Electrically isolated connector for implantable medical devices

A neuromodulation adaptor configured to provide an electrical coupling between an otherwise incompatible stimulation lead and neurostimulator device, the neuromodulation adaptor comprising:

• a proximal portion including a plurality of electrical conductors spaced apart at a first pitch spacing of at least one of about 0.085 inches or about 0.080 inches (about 2 mm) and is configured to electrically engage with a corresponding plurality of electrical terminals of a neuro stimulator device;
• and
• a distal portion including a stimulation lead port assembly, the stimulation lead port assembly including a nonconductive upper portion and a lower portion configured to house the plurality of conductor elements and a set screw assembly, the plurality of conductor elements and set screw assembly spaced apart at a second pitch spacing of about 0.170 inches and is configured to electrically engage with a corresponding plurality of electrical connectors of a stimulation lead,
• wherein the set screw assembly includes a nonconductive set screw block, set screw, lower contact element, and o-ring constructed of a non-electrically conductive, deformable polymer, positioned between the set screw and a portion of the set screw block, wherein the set screw assembly further includes one or more nubs configured to improve electrical contact between the lower contact element and the plurality of electrical connectors of a stimulation lead.