Jay A. Lenker;Brian M. Strauss;Lynn Miyeko Shimada
发明人:
Jay A. Lenker,Brian M. Strauss,Lynn Miyeko Shimada
申请号：
US13141177
公开号：
US20120101510A1
申请日:
2009.12.23
申请国别(地区):
US
年份:
2012
代理人:
摘要：
Systems and methods for removing obstructions from, delivering implantable devices or substances in or near and/or restoring flow through body lumens, such as blood vessel lumens. A catheter having a proximal portion of a first diameter and a distal portion of a second diameter (smaller than the first diameter) is advanced into a body lumen. The distal portion of the catheter is caused to expand to a diameter that is larger than the second diameter but no larger than the first diameter. A working device is then advanced out of the distal end of the catheter and used to remove obstructive matter, deliver an implantable device or substance and/or restore flow. The distal portion can be reduced in diameter prior to removal from the body.
