Rather than building a device from the ground up, Synchron and Paradromics have taken inspiration from previous medical devices. Paradromics’ design, for instance, is based on the Utah array but makes some key improvements. It’s wireless, for one, and it has 421 electrodes on the end of tiny wires that sit in the brain tissue. Those wires are all much smaller than the shanks of the Utah array, Angle says.
Synchron’s device, meanwhile, is a hollow mesh tube that resembles a heart stent. Instead of going into the brain directly, it’s inserted into the jugular vein at the base of the neck and pushed up against the cortex. Synchron has implanted 10 participants with its device so far, with one surpassing three years with it. (Arbaugh’s implant is still working after 100 days). Banerjee says the company has not seen a decline in signal quality or performance yet.
Andrew Schwartz,…
