# K223517: Clear Aligner

- Pathway: 510(k) (Traditional)
- Applicant: Wuxi EA Medical Instruments Technologies Limited.
- Decided: Jun 13, 2023 after 202 days
- Product code: NXC (Aligner, Sequential)
- Device class: 2
- Regulation: 21 CFR 872.5470
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 6 generations back to K780619 (1978). 7 ancestors in all.
1 later device descends from it; 1 cites it directly.
0 of 9 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K181739: Invisalign System with Mandibular Advancement Feature, Align Technology, Inc. (2018) Summary page 4.
- K203688: Clear Aligner, Wuxi EA Medical Instruments Technologies Limited. (2021) Summary page 4.

## Most influential descendants
- K250487: SparkTM Clear Aligner System (2025), 0 descendants of its own

## Indications for use
Indicated for use in alignment of teeth through orthodontic treatment of malocclusion.

Source page: https://510kreport.com/device/K223517
Methodology: https://510kreport.com/methodology