Stone Extractor Nitinol material Super elasticity, memory, kink resistance, can withstand multiple deployment and closure, conducive to the extraction and release of stones, taking into account different flexible or rigid endoscope High-quality outer sheath It has smooth and soft surface, not only ensure the unobstructed working channel of the endoscope, but also comply with the full angle bending of the soft scope reaching the bottom calyx easily; balance the strength and softness No cutting-edge design The four wire type has the advantages of safe use, intrarenal trauma reducicibly, convenient...