Patents by Inventor Frank L. H. Gielen

Frank L. H. Gielen 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: 5843148
    Abstract: A brain stimulation lead for precise delivery of electrical stimuli to a small dense brain target, and method of positioning such lead optimally in the patient's brain, is provided. The lead has a distal end portion which is substantially tubular or cylindrical along a longitudinal axis, and has a plurality of electrodes characterized by a diagonal geometry, permitting a greater number of electrodes to be provided within a very small lineal distance, e.g. 10 mm or even 5 mm. In a preferred embodiment, three ring electrodes are positioned on the distal end portion, each at a common angle of about 45 degrees and each extending only about 180.degree. around the lead body. The ring segment electrodes are about 0.5 mm in axial length, and have a separation of about 0.5 mm. The lead also has a tip electrode with a substantially spherical distal edge, and a proximal diagonal edge having the same angle as the ring segment electrodes.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: December 1, 1998
    Assignee: Medtronic, Inc.
    Inventors: Johannes T. M. Gijsbers, Frank L. H. Gielen, Henricus M. Knuth