A simple overhead sternum retractor.
D006348:Cardiac Surgical Procedures; D004864:Equipment and Supplies; D006321:Heart; D006801:Humans; D013249:Sternum / Q000601:surgery*; D013903:Thoracic Surgery / Q000600:supply & distribution*; D035441:Thoracic Wall
HEART SURGERY/equipment and supplies; STERNUM/surgery