Stent

US6976993B2 · kind B2 · utility

Assignee

• Biotronik Mess-und Therapiegeraete GmbH & Co. · DE

Inventors

• Daniel Lootz · Rostock, DE
• Karsten Koop · Rostock, DE
• Curt Kranz · Berlin, DE
• Max Schaldach · Erlangen, DE

Key dates

• Filing date: Oct 9, 2001
• Grant date: Dec 20, 2005
• Expiry date: Oct 9, 2021

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2002/9155
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A stent, in particular a coronary stent, for expansion from a first condition into an expanded second condition in which it holds a vessel in an expanded state, comprising a tubular body whose peripheral surface (1) is formed by a number of support portions (2) which extend in the longitudinal direction of the stent and which comprise bar elements (3) which are connected by way of connecting bars (4), wherein there is provided a number of support portion groups (1.1) with at least a first support portion (2.1) and a second support portion (2.2, 2.3) in adjacent relationship in the peripheral direction of the stent, whose bar elements (3.1, 3.2, 3.3) extend in a meander configuration in the longitudinal direction of the stent, and wherein the first engagement points (4.1, 4.2) of first connecting bars (4) engage the first support portion (2.1) and the second engagement points (4.2, 4.4) of the first connecting bars (4) engage the second support portion (2.2, 2.3), wherein the first and second engagement points (4.1, 4.3, 4.2, 4.4) of the first connecting bars (4) are spaced from each other in the longitudinal direction of the stent and the first connecting bars (4) are of such a con…