Biopolymers for endovascular use

Julio C. Palmaz

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


This article reviews the current status of polymeric graft materials used in stent grafts. The chemical structure, physical properties, and biological properties of polyethylene terephthalate (PET), polytetrafluoroethylene (PET), and polyurethane (PU) are described. Each polymer has specific advantages and disadvantages. Polymer thrombogenicity, porosity, tensile strength, and durability impact on endovascular applications. PTFE appears most suitable to small diameter grafts, while PET materials are used for large (>10 mm diameter) grafts. Endovascular grafts composed of PU are not currently available. The use of currently available polymeric graft materials for endovascular procedures requires careful matching of polymer properties with clinical applications.

Original languageEnglish (US)
Pages (from-to)13-19
Number of pages7
JournalSeminars in Interventional Radiology
Issue number1
StatePublished - Jan 1 1998


  • Endovascular implants
  • Stent grafts
  • Vascular polymers, properties

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine


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