# K890121: Modified DPX Bone Densitometer

- Pathway: 510(k) (Traditional)
- Applicant: Lunar
- Decided: Apr 10, 1990 after 454 days
- Product code: KGI (Densitometer, Bone)
- Device class: 2
- Regulation: 21 CFR 892.1170
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
18 later devices descend from it; 1 cites it directly.
0 of 19 devices in its family (counting itself) have 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
- K961007: Expert Spine Morphotietry Reference (1996), 17 descendants of its own
- K011917: Advanced Hip Assessment Software (2001), 16 descendants of its own
- K061561: Hip Structural Analysis Software Option for the Hologic QDR X-Ray Bone Densitometers (2006), 13 descendants of its own
- K072664: GE Lunar Femur Strength Software (2008), 7 descendants of its own
- K082402: Osdx Hip BMD System (2008), 6 descendants of its own

Source page: https://510kreport.com/device/K890121
Methodology: https://510kreport.com/methodology