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Guidewire
专利权人:
Masayuki Takahashi;Satoru Matsumoto
发明人:
Satoru Matsumoto,Masayuki Takahashi
申请号:
US12973252
公开号:
US08622932B2
申请日:
2010.12.20
申请国别(地区):
US
年份:
2014
代理人:
摘要:
An object of the present invention is to provide a guidewire having high safety and improved flexibility and rotation followability. This guidewire has an inner coil that surrounds a distal side portion of a core shaft, and an outer coil that surrounds the inner coil and the distal side portion of the core shaft. A front end of the outer coil and a front end of the inner coil are joined to a tip of the core shaft by a tip plug. Further, the guidewire has a coil joint that joins only the outer coil and the inner coil to each other. With this configuration, the flexibility of the inner coil is maintained. Moreover, rotation of a proximal side of the guidewire is transmitted to the inner coil not only from the core shaft but also from the outer coil. This leads to improvement in rotation followability.
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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