A surgical stapling and severing instrument particularly suited to endoscopic procedures incorporates a handle that produces separate closing and firing motions to actuate an end effector. A radiation element is provided so as to fix to the laminating dielectric block, wherein one electrode of the filter is electrically connected to the radiation element. A yarn speed is obtained from a loop length of a stitch for each knitting needle and a knitting speed calculated on the basis of knitting data used in the knitting machine body. As a result, a group of locked devices can be used as a barricade as well as a warning signs. The support legs are rotatably received in the receiving portions of the main body respectively. The resulting polyimide itself is soluble in low boiling organic solvents for general purpose use, typically methyl ethyl ketone.