Tubular implant
AssigneeDeutsche Institute für Textil-und Faserforschung Stuttgart Stiftung des Oeffentlichen Rechts
InventorsHelmut Hierlemann, Maria Baumann, Markus Milwich, Heinrich Planck
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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.
Claims15
A tubular implant in the form of a round braid composed of threads of biocompatible material extending in oppositely directed helices and crossing over each other, wherein thread areas located at the tube ends are free from thread ends, and threads present there are guided back into the braid structures,
- wherein thread areas at at least one tube end are turned back in a loop shape, forming a U-turn, and are guided back in the same helix,
- wherein each helix is made up of at least two threads, in particular two threads lying parallel alongside one another,
- wherein at at least one tube end, one thread area is turned back at 60 to 120° and one thread area from the same helix is turned back at 150 to 300° as a cross-over loop, and the looped thread is guided back in the directly contiguous return helix, and the thread turned back only in a U-shape is guided back in the succeeding parallel return helix, wherein the thread areas angled in a U-shape and the thread areas formed as cross-over loops alternate at the tube end and wherein the threads are monofilaments.
Dependencies are inferred from the claim text.