'Donkey ambulance' helping Afghanistan's pregnant women
18 September 2013 Last updated at 16:03 BST
Inventive ideas for delivering healthcare cheaply to poor parts of developing countries have been unveiled at a conference at the Institution of Mechanical Engineers.
Among the designs is the Donkey Ambulance - a secure, padded saddle, which is already helping pregnant women in remote areas of Afghanistan to travel to hospital to give birth.
Creator Peter Muckle explained how it works to Tulip Mazumdar.