Water Spray-Assisted Ablation of Bone Hard Tissue with Pulsed CO2 Laser

Xianzeng, 张先增 Zhan; Jian, 郭健 Guo; Zhenlin, 詹振林 Zhan; Shusen, 谢树森 Xie; Qing, 叶青 Ye

doi:10.3788/aos20103007.2069

Cited by 2 publications

(1 citation statement)

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“…This is because, as it is a water spray jet, its shows the possibility of achieving competitive results in terms of ablation rate at low mean temperature with very limited water consumption and with a clinical-environmentfriendly setup. While such low temperature regimes can be obtained with the use of fs laser sources only, water sprays are indeed already used and are mandatory in many laser procedures to improve cutting quality, tissue regeneration and to increase ablation rates [38][39][40].…”

Section: Discussionmentioning

confidence: 99%

Real-Time Monitoring of Thermal Phenomena during Femtosecond Ablation of Bone Tissue for Process Control

Al-Bourgol,

Machinet,

Bakkali

et al. 2024

Bioengineering

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Femtosecond (fs) laser technology is currently being considered in innovative fields such as osteotomy and treatment of hard tissue thanks to the achievable high resolution and ability to prevent tissue damage. In a previous study, suitable process parameters were obtained to achieve competitive ablation rates on pork femur processing. Nevertheless, a better control of thermal accumulation in the tissue during laser ablation could further improve the postoperative regeneration of the treated bone compared with conventional procedures and push forward the exploitation of such technology. This study presents methods for real time analyses of bone tissue temperature and composition during fs laser ablation and highlights the importance of implementing an efficient cooling method of bone tissue in order to achieve optimized results. Results show that it is possible to achieve a larger process window for bone tissue ablation where bone tissue temperature remains within the protein denaturation temperature in water-based processing environment. This is a key outcome towards a clinical exploitation of the presented technology, where higher process throughputs are necessary. The effects of process parameters and environments on bone tissue were confirmed by LIBS technique, which proved to be an efficient method by which to record real-time variation of bone tissue composition during laser irradiation.

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Section: Discussionmentioning

confidence: 99%