The invention concerns compensatory container (1) to influence blood pressure, comprising volume chamber (2) with connectors (3) for connecting volume chamber (2) to a natural cardiovascular system, and in which a change in pressure in the cardiovascular system may effect a change in volume of volume chamber (2), as well as means of adjustment which limit the change in volume of volume chamber (2) in a lower pressure region below a pressure threshold of at least 100 mmHg to a maximum of 10 cm3, and which, in an upper pressure region between the pressure threshold and 150 mmHg, effect a change in volume of volume chamber (2) of not less than 10 cm3, whereby the means of adjustment comprise frame (4) and at least one flexible body (5) working in conjunction with such frame. Frame (4) and flexible body (5) are located outside volume chamber (2), with frame (4) having two front parts (6) and at least three support rods (7) connecting two front parts (6), between which is situated the at least one flexible body (5).