首页>
外国专利>
FLEXIBLE TRANSMISSION TREATY WITH AN OUTER, RADIO-TRANSMISSIVE SPIRAL FEATURE AND AN INTERNAL, RADIO-TRANSMISSIVE SPIRAL FEATURE
FLEXIBLE TRANSMISSION TREATY WITH AN OUTER, RADIO-TRANSMISSIVE SPIRAL FEATURE AND AN INTERNAL, RADIO-TRANSMISSIVE SPIRAL FEATURE
展开▼
机译:具有外部,放射线螺旋形特征和内部,放射线螺旋形特征的柔性传输条约
展开▼
页面导航
摘要
著录项
相似文献
摘要
A guidewire includes a tapered core, an elongated non-radiopaque inner coil that is coincident with the core and extends over a distal portion of the core, and a radiopaque outer coil that fits over a distal end of the inner coil. The inner coil tapers between its proximal end and distal end, to form a tapered distal end section. The outer diameter of the proximal end of the inner coil is the same as the outer diameter of the proximal end of the core, before its first taper, and similarly, the outer diameter of the outer coil is the same as the outer diameter of the inner coil before its taper. Accordingly, the guidewire has an essentially uniform outer diameter over its entire length. A rounded tip that acts as a deformable buffer is formed where the distal ends of the two coils and the core join. The distal end of the core is preferably flattened to provide a formable end to the guidewire. A low friction coating may be added to the wire, to facilitate movement of the wire through the arteries.
展开▼