Clinical portals in the nature of self-sealing non-metal gaskets serving as pass through devices for providing access to patient care equipment and for carrying patient services through walls in health care environments; clinical portals in the nature of sleeves and collars for positioning in and around openings in walls, for facilitating access to patient care equipment and for carrying out patient services through corridor walls in health care environments; clinical pass through devices fitted with non-metal self-sealing gaskets for permitting secure, sealed connection of patient care and monitoring equipment, providing for the pass through of medical lines, wires, cords, cables and tubing, and to facilitate access to patient care and monitoring equipment by medical personnel in a location separate from patients receiving care, so as to maintain the integrity of sterile patient rooms or to otherwise restricted areas