Patent ID: 7399283
Filing Date: 2008-07-15
Classification: A61M

Abstract:
1. A medical guide wire having a stepwisely thickness-reduced but breadth-increased distal tip structure comprising: a core wire inserted into a helical coil body; a head plug attached to a distal end of said core wire and a distal end of said helical coil body; a core line securement portion in which said core wire is firmly fixed together in one piece to an inner side of said helical coil body so as to form a top leading end portion between said core line securement portion and said head plug; and a flat plane structure having corresponding segment plates in which said core wire of said top leading end portion gradually changes through a plurality of stepped portions that act as transitions between said segment plates within said helical coil body so that the thickness of said core wire is progressively reduced stepwisely while the breadth of said core wire is successively increased stepwisely as approaching a foremost distal end of said top leading end portion, wherein