Implant and method for manufacturing same

摘要

The present invention relates to a method for manufacturing an implant, in particular an intraluminal endoprosthesis, with a body containing metallic material, preferably iron. The method includes the following steps to control degradation of the implant: (i) providing the body of the implant; and (ii) tribochemically treating at least part of the body surface by means of beam particles. An implant produced in this way is also described.

主权项

1. A method for manufacturing an implant, optionally an intraluminal endoprosthesis, having a body containing metallic material, optionally iron, comprising the following steps:
i) providing an implant body; ii) micro-roughening a surface of the implant body by beaming electrically conductive particles against the implant body, wherein the electrically conductive particles adhere to the micro-roughened surface of the implant body, wherein the electrically conductive particles are selected from the group consisting of TiN, TiC, TiCN, and CuZn; iii) tribochemically treating at least part of the micro-roughened surface by beaming granular salt particles against the micro-roughened surface to adhere the salt particles to the micro-roughened surface to initiate corrosion of the implant body under moist environmental conditions, wherein the salt particles are selected from the group consisting of NaCl, CaCl2, MgCl2 and dry-stored MgCl2; and v) storing the implant body in an air free environment that temporarily prevents or reduces corrosion of the implant body by the adhered salt particles.