Gastrointest Interv.  2016 Jul;5(2):98-104. 10.18528/gii160008.

The challenges: Stent materials from the perspective of the manufacturer

• Volenec K
• Pohl I

• KMID: 2349111
• DOI: http://doi.org/10.18528/gii160008

Abstract

The article presents an overview of the basic data influencing the choice of materials for the manufacture of self-expanding metallic stents to be implanted into gastrointestinal tract, particularly esophageal stents. The data are evaluated primarily in terms of the manufacturer of stents. The text emphasizes not only the importance of the materials themselves, but also the biological environment in which the stent is used. Brief history of materials used in gastrointestinal stents mentions stainless steel, cobalt-chromium and nickel titanium alloys and polymers (polyester and polydioxanone). The text describes the properties of metal materials (composition, corrosion, mechanical properties) with particular focus on nickel-titanium alloy"”nitinol. It lists advantages and disadvantages of nitinol. At the end of the review the authors briefly present their opinion on future materials of gastrointestinal stents and their covering.

Keyword

Biocompatible materials; Biomedical and dental materials; Nitinol; Self expandable metallic stents; Stents

MeSH Terms

Alloys
Biocompatible Materials
Biomedical and Dental Materials
Corrosion
Gastrointestinal Tract
Nickel
Polymers
Self Expandable Metallic Stents
Stainless Steel
Stents*
Titanium
Alloys
Biocompatible Materials
Biomedical and Dental Materials
Nickel
Polymers
Stainless Steel
Titanium