D. Bruce Modesitt,Joseph F. Paraschac,Brian A. Ellingwood
申请号：
US14977587
公开号：
US20160106457A1
申请日:
2015.12.21
申请国别(地区):
US
年份:
2016
代理人:
摘要：
One embodiment is directed to a device for forming a tract, comprising an anchor assembly wherein at least a distal tip of the flexible distal portion is configured to be placed within a lumen of a blood vessel through a first passage created across the wall with a sharpened member at a first angle relative to a lumen longitudinal axis defined by the lumen of the blood vessel in the region adjacent the first passage and wherein upon applying a force to the anchor assembly to position an adjacent portion of the blood vessel wall into a desired contact configuration relative to the anchor assembly, the needle is operatively coupled to the anchor assembly such that it may be advanced across the wall of the blood vessel and into contact with a saddle-shaped needle receiving structure, thereby creating an expandable tract between overlapping tissue portions of the vessel wall.
