Extensible implantable medical lead with sigmoidal conductors

摘要

An extensible implantable electrical lead includes a lead body having a proximal region and a distal region. The lead body is formed of a polymeric material that is extensible between a first length and a second length. A first plurality of electrical conductors are disposed within the lead body and extend between the proximal region and the distal region. The first plurality of electrical conductors are each electrically insulated and spaced apart from each other and form a side-by-side co-planar first sigmoidal pattern between the proximal region and the distal region.

主权项

1. An extensible implantable electrical lead comprising:
a lead body having a proximal region and a distal region, the lead body formed of an extensible polymeric material that is extensible between a first length and a second length, the second length being greater than the first length; and a first plurality of electrical conductors disposed within the lead body and extending between the proximal region and the distal region, the first plurality of electrical conductors are each electrically insulated and spaced apart from each other and form a side-by-side co-planar first sigmoidal pattern between the proximal region and the distal region and arranged in a first plane; and further comprising a second plurality of electrical conductors disposed within the lead body and extending between the proximal region and the distal region, the second plurality of electrical conductors are each electrically insulated and spaced apart from each other and form a side-by-side co-planar second sigmoidal pattern from the proximal region to the distal region and arranged in a second plane being different than the first plane, and the first plurality of electrical conductors are not in the second plane, and the second plurality of electrical conductors are not in the first plane, and the first and second planes are separate and parallel to each other, wherein the first sigmoidal pattern is out of phase with the second sigmoidal pattern, and a layer of the extensible polymeric material is disposed between and separating the first plurality of electrical conductors from the second plurality of electrical conductors.