Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
Email Facebook Twitter Google+ LinkedIn Comments

Reducing Collateral Damage From Laser Ablation
Feb 2017
KAZAN, Russia, Feb. 27, 2017 — Laser ablation for varicose veins, while an effective and minimally invasive technique, can cause collateral damage to the surrounding healthy tissue due to the high output power of the laser. It is therefore important to optimize the laser characteristics so that the healthy tissue receives minimal damage.

Kazan Federal University, Endovenous Laser Ablation
Experimental device for simulation of endovenous laser ablation. Courtesy of Kazan Federal University.

Researchers from Kazan Federal University and Ogarev Mordovia State University conducted experiments on endovenous laser ablation of varicose veins in vitro using laser radiation of a solid-state laser based on the crystal LiYF4:Tm, with a wavelength of 1.885 µm and power output of around 3 W. They performed an experimental series with saline solution and red blood cell (RBC) suspension in the venous lumen to identify the impact of a heated carbonized layer precipitated on the fiber end face versus the efficiency of endovenous laser ablation (EVLA). Results of the experiments confirmed that the presence of a heated carbonized layer on the fiber end face increased the efficiency of EVLA.

The researchers plan to further refine the experimental process. Specifically, they plan to use radial emitting fibers to minimize the possibility of vein perforations. They also plan to modify the experimental device so as to provide experimental conditions that more closely approximate the conditions of “real-life” endovenous laser ablation.

The research was published in Lasers in Medical Science (doi: 10.1007/s10103-016-1877-z).

laser ablation
The removal of material from a surface by high intensity pulsed or CW laser radiation emission.
Research & TechnologyEuropeeducationlaserslaser ablation

Terms & Conditions Privacy Policy About Us Contact Us
back to top
Facebook Twitter Instagram LinkedIn YouTube RSS
©2018 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA,

Photonics Media, Laurin Publishing
x We deliver – right to your inbox. Subscribe FREE to our newsletters.
We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.