A bifurcated stent for insertion into a bifurcated vessel such as a blood vessel. In one embodiment the wand incorporates a wireless transmitter and motion-sensitive circuitry adapted to actuate the transmitter in response to particular learned wand motions. The present invention can effectively solve the problem of the uplink data packet loss due to the time difference existing between the update to the Tunnel Endpoint Identifier and the routing table by the eNB when inter-eNB switch is performed via X2 and the S-GW has changed, thus enhancing the user experience during the switch. Additionally, at least one of the first or second electrode stacks comprises two electrodes including a top electrode stacked over a bottom electrode, wherein the top and bottom electrodes are separated by an electrical insulator. The low power potential corresponds to a potential difference between the high power potential and a high power potential. The image display device includes a first reflection pattern and a second reflection pattern which are disposed on a plate at a predetermined interval from a light source and which pass light having an acute angle emitted by the light source.