# K931681: Cannulated Navicular Screw

- Pathway: 510(k) (Traditional)
- Applicant: Onyx Medical Corp.
- Decided: Apr 25, 1994 after 385 days
- Product code: HWC (Screw, Fixation, Bone)
- Device class: 2
- Regulation: 21 CFR 888.3040
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
337 later devices descend from it; 1 cites it directly.
1 of 338 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
- K020791: HBS Headless Bone Screw (2002), 336 descendants of its own
- K024233: Kompressor Screw System (2003), 299 descendants of its own
- K040356: Kompressor Screw System (2004), 255 descendants of its own
- K060071: Nexa Compression Screw (2006), 251 descendants of its own
- K063298: Osteomed Headless Cannulated Screw System (2007), 246 descendants of its own

Source page: https://510kreport.com/device/K931681
Methodology: https://510kreport.com/methodology