# K837235: Model 920 Argon Laser System

- Pathway: 510(k) (Traditional)
- Applicant: Coherent Radiation Laboratories
- Decided: Apr 4, 1983 after 34 days
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
66 later devices descend from it; 1 cites it directly.
0 of 67 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
- K022181: Novus Varia Ophthalmic Laser and Delivery Devices with Accessories (2002), 65 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/K837235
Methodology: https://510kreport.com/methodology