Search Menu
Photonics Media Photonics Marketplace Photonics Spectra BioPhotonics EuroPhotonics Vision Spectra Photonics Showcase Photonics ProdSpec Photonics Handbook

Reducing Collateral Damage From Laser Ablation

Facebook Twitter LinkedIn Email
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).
Feb 2017
laser ablation
The removal of material from a surface by high intensity pulsed or CW laser radiation emission.
Research & TechnologyEuropeeducationlaserslaser ablation

view all
Search more than 4000 manufacturers and suppliers of photonics products and services worldwide:

back to top
Facebook Twitter Instagram LinkedIn YouTube RSS
©2022 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA, [email protected]

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.