Patents Assigned to Deutsche Institute für Textil-und Faserforschung,
Stuttgart
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Patent number: 7665682Abstract: 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: GrantFiled: February 25, 2005Date of Patent: February 23, 2010Assignee: Deutsche Institute fuer Textil- und Faserforschung Stuttgart Stiftung des oeffentlichen RechtsInventors: Gerd Stahlecker, Gernot Schäffler, Christoph Riethmüller
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Patent number: 7582108Abstract: 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: GrantFiled: October 27, 2004Date of Patent: September 1, 2009Assignee: Deutsche Institute für Textil-und Faserforschung Stuttgart Stiftung des Oeffentlichen RechtsInventors: Helmut Hierlemann, Maria Baumann, Markus Milwich, Heinrich Planck
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Patent number: 7198799Abstract: 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: GrantFiled: June 13, 2005Date of Patent: April 3, 2007Assignee: Deutsche Institute für Textil-und Faserforschung Stuttgart Stiftung des Oeffentlichen RechtsInventors: Erhard Mueller, Helmut Hierlemann, Heinrich Planck, Burkhard Schlosshauer
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Patent number: 6773459Abstract: 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: GrantFiled: September 12, 2001Date of Patent: August 10, 2004Assignees: Deutsche Institute fuer Textil-und Faserforschung Stuttgart Stiftung des oeffentlichen RechtsInventors: Martin Dauner, Helmut Hierlemann, Heinrich Planck, Lutz Claes, Lutz Duerselen, Anita Ignatius
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Patent number: 6370737Abstract: A drafting equipment is provided with a small double belt for spinning machines with a fiber bundling zone which follows the pair of output rollers of the main drafting field and is followed by a pair of delivery rollers. A pneumatic compression device is provided between the pair of output rollers and the pair of delivery rollers. A pneumatic compression device is provided with a small perforated belt and a suction device extending on the side of the belt away from the fiber sliver and which sucks air through the fiber sliver between the pair of output rollers and the pair of delivery rollers.Type: GrantFiled: July 10, 2000Date of Patent: April 16, 2002Assignee: Deutsche Institute für Textil-und Faserforschung, StuttgartInventors: Peter Artzt, Holger Zoudlik
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Patent number: 6186188Abstract: A coupling device for the releasable connection of a lifting element, in particular of a jacquard machine, to at least one lifting element of a warp thread in a weaving machine. The preferred coupling device connects a sinker cord of a jacquard machine to a harness cord of the harness of a weaving machine. The coupling device has a first coupling part assigned to the lifting element and a second coupling part assigned to the harness cord. The coupling parts execute a radial relative movement during coupling and uncoupling. The coupling device provides for rotational alignment of the two coupling parts with one another. At least one coupling part is assigned or capable of being assigned a rotational alignment mechanism. The coupling device is used in a system which rapidly connects and disconnects many connectors at the same time.Type: GrantFiled: August 30, 1999Date of Patent: February 13, 2001Assignee: Deutsche Institute für Textil und Faserforschung Stuttgart Stifftung des öffentlichen RechtsInventors: Hansjürgen Horter, Fritz Bayer, Rolf Guse
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Patent number: 6048947Abstract: 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: GrantFiled: October 8, 1997Date of Patent: April 11, 2000Assignee: Deutsche Institute fuer Textil- und Faserforschung Stuttgart Stiftung des Oeffentlichen RechtsInventors: Sven Oberhoffner, Heinrich - Ing. Planck