Patent ID: 8428724

Claim:
An electrical contact for a connector assembly electrically coupled to contact rings on an implantable medical device, the electrical contact comprising: a housing with a pair of opposing sidewalls each with center openings oriented generally concentrically around a center axis, the housing comprising a recess with a recess diameter; an inner coil located in the recess with a coil axis generally parallel to the center axis of the center openings, the inner coil comprising an outer diameter less than the recess diameter, and an inner diameter greater than a center opening diameter; and an outer coil arranged in a generally torroidal-shape and threaded onto the inner coil, the outer coil comprising an outer diameter less than the recess diameter, and an inner diameter less than the center opening diameter, wherein the outer coil is radially expanded within the recess in response to engagement with the contact rings on the implantable medical device, such that the outer diameter of the outer coil is at least equal to the recess diameter.