Microsystems dedicated to wireless multichannel monitoring and microstimulation: design, test and packaging

This invited paper covers circuit techniques and design methods employed to build high reliability systems dedicated to implement implantable and wirelessly controlled smart medical devices such as sensors and microstimulators. A global view of typical microdevices such us neural signals monitoring device, cortical multichannel stimulator, as well as peripheral nerve interfaces to recuperate bladder functions, is given. In addition, case studies related to peripheral and cortical neural systems are reported. In all these devices, special attention is paid to low-power management of involved systems and to the design of corresponding circuits of such typical implantable multidisciplinary microsystems.