This author has yet to write their bio.Meanwhile lets just say that we are proud Ken Perry contributed a whooping 29 entries.
Join me on the beautiful Monterey Coast at the Asilomar Conference Center for a unique and defining three-day conference focused on understanding, predicting, and optimizing the durability of cardiovascular implants. I’m talking on the second day about simulations and what we can learn from experimenting to increase confidence in predictions made with computational models. I’ll […]
Philosophy addresses issues that can’t be settled by facts alone, and the philosophy of science is the application of this approach to the domain of science [1]. More than ever we need philosophical analysis and perspective to realize the benefits of science, particularly in the realm of health and healing. We recently attended the Philosophy […]
Too many measurements aren’t made because they are difficult to make or inaccurate when made under live, realistic conditions. Digital Image Correlation (DIC) changes that and offers an efficient, non-contact way to measure motion and strain in real time. Use DIC as a non-contacting extensometer on flat or curved surfaces including wires during stress-strain tests. […]
The ability to make things, if only to quickly turn around and break them, is useful when advancing an idea or design. It’s common now for design teams to have a 3D printer at their disposal for mocking things up and sometimes even building useful stuff. With all the excitement about additive manufacturing, though, its […]
The Theory of Critical Distances (TCD) offers a powerful yet simple methodology for quantifying fatigue and fracture in real components. It involves making minor modifications to typical tensile specimens and testing them to fracture. Linear elastic finite element analysis is then performed on the modified geometries to obtain stress distance curves. Analysis of these curves […]
Many thanks to the organizers of the recent Fourth Symposium on Fatigue and Fracture of Metallic Medical Materials and Devices and especially to Brian Berg for shepherding the new ASTM F3211 Standard Guide for Fatigue-to-Fracture (FtF) Methodology for Cardiovascular Medical Devices into existence. The Fatigue-to-Fracture Symposium showcased some great examples of how companies have implemented […]
Come visit our both at the joint Biomedical Engineering Society (BMES) and the U.S. Food and Drug Administration (FDA) 2nd annual BMES/FDA Frontiers in Medical Devices Conference! This year the conference theme is: Innovations in Modeling and Simulation: Patient-Centered Healthcare. We are super excited to be in the exhibitor area this year to share our […]
What follow is an excerpt from a presentation given at an international workshop on cardiovascular device standards. It is a summary comparison of the three types of models used in the device approval process: Animal, Bench and Computational. We are grateful to Tina Morrison, Deputy Director, Division of Applied Mechanics at FDA, friend and fellow […]
Medical device manufacturers are actively developing cardiovascular stents where the stent platform is fabricated from absorbable materials that are intended to degrade. Recently, the first fully absorbable coronary stent was evaluated by an FDA Advisory Panel (March 15, 2016). There are great regulatory challenges associated with evaluating the mechanical durability of absorbable stents, because methods […]
Cardiovascular Implant DurabilityOctober 6, 2019 - 3:05 pm
Improving Medicine with Philosophy of ScienceNovember 9, 2018 - 3:19 pm
Digital Image Correlation for Medical ImplantsOctober 4, 2018 - 12:33 pm
Faster Learning Beats Better PlanningSeptember 5, 2018 - 5:23 pm
Theory of Critical Distances and Design ValidationJuly 5, 2018 - 5:23 pm