Abstract:
A sensor senses a characteristic of an environment, e.g., humidity. The sensor has a substrate with strips of material that is sensitive to corrosion as a result of the characteristic. The strips are configured to respond differently to the characteristic. By means of repeatedly measuring the resistances of the strips, the environment can be monitored in terms of accumulated exposure to the characteristic. The strips are manufactured in a semiconductor technology so as to generate accurate sensors that behave predictably.
Abstract:
An apparatus and method for improving electrical contact between an implanted device (10) for recording or stimulating neuronal activity and surrounding tissue (12) (e.g., brain tissue, nerve fibers, etc.). In an exemplary embodiment, a nanometer sized topographic structure (36, 136) (e.g., a nanometer scale pillar) is processed for electrical connection with a corresponding electrode (30, 32) of the implanted device (10). The nanometer scale topographic structure (36, 136) bridges a gap (26) between the implanted device (10) and surrounding tissue (12), thus improving neuron-electrode coupling therebetween. The present disclosure can also be extended to any application where capacitive coupling to single or multiple cells (20) can be used for sensing and/or stimulation thereof.
Abstract:
An apparatus and method for electrostimulation treatment of neurological diseases is disclosed herein. The apparatus and method include an array (22) of sub-micron (and sub-cell size) FET electrodes (24) that are capacitively coupled to nervous system elements (both neurons (50) and axons (66)) as a replacement for traditional metal shanks in both single- and multi-electrode(s) electrostimulation implantable devices. By using such an approach, significant improvements in selectivity, power consumption and biocompatibility can be achieved, as well as relying on mainstream IC manufacture techniques for the manufacture thereof, making it cost-effective. The present disclosure can also be extended to any application where capacitive coupling to single or multiple cells can be used for sensing and/or stimulation thereof.