Feedthrough filter capacitor assembly with internally grounded hermetic insulator

A feedthrough filter capacitor assembly, comprising:

• a conductive terminal pin;
• a feedthrough filter capacitor having first and second sets of electrode plates, a first passageway through which the terminal pin extends in conductive relation with the first set of electrode plates;
• a conductive ferrule through which the terminal pin extends in non-conductive relation;
• an insulator having a first passageway through which the terminal pin extends in non-conductive relation, and a ground plate conductively coupled to the ferrule;
• and
• a conductive material at least partially extending through a second passageway of the capacitor in conductive relation with the second set of electrode plates and at least partially extending through a second passageway of the insulator in conductive relation with the ground plate, for conductively coupling the capacitor second set of electrode plates and the ground plate.

A feedthrough filter capacitor assembly, comprising:

• a conductive terminal pin;
• a feedthrough filter capacitor having first and second sets of electrode plates, and a first passageway through which the terminal pin extends in conductive relation with the first set of electrode plates;
• a conductive ferrule conductively coupled to a housing for an active implantable medical device and through which the terminal pin extends in non-conductive relation;
• an insulator having a first passageway through which the terminal pin extends in non-conductive relation, and a ground plate extending to a conductive outer peripheral surface of the insulator that is conductively coupled to the ferrule;
• and
• a conductive material at least partially extending through a second passageway of the capacitor in conductive relation with the second set of electrode plates, and at least partially extending through a second passageway of the insulator in conductive relation with the ground plate for conductively coupling the second set of electrode plates and the ferrule.