28 Results for 'Surgery'
Regenerating heart valves
The human heart beats approximately 35 million times every year, pumping blood into the circulation via four different heart valves. In more than four million people each year, heart valves fail for different reasons, including birth defects, age-related deteriorations and infections. At present, clinicians use either artificial prostheses or fixed animal and cadaver-sourced tissue to...
Recent decades have seen rapid development in the manufacture of microelectromechanical systems (MEMS) at the micrometer scale, mostly based on silicon wafer processing techniques, with characteristic length scales of millimeters to nanometers. However, standard MEMS techniques are often inappropriate for producing machines with complex 3D topologies and varied constituent materials at the mesoscale, at sizes...
Video/AnimationBioinspired Blood Repellent CoatingIn this video, Wyss Institute Founding Director Don Ingber, Core Faculty member Joanna Aizenberg, Staff Scientist Dan Leslie and Postdoctoral Fellow Anna Waterhouse explain how a coating they developed using FDA-approved materials could prevent blood clotting in medical devices without the use of blood thinners. Credit: Wyss Institute at Harvard University