Medtronic's Minimally Invasive Pacemaker the Size of a Multivitamin

Back in November, we wrote about a tiny pacemaker made by Silicon Valley startup Nanostim. Whereas traditional pacemakers require chest surgery and a pocket to implant the device in--the Nanostim pacemaker is implanted by making a simple incision in the thigh and snaking a catheter through an artery to the heart. Nanostim was approved for use in Europe, subsequently acquired by St. Jude Medical--and now it has competition. Medtronic recently announced they've successfully implanted a similar dev...