Donated by Royal College of Physicians president-elect Andrew ‘Bod’ Goddard. Stents like these are used in the treatment of cancer, helping to ensure that tumours don’t block the food pipe. Originally invented in the 1880s, this type of plastic model was introduced in the 1970s. However, the plastic stents were difficult to place – something which Dr Goddard dreaded as a trainee doctor. More recently, much more flexible expanding metal stents have been introduced, making these uncomfortable versions a thing of the past. As Bod says, ‘As they are for my patients, oesophageal stents are close to the heart’.