Processing platinum enhanced radiopaque stainless steel (PERSS®6) for use as balloon-expandable coronary Stents

被引：2

作者：

Dennis, JZ ^{[1
]}

Craig, CH ^{[1
]}

Radisch, HR ^{[1
]}

Pannek, EJ ^{[1
]}

Turner, PC ^{[1
]}

Hicks, AG ^{[1
]}

Jenusaitis, M ^{[1
]}

Gokcen, NA ^{[1
]}

Friend, CM ^{[1
]}

Edwards, MR ^{[1
]}

机构：

[1] Boston Sci Corp Intervent Technol, San Diego, CA 92123 USA

来源：

STAINLESS STEELS FOR MEDICAL AND SURGICAL APPLICATIONS | 2003年 / 1438卷

关键词：

coronary stent; stainless steel; platinum; vacuum induction melting; vacuum arc remelting; Sendzimir mill; PERSS;

D O I：

10.1520/STP11154S

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A platinum-enhanced variant of UNS S31673 stainless steel has been developed for use in fabricating balloon-expandable coronary stents. PERSS(R) is sufficiently radiopaque to be detected by current radiographic methods and maintains compliance with ASTM requirements. Boston Scientific Corporation/Interventional Technologies (BSC/IVT) has implemented a pilot program for the development of PERSS with the intent of achieving vertical integration of the manufacturing process. PERSS ingots containing 5 wt% platinum were cast by vacuum induction melting, refined by vacuum are remelting, upset in a forge, then hot and cold-rolled into sheet and foil. The sheet was cold-rolled on a 20-high cluster mill to a foil thickness of less than 0.25 mm (0.01 inches). While the final product otherwise meets the ASTM specification for UNS S31673 alloys, intentional addition of unspecified additional elements precludes its compliance with same.

引用

页码：61 / 71

页数：11