Sorin Group president Stefano Di Lullo tells MassDevice.com about the European juggernaut’s plans to boost its footprint in the U.S. market for medical devices with its innovative SonR technology. Sorin Group (BIT:SRN) is an established leader in the cardiac rhythm management space, but in the U.S. it’s a back-bencher compared with more established competitors like Medtronic (NYSE:MDT), Boston Scientific (NYSE:BSX) and St. Jude Medical (NYSE:STJ). That’s all about to change, if Stefano Di Lullo has anything to say about it.