Video, 00:01:34 Gum shield helps spot concussion signs. Subsection. Technology. Published. 16 March 2019. 1:34. Up Next. Robot teaches itself to ice-skate. Video, 00:01:37 Robot teaches itself to ...

Gum shield helps spot signs of concussion. Players of contact sports such as rugby can be at risk of a brain injury (concussion) and in some cases this can be fatal.