Stent

US6796998B2 · kind B2 · utility

Assignee

• Biotronik Mess -und Therapiegeraede GmbH & Co. Ingenieurbuero Berlin · DE

Inventors

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

Key dates

• Filing date: Oct 9, 2001
• Grant date: Sep 28, 2004
• Expiry date: Oct 17, 2022

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2230/0054
• 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 annular support portions (2, 2.1, 2.2, 2.3) comprising bar elements (3, 3.1, 3.2, 3.3) which are connected in the longitudinal direction of the stent by way of connecting bars (4, 4.1, 4.2), wherein the bar elements (3.1) of at least a first support portion (2.1) and a second support portion (2.2) in adjacent relationship in a first direction (6.1) extend in a meander configuration in the peripheral direction of the stent and the connecting bars (4, 4.1, 4.2) to the second support portion (2.2) engage in the region of the turning points (5, 5.2, 5.3) of the first support portion (2.1), which turning points face in the first direction (6.1), wherein at least two adjacent connecting bars (4.1, 4.2) engage respectively in the region of a turning point (5.1) of the second support portion (2.2), which turning point projects in a second direction (6.2) in opposite relationship to the first direction (6.1).