A miniature wireless radio module has been developed specifically for implantable medical devices such as pacemakers, cardiac defibrillators and neurostimulators. The model ZL70323 module measures just 5.5 × 4.5 × 1.5 mm and complements the firm’s ZL70120 module at the other side of the communications link. The module employs a low-power transmitter and receiver operating in the Medical Implantable Communications Service (MICS) band at 402 to 405 MHz, along with a 24-MHz crystal reference oscillator and surface-acoustic-wave (SAW) filters. It includes a “wake-up” receiver at 2.45-GHz which can be used as needed. The module communications health status data and, with its small size, can be implanted with only extremely small incisions required.
Microsemi Corp., One Enterprise, Aliso Viejo, CA 92656; (800) 713-4113, (949) 380-6100