Comparison of different focusing fiber tips for improved oral diode laser surgery

Stock, Karl; Stegmayer, Thomas; Graser, Rainer; Förster, Wolfram; Hibst, Raimund

doi:10.1002/lsm.22091

Cited by 22 publications

(17 citation statements)

References 11 publications

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“…: 580 AE 294 mm. 5 An important time aspect of the process under consideration is the time during which the laser radiation directly heats any given tissue site. This time is de¯ned as t ¼ d=v, where d is the¯ber diameter and v is the cutting speed.…”

Section: Discussionmentioning

confidence: 99%

“…[1][2][3][4] To optimize the conditions of exposure, various special¯ber tips have been used. Some of them increase the power density due to radiation focusing, 5 others, e.g., sapphire tips, 6 have better thermal di®usivity. There have also been reports 7 on a device for intratissue irradiation, in which tips with mirrored metal elements at the distal end de-°e ct the light beam at the¯ber output into a cylindrical pattern in order to protect healthy tissues.…”

Section: Introductionmentioning

confidence: 99%

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The influence on biotissue laser resection of a strongly absorbing layer at the optical fiber tip

Kuznetsova

Elagin

Karabut

et al. 2016

J. Innov. Opt. Health Sci.

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In this paper, we consider a method of laser resection using the silica glass core from which the cladding layer has been removed as the cutting part of a laser scalpel. An absorbing layer coating the silica¯ber tip markedly alters its biotissue cutting characteristics. The results of histological studies of skin after exposure to a laser scalpel with and without a strongly absorbing coating (SAC) at a wavelength of 0.97 m show that resection using a coated scalpel is more sparing. When an uncoated scalpel was used, skin injury was more apparent in both its surface spread and the depth of structural damage, resulting in poorer tissue regeneration.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The influence on biotissue laser resection of a strongly absorbing layer at the optical fiber tip

Kuznetsova

Elagin

Karabut

et al. 2016

J. Innov. Opt. Health Sci.

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show abstract

“…The basis of endovenous laser ablation (EVLA) is treatment of venous insufficiency by eliminating the great saphenous vein (GSV) using laser energy [10], [11]. There are various reports about using bare [12]- [14] and radial optical fiber deflectors [8], [15]. Even though both fiber deflectors could be used for EVLA; however, the efficiency and the effectiveness of these deflectors is an issue in terms of postoperative pain and bruising [10].…”

Section: Introductionmentioning

confidence: 99%

Double Ring Firing Single Optical Fiber Deflector

Seymen

Şimşek

Özgür

et al. 2019

IEEE Photon. Technol. Lett.

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We report a novel fabrication method of double ring firing single optical fiber deflector. The fiber deflector is fabricated as a convergent cone having two different cone angles, by conventional mechanical polishing. The two-angled conical fiber deflector geometry is formed in a single fiber tip, deflecting incoming laser light into two distinct circular rings. Two cone angles provide two deflection angles due to total internal reflection and refraction of the incoming laser light. We achieved two deflected circular beams at 60°and 85°with the cone angles of 56°and 72°at one single fiber deflector. The laser power is evenly split between two conical areas. The fabrication process of the fiber deflector does not involve any splicing or arc discharge process; thus, it is convenient, effective, and high-throughput.

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“…In recent years, the progress in laser surgery has been mainly associated with the approbation of newly created laser sources [1][2][3] and the use of novel focusing elements [4] or coatings [5][6][7]. The effect of the laser radiation on a biological tissue has been theoretically considered in Refs [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Model for indirect laser surgery

Sapogova

Bredikhin

Bityurin

et al. 2016

Biomed. Opt. Express

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Abstract:We present a theoretical model for laser cutting of biological tissue by a strongly heated fiber tip with a highly absorbing coating. A significant dependence of the cutting speed and cutting depth on the inclination angle of the scalpel to the surface when scattering exceeds absorption in the biological tissue is shown. Experimental evidences of this effect are presented. In the experiment, we used silica fiber with coating made of carbon and silicon organic varnish, the 0.97-µm wavelength laser and porcine skin. The additional opportunity to increase the efficiency of cutting by deposition of the absorbing layer on the tissue surface is considered.

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Comparison of different focusing fiber tips for improved oral diode laser surgery

Abstract: In conclusion the results of our study show that cutting quality and efficiency of diode laser on soft tissue can be significantly improved using conically shaped fiber tips.

Cited by 22 publications

References 11 publications

The influence on biotissue laser resection of a strongly absorbing layer at the optical fiber tip

The influence on biotissue laser resection of a strongly absorbing layer at the optical fiber tip

Double Ring Firing Single Optical Fiber Deflector

Model for indirect laser surgery

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