The invention concerns a surgical apparatus for irrigating an operative site during endoscopic surgery. The apparatus comprises a reservoir of irrigation fluid contained within an air actuated pouch, a pump for inflating the pouch so that the reservoir is compressed, pressure control means, a microprocessor...http://www.google.de/patents/US5368569?utm_source=gb-gplus-sharePatent US5368569 - Irrigation system for preventing contamination and reducing the risk of patient hypothermia
