Our son, Alasdair, has severe allergies and must carry an EpiPen everywhere. One day, in the rush to leave, we forgot it. That moment, realising that if something had happened, we didn’t have what he needed, will stay with me forever.

To fix that, I built something simple. A small device on our door that played a recorded message whenever it opened. A message from his big sister saying, “Remember Ally’s EpiPen.” It worked instantly. We never forgot it again.

Then something unexpected happened. Visitors, from the postman to friends, began asking if I could build one for them too. One wanted it to remind their parent to take their GTN heart spray. Another wanted one for a child’s inhaler. Others for daily insulin medication.

That’s when we realised we weren’t the only ones. This wasn’t just our problem. Forgetting life-saving medication isn’t rare. It affects millions of people around the world.

MediSentry could change that. A simple reminder for something that can save your life.