Dublin-based Medtronic plc has filed a PMA supplement with the U.S. FDA for its next-generation, implantable sacral neuromodulation (SNM) device, Interstim Micro, and for its Interstim Surescan MRI leads. Interstim Micro is intended to help patients with overactive bladder (OAB), urinary urge incontinence, unobstructed urinary retention and fecal incontinence (FI).