Electrode device and a needle electrode for use in delivery of electrical pulses to a desired tissue of a mammal

An electrode device for use in delivery of electrical pulses to a desired tissue of a mammal, wherein the electrode device comprises:

• a handle portion comprising a first electrode connection and a second electrode connection,
• a first needle electrode comprising a first attachment end and a second needle electrode comprising a second attachment end, wherein the first and second attachment ends are configured for releasable attachment to the first electrode connection and the second electrode connection, respectively;
• wherein:
• each one of the first and second electrode connections is configured with an inner electrode position and an outer electrode position, wherein the inner and outer electrode positions are electrically conducting;
• and in that
• each one of the first and second attachment ends is configured with an insulating part configured to electrically insulate one out of the inner electrode position and the outer electrode position when located therein, and configured with an electrically conducting part configured to conduct current supplied to the other one out of the inner electrode position or the outer electrode position when located therein.