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In July 2016, two cardiologists and a handful of computer scientists and developers rolled up in a minivan to Apple’s special projects office in Cupertino, Calif., with a big idea to show a company with grand designs on transforming health care.

The team from Johns Hopkins University had received a rare invitation from Apple to workshop their mock-ups for Corrie, an app to guide heart attack patients through the maze of recovery. For a week, Apple and the Hopkins team labored on the design, carefully talking through the minutiae of each feature.


Corrie is designed to make everything that’s hard about managing recovery after a heart attack far easier for patients — and, in turn, keep them out of the hospital. Once home, the app helps track their vital signs and activity data with the help of an Apple Watch and a Bluetooth blood pressure cuff. It sends reminders when a patient needs to take a pill or head in for a follow-up appointment, and also serves as a hub of critical health information, including guidance on diet and exercise, that’s often lost in the chaos of a hospital discharge.

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