Patents by Inventor Robert Stagmann

Robert Stagmann 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: 5487747
    Abstract: An ophthalmic surgical device for macerating the lens nucleus in the eye and for removing particles of the macerated lens nucleus from the eye of a living being, includes a hand-held housing with a head piece attached at one axial end of the housing and supporting a guide tube. Disposed in the guide tube is a tubular probe which is operatively connected to a motor drive and projects beyond the guide tube with its tip to carry a cutting element in form of at least two rotatable wing-like blades oriented approximately transversely to the longitudinal axis of the guide tube. By means of the drive, the tubular probe is rotatable relative to the stationary guide tube about the longitudinal axis and movable at a high frequency in direction of the longitudinal axis.
    Type: Grant
    Filed: May 3, 1994
    Date of Patent: January 30, 1996
    Assignee: Grieshaber & Co. AG Schaffhausen
    Inventors: Robert Stagmann, Rudolf Demmerle