Guide wire
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United States of America Patent
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Apr 12, 2011
Grant Date -
Feb 26, 2004
app pub date -
Aug 7, 2003
filing date -
Aug 23, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A guide wire includes a first wire disposed on the distal side of the guide wire and a second wire disposed on the proximal side from the first wire. The first wire and the second wire are joined to each other by welding. A welded portion formed by welding has a projection projecting in the outer peripheral direction. The height of the projection may be in a range of 0.001 to 0.3 mm. The first wire may be made from a superelastic alloy, and the second wire be made from a stainless steel. The first wire and the second wire are welded to each other by a butt resistance welding process. Such a guide wire has a high joining strength between the first wire and the second wire, to thereby improve the operationality.
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