An apparatus for sucking blood out of body cavities blood collecting vessel is at one end connected via a flexible line to a source of vacuum, and, at the other provided integrally with a suction tube. The lower portion of the suction tube includes suction orifices and projects into a basket acting as...http://www.google.fr/patents/US4321921?utm_source=gb-gplus-shareBrevet US4321921 - Apparatus for sucking blood out of body cavities
