# K890814: Danek Ring Fixator (DRF)

- Pathway: 510(k) (Traditional)
- Applicant: Danek Medical, Inc.
- Decided: Jun 13, 1989 after 117 days
- Product code: KTT (Appliance, Fixation, Nail/Blade/Plate Combination, Multiple Component)
- Device class: 2
- Regulation: 21 CFR 888.3030
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
10 later devices descend from it; 1 cites it directly.
0 of 11 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
- K071394: Modification to:Sbi Ringfix (2007), 9 descendants of its own
- K093057: Biomet Vision Footring System (2009), 5 descendants of its own
- K140463: Integra External Fixation System (2014), 3 descendants of its own
- K202833: Sequel External Fixation Device (2021), 1 descendant of its own
- K181630: Revolution External Plating System (2019), 1 descendant of its own

Source page: https://510kreport.com/device/K890814
Methodology: https://510kreport.com/methodology