| 摘要 |
<p>Devices and methods for delivering stems to target vessel regions, including stmt delivery through microcatheters to narrow cerebral arteries. One stent delivery device includes a stmt (26) having the distal region (46) everted over the distal end (28) of a delivery tube, having the everted stmt distal end captured by a distal element (42) of a elongate release member (24) disposed through the delivery tube. The delivery tube can have a distal taper to a small profile distal end. The everted stent distal region can be captured between the release member distal element and the surrounding delivery tube distal region walls. The captured and everted stent can be distally advanced to a target site, followed by manipulating the release member to free the captured stmt. Some devices utilize distal advancement of the release member while other devices use proximal retraction of the release member to free the captured stent distal end.</p> |
