Sung Woo Min,Randolf von Oepen,Binh T. Nguyen,Kevin J. Ehrenreich,William E. Webler, JR.,Rommel Lumauig,Gregory W. Chan,Lorcan J. Coffey,Travis R. Yribarren,Jesus Magana
申请号：
US14061518
公开号：
US20140121603A1
申请日:
2013.10.23
申请国别(地区):
US
年份:
2014
代理人:
摘要：
A catheter for delivering an agent to an injection site in a wall of a patients body lumen, with an elongated shaft having a needle-through lumen slidably containing a needle therein, and an expandable member on the distal shaft section which has a collapsed configuration and a radially expanded configuration. In the radially expanded configuration, the expandable member supports the shaft in a position spaced away from the body lumen wall, and the needle slidably exits the needle-through lumen in the extended configuration through the port spaced away from the body lumen wall as a portion of the expandable member maintains the position of the port section of the shaft in the body lumen. The expandable member typically has an open-walled, helical, or lobed configuration providing a perfusion path along the expandable member.
