# K233799: Wrist Blood Pressure Monitor (222); Wrist Blood Pressure Monitor (222BT); Wrist Blood Pressure Monitor (W1681BL); Wrist Blood Pressure Monitor (W1681BT); Wrist Blood Pressure Monitor (W1681R)

- Pathway: 510(k) (Traditional)
- Applicant: Shenzhen Yuezhongxing Technology Co., Ltd.
- Decided: Mar 15, 2024 after 107 days
- Product code: DXN (System, Measurement, Blood-Pressure, Non-Invasive)
- Device class: 2
- Regulation: 21 CFR 870.1130
- 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 K190693 (2019). 2 ancestors in all.
No later device cites it as a predicate yet.
0 of 3 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K211041: Wrist Blood Pressure Monitor, Model Name:W203, Wrist Blood Pressure Monitor, Model Name:W202, Wrist Blood Pressure Monitor, Model Name:W1681, Shenzhen Yuezhongxing Technology Co., Ltd. (2021) Summary page 5.

## Indications for use
The device is a digital monitor intended for use in measuring blood pressure and pulse rate in adult patient population with wrist circumference ranging from 5 3/8 inches to 7 2/3 inches (13.5cm to 19.5cm). The device detects the appearance of irregular hearbeats during measurement and gives a warning signal with reading.

Source page: https://510kreport.com/device/K233799
Methodology: https://510kreport.com/methodology