PORTEX

[ ARTIFICIAL PARTS OF THE HUMAN BODY, ] TUBING FOR ANAESTHETIC AIRWAYS, AND CATHETERS, [ BLOOD TRANSFUSIONS, PENICILLIN ADMINISTRATION, GASTRIC ANALYSIS, ] AND FOR WOUND DRAINAGE, [ UTERINE BOUGIES; ] FACE-PIECES, NASAL PIECES, TRACHEAL TUBES, TRACHEOTOMY TUBES, LARYNGOTOMY TUBES AND VALVES; [ OBTURATORS; SCREENS FOR WEAR IN THE MOUTH TO ENCOURAGE CORRECT BREATHING, AND LINKS FOR JOINING SEVERED ARTERIES ]