Catheter

(kath' -et-er). A tube-like instrument for evacuating the liquid of a cavity, usually the bladder. C, Bozeman's, a double current uterine catheter. C, Eustachian, an instruct 9 9 0 0 0 n rubber and of varying caliber, somewhat triangular on section, used for the dilatation of laryngeal strictures. C, Self-retaining, one that will hold itself within the bladder without other appliances to a ist it.