Patents by Inventor Johan Ryden

Johan Ryden 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).

  • Patent number: 6091992
    Abstract: A method and apparatus for providing electrical stimulation of the gastrointestinal tract. The apparatus features an implantable pulse generator which may be coupled to the gastric system through one or more medical electrical leads. In the preferred embodiment the leads couple to the circular layer of the stomach.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: July 18, 2000
    Assignee: Medtronic, Inc.
    Inventors: Ivan Bourgeois, Johan Ryden
  • Patent number: 5728148
    Abstract: A stylet unit suitable for stiffening a hollow electrode cable, such as during the introduction and the anchoring of a medical electrode cable in the human body, includes a combination of a pair of flexible, coaxially arranged stylet elements, i.e., a tubular stylet sleeve and an internal stylet, which can be inserted into a channel in the sleeve and whose end section is pre-bent to one side. Both the stylet sleeve channel and moving inner stylet contained therein have sections or segments with non-circular cross-sections, the profile of the stylet's non-circular cross-section, in relation to the profile of the sleeve channel's non-circular cross-section, preventing the stylet from rotating in relation to the surrounding sleeve, at least within the parts of the sleeve in which both the stylet and the sleeve channel have interacting non-circular cross-sections.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: March 17, 1998
    Assignee: Pacesetter AB
    Inventors: Mats Bostrom, Johan Ryden