. >> reporter: meet alex lewis. interior designer, businessman, adventur and motivational speaker. >> we were just an ordinary family. me, lucy, and our son sam. then just over two years ago, ig ht a common cold. it was to change the course ofe my lernight. i'm in this condition because o an incredire case of strep c and it led to toock syndrome, septicaemia and subsequently sepsis. i lost all four limbs within six or seven months. reporter: alex is a pathfinder for those with serious medical conditions. in the remains of each arm, a micro chip has been implanted. one is to hold medical information. the other for a chore the able bodied take for grand. >> for me as a prosthetic user, one of the fiddliest things is keys. keys are a nightmare for us. and the microchip, when looking in to it, we realized quite quickly it could save a lot of time. so for me it was going to be beneficial for that, i could lose 15 minutes trying to get in my front door. i could lose ten mutes trying b get out of my back door. and now all