This early 20th C apparatus was made by the genito-urinary MFG. Co.Ltd from 26a Devonshire Street, London W.1. Despite the name it is not urological in function, but is an apparatus designed to induce a pneumothorax (a collapse of the lung).
This procedure was performed on patients with tuberculosis in the belief that TB was less likley to spread through deflated lung and that healing would be accelerated. After a thoracotomy incision, the canular was passed into the intrapleural space and gas would be blown into the cavity, forcing the lung to collapse. 7″ x 9″ x 4 1/2″.
External link: London science museum website