Wound healing studies of skin incisions in animal models: laser soldering versus other bonding methods

David Simhon M.D.; Tamar Vasilyev; Tamar Brosh; Zvi Nevo; Tamar Tennenbaum; Naam Kariv; Abraham Katzir

doi:10.1117/12.485284

12 September 2003 Wound healing studies of skin incisions in animal models: laser soldering versus other bonding methods

David Simhon M.D., Tamar Vasilyev, Tamar Brosh, Zvi Nevo, Tamar Tennenbaum, Naam Kariv, Abraham Katzir

Author Affiliations +

Proceedings Volume 4949, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XIII; (2003) https://doi.org/10.1117/12.485284
Event: Biomedical Optics, 2003, San Jose, CA, United States

Abstract

In the past, we have successfully used laser soldering for bonding cuts in the skin of medium and large size animal models. In this work, we have used the same method for bonding cuts on the backs of rabbits and mature pigs model. Cuts were created in dorsally depilated skins of rabbits and mature pigs. 47% bovine serum albumin (BSA) solder was applied onto the approximated edges of each cut, using a special approximation device. An infrared fiberoptic CO₂ laser system was used to heat a spot on the cut, under good temperature control, to 65°C for 10 seconds. Other glued or sutured cuts, served as controls. Immediate tensile strength measurements were done on bonded incisions in rabbit skins. We found that laser soldered incisions exhibited similar strength to one bonded by cayanoacrylate glue. No dehiscence of wound edges was found in both treatments. The laser soldering procedure was 25% faster then suturing. A 14-day follow up of the bonded pig skin incisions was carried out, using punch biopsies. We found better aesthetic appearance of the soldered incisions. We observed better and faster wound repair in the laser-soldered scars, using histological and molecular staining. The temperature controlled laser soldering offers immediate strength similar to that of cyanoacrylate glues and better aesthetic and wound healing properties, in comparison to suturing techniques. We have clearly demonstrated the potential of this novel technique, which will pave thw way for clinical studies.

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David Simhon M.D., Tamar Vasilyev, Tamar Brosh, Zvi Nevo, Tamar Tennenbaum, Naam Kariv, and Abraham Katzir "Wound healing studies of skin incisions in animal models: laser soldering versus other bonding methods", Proc. SPIE 4949, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XIII, (12 September 2003); https://doi.org/10.1117/12.485284

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KEYWORDS

Laser welding

Skin

Tissues

Laser bonding

Wound healing

Animal model studies

Gas lasers

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