# K864626: Cancellous Bone Screw

- Pathway: 510(k) (Traditional)
- Applicant: Dow Corning Wright
- Decided: Dec 15, 1986 after 20 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.
17 later devices descend from it; 2 cite it directly.
0 of 18 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
- K170444: PROCOTYL® PRIME Acetabular Cup System (2017), 16 descendants of its own
- K171181: PROCOTYL® PRIME E-CLASS™ XLPE Liner (2017), 10 descendants of its own
- K180263: EcoFit Vit E Acetabular System (2018), 5 descendants of its own
- K203420: EcoFit® Hip System (2021), 4 descendants of its own
- K180798: Prime Acetabular Cup System (2018), 2 descendants of its own

Source page: https://510kreport.com/device/K864626
Methodology: https://510kreport.com/methodology