The present disclosure is directed to a device. The device may include a distal shaft defining a central lumen and an orienting element comprising at least one inflatable member. Wherein a first portion of the orienting element extending from the shaft in a first direction and a second portion of the...http://www.google.com.au/patents/US20090088685?utm_source=gb-gplus-sharePatent US20090088685 - Endovascular devices and methods for exploiting intramural space