Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Neural prostheses"”.
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Supramolecular architectures for neural prostheses
Neural prosthetic devices offer a means of restoring function that have been lost due to neural damage. The first part of this thesis investigates the design of a 15-channel, low-power, fully implantable stimulator chip. The chip is powered wirelessly and receives wireless commands. The chip …
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A miniature, implantable wireless neural stimulation system
… this thesis, I present the design of a wireless neural stimulation system. The system consists of an external transmitter, controllable through a computer interface, and a miniature, implantable wireless receiver and stimulator. The implant is tailored for use in zebra finches - small birds …
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Brain microelectrode array systems
… the design and the manufacturing processes. Neural activity was successfully recorded. Future work is required in order to refine and further automate the processes. Similar devices could one day develop into neural prostheses for clinical use by outputting motor intent captured from brain …
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An energy-efficient wireless data link for implantable electronics
… for the development of long-term implantable neural prostheses. Furthermore, in implanted systems with many neural recording electrodes, the data rate of the wireless link will need to be quite high since each recording electrode can produce about 120 kbps of data. For low-power operation, …
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Chemical vapor deposition and functionalization of fluorocarbon-organosilicon copolymer thin films
Neural prostheses are micron-scale integrated circuit devices that are under development for the treatment of brain and spinal cord injuries. A key challenge in the fabrication of these silicon- based devices is the protection of the electronic components from the ambient body environment. There is …
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Titanium nitride as an electrode material for high charge density applications
Present day neural prostheses require electrodes with high current densities. Traditional electrodes are not capable of delivering such high current densities. Titanium nitride as an electrode material and other techniques like reactive ion etching, platinization of titanium were studied in this …
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Development of sensory feedback systems: devices and strategies
… up new possibilities for developing innovative neural prostheses for limb replacement. To ensure the success of such prostheses, it is crucial to establish a stable and reliable connection between the artificial limb, residual muscles, and the nervous system. Communication with the nervous …
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Neuromorphic cross correlation of digital spreading codes
The study of neural networks is inspired by the mystery of how the brain works. In a quest to solve this mystery, scientists and engineers hope that they will learn how to build more powerful computational systems that are capable of processing information much more efficiently than today’s digital …
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Development Of Carbon Based Neural Interface For Neural Stimulation/recording And Neurotransmitter Detection
<p>Electrical stimulation and recording of neural cells have been widely used in basic neuroscience studies, neural prostheses, and clinical therapies. Stable neural interfaces that effectively communicate with the nervous system via electrodes are of great significance. Recently, flexible neural …
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Integrated Signal Demodulation, Data Conversion, and Packaging Strategies for a Wireless, Fully Implantable, Bidirectional Neural Interface
… most relevant is the development of upper-limb prostheses to replace missing limbs following amputation. Neural prosthetics represents a promising research direction, with the potential to substantially improve the quality of life of amputees. Unlike commercial prostheses, which are typically …
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Using electrical stimulation responses to understand cochlear implant status
Cochlear implants (CIs) are neural prostheses that improve access to sounds for patients with severe to profound sensorineural hearing loss. CIs stimulate the auditory nerve with current pulses on a multi-electrode array that is placed inside the cochlea. Success of CIs varies based on a wide range …