# K910839: Ultimate 3000

- Pathway: 510(k) (Traditional)
- Applicant: Fonar Corp.
- Decided: Jul 26, 1991 after 149 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
No predicates in its family tree.
197 later devices descend from it; 1 cites it directly.
1 of 198 devices in its family (counting itself) has a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA has not posted a summary or statement for it, so its predicates are not known.

## Most influential descendants
- K982536: Perfusion CT (Computed Tomography) Software Package (1998), 196 descendants of its own
- K033832: Syngo Perfusion-CT (2003), 194 descendants of its own
- K050867: Syngo Body Perfusion-CT (2005), 192 descendants of its own
- K062351: Syngo Dual Energy (2006), 169 descendants of its own
- K073003: Syngo Dual Energy with Extended Functionally (2008), 168 descendants of its own

Source page: https://510kreport.com/device/K910839
Methodology: https://510kreport.com/methodology