Anti-thrombogenic medical devices and methods

US11406514B2 · kind B2 · utility

Assignee

• Covidien LP · US

Inventors

• Xiaodong Ma · Hudson, US
• Min-Shyan Sheu · Chelmsford, US
• Lincoln Eramo · San Clemente, US
• John Wainwright · Modjeska, US
• Junwei Li · Beijing, CN

Key dates

• Filing date: Nov 16, 2020
• Grant date: Aug 9, 2022
• Expiry date: Nov 16, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B05D3/142
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Methods for forming an expandable tubular body having a plurality of braided filaments including a first filament including platinum or platinum alloy and a second filament including cobalt-chromium alloy. The methods include applying a first phosphorylcholine material directly on the platinum or platinum alloy of the first filament and applying a silane material on the second filament followed by a second phosphorylcholine material on the silane material on the second filament. The first and second phosphorylcholine materials each define a thickness of less than 100 nanometers.