 min). The infrared output accounted only for 10% of the total radiated power. High temperatures are reached by 10 min at the end of fiber o...Continue Reading

Citations

Mar 3, 2007·Surgical Endoscopy·Walter J A BrokelmanMichael M P J Reijnen
Oct 19, 2007·The Journal of Laryngology and Otology·S A C MacKeithD D Pothier
Jun 3, 2015·Clinical Otolaryngology : Official Journal of ENT-UK ; Official Journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery·R DundarF K Soy
Oct 24, 2006·The Journal of Surgical Research·Walter J A BrokelmanMichael M P J Reijnen
Jul 14, 2010·ANZ Journal of Surgery·Philip HammondVipul Upadhyay
Sep 29, 2011·Surgical Innovation·Neil T ClancyDaniel S Elson
Jul 22, 2014·International Forum of Allergy & Rhinology·John Craig, Parul Goyal
Jan 29, 2011·The Laryngoscope·Jeffrey J Nelson, Parul Goyal
Nov 30, 2019·American Journal of Rhinology & Allergy·Trevor LewisDoron D Sommer
Aug 25, 2016·Optics Express·Junfei ShenZhenrong Zheng
Jul 15, 2020·Chemical Reviews·Mihyun LeeMarcy Zenobi-Wong

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