Invention Grant
- Patent Title: Guidewire having a distal-end brazing member formed with different brazing portions
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Application No.: US15870018Application Date: 2018-01-12
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Publication No.: US11247027B2Publication Date: 2022-02-15
- Inventor: Satoru Murata , Tadahiro Koike , Yumiko Nakagawa
- Applicant: ASAHI INTECC CO., LTD.
- Applicant Address: JP Seto
- Assignee: ASAHI INTECC CO., LTD.
- Current Assignee: ASAHI INTECC CO., LTD.
- Current Assignee Address: JP Seto
- Agency: Oliff PLC
- Priority: JP2014-187257 20140916
- Main IPC: A61M25/09
- IPC: A61M25/09

Abstract:
A guidewire has a distal-most end portion that retains its desired shape. The guidewire includes a first brazing member joining a distal end of a core shaft to a distal end of an outer coil, and a second brazing member provided adjacent to and on a proximal side of the first brazing member. The guidewire also includes an outer coil surrounding an outer periphery of the core shaft, and an inner coil provided between the outer coil and the core shaft. The second brazing member is provided between the outer coil and the inner coil, but is not provided between the inner coil and the core shaft. The melting point of the first brazing member is higher than the melting point of the second brazing member.
Public/Granted literature
- US20180133439A1 GUIDEWIRE HAVING A DISTAL-END BRAZING MEMBER FORMED WITH DIFFERENT BRAZING PORTIONS Public/Granted day:2018-05-17
Information query
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