The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 25, 2012
Filed:
Jun. 27, 2007
Eckhard Quandt, Heikendorf, DE;
Clemens Schmutz, Köln, DE;
Christiane Zamponi, Kiel, DE;
Acandis GmbH & Co. KG, Pfinztal, DE;
Abstract
A method for the production of a structured metal layer () made from an alloy composed of titanium and nickel includes the following process steps: a sacrificial layer composite () is provided, which comprises a second sacrificial layer () applied onto a first sacrificial layer (), the first sacrificial layer () is subjected for the purpose of structuring to a wet-chemical etching process in such a manner that undercutting of the sacrificial layer () occurs, a metal layer () of the alloy is applied indirectly or directly to the structured sacrificial layer composite (). The first sacrificial layer () is at a greater distance from the metal layer (). The second sacrificial layer () facing the metal layer () to be deposited is subjected to a dry etching process prior to wet-chemical etching of the first sacrificial layer () so that the second sacrificial layer () is provided with a structure that corresponds to the desired structure of the metal layer (). The invention further relates to an object, particularly a stent or an implant, which comprises at least one metal layer () that is produced by applying the method for the production of the structured metal layer ().