Riegel v. Medtronic, Inc., 552 U.S. 312 (2008), is a United States Supreme Court case in which the Court held that the pre-emption clause of the Medical Device Amendment bars state common-law claims that challenge the effectiveness or safety of a medical device marketed in a form that received premarket approval from the Food and Drug Administration. It modified the rule in Medtronic, Inc. v. Lohr. See also Eli Lilly & Co. v. Medtronic, Inc. FDA Preemption List of United States Supreme Court cases, volume 552 References Further reading External links United States Supreme Court cases United States Supreme Court cases of the Roberts Court United States federal preemption law Medtronic litigation