Catheters for urological purposes; catheters for medical use; catheters; catheters for use in urology; urological apparatus and instruments; medical and surgical catheters; medical apparatus for urethral catheterization, namely, catheters; medical instrument for urethral catheterization, namely, catheters; medical catheter placement devices; medical apparatus for urological purposes; medical apparatus, namely, catheters and parts and fittings therefor; medical instruments for use in catheteri...