Needle-perc超脉冲光纤铥激光碎石光纤周围温度变化的体外实验研究  

In vitro experimental study on the temperature variation around super-pulse fiber of thulium fiber laser lithotripsy with Needle-perc

作　　者：丁天福 徐铮 肖博 黄忠月 单中杰[2] 张楠[2] 李建兴 DING Tianfu;XU Zheng;XIAO Bo;HUANG Zhongyue;SHAN Zhongjie;ZHANG Nan;LI Jianxing(Department of Urology,Beijing Tsinghua Changgung Hospital,Research Center for Urinary Disease,School of Clinical Medicine,Tsinghua University,Beijing,102218,China;Department of Urology,People's Hospital of Zhengzhou)

机构地区：[1]北京清华长庚医院泌尿外科、清华大学临床医学院泌尿疾病研究中心,北京102218 [2]郑州人民医院泌尿外科

出　　处：《临床泌尿外科杂志》2024年第9期807-811,共5页Journal of Clinical Urology

摘　　要：目的探究Needle-perc超脉冲光纤铥激光碎石过程中光纤周围温度变化的情况。方法利用体外肾结石模型,由同一名医生行Needle-perc激光碎石术,采用2个测温探头置于激光光纤两侧2 mm处,实时进行检测并记录。保持实验室温度25℃左右。灌流液采用生理盐水,温度22℃左右。灌流速度:0、25、50、100 mL/min。碎石功率:8、10、12、15 W,参数组合:“高能低频”模式和“高频低能”模式。间断激发:激发15 s,间断5 s,每组实验周期为120 s;连续激发:连续激发120 s,每组实验重复10次,温度记录仪实时记录温度。结果碎石功率为8、10、12、15 W时,灌流速度为0 mL/min时,温度超过安全阈值的时间分别是连续激发模式:23、18、13、9 s,间断激发模式:30、24、13、9 s。灌流速度为25、50、100 mL/min时,无论哪种激发模式,温度都没超过安全阈值。碎石功率为8、10、12、15 W,灌流速度25 mL/min时,“高能低频”碎块化模式和“高频低能”粉末化模式光纤周围温度变化值相比较,“高频低能”温度变化值高于“高能低频”模式,差异有统计学意义(P<0.05)。碎石功率为8、10、12、15 W,灌流速度25 mL/min时,连续激发和间断激发模式光纤周围温度变化值相比较,连续激发模式温度变化值温度高于间断激发,差异有统计学意义(P<0.05)。结论Needle-perc超脉冲光纤铥激光进行碎石时,连续激发模式温度变化值高于间断激发,“高频低能”参数组合温度变化值高于“高能低频”参数组合。但在碎石功率在≤15 W,灌注速度在≥25 mL/min时,无论哪种激发模式、参数组合,激光光纤周围的温度都是安全、可靠的。Objective To investigate the temperature changes around the fiber during the Needle-perc ultra-pulse fiber thulium laser lithotripsy.Methods Using an in vitro kidney stone model,a single doctor performed Needle-perc laser lithotripsy,and two temperature probes were placed 2 mm on both sides of the laser fiber for real-time detection and recording.The laboratory temperature was maintained at around 25℃.The irrigation fluid was normal saline at a temperature of around 22℃.Irrigation flow rates were 0,25,50,and 100 mL/min.Lithotripsy power was set at 8,10,12,and 15 W,and parameter combinations were"high energy low frequency"mode and"high frequency low energy"mode.The excitation mode was intermittent excitation:excitation for 15 s,intermittent for 5 s,and the experimental period for each group was 120 s;continuous excitation:continuous excitation for 120 s.Each group of experiments was repeated 10 times,and the temperature recorder recorded the temperature in real time.Results If the lithotripsy power was 8,10,12,and 15 W and the irrigation flow rate was 0 mL/min,the time for the temperature to exceed the safety threshold in the continuous excitation mode was 23,18,13,and 9 s,respectively,and in the intermittent excitation mode,it was 30,24,13,and 9 s,respectively.If the irrigation flow rate was 25,50,and 100 mL/min,no matter which excitation mode was used,the temperature did not exceed the safety threshold.If the lithotripsy power was 8,10,12,and 15 W and the irrigation flow rate was 25 mL/min,the temperature change value in the"high frequency low energy"mode was higher than that in the"high energy low frequency"mode.The difference was statistically significant(P<0.05).If the lithotripsy power was 8,10,12,and 15 W and the irrigation flow rate was 25 mL/min,the temperature change value in the continuous excitation mode was higher than that in the intermittent excitation mode.The difference was statistically significant(P<0.05).Conclusion During the Needle-perc super-pulse fiber thulium laser lithotripsy,the tempe

关 键 词：肾结石 Needle-perc 温度 超脉冲铥激光 

分 类 号：R692.4[医药卫生—泌尿科学]