The vacuum regulator is used to measure and adjust the vacuum level within the context of medical suction. It enables to drain substances out of the patient's body during surgical procedures. Thanks to its position « intermittent » the RVi TM makes it possible to do a suction by intermittence. The vacuum regulator should be connected to a vacuum source on the wall either using a direct probe or a rail mounting system. It should be associated with a collection jar and a suction hose.