Waltham, MA —A new electromechanical driver nicknamed "Magscrew" may drive the next generation of totally artificial hearts. Working with the Cleveland Clinic Foundation, medical technology developer Foster-Miller is testing the driver for use in a pulsatile artificial heart. "As the name implies, Magscrew converts rotary motion into linear actuation using state-of-the-art permanent magnets," says Foster-Miller Business Manager Blair Hough.
The driver is similar to a common nut and screw, but replaces mechanical threads with helical magnets. As the magnets on the internal diameter of the nut rotate clockwise and counter-clockwise, they interact with a similar magnetic helix on the plunger to create linear motion. The back and forth motion pushes on left and right pump diaphragms that eject blood.
"During the fill phase, the pump diaphragms are free floating to have maximum sensitivity to venous pressure," says Hough.
The pump requires less than 15 watts of power during normal operation. "That's about two-thirds the power requirements of our competition," says Hough.
The artificial heart project is supported by the National Heart, Lung, and Blood Institute for advances in otherwise untreatable heart failure.
Truchard will be presented the award at the 2014 Golden Mousetrap Awards ceremony during the co-located events Pacific Design & Manufacturing, MD&M West, WestPack, PLASTEC West, Electronics West, ATX West, and AeroCon.
In a bid to boost the viability of lithium-based electric car batteries, a team at Lawrence Berkeley National Laboratory has developed a chemistry that could possibly double an EV’s driving range while cutting its battery cost in half.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.