St. Jude Medical Inc. has received approvals from the US Food and Drug Administration (FDA) and European CE Mark for its Eon Mini, the world’s smallest, longest-lasting, rechargeable neurostimulator to treat chronic pain of the trunk or limbs and pain from failed back surgery. The Eon Mini neurostimulator is marginally larger than the circumference of a U.S. silver dollar, has a thin 10 mm profile and weighs 29 grams (approximately 1.0 oz.). Its small size allows for a smaller incision, which gives physicians increased flexibility in selecting the implant location and is intended to make the site less visible and more comfortable for patients.