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Original title: Do you really know the guide wire of urology? Editor's note Surgery is not only a technology, but also an art and a philosophy. Urological surgeons in China have summed up many "small" skills, "small" summaries aewire is thick, there is still no way to pass through the 5Fr stent. Have we experienced ureteral perforation during rigid ureteroscopic surgery or placement of a flexible ureteroscopic sheath? Most of these cases wsted segment of the ureter. The main part of most ureteral guide wires is made of nickel-titanium alloy, which has good torsion and tensile force, can resist folding, and is convenient to bypass stones and narrow segments. Some ureteral guide wires are made of stainless steel spiral material with Teflon coating. Because Teflon material is the material with the lowest friction coefficient in the world, nickel titanium wire , this kind of guide wire is often used for stent placement. In short, with the development of endoscopicl natural science project and two projects of Jiaxing Science and Technology Bureau as the main participant, published five articles in SCI and core journals as the first author or corresponding author, anquipment, and the hardware and software facilities are leading in China. Many members of the department hold corresponding positions in societies at all levels, and the department is also a postgraduate training point and a GCP drug clinical verification unit. In the past ten years,titanium exhaust tubing, members of the department have completed more than 20 scientific research projects at all levels, held 15 national and provincial continuing education classes, and published more than 80 articles including SCI and first-class journals. Return to Sohu to see more Responsible Editor:. yunchtitanium.com