Zarlink Semiconductor (Ottawa, ON, Canada) has shipped more than 30,000 modules incorporating the ZL70101 radio system-on-a-chip to St. Jude Medical (St. Paul, MN). Zarlink says that the product enables wireless performance in medical devices that support advanced monitoring, diagnostic, and therapeutic applications. The ZL70101 is the first chip designed to exclusively operate in the Medical Implantable Communication Service (MICS) band. St. Jude says that the technology, designed for use in both implanted medical devices and external instruments, will provide the ability to monitor patients outside the clinical setting.