There are thousands of medical devices on the market, from sticking plasters and wheelchairs to artificial hips and pacemakers. Worldwide, the industry is worth over £200 billion a year. But how well regulated are these devices?
In a joint investigation with the medical journal, BMJ, Dispatches looks at three types of devices put in the hip, heart and head. Weighing up the benefits and risks, Deborah Davies asks if the current system needs to be changed to give better protection to patients and doctors.