Patent ID: 7777929

Claim:
An electronic device for creating at least one predetermined stimulus at the device output, the device comprising: an electrically non-conductive holey structure carrying at least two active electrically conductive cores electrically insulated from one another along their lengths, for supplying a potential difference between them, and at least one stimulus creator configured to be affected by said potential difference to provide a predetermined output of the device, said at least two active electrically conductive cores comprising at least one of the following combinations: two metal cores, two semiconductor cores, and one metal and one semiconductor core, said at least two active electrically conductive cores being made of different electrically conductive materials and being connected in series by an electrical connector connecting distal ends of the cores, the device being configured and operable as a temperature source creating a temperature change at the distal end of the device in response to the potential difference applied between proximal ends of said cores.