Student awarded for device that rapidly stops blood loss from stab wounds 

The React device aims to help police treat knife wounds while waiting for medical assistance to arrive

22-year-old from Essex comes up with concept after two friends were victims of non-fatal knife related incidents (Dyson/PA)

A 22-year-old has won this year’s UK James Dyson Award for designing a potentially life-saving device to help stem bleeding from knife wounds.

Stab victims can bleed to death in just five minutes, so the priority for emergency personnel is to stop excessive blood loss.