pneumatic dilator

pneumatic dilator

any of a variety of catheters fitted with distal balloons that can be inflated to desired pressures for overcoming obstructions in hollow viscera; most often used to rupture the lower esophageal sphincter to treat achalasia.

pneu·mat·ic di·la·tor

(nū-mat'ik dī'lā-tŏr)
Any of a variety of catheters fitted with distal balloons that can be inflated to desired pressures for overcoming obstructions in hollow viscera; most often used to rupture the lower esophageal sphincter to treat achalasia