A tube of the Hurst mercury bougie type with added canal to aid in barium studies in cases of achalasia of the stomach.
D001464:Barium; D004931:Esophageal Achalasia / Q000175:diagnosis*; D006801:Humans; D008628:Mercury; D013270:Stomach
D001464:Barium; D008628:Mercury
CARDIOSPASM/diagnosis