# K191157: uMR 780, uMR 790

- Pathway: 510(k) (Special)
- Applicant: Shanghai United Imaging Healthcare Co., Ltd.
- Decided: May 29, 2019 after 28 days
- Product code: LNH (System, Nuclear Magnetic Resonance Imaging)
- Device class: 2
- Regulation: 21 CFR 892.1000
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 13 generations back to K971684 (1997). 37 ancestors in all.
10 later devices descend from it; 2 cite it directly.
4 of 48 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K181370: uMR 780, Shanghai United Imaging Healthcare Co., Ltd. (2018) Summary page 4.
- K181371: uMR 790, Shanghai United Imaging Healthcare Co., Ltd. (2018) Summary page 4.

## Most influential descendants
- K193200: uMR Omega (2020), 8 descendants of its own
- K220332: uMR Omega with uWS-MR-MRS (2022), 7 descendants of its own
- K230152: uMR Omega (2023), 6 descendants of its own
- K240540: uMR Omega (2024), 3 descendants of its own
- K243122: uMR Omega (2025), 2 descendants of its own

## Indications for use
The uMR 780/uMR790 system is indicated for use as a magnetic resonance diagnostic device (MRDD) that produces sagittal, transverse, coronal, and oblique cross sectional images, and spectroscopic images, and that display internal anatomical structure and/or function of the head, body and extremities. These images and the physical parameters derived from the images when interpreted by a trained physician yield information that may assist the diagnosis. Contrast agents may be used depending on the region of interest of the scan.

Source page: https://510kreport.com/device/K191157
Methodology: https://510kreport.com/methodology