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激光光束强度配置对激光骨切除术中深骨切除的影响
Mingyi Liu1, Arsham Hamidi2, Dunia Blaser2
1Department of Biomedical Engineering, Center for Intelligent Optics (CIO), University of Basel, 4123, Allschwil, Switzerland. mingyi.liu@unibas.ch.
Scientific reports
|February 3, 2026
概括
与高斯形状相比,tophat光束形状显著提高了Er:YAG激光骨除深度和速度. 这一进步使激光骨切除术更接近临床应用,如全膝关节整形术.
科学领域:
- 生物医学工程 生物医学工程
- 激光物理 激光物理
- 整形外科手术 整形外科手术
背景情况:
- 激光骨切除术提供精度,但在切割速度和深度方面面临限制.
- 机械工具目前在骨切削效率方面优于激光器.
- 优化激光参数对于推进激光骨科手术至关重要.
研究的目的:
- 为了研究空间光束强度分布对Er:YAG激光骨切除的影响.
- 为了比较tophat与高斯强度配置文件的性能,用于骨切割.
- 评估用于骨科手术的增强激光参数的潜力.
主要方法:
- 牛大腿皮层骨的Er:YAG激光切除,使用tophat和高斯强度配置文件.
- 使用优化的水空气冷却来进行废弃实验.
- 分析了切除深度,材料去除速度和表面特征 (SEM,拉曼光谱).
- 采用稳定状态模型来描述废弃过程.
主要成果:
- 托法特型材实现了44.51毫米的最大除深度和0.42毫米3/秒的去除速率,超过了高斯型材 (26.51毫米,0.24毫米3/秒).
- 干燥表面的剥离与托哈特形状达到1.58mm3/s,尽管有一些碳化.
- 与之前的Er:YAG激光研究相比,切割深度得到了两倍的改善.
- SEM和拉曼分析表明热损伤和组成变化最小.
结论:
- 托哈特光束强度配置显著提高了Er:YAG激光骨切除性能.
- 这种提高效率使激光骨切除术更接近膝关节全关节整形复苏的要求.
- 这些发现支持对形外科外科的高质量Er:YAG激光系统的潜在临床采用.
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