Radiographic ECG/respirator synchronizer.

(a) Identification. A radiographic ECG/respirator synchronizer is a device intended to be used to coordinate an x-ray film exposure with the signal from an electrocardiograph (ECG) or respirator at a predetermined phase of the cardiac or respiratory cycle. (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 § 892.9. [55 FR 48444, Nov. 20, 1990, as amended at 65 FR 2323, Jan. 14, 2000]