Abstract: An arrangement for pressurizing an inflatable sleeve (2) that can be applied, for instance, to the arm of a patient for measuring the patient's blood pressure, or that can be applied to an infusion bag for forced infusion of said infusion to a patient, wherein the device further includes a sleeve-connected pressure gauge (3), a hand pump (30) which is connected to the sleeve (2) via line (54,2) and which includes an air inlet (31) that has a check valve (32), wherein the device also comprises a manually actuable air release valve (55) for controlled release of gas from the sleeve interior, wherein a box (5) is connected in the line (52,4) between the sleeve (2) and the air release valve (53); wherein the box (5) is connectable to a pressurized gas source (20) by means of a hose (8), wherein the hose (8) connects with the interior of the box (5) via a check valve (7) and a manually controllable valve (6) for the input of gas from the pressure gas source to the sleeve (2) via the box (5).