| 摘要 |
A flexible guidewire system with a deflectable distal tip comprising a flexible tubular shield adapted to slide and rotate over a pilot wire, a flexible casing disposed over the shield, at least a distal portion of the casing being a helical wire, a first coupling means connected to the casing, a second coupling means connected to the shield and a thin narrow flexible link disposed in the distal portion of the casing, adjacent to one side of an inner surface of the casing, that connected to the distal end of the casing and to a distal end of the shield and compresses, to a larger extent on the one side that is adjacent to the link, when the first coupling means is displaced relative the second coupling means causing the distal portion of the casing to curve and deflect the distal tip.
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