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Medical guide wire, an assembly of microcatheter and guiding catheter combined with the medical guide wire, and an assembly of ballooncatheter and guiding catheter combined with the medical guide wire
Medical guide wire, an assembly of microcatheter and guiding catheter combined with the medical guide wire, and an assembly of ballooncatheter and guiding catheter combined with the medical guide wire
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机译:医用导丝,与医用导丝结合的微导管和导管的组件以及与医用导丝结合的球囊导管和导管的组件
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摘要
In a medical guide wire 1, a helical spring body 3 is made of austenitic stainless steel wire treated with a solid-solution procedure, and tightly drawn with a whole cross sectional reduction ratio as 90%-99.5%. A metallic wire element of the helical spring body 3 is heat treated at low temperature within a range in which a tensile rupture strength of the helical spring body 3 rapidly increases by partly or totally making use of a conductive heat generated when a core wire 2 and the helical spring body 3 are in part bonded by means of a welding member 4. This makes it possible to improve a mechanical strength property, especially a fatigue-resistant property against a repetitive bending action of the helical spring body 3. 展开▼