21 C.F.R. § 890.1225 Chronaximeter.
Title 21 - Food and Drugs
(a) Identification. A chronaximeter is a device intended for medical purposes to measure neuromuscular excitability by means of a strength-duration curve that provides a basis for diagnosis and prognosis of neurological dysfunction. (b) Classification. Class II (performance standards).
Title 21: Food and Drugs
PART 890—PHYSICAL MEDICINE DEVICES
Subpart B—Physical Medicine Diagnostic Devices
§ 890.1225 Chronaximeter.
