An array of electrical bioimpedance electrodes are provided on a hollow, flexible tube that is insertable into the esophagus of a patient. Four electrodes are positioned on the outer wall of the tube. Four wires are run through the hollow center portion of the tube and are connected through the wall...http://www.google.fr/patents/US4836214?utm_source=gb-gplus-shareBrevet US4836214 - Esophageal electrode array for electrical bioimpedance measurement
Esophageal electrode array for electrical bioimpedance measurement
