APPARATUS FOR ENDOSCOPIC GALVANO-CAUTERY OPERATIONS ON THE VESICAL ORIFICE

This apparatus is intended primarily for operations on the moderately hypertrophied prostate. It consists of a Braasch direct-vision cystoscope for which operating windows with a hole for the introduction of the cauteries have been made for me by the manufacturers. These cauteries I have had made in two forms, the cautery knife and the cautery curet. As the electrode does not readily pass through the hole in the operating window, a separate window has to be provided for each cautery. These cauteries are to be used under water and, therefore, certain special precautions have to be observed in their manufacture. They must be absolutely impervious to water. If the slightest trace of moisture leaks into them it will cause a short circuit. The distal end requires very particular attention. It must be sealed in a manner to render the instrument absolutely water-proof. An ordinary cement will not do, for it