Electrical connector and method for manufacturing an electrical connector

An implantable medical device comprising:

• a case including:
• operational circuitry for providing therapy;
• and
• an electrical feedthrough electrically connected to the circuit;
• and
• a lead connector block attached to the housing at the electrical feedthrough, the lead connector block configured to receive at least one terminal pin of an electrical lead, the terminal pin including at least one terminal pin contact, the lead connector block including:
• an electrical connector electrically connected to the electrical feedthrough for detachably connecting the operational circuitry to the electrical lead, the connector including:
• a conductive housing extending from a proximal end to a distal end, the conductive housing having an interior surface forming a hollow cylinder;
• and
• a plurality of spring contacts projecting from the interior surface of the conductive housing, wherein at least one spring contact of the plurality of spring contacts extends from the interior surface, along a length of the conductive housing, to a tip positioned toward the proximal end, wherein a portion of the at least one spring contact along the length extends toward a longitudinal axis of the conductive housing, and wherein the plurality of spring contacts is at least partially contained within the conductive housing and configured to form the electrical connection to the terminal pin contact of the electrical lead inserted within the conductive housing;
• wherein the conductive housing and the plurality of spring contacts are integrally formed by an additive manufacturing process such that the electrical connector is a unitary structure.