Medical devices range from things as simple as an injection needle to implantable pacemakers and MRI imaging devices. A video by the WHO (http://t1p.de/WHOVideo) gives you an impression of the variety of medical devices and their importance for health; it reminds you as well of the unequal access to life-saving medical equipment. The WHO publishes a compendium of devices (http://t1p.de/WHO-compendium) that could be afforded in low-resource settings to offer solutions to health care issues, especially in developing countries. Such devices include an electrochlorinator designed to provide safe drinking water, but also mobile ECG devices. A film produced by Trinity College Dublin illustrates the role of medical devices in health care and the research efforts made to develop next-generation medical devices: http://t1p.de/ TrinitiyVideo.