Patents Assigned to Deutsche Institute fuer Textil-und Faserforschung Stuttgart Stiftung des oeffentlichen Rechts
  • Patent number: 7665682
    Abstract: An overend take-off crosswound bobbin and a method for its production are designed in such a way that the density of the finished crosswound bobbin is increased and the run-off characteristics during further processing are optimized. For this purpose, in one variant parallel windings are introduced at intervals. In another variant, when the bobbin diameter is small the yarn is wound on at a smaller pitch angle than for a larger diameter. Furthermore, a traversing stroke which is reduced by comparison with the bobbin width is displaced along the bobbin width.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: February 23, 2010
    Assignee: Deutsche Institute fuer Textil- und Faserforschung Stuttgart Stiftung des oeffentlichen Rechts
    Inventors: Gerd Stahlecker, Gernot Schäffler, Christoph Riethmüller
  • Patent number: 7582108
    Abstract: The invention relates to a tubular implant, in particular a stent, in the form of a round braid composed of threads of biocompatible material extending in oppositely directed helices and crossing over each other, thread areas located at the tube ends being free from thread ends, and threads present there being guided back into the braid structure.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: September 1, 2009
    Assignee: Deutsche Institute für Textil-und Faserforschung Stuttgart Stiftung des Oeffentlichen Rechts
    Inventors: Helmut Hierlemann, Maria Baumann, Markus Milwich, Heinrich Planck
  • Patent number: 7198799
    Abstract: A biologically resorbable nerve guide rail with a microporous guide tube of polymers of hydroxycarboxylic acids, where the porosity allows a metabolism through the tube wall, but prevents the passage of cells, and optionally several monofilaments of polymers of hydroxycarboxylic acids located in the guide tube, is characterized in that the inner surface of the tube and/or the surface of the monofilaments have an orientation aid for longitudinally oriented colonization with Schwann's cells.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: April 3, 2007
    Assignee: Deutsche Institute für Textil-und Faserforschung Stuttgart Stiftung des Oeffentlichen Rechts
    Inventors: Erhard Mueller, Helmut Hierlemann, Heinrich Planck, Burkhard Schlosshauer
  • Patent number: 6773459
    Abstract: A medical, bioresorbable implant, particularly for cruciate ligament augmentation, is constructed as a composite structure in textile construction from at least two biocompatible polymer materials, which differ in their chemical composition and/or polymer structure and which are degradable, the implant having a predetermined initial tensile stiffness and a different degradation behaviour of the polymers and/or the textile construction is selected in such a way that the tensile stiffness decreases during degradation.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: August 10, 2004
    Assignees: Deutsche Institute fuer Textil-und Faserforschung Stuttgart Stiftung des oeffentlichen Rechts
    Inventors: Martin Dauner, Helmut Hierlemann, Heinrich Planck, Lutz Claes, Lutz Duerselen, Anita Ignatius
  • Patent number: 6048947
    Abstract: A triblock terpolymer with a structure ABA formed from a biodegradable hard segment A and a biodegradable soft segment B has as the soft segment a statistical terpolymer with a completely amorphous structure. A process for its production comprises chemically reacting the hard segment monomer with hydroxy terminal groups of the soft segment B. The absorbable polymer is suitable for the production of a surgical suture material, which is wholly or partly formed from the polymer.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: April 11, 2000
    Assignee: Deutsche Institute fuer Textil- und Faserforschung Stuttgart Stiftung des Oeffentlichen Rechts
    Inventors: Sven Oberhoffner, Heinrich - Ing. Planck