# K050159: Modification to: 3M Littmann Electronic Stethoscope, Model 3000

- Pathway: 510(k) (Special)
- Applicant: 3M Company
- Decided: Feb 22, 2005 after 28 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: 3 generations back to K771653 (1977). 4 ancestors in all.
48 later devices descend from it; 3 cite it directly.
0 of 53 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K041934: 3M Littmann Electronic Stethoscope, Model 3000, 3M Company (2004) Summary page 1.

## Most influential descendants
- K083903: 3M Littmann Electronic Stethoscope, Model 3200 (2009), 46 descendants of its own
- K160401: Tyto Stethoscope (2016), 21 descendants of its own
- K173448: CliniCloud Stethoscope (2018), 20 descendants of its own
- K181612: Tyto Stethoscope (OTC) (2018), 19 descendants of its own
- K200776: Eko CORE (2020), 13 descendants of its own

## Indications for use
The 3M™ Littmann® Electronic Stethoscope Model 3000 is intended for medical diagnostic purposes only. It may be used for the detection and amplification of sounds from heart, lungs, arteries, veins, and other internal organs with the use of a selective frequency. It can be used on any person undergoing a physical assessment.

Source page: https://510kreport.com/device/K050159
Methodology: https://510kreport.com/methodology