Preclinical Testing of a Combination Stone Basket and Ureteral Balloon To Extract Ureteral Stones.
JOURNAL OF ENDOUROLOGY(2018)
摘要
We have developed the Peralta Stone Extraction System to increase the safety of ureteral stone extraction. The device combines a nitinol stone basket and low-pressure balloon into a single device. After visualization, the stone is captured in the tipless nitinol basket and enveloped by a low-pressure balloon. We tested the performance of device prototypes in a porcine model using stone mimics with diameters ranging from 4.2 to 6.2 mm. Stones extracted with the device required less force when compared with stones in a standard ureteral stone basket. The force reduction was most pronounced for stones greater than 4.2 mm in diameter, and when traversing a ureteral stenosis model. In conclusion, a combination stone basket and balloon device may provide a new and safer way to extract ureteral stones.
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关键词
calculus,ureteral,nephrolithiasis,surgical procedures,ureteroscopy
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