A vaginal cervical retractor used to maneuver and visualize the uterus during various medical examinations and procedures would include an inner tube provided with a movable pair of plastic caps designed to be inserted into the uterine cavity. A cervical cap is secured to this tube to insure that the...http://www.google.com/patents/US5209754?utm_source=gb-gplus-sharePatent US5209754 - Vaginal cervical retractor elevator
