Abstract:

BACKGROUND: Wireless signal telemetry system participates in the information exchange inside and outside visual cortex prosthesis. In order to enable prosthesis to effectively stimulate by multi-targets in the intended region, a variety of diverse extracorporal stimulative signals are needed.
OBJECTIVE: To propose a design proposal of a wireless simultaneous-signal transmission system.
METHDOS: The proposal can transmit simultaneous signal in one channel using the technology of Frequency Division Multiplexing. The whole system design is divided into extracorporal transmission circuit and intracorporal receiving circuit and the latter adopts passive design to reduce the harm of energy supply to the implants. As providing the specific circuit design, we analyze the factors affecting transmission efficiency and validate its feasibility by multisim simulation experiment.
RESULTS AND CONCLUSION: The multichannel signal wireless telemetry system can be applied to the part of signal transmission of various implantable prostheses, which employs passive design to reduce the harm of energy supply to the implants. Preliminary simulated experiments showed the feasibility of this system, which exhibits a wide range of promising applications.