English to Spanish Medical Medical (general) It´s about a document titled "Instructions for care after CT scan or IV with Contrast"

At the end of the document appears a chart titled File Specifitation Information, where appears the terms: "Gripper/Lock-up", "stub", "punch", "binding", "registering plys", "screens", "backer(s)", and I really do not know how to translate them; could anyone of you help me please? I will appreciate it so very much.
Many thanks in advance.