Judgment of the Court (Second Chamber) of 12 May 2022.#Christoph Klein v European Commission.#Appeal – Article 265 TFEU – Action for failure to act – Directive 93/42/EEC – Medical devices – Article 8(1) and (2) – Safeguard clause procedure – Notification by a Member State of a decision prohibiting the placing on the market of a medical device – Prolonged lack of reaction on the part of the European Commission – No decision – Admissibility – Locus standi – Time limit for bringing proceedings – Request to act within a reasonable time – Principle of sound administration – Obligation to state reasons of the General Court of the European Union.#Case C-430/20 P.