Patent · US Active

Implant and method for manufacturing same

US9700440B2 · kind B2 · utility

0Cited by

7References

22Claims

0Family size

Assignee

BIOTRONIK VI Patent AG · CH

Inventors

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

Key dates

Filing date	Jul 8, 2013
Grant date	Jul 11, 2017
Priority date	—
Expiry date	Mar 14, 2035

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.