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Temperature controlled burn generation system based on a CO2 laser and a silver halide fiber optic radiometer
Meir Cohen1, Avi Ravid, Vered Scharf
1Schneider Children's Medical Center of Israel, Department of Plastic Surgery and Burn Unit, Rabin Medical Center, Beilinson Campus, Tel-Aviv University, Tel-Aviv, Israel. drcohen@netvision.net.il
Lasers in Surgery and Medicine
|May 27, 2003
Summary
A new CO2 laser system reliably generates precise partial and full thickness burns in rats. This burn generation method allows for consistent depth control, crucial for experimental burn care research.
Area of Science:
- Biomedical Engineering
- Dermatology Research
- Animal Models in Medicine
Background:
- Reliable burn generation systems are critical for experimental animal studies.
- Current systems often fail to produce precise partial thickness burns, hindering research into burn care.
- Developing a method for fixed-depth burn generation is essential.
Purpose of the Study:
- To develop a CO2 laser-based system for generating burns with controlled, fixed depths.
- To establish a reproducible method for creating experimental burns in animal models.
Main Methods:
- A CO2 laser burn generation device integrated with a temperature sensing and control system was developed.
- Constant skin surface temperature was maintained during burn generation.
- 138 spot burns were created on Wistar rat skin at 70°C for 5-60 seconds, followed by histological evaluation.
Main Results:
- A strong linear correlation (r=0.93) was observed between exposure duration and burn depth.
- The relationship is described by the equation: burn depth (mm) = 0.012 × duration (s).
Conclusions:
- The fiber-optic-controlled laser system provides a reliable method for generating both partial and full thickness skin burns in rats.
- This system offers precise depth control for experimental burn research.