Patent ID: 8551168

Claim:
Valve device intended for being implanted in a dysfunctional larynx or in an artificial prosthetic larynx, said valve device comprising a distal portion forming an annular support structure and a central portion forming an obturator intended for allowing air flow and for preventing passage of any other element, wherein said obturator comprises: i) a peripheral part forming a first valve integral with the annular support structure at a level of a first hinge region, said first valve being able to go down under an effect of a depression resulting from an inspiration by a patient; and ii) a central part forming a second valve integral with the first valve at a level of a second hinge region, said second valve being able to rise under an effect of an overpressure exerted by air expired by the patient and said second valve also being able to cooperate with the first valve to depress further to the inspiration by the patient, said first and second valve cooperating with each other in a totally hermetic manner; wherein the first and second valves comprise a cooperating means in order to allow rising only of the second valve and simultaneous lowering of the first and second valves.