What happens when medical device companies ‘abandon’ patients with experimental brain implants?

Professor Frédéric Gilbert says a growing number of patients will be abandoned when clinical trials go bust.
Professor Frédéric Gilbert.

Back in 2010, Rita Leggett received a brain implant that changed her life.  

She had lived with severe chronic epilepsy for decades, but she received a neural device — known as a brain–computer interface (BCI) — as part of a clinical trial.