三种二氧化碳激光在软组织中的切口特性及热效应
Incision properties and thermal effects of three CO2 lasers in soft tissue.
作者信息
Wilder-Smith P, Arrastia A M, Liaw L H, Berns M
机构信息
Beckman Laser Institute and Medical Clinic, University of California, Irvine, USA.
出版信息
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1995 Jun;79(6):685-91. doi: 10.1016/s1079-2104(05)80300-2.
OBJECTIVES
It was the aim of this study to determine thermal and histologic events resulting from soft tissue incision with three CO2 lasers: one emitting light energy via a hollow waveguide at 9.3 microns; the others emitting light energy at 10.6 microns, one via a hollow waveguide, the other through an articulated arm delivery system.
STUDY DESIGN
Thirty standardized incisions were made in the oral mucosa of pig's mandibles with three different lasers at actual power levels of 1, 4 and 12 W. Thermal events were recorded with thermocouples, and a histologic examination was performed to determine vertical and horizontal tissue damage as well as incision depth and width.
RESULTS
Thermal and histologic results were related to parameters and beam characteristics rather than wavelength.
CONCLUSION
In addition to wavelength, many variables can contribute to the surgical characteristics of a laser.
目的
本研究旨在确定使用三种二氧化碳激光进行软组织切割所产生的热学和组织学变化：一种通过9.3微米的中空波导发射光能；另外两种在10.6微米发射光能，一种通过中空波导，另一种通过关节臂传输系统。
研究设计
使用三种不同的激光，在猪下颌骨的口腔黏膜上进行30次标准化切口，实际功率水平分别为1瓦、4瓦和12瓦。用热电偶记录热学变化，并进行组织学检查以确定垂直和水平方向的组织损伤以及切口深度和宽度。
结果
热学和组织学结果与参数及光束特性有关，而非波长。
结论
除波长外，许多变量可影响激光的手术特性。
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