# K896749: Piezon Master 400

- Pathway: 510(k) (Traditional)
- Applicant: Electro Medical Systems (Ems Sa)
- Decided: Aug 31, 1990 after 274 days
- Product code: ELC (Scaler, Ultrasonic)
- Device class: 2
- Regulation: 21 CFR 872.4850
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
32 later devices descend from it; 3 cite it directly.
0 of 33 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
- K992504: Ems Kermit (2000), 30 descendants of its own
- K050710: Minimaster Ultrasonic Scaler (2005), 17 descendants of its own
- K093723: Ems Minimaster Led (2010), 14 descendants of its own
- K110173: Ems Air-Flow Master Piezon (2011), 13 descendants of its own
- K022328: Ems Piezon Master 600 (2002), 12 descendants of its own

Source page: https://510kreport.com/device/K896749
Methodology: https://510kreport.com/methodology