In a flexible connector having a fitting portion for connection, with a counterpart connector. The laser crystal oscillates laser beam from a second end face when an excitation beam is projected to a first end face. The color solid is rotated so as that the axis becomes parallel to the luminance axis Y and is so translated in parallel manner that the pixel of the minimum luminance coincides with the original point of the color space. These conjugates display vastly improved therapeutic efficacy in animal tumor models compared to the previously described agents. An ultrasound energy attenuator member is positioned adjacent to the proximal ultrasound energy delivery surface and is made of a material to at least partially attenuate ultrasound energy from the proximal ultrasound energy delivery surface. The detection antenna also contains a single guard for all of the measuring electrodes.