Terry Blumenthal is not a medical device designer, but he has an important message for engineers who design defibrillators. The Wake Forest University psychologist is working with cardiologist Charles Swerdlow to find ways of reducing the painful electric shock administered by defibrillators when they activate. "We considered using weaker electric shocks, but that didn't work," says Swerdlow. "Then we tried changing the shape of the waveform, but that has not yet been successful," he explains. They eventually found that when a painless electric "pre-pulse" precedes a painful electric shock, the pre-pulse seems to reduce the body's startle response and minimize pain. "The pre-pulse interrupts everything, including the subsequent processing of pain," says Blumenthal. "It diminishes the neural circuits' ability to respond to subsequent painful stimulus," he says. Testing the hypothesis involved delivering 150V shocks to volunteers, who then rated the shock's painfulness with and without pre-pulses. Although volunteers received the same shock, the painfulness was rated lower with the pre-pulse. "There may be a variety of ways to integrate these finding into other applications using sound, sight, and other modalities," says Blumenthal. For more information, e-mail email@example.com.
A few weeks ago, Ford Motor Co. quietly announced that it was rolling out a new wrinkle to the powerful safety feature called stability control, adding even more lifesaving potential to a technology that has already been very successful.
It won't be too much longer and hardware design, as we used to know it, will be remembered alongside the slide rule and the Karnaugh map. You will need to move beyond those familiar bits and bytes into the new world of software centric design.
People who want to take advantage of solar energy in their homes no longer need to install a bolt-on solar-panel system atop their houses -- they can integrate solar-energy-harvesting shingles directing into an existing or new roof instead.
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.