CATETERE URINARIO AD URETRA ARTIFICIALE CON AZIONE SEQUENZIALE DI DRENAGGIO E BLOCCO AD ARIA,E RELATIVO PROCEDIMENTO DI IMPIEGO

摘要

A urinary catheter having a pair of longitudinally-spaced passage closing means which may be individually and sequentially operated for draining the urinary bladder and when in closed position providing an air lock effectively preventing transmission of infecting agents into the bladder.