Two years ago, Brian Muscreave slipped on some black ice and broke his back, and after many therapy sessions and surgeries, he’s still in a lot of pain. He can’t work or even play with his grandson. Now he’s putting his faith in an Evoke device. When the device is implanted in his back, it will use electricity to interrupt the brain’s pain signals. It even automatically adjusts itself based off movement or pain levels. Muscreave, the first person in his area to get an Evoke device, has had great success with a portable version.