Patent ID: 6471662
Filing Date: 2002-10-29
Classification: A61B

Abstract:
An acoustic therapy apparatus, comprising:a housing; an electro-acoustic transducer having a sound irradiation surface and elements, the transducer being operatively arranged in a housing, whereby the housing forms a shell having edge regions and has a carrier for the transducer elements; at least one coupling element having a first coupling surface and a second coupling surface, the coupling element being cast in the shell of the housing and filling the shell such that the second coupling surface is flush with the edge regions of the shell and the first coupling surface is fixedly arranged on the sound irradiation surface of the transducer, wherein sound waves from the sound irradiation surface are directly coupled into the coupling element; and an elastic coupling cushion having an interior coupling surface and an exterior coupling surface, the coupling cushion being releasably connected to the second coupling surface of the coupling element, the first and second coupling surfaces of the coupling element defining a first sound advance path therebetween, while the the interior and exterior coupling surfaces of the coupling cushion define a second sound advance path therebetween, whereby both a length of the second sound advance path and a penetration depth of the sound waves are variable in dependence upon the thickness of the coupling cushion.