A filtering assembly and a feedthrough assembly

摘要

The present invention is directed to a filtering assembly for a feedthrough, preferably for implantable medical devices, wherein said feedthrough comprises at least one operating conductive pin and a ground conductive pin. The inventive filtering assembly comprises the following elements:
- a first insulating substrate;
- a first conductive layer accommodated at a first side of said first insulating substrate and a second conductive layer accommodated at a second side of said first insulating substrate opposing said first side;
- said first conductive layer comprises a conductive ground ring accommodated in the way that it surrounds the circumference of one end of said operating conductive pins and at least one capacitive element, wherein each of said at least one capacitive elements provides on the first side a connection to one or more of said operating conductive pins and on the second side a connection to said ground ring, wherein said ground ring is connected to said ground pin;
- said second conductive layer comprises a ground plane providing a connection to said ground ring of said first conductive layer and a connection to said ground pin. The invention is further directed to a feedthrough assembly comprising the inventive filtering assembly.