Clement Klienstreuer, a professor of mechanical and aerospace engineering at North Carolina State University, is using computer simulation and fluid dynamics for designing experimental blood vessels, arteries, and bypass grafts. With funding from the National Institutes of Health and the National Science Foundation, he is heading up a team of vascular surgeons and engineers aiming to design a better arteriovenous access graft. The grafts serve as portals through which blood passes for kidney dialysis and other procedures. Conventional designs are Teflon-based and prone to frequent failure. One of the keys to the new graft is a graft hood, which complicates its design, but improves blood flow. For a copy of the paper describing the new graft geometry, contact Linda E. Rudd, North Carolina State University Engineering Publications at email@example.com or call (919) 515-3848.
Industrial workplaces are governed by OSHA rules, but this isn’t to say that rules are always followed. While injuries happen on production floors for a variety of reasons, of the top 10 OSHA rules that are most often ignored in industrial settings, two directly involve machine design: lockout/tagout procedures (LO/TO) and machine guarding.
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