Cusco Vaginal Speculum - Swiss PatternDDP Elite USA Cusco Vaginal Speculum Swiss Pattern is a double bladed instrument with the blades slightly angled from the spring handle. The blades can be held open by a screw mechanism once inserted into the vaginal canal. The speculum is available in various sizes of blades to accommodate a wide range of cases. Please note that website images are often representative of the product family and may not conform to the exact specifications or features