Project TitleLiquid Cast Biodegradable Drug Delivering Arterial Stent
Track Code2008-176
Short Description

A biodegradable polymer stent that molds to a freshly angioplastied artery and is designed to release therapeutic drugs locally. 

#healthcare #cardiology #materials #polymer #drugdelivery #stent #therapeutics


Northwestern researchers have developed a novel complement for angioplasty. Their technology is a liquid drug-eluting biodegradable stent that polymerizes in vivo and molds to the contour of the freshly angioplastied artery. In addition to serving as a physical stent, its make-up is a biocompatible elastomeric citric acid-based polymer that releases nitric oxide (NO) when placed in the circulation. NO provides several benefits, including the inhibition of platelet aggregation and vascular smooth muscle cell proliferation as well as the stimulation of endothelial cell growth. NO is also a potent vasodilator. Through these functions, NO protects the freshly angioplastied artery from thrombosis and promotes vascular healing. This stent may be delivered by a triple balloon infusion/occlusion catheter, a separate invention that was also developed by Dr. Kibbe specifically for this project (NU2008-175).

TagsTHERAPEUTICS: drug delivery, HEALTHCARE: stent, MATERIALS: polymer, cardiology
Posted DateNov 30, 2011 10:28 AM


Melina Kibbe
Guillermo Ameer




  • Custom to the individual artery
  • Complete coverage of arterial surface reducing thrombogenic potential 
  • Increased surface area for drug delivery 
  • Simple to deliver 
  • Cost-effective
  • Degradable, leaving prosthetic-free artery
  • Successful in vivo model


IP Status

An international patent has been filed.

Contact Information

Michael Moore, PhD
Invention Manager
(p) (847) 491-4645