Apple makes progress on no-prick blood glucose tracking for its watch

BLOOMBERG

Apple Inc. has a moonshot-style project underway that dates back to the Steve Jobs era: noninvasive and continuous blood glucose monitoring.
The goal of this secret endeavour — dubbed E5 — is to measure how much glucose is in someone’s body without needing to prick the skin for blood. After hitting major milestones recently, the company now believes it could eventually bring glucose monitoring to market.
Apple’s glucose monitoring system could ultimately find its way into the company’s smartwatch line.
If perfected, such a breakthrough would be a boon to diabetics and help cement Apple as a powerhouse in health care. Adding the monitoring system to Apple Watch, the ultimate goal, would make that device an essential item for millions of diabetics around the world.
Roughly 1 in 10 Americans have diabetes, and they typically rely on a device that pokes the skin for a blood sample. There are also patches from Dexcom Inc. and Abbott Laboratories that are inserted into the skin but need to be replaced about every two weeks.
Apple is taking a different approach, using a chip technology known as silicon photonics and a measurement process called optical absorption spectroscopy. The system uses lasers to emit specific wavelengths of light into an area below the skin where there is interstitial fluid — substances that leak out of capillaries — that can be absorbed by glucose.