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首页> 外文会议>Conference on lasers in orthopedic, dental, and veterinary medicine >Penetration and mass loss rates with different energy levels in the human meniscus for the holmium:YAG laser
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Penetration and mass loss rates with different energy levels in the human meniscus for the holmium:YAG laser

机译：对钬的人体半月板不同能量水平的渗透和大规模损失率：YAG激光

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摘要

Using a pulsed Holmium:YAG laser, wavelength 2.1 $mu@m, the ablation rate and thermal effect were measured on human meniscal cartilage. Holding the pulsewidth and repetition rate constant, fluences per pulse were varied between 167 - 927 J/cm$+2$//pulse for the penetration rate and between 1.7 - 100 J/cm$+2$//pulse for the mass loss rate. The fastest ablation rate was found at 927 J/cm$+2$//pulse for the penetration rate and at 100 J/cm$+2$//pulse for the mass loss rate. The thresholds were 53 J/cm$+2$//pulse and 1.36 J/cm$+2$//pulse, respectively. The increases in ablation rate were directly proportional to increases in fluences for both methods. Histological examination showed the average lateral thermal change to be 400 - 500 $mu@m and 400 - 460 $mu@m, respectively, with no relation to level of fluence.
机译：使用脉冲钬：YAG激光，波长2.1 $ MU @ M，在人半月板软骨上测量消融率和热效果。保持脉冲宽度和重复率常数，每次脉冲的流量在167-927 j / cm $ + 2 $ //脉冲之间变化，用于渗透率，介于1.7-100 j / cm $ + 2 $ //脉冲以进行质量损失速度。最快的消融率为927J / cm $ + 2 $ //脉冲，用于渗透率，以100 j / cm $ + 2 $ //脉冲，用于质量损失率。阈值分别为53 j / cm $ + 2 $ // pulse，分别为1.36 j / cm $ + 2 $ // pulse。消融率的增加与两种方法的流利的增加成正比。组织学检查显示平均横向热变化，分别为400 - 500 $ MU @ M和400-460 $ MU @ M，与流量水平无关。

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