Patents by Inventor Johan Lundahl

Johan Lundahl 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).

  • Hydrophilic medical device
    Patent number: 11724008
    Abstract: A medical device, such as a catheter, is disclosed, comprising a substrate and having on its surface, on at least a part thereof, a hydrophilic surface layer providing low-friction surface character of the medical device when wetted by a wetting fluid. At least one base layer of the substrate, including the hydrophilic surface layer, is made of a polymer blend comprising at least one base polymer and at least one hydrophilic polymer, and wherein the concentration of the at least one hydrophilic polymer is higher in the hydrophilic surface layer than in the rest of the base layer. A method for producing such a medical device is also disclosed.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: August 15, 2023
    Assignee: DENTSPLY IH AB
    Inventors: Johan Lundahl, Åsa Rindlav Westling
  • HYDROPHILIC MEDICAL DEVICE
    Publication number: 20190224384
    Abstract: A medical device, such as a catheter, is disclosed, comprising a substrate and having on its surface, on at least a part thereof, a hydrophilic surface layer providing low-friction surface character of the medical device when wetted by a wetting fluid. At least one base layer of the substrate, including the hydrophilic surface layer, is made of a polymer blend comprising at least one base polymer and at least one hydrophilic polymer, and wherein the concentration of the at least one hydrophilic polymer is higher in the hydrophilic surface layer than in the rest of the base layer. A method for producing such a medical device is also disclosed.
    Type: Application
    Filed: December 22, 2016
    Publication date: July 25, 2019
    Inventors: Johan Lundahl, Åsa Rindlav Westling