Patent · US Active

Implant and method for manufacturing same

US8512483B2 · kind B2 · utility

2Cited by

2References

14Claims

0Family size

Assignee

BIOTRONIK VI Patent AG · CH

Inventors

Ullrich Bayer · Bad Doberan, DE
Bodo Gerold · Zellingen, DE

Key dates

Filing date	Jul 14, 2010
Grant date	Aug 20, 2013
Priority date	—
Expiry date	Aug 11, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC23C8/32
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The present invention relates to a method for manufacturing an implant, in particular an intraluminal endoprosthesis, having a body containing metallic material, preferably iron. For controlling the degradation of the implant the method includes the following steps: (a) providing a first part of the implant body; and (b) performing heat treatment which alters the carbon content and/or the boron content and/or the nitrogen content in the structure of a near-surface boundary layer in the first part of the implant body in such a way that strain on the lattice or a lattice transformation, optionally following a subsequent mechanical load, is achieved in the near-surface boundary layer. Such an implant is also described.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.