@williamlweaver: Actually, as Ann's article points out, the polyurethane is pyrolized before the CVD is carried out, so the tantalum is deposited on a carbon substrate. The resulting structure is said to be 99% tantalum and 1% carbon by weight.
I waited but it wasn't until the end they used the word "nano." I think this is key. To incorporate this material into the body permanently, it would seem that the merging of metal an tissue couldn't be on a surface only. It needs to be throughout the device just as the normal body parts are. Clever lads!
I hope this method also finds its way to other areas- broken bones, hips, etc. What a great idea!
Wow. The fact that the application is for spine implants is impressive enough, but I'm impressed by the manufacturing process. Using a polymer substrate as a vapor deposition mold is awesome. --- Sort of like metal-infused ceramic, cermet, but with a polymer substrate - a "polymet" if you will. As we continue to see a miniaturization of electronics components, perhaps bio-compatible materials such as this will benefit from an increasing availability of tantalum...
Perfect timing for the aging baby boomer generation which wants to stay active and fit, and is thus a regular fixture at the orthopedist. This type of implant seems like it could do wonders for the all hip replacements, knee replacements and other rites of passage this generation seems to be encountering given their commitment to staying youthful.
Altair has released an update of its HyperWorks computer-aided engineering simulation suite that includes new features focusing on four key areas of product design: performance optimization, lightweight design, lead-time reduction, and new technologies.
At IMTS last week, Stratasys introduced two new multi-materials PolyJet 3D printers, plus a new UV-resistant material for its FDM production 3D printers. They can be used in making jigs and fixtures, as well as prototypes and small runs of production parts.
In a line of ultra-futuristic projects, DARPA is developing a brain microchip that will help heal the bodies and minds of soldiers. A final product is far off, but preliminary chips are already being tested.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.