Gastroesophageal reflux disease (GERD) is a digestive disorder that is caused by the frequent reflux of stomach contents into the esophagus. It is estimated that around 20% of adults experience heartburn or acid reflux at least once a month. Heartburn or acid reflux is the classic symptom of GERD. Gastroesophageal reflux disease devices are used to control gastric reflux and keep stomach acid...