Bend-capable tubular prosthesis

US9956098B2 · kind B2 · utility

Assignee

• C.R. Bard, Inc. · US

Inventors

• Martin Schlun · Landau in der Pfalz, DE
• Achim Zipse · Baden-Baden, DE
• Thilo Wack · Nonnweiler, DE
• Andreas Block · Lübeck, DE

Key dates

• Filing date: Oct 12, 2015
• Grant date: May 1, 2018
• Expiry date: Dec 2, 2035

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2250/0029
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A tubular prosthesis having a succession of turns around a longitudinal axis includes connectors between adjacent turns distributed around the circumference of the prosthesis. Each turn includes struts interspersed by inflection zones located at the axial ends of each turn such that, when the prosthesis expands radially, gaps open up between adjacent struts of each of the turn. The inflection zones are distributed regularly around the circumference so that the gaps are substantially the same size as each other around the circumference of the turn. The prosthesis may include a turn that exhibits a stagger zone within which the gap between adjacent struts is of an individual size different from that common to the other gaps of that turn. The inflection zones in that turn that lie circumferentially next to the stagger zone are displaced out of facing relationship with corresponding zones of inflection in the adjacent turn.