# K233823: Ultrasonic Fetal Doppler

- Pathway: 510(k) (Traditional)
- Applicant: Shenzhen Jamr Technology Co., Ltd.
- Decided: Jun 28, 2024 after 210 days
- Product code: KNG (Monitor, Ultrasonic, Fetal)
- Device class: 2
- Regulation: 21 CFR 884.2660
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
No later device cites it as a predicate yet.
0 of 1 device in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA’s file for it is a 510(k) statement, which names no predicate.

## Indications for use
The Ultrasonic Fetal Doppler (Model M520, M521, M523) is intended to detect and display fetal heart rate, and used by health care professionals in a hospital, clinic, community, and home setting for singleton pregnancies after 16 weeks gestation.

Source page: https://510kreport.com/device/K233823
Methodology: https://510kreport.com/methodology