A device for providing circulatory assistance, the device comprising: a balloon comprising a membrane defining a cavity having an internal volume (Vc), wherein the balloon comprises a proximal portion comprising a proximal end and a distal portion comprising a distal end, and a longitudinal axis extending between the proximal and distal ends; wherein the device further comprises: a first catheter or guide wire, affixed to the distal end of the balloon at a first fixation point; a second catheter, affixed to the proximal end of the balloon at a second fixation point, the second catheter being arranged in a parallel or coaxially with respect to the first catheter or guide wire, wherein the second catheter is configured for axial movement with respect to the first catheter or guide wire between: a first position in which the first and second fixation points (P1, P2) are spaced apart from each other in the longitudinal direction by a first distance, preferably in which the proximal portion of the balloon is not inverted with respect to the distal portion of the balloon; a second position in which the first and second fixation points (P1, P2) are spaced apart from each other in the longitudinal direction by second distance, and in which the proximal portion of the balloon is inverted with respect to the distal portion of the balloon to form a receptacle having an internal volume (Vr); and wherein the distal portion of the balloon is more rigid than the proximal portion of the balloon. a balloon comprising a membrane defining a cavity having an internal volume (Vc), wherein the balloon comprises a proximal portion comprising a proximal end and a distal portion comprising a distal end, and a longitudinal axis extending between the proximal and distal ends; wherein the device further comprises: a first catheter or guide wire, affixed to the distal end of the balloon at a first fixation point; a second catheter, affixed to the proximal end of the balloon at a second fixation point, the second catheter being arranged in a parallel or coaxially with respect to the first catheter or guide wire, wherein the second catheter is configured for axial movement with respect to the first catheter or guide wire between: a first position in which the first and second fixation points (P1, P2) are spaced apart from each other in the longitudinal direction by a first distance, preferably in which the proximal portion of the balloon is not inverted with respect to the distal portion of the balloon; a second position in which the first and second fixation points (P1, P2) are spaced apart from each other in the longitudinal direction by second distance, and in which the proximal portion of the balloon is inverted with respect to the distal portion of the balloon to form a receptacle having an internal volume (Vr); and wherein the distal portion of the balloon is more rigid than the proximal portion of the balloon. a first catheter or guide wire, affixed to the distal end of the balloon at a first fixation point; a second catheter, affixed to the proximal end of the balloon at a second fixation point, the second catheter being arranged in a parallel or coaxially with respect to the first catheter or guide wire, wherein the second catheter is configured for axial movement with respect to the first catheter or guide wire between: a first position in which the first and second fixation points (P1, P2) are spaced apart from each other in the longitudinal direction by a first distance, preferably in which the proximal portion of the balloon is not inverted with respect to the distal portion of the balloon; a second position in which the first and second fixation points (P1, P2) are spaced apart from each other in the longitudinal direction by second distance, and in which the proximal portion of the balloon is inverted with respect to the distal portion of the balloon to form a receptacle having an internal volume (Vr); and wherein the distal portion of the balloon is more rigid than the proximal portion of the balloon. a first position in which the first and second fixation points (P1, P2) are spaced apart from each other in the longitudinal direction by a first distance, preferably in which the proximal portion of the balloon is not inverted with respect to the distal portion of the balloon; a second position in which the first and second fixation points (P1, P2) are spaced apart from each other in the longitudinal direction by second distance, and in which the proximal portion of the balloon is inverted with respect to the distal portion of the balloon to form a receptacle having an internal volume (Vr); and wherein the distal portion of the balloon is more rigid than the proximal portion of the balloon.