Flexible delivery of Er:YAG radiation at 2.94 μm with negative curvature silica glass fibers: A new solution for minimally invasive surgical procedures

A. Urich; R.R.J. Maier; F. Yu; Jonathan C Knight; D.P. Hand; J.D. Shephard

doi:10.1364/BOE.4.000193

Flexible delivery of Er:YAG radiation at 2.94 μm with negative curvature silica glass fibers: A new solution for minimally invasive surgical procedures

A. Urich, R.R.J. Maier, F. Yu, Jonathan C Knight, D.P. Hand, J.D. Shephard

Heriot-Watt University

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Abstract

We present the delivery of high energy microsecond pulses through a hollow-core negative-curvature fiber at 2.94 μm. The energy densities delivered far exceed those required for biological tissue manipulation and are of the order of 2300 J/cm2. Tissue ablation was demonstrated on hard and soft tissue in dry and aqueous conditions with no detrimental effects to the fiber or catastrophic damage to the end facets. The energy is guided in a well confined single mode allowing for a small and controllable focused spot delivered flexibly to the point of operation. Hence,a mechanically and chemically robust alternative to the existing Er:YAG delivery systems is proposed which paves the way for new routes for minimally invasive surgical laser procedures.

Original language	English
Pages (from-to)	193-205
Number of pages	13
Journal	Biomedical Optics Express
Volume	4
Issue number	2
Early online date	21 Dec 2012
DOIs	https://doi.org/10.1364/BOE.4.000193
Publication status	Published - Feb 2013

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10.1364/BOE.4.000193

Boe 4 2 193
This paper was published in Biomedical Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/BOE.4.000193 . Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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abstract = "We present the delivery of high energy microsecond pulses through a hollow-core negative-curvature fiber at 2.94 μm. The energy densities delivered far exceed those required for biological tissue manipulation and are of the order of 2300 J/cm2. Tissue ablation was demonstrated on hard and soft tissue in dry and aqueous conditions with no detrimental effects to the fiber or catastrophic damage to the end facets. The energy is guided in a well confined single mode allowing for a small and controllable focused spot delivered flexibly to the point of operation. Hence,a mechanically and chemically robust alternative to the existing Er:YAG delivery systems is proposed which paves the way for new routes for minimally invasive surgical laser procedures.",

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Flexible delivery of Er:YAG radiation at 2.94 μm with negative curvature silica glass fibers: A new solution for minimally invasive surgical procedures

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Flexible delivery of Er:YAG radiation at 2.94 μm with negative curvature silica glass fibers: A new solution for minimally invasive surgical procedures

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