James F. McGuckin, JR.,James E. Bressler,John D. Leedle
申请号：
US14492044
公开号：
US20150012034A1
申请日:
2014.09.21
申请国别(地区):
US
年份:
2015
代理人:
摘要：
A vessel filter movable between a collapsed position for delivery to the vessel and an expanded position for placement within the vessel, and having a filter portion having a converging region to direct particles toward the center. The filter portion converges into a tubular portion. The second region is flared in the expanded position to have a transverse dimension increasing in a direction away from the filter portion and includes a vessel engaging portion. The first region has a spacer to keep the filter more toward a center of a vessel, wherein in the collapsed position the spacer extends axially in an elongated position cranially of the cranial end of the filter and in the expanded position the spacer forms a looped region extending radially with respect to a longitudinal axis of the filter. The spacer has a first end attached to the internal surface of the tubular portion and extends within the tubular portion and emerges cranially from the tubular region to form the looped region.
