Patents by Inventor Sven-Erik Stangerup

Sven-Erik Stangerup has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Device for equalizing pressure in the middle ear
    Patent number: 5431636
    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.
    Type: Grant
    Filed: October 20, 1993
    Date of Patent: July 11, 1995
    Assignee: Abigo Medical AB
    Inventor: Sven-Erik Stangerup