Patent ID: 9014808
Filing Date: 2015-04-21
Classification: A61N,H01G,H03H

Abstract:
1. An EMI broadband lowpass filtered hermetically sealed feedthrough assembly for an active implantable medical device, the feedthrough assembly including at least one capacitor configured for handling high power by a low equivalent series resistance (ESR), the feedthrough assembly comprising: a) a conductive ferrule; b) an insulator hermetically sealed to the conductive ferrule; c) a conductor hermetically sealed and disposed through the insulator between a body fluid side and a device side and in a non-conductive relation with the conductive ferrule; d) a broadband lowpass capacitor disposed on the device side and configured to be installed inside an electromagnetically shielded and hermetic conductive housing of an active implantable medical device, the capacitor comprising a first and second end metallization, wherein the first end metallization is connected to at least ten active electrode plates and wherein the second end metallization is connected to at least ten ground electrode plates, wherein the at least ten active electrode plates are interleaved and disposed parallel to the at least ten ground electrode plates in a capacitor dielectric, wherein the capacitor dielectric has a dielectric constant of less than 200; e) an active electrical connection electrically coupling the first end metallization to the conductor; and f) a ground electrical connection electrically coupling the second end metallization to the conductive ferrule; g) wherein the capacitor comprises: h) wherein the conductive ferrule is configured to be disposed into an opening of the housing for an active implantable medical device.