Abstract: A device for connecting an implantable heart prosthesis to the vascular system of a patient. The connecting device, intended for connecting a heart prosthesis, implantable in the pericardial cavity of a patient, to the vascular system of the patient, has an interface component equipped with a mitral interface element, a tricuspid interface element, an aortic interface element and a pulmonary interface element, which are intended for connection to the left atrium, the right atrium, the aorta and the pulmonary artery of the patient, each of the interface elements being provided with an orifice, and at least some of the interface elements having different orientations appropriate for taking up the orientations of the heart prosthesis and for respecting the anatomy of the patient, this connecting device making it possible in particular to fit the heart prosthesis in place more easily and more quickly.

Abstract: The invention relates to a flexible barrier membrane (1) comprising at least one first layer (2a) of polyurethane, and at least one second layer (20) of material(s), which is incorporated into the first layer (2a) of polyurethane by a modification of at least one surface of the at least one layer of polyurethane. The at least one material of the at least one second layer is selected from the materials including inorganic silicon oxide, organic silicon oxide and a barrier polymer. The invention also relates to a method for producing the flexible barrier membrane (1).