# K120721: EOS

- Pathway: 510(k) (Special)
- Applicant: Eos Imaging
- Decided: Apr 6, 2012 after 29 days
- Product code: MQB (Solid State X-Ray Imager (Flat Panel/Digital Imager))
- Device class: 2
- Regulation: 21 CFR 892.1680
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 4 generations back to K803130 (1981). 15 ancestors in all.
6 later devices descend from it; 1 cites it directly.
0 of 22 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K071546: EOS, Biospace Med (2007) Summary page 1.

## Most influential descendants
- K123740: EOS (2013), 5 descendants of its own
- K142773: EOS System (2015), 4 descendants of its own
- K152788: EOS System (2015), 3 descendants of its own
- K192079: EOSedge (2019), 2 descendants of its own
- K202394: EOSedge (2020), 1 descendant of its own

## Indications for use
The EQS is intended for use in general radiographic examinations and applications, excluding the evaluation of lung nodules and examinations involving fluoroscopy, angiography and mammography. EQS allows the radiographic acquisition of either one or two orthogonal X ray images for diagnostic purposes, in one single scan, of the whole body or a reduced area of investigation of a patient in the upright or seated position.

Source page: https://510kreport.com/device/K120721
Methodology: https://510kreport.com/methodology