It had an external unit that recived data wirelessly, but it is not clear if it processed that locally, or transmitted it to a remote facility. Even if it did l

It had an external unit that recived data wirelessly, but it is not clear if it processed that locally, or transmitted it to a remote facility. Even if it did local processing, it may have needed to periodically check in to keep functioning, or to upload data to a company server. If not fully coerced (on an argument that that is the company's property), it was still most likely it was semi-corcerced, in that the company was bankrupt, and while they would have had funds put aside for removal of implants at end of trial, and contracts with a neruosurgeon, once they officially liquidated that would vanish. If it needed to be removed later (like once the battery ran out) well it would need to go through the public health system, which could lead to delays. If they did not have her go to the very same surgeon, for any reason, then the one who did see her would probably need to decide how to approach removal based on what they can see in imaging (since they won't have official instructions from the company), etc. Nothing about this is ideal. Which is the medical ethicists' point. Lifechanging implants like these need to be supported for the life of the patient, especially if they cannot be easily replace with some newer improved version. And while this was only a medical trial, a production vision implant was abandoned by its creator ( https://spectrum.ieee.org/bionic-eye-obsolete https://spectrum.ieee.org/bionic-eye-obsolete ), and while the implants do continue to work, if anything goes wrong, they won't get fixed. Like even if the problem was in an external parts that a normal electronics hacker could fix, nobody outside the company knows how they work, what could break, and obviously they are not releasing source code or schematics or anything. So you would need to try to find somebody to reverse engineering a cutting edge medical device, to try to fix it. (This company was merged into another as an alternative to bankruptcy, so perhaps not all hope is lost. The merged company is mainly focused on its drug delivery system, but with respect to the implants the merged company's CEO intends to do what is "right from an ethical perspective.", which for the retinal implants presumably means providing basic technical and medical support, while no longer manufacturing the retinal implants or accessories. They had a brain implant version in trials pre-merger, and it is unclear if the company will move forward with them when the clinical trial ends.)