[Plastic or metallic ring as an aid in valvar prostheses].
D006350:Heart Valve Prosthesis; D008670:Metals; D010969:Plastics; D013525:Surgical Instruments; D013536:Suture Techniques
D008670:Metals; D010969:Plastics
Anel Plástico ou metálico como auxiliar nas próteses valvares.