You've heard of alpha males? Greg Lambrecht is an alpha double plus male. Clean cut, almost male-model looks, 44 but looks barely half that, he starts and runs medical companies which develop clever inventions. Spinal implants are his current speciality and when I met him in London last month he was on his way to South Africa to convince a major insurance company there that the considerable cost of his latest spinal implant was worthy of reimbursement.