Connector for implantable medical device

A stack assembly for an implantable medical device, the stack assembly configured to accept a lead therein and electrically couple to at least two lead contacts of the lead, the implantable medical device including at least two feedthrough wires extending from a housing, the stack assembly comprising:

• at least two connector housings including a first connector housing and a second connector housing, each of the connector housings disposed completely outside of the housing of the implantable medical device and including:
• a bore portion including a bore hole therethrough, the bore hole including a bore hole axis, the bore hole being sized and shaped to accept the lead within the bore hole;
• and
• an attachment portion coupled to the bore portion, wherein the attachment portion and the bore portion are unitary, the attachment portion including an attachment hole within the attachment portion sized and shaped to accept one of the feedthrough wires within the attachment hole, the attachment hole including an attachment hole axis offset from and non-parallel to the bore hole axis, wherein the bore hole axes of the at least two connector housings are colinear;
• and
• at least one seal disposed between the first connector housing and the second connector housing, the seal configured to sealingly engage with the lead with the lead disposed within the bore holes of the first connector housing and the second connector housing.

A stack assembly for an implantable medical device, the stack assembly configured to accept a lead therein and electrically couple to a plurality of lead contacts of the lead, the implantable medical device including a plurality of feedthrough wires extending from a housing, the stack assembly comprising:

• a plurality of connector housings corresponding to the plurality of lead contacts of the lead, each of the plurality of connector housings disposed completely outside of the housing of the implantable medical device and including:
• a bore portion including a bore hole therethrough, the bore hole including a bore hole axis, the bore hole being sized and shaped to accept the lead within the bore hole;
• and
• an attachment portion coupled to the bore portion, wherein the attachment portion and the bore portion are unitary, the attachment portion including an attachment hole within the attachment portion sized and shaped to accept one of the plurality of feedthrough wires within the attachment hole, the attachment hole including an attachment hole axis offset from and non-parallel to the bore hole axis, wherein the bore hole axes of the plurality of connector housings are colinear;
• a plurality of seals with one seal of the plurality of seals disposed between each pair of adjacent connector housings of the plurality of connector housings, each of the plurality of seals being configured to sealingly engage with the lead with the lead disposed within the bore holes of the plurality of connector housings;
• and
• a plurality of springs with one spring disposed within the bore hole of the bore portion of each of the plurality of connector housings, each of the springs configured to electrically couple to one of the plurality of lead contacts with the lead disposed within each of the bore holes, wherein the bore holes of the plurality of connector housings form a bore within the stack assembly, the bore sized and shaped to accept a portion of the lead within the bore.