The present invention is an apparatus for treating a selected patient tissue or organ region, at the surface of such region. The apparatus has an accessing tool for accessing the patient region, the tool having a distal end, and a proximal end at which the tool can be manipulated to place the distal...http://www.google.com/patents/US20030130615?utm_source=gb-gplus-sharePatent US20030130615 - Pressure sensor for therapeutic delivery device and method
