Neural correlates of phosphene perception in blind individuals: A step toward a bidirectional cortical visual prosthesis (opens in a new tab)
Science Advances, 11(45): eadv8846. doi:10.1126/sciadv.adv8846
Applications
Research in the Hospital
BCI & Prosthetic Development
Ripple technology is a staple in my lab. It’s great to have a single piece of equipment that can do it all: stimulation, recording, invasive, noninvasive. I’m not aware of any other device that can stream 512 channels at 30 kHz wirelessly in a portable form factor, while also being able to stimulate simultaneously. Ripple technology is leading the field, and they’ve been a great collaborator helping us develop custom solutions to push boundaries even further.
Jacob George University of Utah · Rehabilitation Robotics Brain-Computer Interface Research
Decode neural activity and stimulate in the same experiment, in the lab and on the move.
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Record and stimulate together
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Closed loop from Python or MATLAB
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Goes where the participant goes
Vision restoration with intracortical stimulation
Fernandez lab, Universidad Miguel Hernández
Microstimulation through a Utah array implanted in the visual cortex evokes phosphenes in blind volunteers, a step toward a bidirectional cortical visual prosthesis. The Summit handles both recording and stimulation.
Hardware configuration
- Explorer Summit Recording, stimulation and real-time processing
- Utah array pedestal interfaces Micro2+stim front ends, 128 channels per pedestal
- Analog + Digital I/O TTL pulses and continuous signals from external devices
- PhysioD with touchproof adapter Differential EMG recording
Ripple products are an indispensable tool in our neurophysiology research. We are very satisfied with the platform’s ability to obtain high-quality neural recordings from up to 512 simultaneous channels, as well as its robust functionality for delivering a wide range of customized stimulation patterns. Moreover, the seamless integration and speed of the system make true closed-loop stimulation possible, enabling real-time, adaptive experiments.
Eduardo Fernandez Universidad Miguel Hernández · Visual Prosthetics Ripple hardware for BCI Research
Prosthetic Research
Restore movement and sensation for people with limb loss or paralysis.
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Record and stimulate on up to 512 channels
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Flexible stimulation
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Goes where the participant goes
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Synchronizes with external devices
Sensory feedback for a lower-limb prosthesis
Fisher lab, University of Pittsburgh
Closed-loop spinal cord stimulation, driven by a pressure-sensing insole, restores sensation from the missing foot in people with lower-limb amputation.
Restoration of sensory feedback from the foot and reduction of phantom limb pain via closed-loop spinal cord stimulation (opens in a new tab)
Nature Biomedical Engineering, 8(8): 992–1003. doi:10.1038/s41551-023-01153-8
Hardware configuration
- Explorer Summit Runs the closed-loop stimulation
- Analog + Digital I/O Brings external sensor signals into the experiment
- Macro2+stim Stimulation through the spinal cord stimulation leads
More publications
Simultaneous and Proportional Myoelectric Control of Multiple Degrees of Freedom in Individuals With Chronic Hemiparesis (opens in a new tab)
IEEE Transactions on Neural Systems and Rehabilitation Engineering, 33: 3246. doi:10.1109/TNSRE.2025.3599062
Enhancing neuroprosthesis calibration: the advantage of integrating prior training over exclusive use of new data (opens in a new tab)
Journal of Neural Engineering, 21(6): 066020. doi:10.1088/1741-2552/ad94a7
Ripple hardware for Prosthetic Research
Planning a study?
Our team can help you configure the right Explorer Summit system for your research.