| 摘要 |
<p>A guidewire having an intermediate flexibility region to provide trackability and steerability while reducing guide catheter device back out. In one embodiment, the guidewire includes a distal flexibility region, intermediate flexibility region and proximal flexibility region. The intermediate or support flexibility region preferably extends from between about 3 cm to 40 cm proximally of the distal tip. The intermediate region is divided into at least two sections of varying stiffness.</p> |
