# K961848: 3M Littmann Electronic Stethoscope

- Pathway: 510(k) (Traditional)
- Applicant: Minnesota Mining and Mfg. Co.
- Decided: Sep 26, 1997 after 501 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: 1 generation back to K771653 (1977). 1 ancestor in all.
54 later devices descend from it; 5 cite it directly.
0 of 56 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K771653: Electronic Stethoscope, 3M Company (1977) Summary page 1.

## Most influential descendants
- K041934: 3M Littmann Electronic Stethoscope, Model 3000 (2004), 50 descendants of its own
- K050159: Modification to: 3M Littmann Electronic Stethoscope, Model 3000 (2005), 48 descendants of its own
- 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

## Indications for use
The 3M Littmann™ Electronic Stethoscope is a diagnostic aid and used as part of a physical assessment of a patient by a Health Care Professional. It can be used for the amplification of faint heart, lung and other body sounds as well as normal auscultation and selective frequency filtering. The extended rage mode amplifies sound over a broad range of frequencies, including the range where some lung and prosthetic heart valve sounds occur.

Source page: https://510kreport.com/device/K961848
Methodology: https://510kreport.com/methodology