Composite ePTFE-silicone covering for stent

US8974622B2 · kind B2 · utility

Assignee

• Boston Scientific Scimed, Inc. · US

Inventors

• Claude O. Clerc · Marlboro, US
• Gerald Fredrickson · Westford, US
• Ralph J. Barry, Jr. · Hudson, US
• Paul K. Norton · Lunenburg, US
• Kurt Geitz · Sudbury, US
• Mike Madden · Princeton, US

Key dates

• Filing date: Dec 22, 2011
• Grant date: Mar 10, 2015
• Expiry date: Mar 27, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29L2031/758
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A medical device consists of a stent having a first surface and a second surface parallel to the first surface; a single expanded polytetrafluoroethylene (ePTFE) layer contacting the first surface of the stent; and an elastomeric layer applied to at least one surface of the stent. In at least one embodiment, the elastomeric layer is silicone. In at least one embodiment, the medical device is manufactured by positioning the ePTFE layer such that a first surface of the ePTFE layer contacts a first surface of the stent to form a stent-ePTFE assembly; and applying an elastomeric solution to the first surface of the ePTFE layer and at least one surface of the stent.