LED时代的手术照明选择
Choosing surgical lighting in the LED era.
作者信息
Knulst Arjan J, Stassen Laurents P S, Grimbergen Cornelis A, Dankelman Jenny
机构信息
Department of BioMechanical Engineering, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Delft, Netherlands.
出版信息
Surg Innov. 2009 Dec;16(4):317-23. doi: 10.1177/1553350609353766. Epub 2009 Dec 22.
BACKGROUND
The aim of this study is to evaluate the illumination characteristics of LED lights objectively to ease the selection of surgical lighting.
METHODS
The illuminance distributions of 5 main and 4 auxiliary lights were measured in 8 clinically relevant scenarios. For each light and scenario, the maximum illuminance E(c) (klux) and the size of the light field d(10) (mm) were computed.
RESULTS
The results showed: that large variations for both E(c) (25-160 klux) and d(10) (109-300 mm) existed; that using auxiliary lights reduced both E(c) and d(10) by up to 80% and 30%; that with segmented lights, uneven light distributions occurred; and that with colored LED lights shadow edges on the surgical field became colored.
CONCLUSIONS
Objective illuminance measurements show a wide variation between lights and a superiority of main over auxiliary lights. Uneven light distributions and colored shadows indicate that LED lights still need to converge to an optimal design.
背景
本研究旨在客观评估LED灯的照明特性，以方便手术照明的选择。
方法
在8种临床相关场景中测量了5个主灯和4个辅助灯的照度分布。对于每种灯和场景，计算了最大照度E(c)（千勒克斯）和光场大小d(10)（毫米）。
结果
结果显示：E(c)（25 - 160千勒克斯）和d(10)（109 - 300毫米）均存在较大差异；使用辅助灯会使E(c)和d(10)分别降低多达80%和30%；使用分段灯时，会出现光照分布不均匀的情况；使用彩色LED灯时，手术视野上的阴影边缘会变色。
结论
客观照度测量表明，不同灯具之间存在很大差异，主灯优于辅助灯。光照分布不均匀和彩色阴影表明，LED灯仍需朝着优化设计方向发展。
Zotero 插件