John W. Poore,Gene A. Bornzin,Zoltan Somogyi,Steven R. Conger
申请号：
US13655125
公开号：
US20140114387A1
申请日:
2012.10.18
申请国别(地区):
US
年份:
2014
代理人:
摘要：
An implantable therapy lead includes a tubular body, an obturator, and a helical anchor electrode. The obturator is displaceably supported on a distal end of the tubular body between a recessed position and an extended position. When the obturator is in the extended position, the extreme distal tip of the tissue penetrating point of the helical anchor electrode contacts an outer surface of the obturator in a manner that prevents the extreme distal tip from being capable of tissue penetration significant enough to allow the helical anchor electrode to be screwed into the heart tissue. When the obturator is in the recessed position, the extreme distal tip no longer contacts the outer surface of the obturator and the extreme distal tip is positioned relative to the outer surface of the obturator so as to allow the extreme distal tip to penetrate the heart tissue.
