A5072387425- Laser Design and Applications
- Diagnosis and Treatment of Venous Diseases
- Laser Applications in Dentistry and Medicine
- Solid State Laser Technologies
- Venous Thromboembolism Diagnosis and Management
- Thermoregulation and physiological responses
- Dermatologic Treatments and Research
- Kidney Stones and Urolithiasis Treatments
- Laser-induced spectroscopy and plasma
- Nuclear Physics and Applications
- Laser Material Processing Techniques
- Medical History and Innovations
- Ocular and Laser Science Research
- Geomagnetism and Paleomagnetism Studies
- Electric Power Systems and Control
- Diverticular Disease and Complications
- Ultrasound and Hyperthermia Applications
- Magnetic Field Sensors Techniques
- Optical and Acousto-Optic Technologies
- Characterization and Applications of Magnetic Nanoparticles
- Optical Imaging and Spectroscopy Techniques
- Chemical and Physical Studies
- Ear Surgery and Otitis Media
- Medical and Biological Sciences
- Myofascial pain diagnosis and treatment
Polyus Research Institute of M.F.Stelmakh (Russia)
2001-2024
National University of Science and Technology
2023
Institute of Radio-Engineering and Electronics
2020-2021
Murmansk State Technical University
2015
Institute of Laser Physics
2005
Institute for Physics and Power Engineering
1991-1995
Thulium fiber laser with a wavelength of 1.94 µm is widely used in urology for lithotripsy. This paper studies the mechanism lithotripsy and evaluates its clinical efficiency using superpulse thulium peak power 500 W. An experimental setup was developed to study The (TFL) W (FiberLase U2 from “IRE-POLUS” Ltd., Fryazino, Moscow Region, Russia) stone phantoms (BegoStone). processes were recorded high-speed camera. acoustic signals registered during studied wideband needle hydrophones. main...
We study the effects that occur in a physiological solution when laser radiation with wavelength of 1.94 μm and power 60 – 120 W is delivered into it through an optical fibre. It shown as result boiling liquid near fibre end, laser-induced hydrodynamic effect can be realised, which two-phase jet formed, consisting heated water vapour-gas bubbles propagating at speed ∼1 m s−1. This used medicine for dissecting biological tissues removing bladder tumour single unit, stricture ureter or...
Abstract We report the results of studying heat transfer in water heated by a cw laser with wavelengths 1.55 and 1.94 μm through optical fibres end-face radial outputs. It is shown that, depending on power wavelength radiation, implemented via convection, bubble boiling, or explosive boiling occurs asymmetrically, mainly forward − upward direction for fibre output output.
The article discusses the evolution of endovenous laser ablation technique for treatment varicose vein disease lower extremities. history studies aimed at improving is provided. authors described features with wavelengths from λ = 0.445 to 1.94 µm, alongside edge- and radial-emitting working fibers, as well fibers radiation absorption its distal end. physical biophysical mechanisms most popular to-date method outpatient extremities are reviewed. propagation process in scattering medium...
Background and Objective To examine the possibilities of laser thermoplasty whole costal cartilages for correction human congenital chest wall deformities. Study Design/Materials Methods Ex vivo samples porcine were heated with lasers differing wavelengths, including a 0.97‐μm diode laser, 1.56‐μm erbium‐doped quartz fiber 1.68‐μm Raman laser. The dynamics temperature fields degradation collagen in laser‐affected regions determined by using, respectively, thermometry, trypsin treatment,...
The in vitro dynamics of the change optical properties hyaline cartilage heated by fibre lasers at wavelengths 0.97 and 1.56 μm is studied. laser-induced bleaching (at μm) darkening cartilage, caused heating transport water as well a matrix, were observed These effects should be taken into account while estimating depth tissue. investigated light scattering allows one to choose optimum radiation dose for laser plastic surgery tissues.
This work examines laser radiation absorption in water and blood at the wavelengths that are used endovenous treatment (EVLT): 0.81–1.06, 1.32, 1.47, 1.5 1.56 μm. It is shown best EVLT conditions ensured by 1.56-μm radiation. Analysis of published data suggests even higher efficacy may be achieved 1.68 1.7
High-power semiconductor lasers and diode-pumped are considered whose development qualitatively improved the characteristics of laser apparatus for surgery force therapy, extended scope their applications in clinical practice, enhanced efficiency medical treatment based on use these lasers. The domestic presented properties related to emission wavelength used them discussed. Examples modern technologies considered.
The characteristics and possible applications of scalpels based on diode fibre lasers emitting at 0.97, 1.06, 1.56, 1.9 μm, which are produced developed by the IRE-Polyus Co., presented. advantages such devices possibilities for increasing their output power extending spectral range shown.
A theoretical investigation is made of the amplification in a transverse-flow CO2 laser. It shown that energy efficiency laser system with multipass amplifier may be higher than under oscillation conditions.
A few new low invasive fiber laser technologies for treatment of 1) capillary malformations (port-wine stains), 2) venous, arterial, and arteriovenous malformations, 3) lymphatic 3 types: micro, small large-cystic lymphangiomas are presented in this work. There were applied 1.56 μm distant photocoagulation, endovascular thermotherapy, 1.9 instant ablation, interstitial excision. The to about 300 patients. Good clinical esthetic results have been achieved great majority cases.
We present a study showing advantages of EVLT at 1.56 μm wavelength in comparison with 0.97 μm. In particular, the water and blood absorption give better conditions than 0.81-1.5
There are considered characteristics of the laser medical devices working at wavelengths 1.94; 2.01 and 2.1 µm, which used in urology for surgical operations. It is shown that unlike action air environment, section biotissue water environment (physiological solution) performed by steam-gas stream formed as a result superintensive boiling thin (about 0.1 mm) liquid layer absorbed radiation. Coagulation biotissue, adjacent to section, happens due heat produced via vapor condensation.
The article presents a review on laser medical equipment and technologies developed for this which have appeared the last ten years.
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