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Fil-guide médical
专利权人:
PatentStra Co. Ltd.
发明人:
申请号:
EP11171040.6
公开号:
EP2402051A1
申请日:
2011.06.22
申请国别(地区):
EP
年份:
2012
代理人:
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 (1a-1g) 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).
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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