1. Coude tip version, designed to assist in negotiation of restrictions, such as the male urethra when a stricture is present

2. Chlamydiae belonging to Subgroup A occur in both the normal male urethra and in patients with urethro-adnexitis, which means thatChlamydiae must be attributed with a significant pathogenetic role in certain cases of abacterial urethroadnexitis.