ANALYSIS OF LASER INDUCED SKIN BURNS BY A DAMAGE INTEGRAL MODEL
ARMY MEDICAL RESEARCH LAB FORT KNOX KY
Pagination or Media Count:
An analysis of experimental data defining the threshold values of irradiance as a function of exposure time to CO2 laser radiation to induce uniform full thickness epithelial burns demonstrated that within the exposure time range of 0.2 to 5 sec the data are accurately described by the damage integral model. For times in excess of 5 sec the values predicted by the model were higher than those determined experimentally. The validity of the time- temperature relations in the epidermis predicted by the opaque semi-infinite thermal model and the thermal constants for porcine skin need to be determined and the model and constants modified if necessary. Additional experiments to determine damage thresholds at various depths are needed to extend the use of the model in predicting more levels of damage. Such experiments would also permit further evaluation of some of the assumptions inherent in the model.
- Medicine and Medical Research