Intravascular functional element and system for such a functional element

US9668893B2 · kind B2 · utility

Assignee

• Admedes GmbH · US

Inventors

• Giorgio Cattaneo · Aachen, DE
• Werner Mailänder · Birkenfeld, DE

Key dates

• Filing date: Feb 11, 2014
• Grant date: Jun 6, 2017
• Expiry date: May 25, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61L31/088
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention relates to an intravascular functional element with a tubular grid structure (12) that has a wire (10) or several wires (10) respectively of an alloy with nickel and titanium as alloying elements, wherein a mixed oxide layer with a layer thickness of 15 nm to 100 nm and containing TiO2 and at least one nitride, especially titanium oxynitride and/or titanium nitride, is formed on the surface of the wire or on the surface of the wires (10)/of the wires (10), wherein the grid structure forms cells of mutually crossing wires (10) or wire segments of the wire (10) in longitudinal direction and in circumferential direction respectively and in circumferential direction there are disposed at least 6 cells, especially at least 12 cells, especially at least 16 cells, especially at least 24 cells, especially at least 36 cells, especially at least 48 cells.