The Angelseal PDA occluder is a percutaneous, transcatheter device especially designed for closure of normally located PDA. The treatment is feasible in the very young pediatric population. The occluder is made of a Nitinol wire mesh shaped into a cylindrical plug with a flange to secure the occluder in the right position. Three pieces of polyester fabric swen inside help close the hole and provide a foundation for growth of tissue over the occluder after placement. The product adopts the patented technology Intergal Weaving to provide a non stick-out structure. Kewei-Rising provides full range of sizes and the service of tailor made for those irregular PDAs. Model NO.: Type A Productivity: 25, 000 pcs/year Company:Yatai Scientific Co., Ltd.