Ferrule with strain relief spacer for implantable medical device

A ferrule for an implantable medical device, the ferrule comprising:

• a first frame body to attach to an insulator assembly of the implantable medical device;
• a second frame body to attach to a housing of the implantable medical device;
• and
• a spacer flange that connects between and cantilevers the second frame body from the first frame body, the spacer flange to deflect relative to the first frame body in response to forces applied to the second frame body to limit transfer of forces from the second frame body to the first frame body.

A feedthrough device for an implantable medical device comprising:

• a ferrule for an implantable medical device, the ferrule comprising:
• a first frame body defining an interior opening;
• a second frame body to attach to a housing of the implantable medical device;
• and
• a spacer flange that connects between and cantilevers the second frame body from the first frame body, the spacer flange to deflect relative to the first frame body in response to forces applied to the second frame body to reduce transfer of forces from the second frame body to the first frame body;
• and
• an insulator assembly disposed within the interior opening, the insulator body including:
• an insulator body hermetically coupled to the first frame body;
• and
• a number of conductive elements extending through the insulator body.