Patent ID: 7068803

Claim:
An acoustic device for being arranged in a human ear and comprising a housing configured for being located in the outer ear, and forming a closed-ear configuration in the cavum conchae, with a face adapted for abutment on the tragus, a face adapted for abutment on the antitragus, a mouthpiece adapted for being inserted into the mouthing of the auditory tract and a resilient means adapted for abutment on the cartilage arch between the antihelix and the concha and configured for influencing the housing with a force oriented generally forwards towards the tragus, wherein the resilient means comprises an elongated element that distributes the force along the cartilage arch at the concha, and that is mounted approximately tangentially relative to that face of the housing that is configured for contact with the antitragus; wherein the elongated element is a spring that has a spring rigidity that decreases with the distance from the housing, whereby a uniform distribution of the force towards the cartilage arch is provided at the concha.