Trade name: Smart Flex Vascular Stent System (5 - 8 Mm). Technical Name: Stent for peripheral arteries. ANVISA registration number: 81356112255. Risk class: III. Model Affected: Smart Flex (5-8). Serial numbers affected: 41064; 41327; 41109; 41329; 41460; 41331; 41304; 41014; 40941; 41193; 41337; 40938; 41343; 41116; 41470; 41473; 41012; 41117; 41474; 41475; 41016; 41195; 41476; 41118; 41019; 41070