Device for equalizing pressure in the middle ear
AssigneeAbigo Medical AB
InventorSven-Erik Stangerup
Life of this patent
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Abstract
A device for equalizing the pressure in the middle ear is comprised of a unit having one end that is to be positioned in a nostril and an opposite end that is provided with a rib. A balloon is positioned on the unit adjacent the rib. The unit is provided with a through hole whose smallest cross-sectional area is greater than or equal to 7 mm.sup.2. The elasticity of the balloon is such that a counter pressure of at least 20 mBar is produced upon being blown up.
Claims4
Device for equalizing the pressure in the middle ear, comprising a unit having a first end for being positioned in a nostril and an oppositely positioned second end that is provided with a rib, and a balloon mounted on the unit at the second end, said unit including an intermediate part positioned between said first and second ends, said intermediate part having an opening for connection to a venturi tube to permit the addition of a therapeutic agent upon return of air from the balloon to a nose cavity, said unit having a through hole extending therethrough whose smallest cross-sectional area is greater than or equal to 7 mm.sup.2, said balloon possessing an elasticity that produces a counter pressure of at least 20 mBar upon being blown up.
Dependencies are inferred from the claim text.