Implantable bifurcated neurostimulator adapters

An adapter for coupling a pair of implantable neurostimulator lead extension plugs to a connector port of a neurostimulator device includes a connector coupled to a first end of an elongate body and a flexible bifurcation member coupled to a second end of the elongate body, wherein the bifurcation member includes a first branch, to which a first housing, having first and second ports, is coupled, and a second branch, to which a second housing, having first and second ports, is coupled. Openings of the first and second ports of each housing provide for side-by-side insertion of first and second connector terminals of one of the lead extension plugs. Contacts within each port provide for electrical coupling with corresponding contacts of the connector terminals of the plug, and are coupled to corresponding contacts of the adapter connector via conductors extending within the elongate body between the corresponding housing and connector.