Torsionally compensated guidewire
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Mar 4, 2003
Grant Date -
N/A
app pub date -
Oct 17, 2000
filing date -
Oct 17, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A guidewire includes a core and a coil in composite cooperation to enable the guidewire to be used within tortuous regions of the vasculature. The core has a proximal region and a distal region. The distal region includes a flattened end and a tang for connecting the core to the coil. The coil has a proximal end, a distal end and a length extending between the proximal end and the distal end. The ratio between the proximal region and the coil diameter is 1.4:1 or greater. The guidewire includes three joints for attaching the coil to the core. A distal joint attaches the distal end of the coil to the flattened end of the core. A proximal joint attaches proximal end of the coil to the core. A medial joint attaches the length of the coil to the tang. The three joints cooperate with the 1.4:1 ratio to improve torque transmission ability of the guidewire to enable the guidewire to steer through vessels with bends of over 90 degrees and with lumen diameters of less than 3 mm.
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