A male coupler for a guidewire, the guidewire having a hollow walled tube, the male coupler comprising a connector section, coupled with the guidewire, a portion of the connector section having a diameter smaller than the diameter of the hollow tube, at least one conducting ring coupled with the connector section where the diameter of the connector section is smaller the diameter of the guidewire, wherein the diameter of connector section and the at least one conducting ring substantially equals the diameter of the guidewire.