Laboratory study of the mechanism of sustained relation low heat resulting in deep burn

doi:10.3969/j.issn.1004-437X.2001.02.002

Abstract：Objective：To study the mechanism of deep burn resulting from the sustained relation heat p ut on the surface of the body continuously.Methods：We have made an animal model by anaethetizing a mouse after defuring and putting on an aluminium plate in a electrothermal thermosta ctic water tank for low temperature baking. Results：From the experiment we discover① the temperature unde r the skin of the animal model rises when the continuous baking time increases.T he coordinate chart tallies with parabola low and its character tallies with the coordination method of index chart.The early stage is the rapid increase period of the temperature under the skin.The temperature difference is up to 50 to 65 per cent after 10 minutes.② the specific gravity of the animal model’s whole s kin tallies with irregular double chart and these chart according to the baking time.It suggests that the change low is influenced by both the heat source tempe rature and the body circulation system change.③ pathologic examination discover that animal model’s whole skin has notable edema,the blood capillaries expand ,bleed,block,denature and necrose. Conclusion: From the above we can conclude that the reason of th is kind of deep burn is ① heat conduction make the temperature under the skin r ises in a rapid increase period,which is the initial factor resulting in deep bu rn.② the increase of the capillary’s penetrance,the edema of the whole skin an d tissue denaturation are the secondary factor.