An esophageal catheter device including a catheter with a balloon pressure sensor affixed to an exterior surface of the catheter, and a stylet assembly including a stylet for providing appropriate rigidity to the catheter to aid insertion in the esophagus and a port for removably mounting a pressure...http://www.google.fr/patents/US6723053?utm_source=gb-gplus-shareBrevet US6723053 - Esophageal balloon catheter device