# K012304: Adc 656 Electronic Stethoscope

- Pathway: 510(k) (Traditional)
- Applicant: American Diagnostic Corp.
- Decided: Nov 1, 2001 after 104 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: 2 generations back to K771653 (1977). 2 ancestors in all.
1 later device descends from it; 1 cites it directly.
0 of 4 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K961857: Labtron Electromax Electronic Stethoscope Model NO. 04-1060, Graham-Field, Inc. (1996) Summary page 2.

## Most influential descendants
- K070550: Ausco ES-3100 (2007), 0 descendants of its own

## Indications for use
American Diagnostic Corporation’s number 656 Electronic Stethoscope indications for use as an electronic stethoscope which will electronically amplfy sounds associated with the heart, arteries, veins and other internal organs. American Diagnostic intends to provide this device for use by healthcare providers and not for use by the general public.

Source page: https://510kreport.com/device/K012304
Methodology: https://510kreport.com/methodology