A pressure cuff or garment for prophylactic treatment of deep vein thrombosis includes a series of three chambers arranged in series and coupled fluidically to one another by bleed tubes or chokes. The chambers are otherwise sealed to the environment, save for the first chamber which also provides an inlet/outlet for coupling to a fluid pump. The chambers are also of curved shape so as to overlap one another. The cuff or garment provides more effective pulsating pressure treatment than prior art structures.
