Process for producing bioresorbable implants
AssigneeUniversitaet Hannover
InventorsVolker Kaese, Arne Pinkvos, Heinz Haferkamp, Matthias Niemeyer, Friedrich-Wilhelm Bach
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Abstract
A process for producing implants made of a bioresorbable metal, particularly magnesium alloys or zinc alloys, in which the material properties of the magnesium or the zinc are changed and the processing and utilization properties are improved by combining process steps for adjusting the properties of the material and subsequent machining. In this way it is possible to produce thin-walled tubular implants, particularly blood vessel support stents, from bioresorbable magnesium or zinc alloys, which are readily deformable without the risk of fracture during implantation.
Claims17
A process for producing an implant made of a bioresorbable metal, said process comprising the steps of:
- producing a pin-shaped, semi-finished product from the bioresorbable metal by casting, heat treatment, and subsequent thermomechanical processing;
- cutting the semi-finished product in a longitudinal direction into at least two sections, and
- machining a respective section by a chip removing machining operation to produce a tubular implant.
Dependencies are inferred from the claim text.