A surgical device comprising a container and a tether used for delivering a sterile appliance into a body cavity during endoscopic procedures. Once positioned in the body cavity, a force is applied to the container through the tether. The force opens the container and releases the sterile appliance into...http://www.google.co.uk/patents/US20100331774?utm_source=gb-gplus-sharePatent US20100331774 - STERILE APPLIANCE DELIVERY DEVICE FOR ENDOSCOPIC PROCEDURES