Patents by Inventor Karen L. Armstrong

Karen L. Armstrong 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).

  • Hydrophobic catheter and composition
    Patent number: 10238776
    Abstract: In various embodiments, a surgical catheter is provided. The catheter may comprise one or more hydrophobic barrier layers made from an ethylene-pertfluoroethylenepropylene (“EFEP”) copolymer. Additionally, the catheter may comprise another polymer layer made from a reactive polar polymer. In at least one embodiment, the reactive polar polymer may be a modified-poly(ether block amide) (“PEBA”) copolymer, such as an amine-terminated PEBA. Moreover, in various embodiments, a composition is provided that may comprise a reactive polar polymer bonded to an EFEP copolymer.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: March 26, 2019
    Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
    Inventors: Xiaoping Guo, James V. Kauphusman, David P. Johnson, Karen L. Armstrong
  • Hydrophobic catheter and composition
    Publication number: 20120172840
    Abstract: In various embodiments, a surgical catheter is provided. The catheter may comprise one or more hydrophobic barrier layers made from an ethylene-pertfluoroethylenepropylene (“EFEP”) copolymer. Additionally, the catheter may comprise another polymer layer made from a reactive polar polymer. In at least one embodiment, the reactive polar polymer may be a modified-poly(ether block amide) (“PEBA”) copolymer, such as an amine-terminated PEBA. Moreover, in various embodiments, a composition is provided that may comprise a reactive polar polymer bonded to an EFEP copolymer.
    Type: Application
    Filed: December 29, 2010
    Publication date: July 5, 2012
    Inventors: Xiaoping Guo, James V. Kauphusman, David P. Johnson, Karen L. Armstrong