Invention Grant
- Patent Title: Method for producing a small thin-walled tube from a magnesium alloy
- Patent Title (中): 从镁合金制造小型薄壁管的方法
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Application No.: US13321427Application Date: 2010-05-19
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Publication No.: US09227235B2Publication Date: 2016-01-05
- Inventor: Alois Birgmann , Martin Brandecker , Maria Kuehlein , Thomas Waltenberger
- Applicant: Alois Birgmann , Martin Brandecker , Maria Kuehlein , Thomas Waltenberger
- Applicant Address: AT Ranshofen
- Assignee: LKR LEICHTMETALLKOMPETENZZENTRUM RANSHOFEN GMBH
- Current Assignee: LKR LEICHTMETALLKOMPETENZZENTRUM RANSHOFEN GMBH
- Current Assignee Address: AT Ranshofen
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: ATA780/2009 20090519
- International Application: PCT/AT2010/000171 WO 20100519
- International Announcement: WO2010/132910 WO 20101125
- Main IPC: B21D22/00
- IPC: B21D22/00 ; B21C1/00 ; B21C23/18 ; B21C1/24 ; B21C37/30 ; B21C1/26 ; B21C3/04 ; B21C3/16 ; B21C9/00 ; B21G1/08 ; A61F2/82

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 (2) with a base body (3) and a mandrel (4) tapered relative to the base body (3) 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 (4), after which the blank with inserted mandrel (4) with the male die (2) is pressed forwards at least in part through a female die (5) with a receiving region (6) and a contouring region (7), wherein the contouring region (7) has a free diameter, which is larger than the outer diameter of the mandrel (4), but smaller than an outer diameter of the blank, in order to form the small tube.
Public/Granted literature
- US20120125070A1 METHOD FOR PRODUCING A SMALL THIN-WALLED TUBE FROM A MAGNESIUM ALLOY Public/Granted day:2012-05-24
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