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:
Jan. 05, 2016
Filed:
May. 19, 2010
Alois Birgmann, Moosdorf, AT;
Martin Brandecker, St. Peter, AT;
Maria Kuehlein, Stubenberg, DE;
Thomas Waltenberger, Braunau am Inn, AT;
Alois Birgmann, Moosdorf, AT;
Martin Brandecker, St. Peter, AT;
Maria Kuehlein, Stubenberg, DE;
Thomas Waltenberger, Braunau am Inn, AT;
LKR LEICHTMETALLKOMPETENZZENTRUM RANSHOFEN GMBH, Ranshofen, AT;
Abstract
The invention relates to a method for producing a small thin-walled tube for a medical application or for a medical product, in particular for a stent, wherein a blank of an in particular bioresorbable magnesium alloy is deformed to produce a small tube, after which the small tube is used for medical purposes or from which the medical product, such as a stent, can be made. In order to be able to produce the small tube in one step and with high precision, it is provided according to the invention that a male die () with a base body () and a mandrel () tapered relative to the base body () and the blank is provided with a blind hole or an opening, wherein a diameter of the blind hole or the opening of the blank is equal to or greater than an outer diameter of the mandrel (), after which the blank with inserted mandrel () with the male die () is pressed forwards at least in part through a female die () with a receiving region () and a contouring region (), wherein the contouring region () has a free diameter, which is larger than the outer diameter of the mandrel (), but smaller than an outer diameter of the blank, in order to form the small tube.