Special Section on Optical Imaging, Sensing, and Light Interactions in Cells and Tissues

Bonding surgical incisions using a temperature-controlled laser system based on a single infrared fiber

[+] Author Affiliations
Ilan Gabay, Abraham Katzir

Tel Aviv University, School of Physics and Astronomy, Tel Aviv 69978, Israel

Irina Barequet, Mordechai Rosner

Tel Aviv University, Goldschleger Eye Institute, Sheba Medical Center, Sackler School of Medicine, Tel Aviv 52621, Israel

David Varssano

Tel Aviv University, Department of Ophthalmology, Tel Aviv Sourasky Medical Center, Sackler School of Medicine Tel Aviv 64239, Israel

J. Biomed. Opt. 18(11), 111416 (Sep 20, 2013). doi:10.1117/1.JBO.18.11.111416
History: Received April 10, 2013; Revised August 19, 2013; Accepted August 22, 2013
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Abstract.  Although there has been great interest in laser heating for bonding of surgical incisions in tissues, it has not gained wide acceptance by surgeons. We argue that the main obstacle has been the lack of temperature control, which may lead to a weak bonding. We previously developed a laser bonding system based on two infrared transmitting AgBrCl fibers, one for laser heating and one for temperature control. In view of the inherent limitations of such systems observed in many animal experiments, we developed an improved system based on a single infrared fiber. Besides the decreased dimensions, this system offers many advantages over the two-fiber system. It is less sensitive to accuracy of height and tilt of the fiber distal tip above the tissue, ensuring more accurate heating that can potentially lead to stronger bonding with minimal thermal damage. The system is successfully tested in the soldering of 15 corneal incisions, ex vivo. Histopathology shows little thermal damage and good wound apposition. The average burst pressure is 100±30mmHg. These findings indicate the usefulness of the system for ophthalmic surgery as well as other surgical procedures, including endoscopic and robotic surgery.

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© 2013 Society of Photo-Optical Instrumentation Engineers

Citation

Ilan Gabay ; Irina Barequet ; David Varssano ; Mordechai Rosner and Abraham Katzir
"Bonding surgical incisions using a temperature-controlled laser system based on a single infrared fiber", J. Biomed. Opt. 18(11), 111416 (Sep 20, 2013). ; http://dx.doi.org/10.1117/1.JBO.18.11.111416


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