Inductor capacitor EMI filter for human implant applications

A feedthrough terminal assembly for an active implantable medical device, comprising:

• a conductive ferrule conductively coupled to a housing of the active implantable medical device;
• a feedthrough capacitor having first and second sets of electrode plates, the second set of electrode plates being conductively coupled to the ferrule;
• an inductor closely associated with the capacitor in non-conductive relation;
• and
• a conductive terminal pin extending through the capacitor and the inductor, the terminal pin extending through the inductor in non-conductive relation and conductively coupled to the first set of electrode plates;
• wherein the inductor comprises a high permeability ferrite material.

A feedthrough terminal assembly for an active implantable medical device, comprising:

• a conductive ferrule conductively coupled to a housing of the active implantable medical device;
• a feedthrough capacitor having first and second sets of electrode plates, the second set of electrode plates being conductively coupled to the ferrule;
• an inductor closely associated with the capacitor in non-conductive relation;
• a conductive terminal pin extending through the capacitor and the inductor, the terminal pin extending through the inductor in non-conductive relation and conductively coupled to the first set of electrode plates;
• and
• a conformal coating over the inductor.

A feedthrough terminal assembly for an active implantable medical device, comprising:

• a conductive ferrule conductively coupled to a housing of the active implantable medical device;
• a feedthrough capacitor having first and second sets of electrode plates, the second set of electrode plates being conductively coupled to the ferrule;
• an inductor closely associated with the capacitor in non-conductive relation;
• a conductive terminal pin extending through the capacitor and the inductor, the terminal pin extending through the inductor in non-conductive relation and conductively coupled to the first set of electrode plates;
• and
• an insulator disposed between the inductor and the terminal pin.

A feedthrough terminal assembly for an active implantable medical device, comprising:

• a conductive ferrule conductively coupled to a housing of the active implantable medical device;
• a feedthrough capacitor having first and second sets of electrode plates, the second set of electrode plates being conductively coupled to the ferrule;
• an inductor closely associated with the capacitor in non-conductive relation;
• a conductive terminal pin extending through the capacitor and the inductor, the terminal pin extending through the inductor in non-conductive relation and conductively coupled to the first set of electrode plates;
• and
• a second inductor through which the terminal pin extends in non-conductive relation.

A feedthrough terminal assembly for an active implantable medical device, comprising:

• a conductive ferrule conductively coupled to a housing of the active implantable medical device;
• a feedthrough capacitor having first and second sets of electrode plates, the second set of electrode plates being conductively coupled to the ferrule;
• an inductor closely associated with the capacitor in non-conductive relation;
• and
• a conductive terminal pin extending through the capacitor and the inductor, the terminal pin extending through the inductor in non-conductive relation and conductively coupled to the first set of electrode plates;
• wherein the capacitor's second set of electrode plates are externally grounded to the ferrule.

A feedthrough terminal assembly for an active implantable medical device, comprising:

• a conductive ferrule conductively coupled to a housing of the active implantable medical device;
• a feedthrough capacitor having first and second sets of electrode plates, the second set of electrode plates being conductively coupled to the ferrule;
• an inductor closely associated with the capacitor in non-conductive relation;
• and
• a conductive terminal pin extending through the capacitor and the inductor, the terminal pin extending through the inductor in non-conductive relation and conductively coupled to the first set of electrode plates;
• wherein the capacitor's second set of electrode plates are internally grounded to the ferrule.

A feedthrough terminal assembly for an active implantable medical device, comprising:

• a conductive ferrule conductively coupled to a housing of the active implantable medical device;
• a feedthrough capacitor having first and second sets of electrode plates, the second set of electrode plates being conductively coupled to the ferrule;
• a first inductor bonded to the capacitor in non-conductive relation;
• a second inductor bonded to the capacitor in non-conductive relation, the second inductor being disposed opposite the first conductor relative to the capacitor;
• and
• a conductive terminal pin extending through the capacitor and the inductors, the terminal pin extending through the inductors in non-conductive relation and conductively coupled to the first set of electrode plates.

A feedthrough terminal assembly for an active implantable medical device, comprising:

• a conductive ferrule conductively coupled to a housing of the active implantable medical device;
• a first feedthrough capacitor having first and second sets of electrode plates, the second set of electrode plates being conductively coupled to the ferrule;
• a second feedthough capacitor having first and second sets of electrode plates, the second set of electrode plates being conductively coupled to the ferrule;
• an inductor disposed between and bonded to the capacitors in non-conductive relation;
• and
• a conductive terminal pin extending throught the capacitors and the inductor, the terminal pin extending through the inductor in non-conductive relation and conductively coupled to the first sets of electrode plates of both capacitors.

A feedthrough terminal assembly for an active implantable medical device, comprising;

• a conductive ferrule conductively coupled to a housing of the active implantable medical device;
• an externally grounded feedthrough capacitor having first and second sets of electrode plates, the second set of electrode plates being conductively coupled to the ferrule;
• an internally grounded feedthrough capacitor having first and second sets of electrode plates, the second set of electrode plates of the internally grounded capacitor being conductively coupled to the second set of electrode plates of the first capacitor;
• an inductor disposed between and closely associated with the capacitors in non-conductive relation;
• and
• a conductive terminal pin extending through the capacitors and the inductor, the terminal pin extending through the inductor in non-conductive relation and conductively coupled to the first sets of electrode plates of both capacitors.

A feedthrough terminal assembly for an active implantable medical device, comprising:

• a conductive ferrule conductively coupled to a housing of the active implantable medical device;
• a feedthrough capacitor having first and second sets of electrode plates, the second set of electrode plates being conductively coupled to the ferrule, wherein the capacitor's second set of electrodes are externally grounded to the ferrule;
• an inductor associated with the capacitor in non-conductive relation;
• means for maintaining the inductor in close association with the capacitor without forming a direct physical attachment therebetween;
• and
• a conductive terminal pin extending through the capacitor and the inductor, the terminal pin extending through the inductor in non-conductive relation and conductively coupled to the first set of electrode plates.

A feedthrough terminal assembly for an active implantable medical device, comprising:

• a conductive ferrule conductively coupled to a housing of the active implantable medical device;
• a feedthrough capacitor having first and second sets of electrode plates, the second set of electrode plates being conductively coupled to the ferrule;
• an inductor associated with the capacitor in non-conductive relation;
• means for maintaining the inductor in close association with the capacitor without forming a direct physical attachment therebetween;
• and
• a conductive terminal pin extending through the capacitor and the inductor, the terminal pin extending through the inductor in non-conductive relation and conductively coupled to the first set of electrode plates;
• wherein the capacitor's second set of electrode plates are internally grounded to the ferrule.