The implant was a revelation. After the pattern and strength of the stimulation had been tailored to Möllmann-Bohle’s needs, around an hour’s use five or six times a day was enough to prevent attacks from becoming debilitating. “I was reborn,” he says.But, by the end of 2019, ATI had collapsed. The company’s closure left Möllmann-Bohle and more than 700 other people alone with a complex implanted medical device. People using the stimulator and their physicians could no longer access the proprietary software needed to recalibrate the device and maintain its effectiveness. Möllmann-Bohle and his fellow users now faced the prospect of the battery in the hand-held remote wearing out, robbing them of the relief that they had found. “I was left standing in the rain,” Möllmann-Bohle says.