Abstract: A device is provided in which an implantable medical product is subjected to loads. The device includes a continuous channel with a wall, in which a liquid is to flow in a flow direction; a first liquid chamber is provided with an adjustable volume, a product chamber is provided for accommodating the medical product that is to be put under load, a second liquid chamber is provided with an adjustable volume, and a valve device is provided with a valve member which, in a first state, closes the channel and, in a second state, allows channel flow. The device includes a flow mechanism configured to cause liquid to flow through the channel in the flow direction by changing the volume of the first liquid chamber as well as an operational mechanism configured to achieving a continuously variable adjustment of the valve member between the first state and the second state.

Abstract: The present invention provides an assembly of bellows part and a part against which unrolling takes place (the unrolling part), comprising a bellows part with a flexible wall of a predetermined shape and thickness variation which co-operates with an unrolling part with a stiff outer wall along which the flexible wall is movable, wherein the unrolling part has a predetermined diameter variation and/or the flexible wall has a predetermined thickness variation so as to cause a desired development of force.

Abstract: The present invention provides an assembly of bellows part and a part against which unrolling takes place (the unrolling part), comprising a bellows part with a flexible wall of a predetermined shape and thickness variation which co-operates with an unrolling part with a stiff outer wall along which the flexible wall is movable, wherein the unrolling part has a predetermined diameter variation and/or the flexible wall has a predetermined thickness variation so as to cause a desired development of force.