A System Prototype for Portable Wireless Medical Devices

This paper presents a system prototype for portable wireless medical devices. An ASIC possessing physiological signal sensing is included. A multi-parameter communication protocol is employed to provide various functions and operation modes to satisfying different applications. LSK (load shift keying) is adopted to carry out no-battery wireless communication. The proposed design can be easily modified in implantable application if appropriate bio-compatible packaging is utilized.