3D-Printed Sugar-Based Stents Facilitating Vascular Anastomosis

Ali Farzin, Amir K. Miri, Fatemeh Sharifi, Negar Faramarzi, Arian Jaberi, Azadeh Mostafavi, Ricky Solorzano, Yu Shrike Zhang, Nasim Annabi, Ali Khademhosseini, Ali Tamayol

Research output: Contribution to journalArticlepeer-review

35 Scopus citations


Microvascular anastomosis is a common part of many reconstructive and transplant surgical procedures. While venous anastomosis can be achieved using microvascular anastomotic coupling devices, surgical suturing is the main method for arterial anastomosis. Suture-based microanastomosis is time-consuming and challenging. Here, dissolvable sugar-based stents are fabricated as an assistive tool for facilitating surgical anastomosis. The nonbrittle sugar-based stent holds the vessels together during the procedure and are dissolved upon the restoration of the blood flow. The incorporation of sodium citrate minimizes the chance of thrombosis. The dissolution rate and the mechanical properties of the sugar-based stent can be tailored between 4 and 8 min. To enable the fabrication of stents with desirable geometries and dimensions, 3D printing is utilized to fabricate the stents. The effectiveness of the printed sugar-based stent is assessed ex vivo. The fabrication procedure is fast and can be performed in the operating room.

Original languageEnglish (US)
Article number1800702
JournalAdvanced Healthcare Materials
Issue number24
StatePublished - Dec 19 2018


  • 3D printing
  • dissolvable stents
  • personalized surgical tools
  • sugar-based materials
  • vascular anastomosis

ASJC Scopus subject areas

  • Biomaterials
  • Biomedical Engineering
  • Pharmaceutical Science


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