关于黄疸光疗仪光源光谱的研究

Study on Light Source Spectrum of Jaundice Phototherapy Apparatus

摘要: 为更好地利用光能和提高光疗法治疗新生儿黄疸病及降解胆红素的速率，以人体皮肤为基础建立光学模型，使用波长为380~700 nm的可见光作为对象，通过皮肤各层的消光光谱的叠加得到最终的目标光谱，作为黄疸光疗仪的光源光谱。文章分析计算皮肤各层组织对光的吸收、散射作用而得出的目标光谱，可以使其在穿过皮肤组织到达胆红素所处层面时的光谱，与胆红素吸收谱相合，更大程度上减少了光功率的使用及光照射时间以降低光疗对新生儿的副作用，从而达到更好的治疗效果。

Abstract: We establish an optical model of human skin to more effectively employ light energy when using phototherapy to treat neonatal jaundice and increase the rate of bilirubin degradation during this therapy. We superimposed 380~700 nm of the visible light spectrum over the extinction spectrum of skin layers to obtain the final target spectrum for use in jaundice phototherapy. This article calculates and analyzes the effect of the layers of human skin on the absorption and scattering of light to determine the necessary spectral range of light for treating bilirubin with phototherapy. The optical power and irradiation time required are considerably decreased using the proposed spectrum, which reduce the side effects of phototherapy on newborn and achieve a stronger therapeutic effect.