Patents by Inventor Matthias Hahnle

Matthias Hahnle 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).

  • Holding arrangement having an apparatus for balancing a load torque
    Patent number: 7109678
    Abstract: In a holding arrangement (101) for a medical-optical instrument (103), an electric motor is provided in a rotational joint (111, 119) to compensate a load torque occurring in this rotational joint. This electric motor is supplied with current in correspondence to a detected position of the rotational joint (111, 119). A current control curve required for this purpose is stored in a memory. This current control curve can be determined in that the rotational joints are deflected with the electric motor into predetermined positions and the current demand needed therefor is detected.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: September 19, 2006
    Assignee: Carl-Zeiss-Stiftung
    Inventors: Martin Kraus, Hartmut Gärtner, Martin Poxleitner, Michael Wirth, Alfons Abele, Roland Brenner, Norbert Sporer, Matthias Hähnle
  • Holding arrangement having an apparatus for balancing a load torque
    Publication number: 20040263102
    Abstract: In a holding arrangement (101) for a medical-optical instrument (103), an electric motor is provided in a rotational joint (111, 119) to compensate a load torque occurring in this rotational joint. This electric motor is supplied with current in correspondence to a detected position of the rotational joint (111, 119). A current control curve required for this purpose is stored in a memory. This current control curve can be determined in that the rotational joints are deflected with the electric motor into predetermined positions and the current demand needed therefor is detected.
    Type: Application
    Filed: June 30, 2004
    Publication date: December 30, 2004
    Inventors: Martin Kraus, Hartmut Gartner, Martin Poxleitner, Michael Wirth, Alfons Abele, Roland Brenner, Norbert Sporer, Matthias Hahnle
  • Gripping unit for application in minimally invasive surgery
    Patent number: 6053933
    Abstract: A gripping unit for application in Minimally Invasive Surgery includes a stationary jaw (2) rigidly attached to a base section (4), a movable jaw (1) connected via a joint (5) to a push/pull rod (3), and an operating handle (6). The stationary jaw (2), the movable jaw (1), the push/pull rod (3) and the base section (4) have, in the longitudinal direction of the gripping unit, a channel (9) to receive an additional instrument (7), designed so that the channels (9, 30) in the base section (4) and in the push/pull rod (3) together form a circular conduit.
    Type: Grant
    Filed: August 7, 1997
    Date of Patent: April 25, 2000
    Assignee: Deutsches Zentrum fur Luft- und Raumfahrt E.V.
    Inventors: Matthias Balazs, Matthias Hahnle