Patents by Inventor Michael PONITZ

Michael PONITZ 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).

  • Selective parylene coating for cardiac pacemaker electrodes
    Patent number: 8355802
    Abstract: A stimulation electrode is produced having a porous film layer and being partially coated with an insulating parylene (polyparaxylylene) film, whose insulating film has a dielectric breakdown voltage of greater than 100 V. Parylene is deposited on the entire surface of a porous film coating and then partially removed again by plasma. After the partial removal of the parylene, this porous film still has a capacitance of greater than 15 mF/cm2 in a physiological NaCl solution at a frequency of 0.1 Hz. For the stimulation electrode, the transition from the insulating film to the porous film is formed so that the film thickness of the parylene film decreases continuously. In this way, a stimulation electrode having a porous film layer and being partially coated with an insulating parylene film is provided, whose electrode on the non-insulating parylene film-coated surface has a capacitance of greater than 15 mF/cm2 in a physiological NaCl solution at a frequency of 0.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: January 15, 2013
    Assignee: Heraeus Precious Metals GmbH & Co. KG
    Inventors: Oliver Keitel, Frank Krüger, Michael Pönitz
  • SELECTIVE PARYLENE COATING FOR CARDIAC PACEMAKER ELECTRODES
    Publication number: 20090312825
    Abstract: A stimulation electrode is produced having a porous film layer and being partially coated with an insulating parylene (polyparaxylylene) film, whose insulating film has a dielectric breakdown voltage of greater than 100 V. Parylene is deposited on the entire surface of a porous film coating and then partially removed again by plasma. After the partial removal of the parylene, this porous film still has a capacitance of greater than 15 mF/cm2 in a physiological NaCl solution at a frequency of 0.1 Hz. For the stimulation electrode, the transition from the insulating film to the porous film is formed so that the film thickness of the parylene film decreases continuously. In this way, a stimulation electrode having a porous film layer and being partially coated with an insulating parylene film is provided, whose electrode on the non-insulating parylene film-coated surface has a capacitance of greater than 15 mF/cm2 in a physiological NaCl solution at a frequency of 0.
    Type: Application
    Filed: June 17, 2009
    Publication date: December 17, 2009
    Applicant: W.C. HERAEUS GMBH
    Inventors: Oliver KEITEL, Frank KRUGER, Michael PONITZ