Filtered feedthrough assembly for implantable medical electronic devices

Abstract

A filtered feedthrough assembly for an implantable medical device comprises a ferrule, an electrical insulator coupled to the ferrule by a connection element, a plurality of feedthrough conductors extending through the electrical insulator, a printed circuit board (PCB), and plurality of capacitors. The PCB is coupled to the ferrule or the electrical insulator, and includes one or more ground layers and a plurality of vias. The connection element is electrically coupled to the ground layer through the vias. The capacitor has a ground terminal electrically coupled to the ground layer through at least one of the vias, and a conductor terminal electrically coupled to the feedthrough conductor.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to Provisional Application No. 61 / 943,130, filed February 21, 2014, which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates to hermetic feedthroughs and electromagnetic interference filters integrated into one or more feedthrough assemblies. In particular, the present disclosure relates to hermetic feedthroughs comprising printed circuit boards (PCBs) having multiple ground planes and multiple ground pins. Background technique [0004] Medical devices may be surgically implanted in a patient and may include devices such as pacemakers, defibrillators, neurostimulators, and heart monitors. These implantable medical devices typically include a hermetically sealed metal housing that contains circuitry for generating electrical signals that are delivered to the patient's heart through one or more conductors from the container via a ...

AI Technical Summary

Problems solved by technology

Electromagnetic filters typically include complex multilayer laminate capacitors configured to filter external signals of hundreds of volts and are therefore often very expensive, which can increase the cost of implantable medical devices as a whole

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