The invention relates to an anti-slip protection device for a housing head for medical instruments, especially intraluminal instruments for resection or anastomosis operations, comprising a terminal device which can be fixed to the housing head in such a way as to project out and which can be remote-controllably removed from the housing head in at least two sections. In one aspect of the invention, a paging device includes a digital signal processor for receiving and compressing a voice response to a page prior to transmission back to the paging party. A layer of cementitious material is applied over an exterior surface of the form so as to produce a rigid side wall. The super absorbent polymer has excellent liquid permeability even when swollen without a reduction in centrifuge retention capacity or absorbency under load while having improved permeability. The control signal generation circuit adjusts an activation timing of the control signal in response to the delay signal.