Patent · US Expired

Method for the manufacture of intraluminal stents of bioresorbable polymeric material

US5935506A · kind A · utility

117Cited by

13References

20Claims

0Family size

Assignee

Biotronik Mess -und Therapiegeraede GmbH & Co. Ingenieurbuero Berlin · DE

Inventors

Klaus-Peter Schmitz · Rostock, DE
Detlef Behrend · Jülich, DE

Key dates

Filing date	Oct 17, 1996
Grant date	Aug 10, 1999
Priority date	—
Expiry date	Oct 17, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S623/901
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A method for the manufacture of intravascular stents of bioresorbable material comprises the following steps: PA1 preparing a viscous solution of poly-.beta.-hydroxybutanoic acid as a bioresorbable polymeric material in a solvent, PA1 successively coating a male mold core with layers of the polymer solution in several steps by precipitation of the polymeric material by the solvent being evaporated and by the layer previously precipitated being dissolved at least partially for a homogeneous stent blank to build up, PA1 drawing the stent blank off the male mold core, and PA1 subsequently treating the stent blank to finish the shaping of the stent.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.