A medical delivery system for delivering a fluid to a desired location within a body that includes a first member having an aperture, and a second member adapted to be positioned over the first member. It enables waste to channel into a garbage bag instead of accumulating in a relatively smaller and expensive tray, thereby, reducing the frequency of disposal and maintenance and minimizing unhygienic conditions that occur when waste exceeds tray capacity. Accordingly, when a bus bar body 30 including the bus bar 31 and the grommet 32 is fitted in the through hole 11A, the grommet 32 has compression ratios equal to each other in the vertical and transverse directions. The second terminal includes a second connecting portion provided in or on the first side wall. Their production processes, pressure-sensitive adhesive compositions, self-adhesive polarizers and LCDs are also disclosed. The tool main body may include an electric motor, a controller for controlling the electric motor, and a centrifugal fan rotatably driven by the electric motor for producing a flow of air.