Pyelolithotomy by the use of a hydrophilous macromolecular binding material ("pyeloform" pyelotomy).

The use of a synthetic macromolecular hydrophilous binding material for the extraction of multiple renal calculi (" Pyeloform " pyelotomy) is reported. An account of the results of animal studies in vitro is given and the possibilities of the method in are pointed out.