The invention provides a nested tubing cannula which comprises outer and inner elongate tubular members, both having a proximal end, a distal end, and a lumen therebetween. A control part controls a power supply or conveyance interval of the heat member in accordance with the presenceabsence sensor, top sensor, width sensor, central portion temperature sensor, and end portion temperature sensor. The phase difference signal modulation circuit modulates the second phase difference signals into third phase difference signals, and the oscillator circuit oscillates based on the first and third signals. The metal salt may be iron, cobalt, nickel, chromium, vanadium or mixtures thereof. The initial digital rights authorization to access secure content stored in said protected storage locations can be revised.