Getting Health Data from Inside Your Body - Technology Review

"Hugo Campos believes that patients with implanted medical devices deserve access to the data they collect....He wants access to the data being collected inside his body by an implanted cardiac defibrillator. He believes that having this information could help him take control of his health —for example, by helping him figure out what triggers his frequent attacks of abnormal heart rhythms. While not life-threatening, they cause dizziness, fainting, and chest pain. But he says device makers are reluctant to make that information available, mostly for commercial reasons....[M]anufacturers have told him that the device is implanted to deliver therapy, not to provide information to the patient. And doing so is not part of their business model....Another obstacle to open access, he adds, is that the information is incredibly valuable...."