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45 FR 7907, Feb. 5, 1980, unless otherwise noted.
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Nomenclature changes to part 870 appear at 73 FR 35341, June 23, 2008.
(a) Identification. An impedance plethysmograph is a device used to estimate peripheral blood flow by measuring electrical impedance changes in a region of the body such as the arms and legs.
(b) Classification. Class II (special controls). The device, when it is a body composition analyzer which is not intended to diagnose or treat any medical condition, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 870.9.
[45 FR 7907, Feb. 5, 1980, as amended at 84 FR 71812, Dec. 30, 2019]