Patent ID: 8323217
Filing Date: 2012-12-04
Classification: A61B,A61M

Abstract:
1. A method for measuring the size of a gastric pouch, the method comprising the steps of: introducing a catheter into an esophagus, the catheter comprising an outer elongate tube, an inner elongate tube disposed within the outer elongate tube, a proximal balloon attached to the outer elongate tube, a distal balloon having a first end attached to the outer elongate tube and a second end attached to the inner elongate tube, at least two detection electrodes positioned on the outer elongate tube between at least two excitation electrodes, and a pressure transducer positioned on the outer elongate tube; locating the gastroesophageal junction using the proximal balloon; adjusting the distal balloon axially to a desired balloon length; injecting a fluid into the distal balloon to extend the distal balloon circumferentially; and determining a size variable of the gastric pouch.