RESUMO
We developed and fabricated a micro-imager based on wireless intra-brain communication using conductive property of living tissues. An pixel array, analog-to-digital converter and transmitter are integrated on a single chip. The dimensions of the chip are 1 mm × 1mm × 0.15 mm. We demonstrate wireless image transmission through phosphate buffer saline as a brain phantom.
Assuntos
Conversão Análogo-Digital , Encéfalo/patologia , Neuroimagem/instrumentação , Próteses e Implantes , Processamento de Sinais Assistido por Computador/instrumentação , Animais , Eletrodos , Desenho de Equipamento , Ouro/química , Humanos , Microcomputadores , Neuroimagem/métodos , Oscilometria , Imagens de Fantasmas , Reprodutibilidade dos Testes , SoftwareRESUMO
We demonstrate image signal transmission for wireless intra-brain communication. As a preliminary experiment, transmission characteristics of the brain phantom were measured. The baseband output signal from an implantable complementary metal-oxide-semiconductor (CMOS) image sensor is transmitted through the phantom. The image was successfully reproduced from the received signal.