Idan Tobis,Jean Claude Laborde,Gabriel Sobrino-Serrano,Patrick Griffen
申请号：
US16326332
公开号：
US20190240024A1
申请日:
2017.08.17
申请国别(地区):
US
年份:
2019
代理人:
摘要：
An expandable tissue anchor (20, 120, 190, 220, 320, 420) includes an elongate tissue-coupling portion (30, 130, 192, 230, 330, 430) supported by an anchor shaft (32) at a first end (34) of the tissue-coupling portion (30, 130, 192, 230, 330, 430). The tissue-coupling portion (30, 130, 192, 230, 330, 430) is configured to be delivered in an unexpanded generally elongate configuration through a cardiac tissue wall from a first side of the wall to a second side of the wall, and to expand, on the second side of the cardiac tissue wall, to an expanded open shape configuration, such that the expanded tissue-coupling portion (30, 130, 192, 230, 330, 430) can be drawn tightly against the second side of the cardiac tissue wall when a tensile force is applied to the tissue-coupling portion (30, 130, 192, 230, 330, 430). The anchor (20, 120, 190, 220, 320, 420) also includes an elongate tip portion (38, 138, 238, 338, 438) supported at a second end (40, 240, 340, 440) of the tissue-coupling portion (30, 130, 192, 230, 330, 430) and configured to be delivered through the cardiac tissue wall ahead of the tissue-coupling portion (30, 130, 192, 230, 330, 430), the tip portion (38, 138, 238, 338, 438) including material having a stiffness less than a stiffness of the tissue-coupling portion (30, 130, 192, 230, 330, 430).
