An articulated arm for holding surgical instruments, having elongated arm members; rotational joints connecting the arm members end to end, such that members are pivotable about the joints and at least one of the joints is selectively lockable by fluid pressure; and a plurality of tubes communicating fluid pressure between two adjacent joints. The extract of Pseudolysimachion genus plant and the catalpol derivatives isolated therefrom shows potent suppressing effect on elevated IgE, IL-4 and IL-13 levels and eosinophilia in the plasma and BALF, and mucus overproduction in the lung tissues in an OVA-induced asthmatic mouse model. The pattern to which the amplitude ramped electric signals are provided may be located on the surface of the touchscreen, or alternatively on the backside of the touchscreen. However, a part of the ice grows in the at least one non-projecting portion or area, and partially connected ice is formed by the connection of the ice formed in the non-projecting portion or area to the ice grown in the adjacent ice making region.