As soon as the capsule reaches the esophagus during swallowing, the film is pulled out of the capsule by the very thin thread. As a result, the mucoadhesive film unrolls as the capsule passes ...

Esophageal capsule endoscopy for screening and surveillance of esophageal varices in patients with portal hypertension. Hepatology 47 , 1595–1603 (2008). Article Google Scholar ...