A method of using a pump set on a pump to deliver a supply of liquid to a patient. The pumping apparatus has a control system for controlling operation of the pump. An electromagnetic radiation source is controlled by the control system to emit an electromagnetic radiation signal in a direction for striking...http://www.google.com.au/patents/US20070208307?utm_source=gb-gplus-sharePatent US20070208307 - Method for using a pump set having secure loading features
