Coagulation of egg white by thermal feedback controlled CO2 laser

Inci Çilesiz; Abraham Katzir

doi:10.1117/12.409319

Coagulation of egg white by thermal feedback controlled CO₂ laser

Inci Çilesiz, Abraham Katzir

Department of Electronics and Communication Engineering

Tel Aviv University

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Temperature feedback control during laser-assisted tissue coagulation was investigated and demonstrated using the egg white model. Dynamics of photothermal denaturation during CO₂ laser irradiation was observed by simultaneously controlling surface temperature and monitoring HeNe laser transmission of egg white samples. Once a quasi-constant surface temperature was established, transmission of egg white tended to decrease linearly with time. A first order rate process was observed. Our experiments demonstrated that thermal feedback can effectively control/limit photothermal damage.

Original language	English
Pages (from-to)	18-27
Number of pages	10
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4161
DOIs	https://doi.org/10.1117/12.409319
Publication status	Published - 2000

Keywords

Coagulation
Egg white
IR radiometry
Laser-tissue interaction
Rate process
Thermal damage
Thermal feedback
Thermal lensing
Tissue optics

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title = "Coagulation of egg white by thermal feedback controlled CO2 laser",

abstract = "Temperature feedback control during laser-assisted tissue coagulation was investigated and demonstrated using the egg white model. Dynamics of photothermal denaturation during CO2 laser irradiation was observed by simultaneously controlling surface temperature and monitoring HeNe laser transmission of egg white samples. Once a quasi-constant surface temperature was established, transmission of egg white tended to decrease linearly with time. A first order rate process was observed. Our experiments demonstrated that thermal feedback can effectively control/limit photothermal damage.",

keywords = "Coagulation, Egg white, IR radiometry, Laser-tissue interaction, Rate process, Thermal damage, Thermal feedback, Thermal lensing, Tissue optics",

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AU - Katzir, Abraham

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AB - Temperature feedback control during laser-assisted tissue coagulation was investigated and demonstrated using the egg white model. Dynamics of photothermal denaturation during CO2 laser irradiation was observed by simultaneously controlling surface temperature and monitoring HeNe laser transmission of egg white samples. Once a quasi-constant surface temperature was established, transmission of egg white tended to decrease linearly with time. A first order rate process was observed. Our experiments demonstrated that thermal feedback can effectively control/limit photothermal damage.

KW - Coagulation

KW - Egg white

KW - IR radiometry

KW - Laser-tissue interaction

KW - Rate process

KW - Thermal damage

KW - Thermal feedback

KW - Thermal lensing

KW - Tissue optics

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M3 - Article

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EP - 27

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

ER -

Coagulation of egg white by thermal feedback controlled CO₂ laser

Abstract

Keywords

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