| 摘要 |
<p>A guidewire structure includes a medical guidewire and an attached guidewire anchor having collapsed and expanded states. The anchor includes struts and defines in the expanded state an open structure. Another guidewire structure includes a medical guidewire, an attached guidewire anchor having collapsed and expanded states, and an overtube. The anchor is resiliently flexible and is resiliently biased to the expanded state. The overtube is adapted to slide over the medical guidewire, to slidably cover and compress the anchor, and to slidably expose the anchor. Another guidewire structure includes a medical guidewire, a guidewire anchor, and a hollow tube having a distal end attached proximate the proximal end of the guidewire anchor. The medical guidewire is positioned within the hollow tube and within the guidewire anchor and is attached proximate the distal end of the anchor. The anchor is flexible and has collapsed and expanded states.</p> |
