High-Density Brain-Computer Interfaces (BCIs) are advanced neurotechnology systems that enable direct communication between the brain and external devices. These interfaces can capture neural signals from thousands of electrode channels, providing high-bandwidth data transfer.
These interfaces address the need for more precise control and detailed information from brain signals in applications like paralysis recovery, where traditional BCI systems may not provide sufficient detail or bandwidth.
High-Density BCIs use thin-film flexible polymer arrays implanted in specific regions of the motor cortex to record neural activity. The electrodes are designed to be highly dense, allowing for a large number of recording sites and thus higher bandwidth communication with external devices such as prosthetics or computers.
Manufacturing involves creating thin-film flexible polymer arrays with a high density of electrodes. The process requires advanced microfabrication techniques to ensure precision and reliability.
The build process includes designing the electrode array, depositing materials onto flexible substrates, patterning the electrodes, and encapsulating them in biocompatible coatings. This is followed by implantation into the brain tissue via minimally invasive surgical procedures.
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