Patent ID: 9632099
Date: 2017-04-25
CPC Classifications: C12Q,G01N

Claim:
1. A non-endoscopic method of screening for Barrett's esophagus (BE) in a subject comprising: obtaining a sample of cells, including columnar esophageal cells and columnar gastric mucosa cells, from the subject by retrieving a swallowable device from the subject that has been swallowed by the subject, the swallowable device comprising an abrasive material configured to collect at least some columnar esophageal cells and at least some columnar gastric mucosa cells in the sample of cells; detecting a biomarker in the sample of cells; and differentiating between the columnar esophageal cells and the columnar gastric mucosa cells in the sample of cells by detecting the biomarker only in the columnar esophageal cells, wherein the biomarker is indicative of the subject having BE.