This engineer fixed his own heart with a mesh sleeve

When Tal Golesworthy was told he was at risk of his aorta bursting, he wasn’t impressed with the surgery on offer – so he came up with his own idea. Lunchtime at a small medical engineering company in Tewkesbury. The entertainment thoughtfully laid on to garnish our sandwiches is a colourful video: a neat bit of cardiovascular surgery featuring someone’s heart and blood vessels. Someone? Well, not quite anyone. The exposed and beating heart at which we’re gazing belongs