Reliability Assessment of Superelastic Medical Devices
A series of phase shifted moire interferograms showing a NiTi dogbone experiencing increased tensile loading. The two images on the right exhibit clear [...]
LifeStent NT Self-Expanding Helical Stent
The 6F LifeStent NT is an implantable self-expanding nickel titanium alloy (Nitinol) stent. The stent is manufactured from small diameter Nitinol tubing and is [...]
Intrapreneuring and the Intelligent Organization
Imagine running your own business WITHIN a large corporation. You and a handful of colleagues making every decision about how and what work you [...]
Effects of Notches and Grain Size on Transformations in Nitinol
In this paper, we present a research methodology to characterize the effects of crystallographic orientation and grain size on the deformations and transformations in [...]
FEA and Experimental Evaluation of Superelastic Stent
The mechanical properties of Nitinol stents are normally evaluated experimentally due to complexities resulting from large deformations and material nonlinearity. Despite difficulties associated with [...]
Simulating Radiofrequency Ablation
I became interested in simulating the effects of RF ablation as early as 1998 when I did some work for St. Jude Medical. What [...]