# K844357: System 920 Argon/Dye Photocoagulator

- Pathway: 510(k) (Traditional)
- Applicant: Coherent Medical Group
- Decided: Jun 5, 1985 after 208 days
- Product code: HQF (Laser, Ophthalmic)
- Device class: 2
- Regulation: 21 CFR 886.4390
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
31 later devices descend from it; 1 cites it directly.
0 of 32 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
- K971950: Infinitech Multi-Spot Slit Lamp Laser Adapter (1997), 30 descendants of its own
- K043486: Pascal Photocoagulator, Product-Pascal-01 (2005), 29 descendants of its own
- K091666: Pascal Photocoagulator, Pascal-US (2009), 23 descendants of its own
- K092621: Pascal Streamline Photocoagulator (2009), 22 descendants of its own
- K081744: Pascal Synthesis Delivery System (2008), 17 descendants of its own

Source page: https://510kreport.com/device/K844357
Methodology: https://510kreport.com/methodology