A METHOD AND MACHINE FOR TAKING BIOLOGICAL FLUID TO WHICH A SOLUTION IS ADDED IN ACCORDANCE WITH A DESIRED RATIO

摘要

The invention concerns a method of taking a biological fluid, in particular blood, with an anticoagulant and/or preservation solution added, in which the biological fluid is taken by natural flow and the anticoagulant and/or preservation solution is added by pumping, the said method making provision for measuring the flow of fluid taken and slaving the pumping speed to the measured flow, so as to obtain continuously during sampling a given ratio between the quantity of fluid tak en and the quantity of anticoagulant and/or preservation solution added. The invention also concerns the sampling machine (1) and the bag system (2) for implementing the said method.