Medical infusion apparatus includes a container for a liquid to be infused, tubing leading from the container to the subject to receive an infusion, a pump for pumping the infusion liquid via the tubing to the subject, and a safety valve connected in the tubing between the pump and the subject. The...http://www.google.de/patents/US5853397?utm_source=gb-gplus-sharePatent US5853397 - Medical infusion apparatus including safety valve
