Indeflator is an inflation/deflation device used to inflate and deflate an angioplasty balloon during coronary angioplasty. The device has an inflation syringe, a connecting tube and a pressure gauge. The inflation syringe has a lock to maintain negative pressure in the balloon while introducing into the vessel and positioning across the lesion.
The pressure gauge monitors the pressure developed within the angioplasty balloon while the balloon is being inflated. This is needed for maintaining safety of the inflations. Each balloon has rated burst pressure and going above the rated burst pressure increases the risk of balloon rupture. Balloons reach nominal diameters at pressures rated as nominal inflation pressure. Inflation pressure is usually measure in atmospheres.