LITHOTRITY

n's. Li2th-o2t'ri2t-u2r, -ia. Lat., lithotritia(ffom At'flos, astone,and ierere, to rub). ~Fr.,lithotrie, litho tri tie. Ger., Steinbrechung, Steinzertriimmerung, Steinzermalmung, Steinzerreibmig. It., litotrizia. The operation of crushing a stone in the bladder. [E.] Civiale's 1. L. in which the principle is the reverse of that on which the English operation is based. No attempt is made to depre the bladder and allow the stone to fall into the instrument, but the instrument is applied to the stone in the position which the latter naturally takes in the centre of the bladder and the space beneath it. [E.] Electrical 1. The use of galvanism to decompose vesical calculi. An instrument containing a terminal electrode and insulated wires grasps the stone and brings it into the centre of the bladder filled with water. First suggested by Harle in 1823. [Morgan (a, 34).] English 1. L. in which the handle of the lithotrite is raised till the blade is depre ed below the level of the bladder and the stone falls into it by its own weight. [E.] Nephro-1. The operation of cutting down upon a stone in the kidney; as often employed, the operation of cutting out such a stone. Perineal 1. Of Dolbeau, incision of the perinseum and membranous urethra, dilatation of the prostate and neck of the bladder, and crushing of the stone. [" N. Y. Med. Jour.," Oct. 6, 1888, p. 372 (a, 34).] [s. 657]