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Nanostim Inc.'s Mini Wireless Pacemaker Shows Promise in Study


5/9/2013 8:39:49 AM

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Nanostim Inc.’s miniaturized pacemaker, a device the size of a AAA battery placed entirely in the heart, appeared promising in its first human trials. The device from Nanostim, a closely held company that St. Jude Medical (STJ) has said it will acquire by year’s end, doesn’t have the wires typical of a pacemaker. Wires carry an electrical charge from a battery-powered generator in the chest to the ventricle to prompt a regular heartbeat. Nanostim’s device, threaded through the femoral artery into the heart, is powered by a built-in battery that can last eight to 17 years. The lack of wires known as leads removes a source of complications since they can become infected, dislodged or damaged, said Vivek Reddy, director of electrophysiology at Mount Sinai Hospital in New York, who yesterday presented the findings with the first three patients at the Heart Rhythm Society meeting in Denver.

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