# K251494: Eko Foundation Analysis Software with Transformers (EFAST)

- Pathway: 510(k) (Traditional)
- Applicant: Eko Health, Inc.
- Decided: Aug 12, 2025 after 89 days
- Product code: DQD (Stethoscope, Electronic)
- Device class: 2
- Regulation: 21 CFR 870.1875
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 13 generations back to K910772 (1991). 100 ancestors in all.
No later device cites it as a predicate yet.
0 of 101 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K213794: Eko Murmur Analysis Software (EMAS), Eko Devices, Inc. (2022) Summary page 5.

## Indications for use
The Eko Foundation Analysis Software with Transformers (EFAST) is intended to support healthcare professionals in the evaluation of patients’ heart sounds and electrocardiograms (ECGs). The software calculates heart rate, detects the presence of murmurs associated with Structural Heart Disease, and determines murmur timing including the timing of S1, S2 heart sounds. When ECG is available, the software detects the presence of atrial fibrillation and normal sinus rhythm. The software is intended for use by or under the supervision of a healthcare professional and is not to be used as a sole means of diagnosis. The interpretations of heart sounds and ECG offered by the software are designed to support and not replace the healthcare professional’s clinical judgment. The murmur detection is intended for use on both pediatric and adult patients, while the detection of atrial fibrillation is intended for use on adults (> 18 years).

Source page: https://510kreport.com/device/K251494
Methodology: https://510kreport.com/methodology