# K920906: DGH-500 Pachymeter

- Pathway: 510(k) (Traditional)
- Applicant: Dgh Technology, Inc.
- Decided: Nov 2, 1992 after 249 days
- Product code: IYO (System, Imaging, Pulsed Echo, Ultrasonic)
- Device class: 2
- Regulation: 21 CFR 892.1560
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
21 later devices descend from it; 3 cite it directly.
0 of 22 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known.

## Most influential descendants
- K980357: Konan Noncon Robo Pachy Specular Microscope and Opticl Pachymeter (1998), 11 descendants of its own
- K062763: Noncon Robo Pachy F&a (2008), 10 descendants of its own
- K120264: Konan Specular Microscope Xiv (2012), 7 descendants of its own
- K993674: Pocket Ultrasonic Pachymeter (2000), 7 descendants of its own
- K094038: Compact Touch (2010), 3 descendants of its own

Source page: https://510kreport.com/device/K920906
Methodology: https://510kreport.com/methodology