Analysis of laser fiber to stone distance during different modes of laser lithotripsy
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چکیده
منابع مشابه
Laser lithotripsy to treat basket impaction during mechanical lithotripsy of a pancreatic duct stone.
CONTEXT Though uncommon, pancreatic duct stones can cause significant discomfort and morbidity. Endoscopic removal of pancreatic stones may decrease intraductal pressure by augmenting ductal drainage. Endoscopy is shown to be most effective when used early in the course of the disease. Endoscopic methods such as mechanical lithotripsy are often successful in removing the majority of pancreatic ...
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در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...
15 صفحه اولThulium fiber laser lithotripsy using tapered fibers.
INTRODUCTION The Thulium fiber laser has recently been tested as a potential alternative to the Holmium:YAG laser for lithotripsy. This study explores use of a short taper for expanding the Thulium fiber laser beam at the distal tip of a small-core fiber. METHODS Thulium fiber laser radiation with a wavelength of 1,908 nm, 10 Hz pulse rate, 70 mJ pulse energy, and 1-millisecond pulse duration...
متن کاملEffect of laser insult on devices used to prevent stone retropulsion during ureteroscopic lithotripsy.
PURPOSE To examine laser damage to three commercially available devices used to prevent stone retropulsion during ureteroscopic lithotripsy. MATERIALS AND METHODS Two experiments were performed with five Accordion, Stone Cone, and NTrap devices each. All devices had a 7-mm outer diameter. The holmium:yttrium-aluminum-garnet laser was set at 8 watts. Experiment 1 was performed in an acrylic tu...
متن کاملHollow steel tips for reducing distal fiber burn-back during thulium fiber laser lithotripsy.
The use of thulium fiber laser (TFL) as a potential alternative laser lithotripter to the clinical holmium:YAG laser is being studied. The TFL's Gaussian spatial beam profile provides efficient coupling of higher laser power into smaller core fibers without proximal fiber tip degradation. Smaller fiber diameters are more desirable, because they free up space in the single working channel of the...
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ژورنال
عنوان ژورنال: European Urology Open Science
سال: 2020
ISSN: 2666-1683
DOI: 10.1016/s2666-1683(20)32783-x