A surgical instrument has a gas-delivery device to supply a noble gas or other inert gas to a tissue-treatment region and a rinsing device for rinsing a target region, in particular a tissue-treatment region. In the instrument the rinsing pressure is generated by the inert gas supplied by the gas-delivery...http://www.google.ca/patents/US20060122586?utm_source=gb-gplus-sharePatent US20060122586 - Surgical instrument
