Patent ID: 7764992
Filing Date: 2010-07-27
Classification: A61B,A61K

Abstract:
1. A method of testing peristalsis and bolus transit in a person's esophagus, comprising: positioning a plurality of electrodes in longitudinally spaced relation to each other in a person's esophagus; having the person swallow a thixotropic swallow challenge medium that has low shear viscosity in a range of 391,000 to 529,000 centipoises, medium shear viscosity in a range of 76,500 to 103,500 centipoises, and high shear viscosity in a range of 11,475 to 15,525 centipoises; and measuring impedance across the electrodes as the swallow challenge medium moves through the esophagus, wherein the impedance measurements are indicative of peristalsis or bolus transit.