Section 882.4030 - Skull plate anvil(a)Identification. A skull plate anvil is a device used to form alterable skull plates in the proper shape to fit the curvature of a patient's skull.(b)Classification. Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 882.9 .44 FR 51730, Sept. 4, 1979, as amended at 59 FR 63011, Dec. 7, 1994; 66 FR 38808 , July 25, 2001