Section 878.3900 - Inflatable extremity splint(a)Identification. An inflatable extremity splint is a device intended to be inflated to immobilize a limb or an extremity.(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 § 878.9 .53 FR 23872, June 24, 1988, as amended at 59 FR 63010, Dec. 7, 1994; 66 FR 38802 , July 25, 2001