A portable lavage device comprising a moveable tank for holding a cleansing liquid, a pump coupled to the tank for circulating the cleansing liquid under a pressure which varies from a maximum to a minimum and spaced nozzles coupled to the circulating pump and arranged to spray the cleansing liquid under...http://www.google.fr/patents/US4402331?utm_source=gb-gplus-shareBrevet US4402331 - Portable lavage device
