Removable airway stent could revolutionize surgery
A knitted rag sock inspired this professor and MD to develop a stent that can easily be removed after it has done its job.

Two years ago MD/PhD Erney Mattsson from the Norwegian University of Science and Technology (NTNU) launched a new type of stent for use in blood vessels. Now he and his colleagues are in the process of attempting to use the same type of stent in the respiratory tract.