发明名称 |
Torsionally compensated guidewire |
摘要 |
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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申请公布号 |
US6527732(B1) |
申请公布日期 |
2003.03.04 |
申请号 |
US20000690914 |
申请日期 |
2000.10.17 |
申请人 |
MICRO THERAPEUTICS, INC. |
发明人 |
STRAUSS BRIAN M.;CONNER AMANDA M.;PERALTA NELSON |
分类号 |
A61M25/01;A61B5/00;A61F;A61M25/08;(IPC1-7):A61B5/00 |
主分类号 |
A61M25/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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